Answer:
25% change
Step-by-step explanation:
find change by diff/org
so 5/20
5/20 =?/100
multiply by 5
25/100=?/100
?=25
There are 14 girls in the Girl Scout troop. Each of them has sold 21 boxes of cookies this year. How many boxes of cookies have they sold altogether? Use any of the multiplication strategies to find your answer.
A. 294 boxes
B. 284 boxes
C. 204 boxes
D. 304 boxes
Answer: 294
Step-by-step explanation:
multiply 14 by 21
I hate math
whats the answer to thiss
see the next one this was wrong i am sorry
Answer:
B, G, F
Step-by-step explanation:
That is the answer because 4^5 is (4 x 4) 5 times. And 9^3 is (9 x 9) 3 times. So you can write it like (4 x 4 x 4 x 4 x 4) x (9 x 9 x 9) or 4 x 4 x 4^2 x 4 x 9 x 9^2 Or 4 x 4 x 4 x 4 x 4 x 9 x 9 x 9. For you to know how to solve it next time. :) <3
Zachary went into a grocery store and bought 5 bananas and 2 mangos, costing a total of $5.50. Olivia went into the same grocery store and bought 6 bananas and 10 mangos, costing a total of $12.30. Write a system of equations that could be used to determine the price of each banana and the price of each mango. Define the variables that you use to write the system.
System:
5b+2m=5.5
6b+10m=12.3
Variables:
b = cost of bananas
m = cost of mangoes
Explanation:
Zachary bought 5 bananas and 2 mangoes so you multiply each by the cost of them (5b and 2m) and then add them together (5b+2m) to find the total cost (5.5). This is the same for Olivia. If you solve the system you can figure out how much the bananas and mangoes cost.
The cost of the bananas and the mangoes will be $0.80 and $0.75, respectively.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
Zachary went into a supermarket and purchased 5 bananas and 2 mangos, costing a sum of $5.50. Olivia went into a similar supermarket and purchased 6 bananas and 10 mangos, costing a sum of $12.30.
Let 'x' be the cost of a banana and 'y' be the cost of a mango. Then the equation is given as,
5x + 2y = 5.50 ...1
6x + 10y = 12.30 ...2
From equations 1 and 2, then we have
6x + 10[(5.50 - 5x) / 2] = 12.30
6x + 27.5 - 25x = 12.30
19x = 15.2
x = $0.8
Then the value of the variable 'y' is given as,
5(0.8) + 2y = 5.50
4 + 2y = 5.5
2y = 1.5
y = $0.75
The cost of the bananas and the mangoes will be $0.80 and $0.75, respectively.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
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Can someone help, please
Answer:
y = 7x +10
Step-by-step explanation:
Given a y-intercept of 10 and a slope of 7, you want the equation of the line in slope-intercept form.
Slope-intercept equationThe slope-intercept form equation of a line is ...
y = mx +b . . . . . . . where m is the slope, and b is the y-intercept
You are given a slope of 7 (m=7) and a y-intercept of 10 (b=10), so the equation is ...
y = 7x +10
What’s the answer to 10-
11-12-13
-26 Is the answer.
____________________
First you have to do: 10 - 11 = -1
Then its -1 - 12 or -1 + -12 (same thing) = -13
After that, do -13 + -13 = -26.
can some one help me :(
Answer:
Column C in order: 0,1,2,5,6,5
Step-by-step explanation:
Can someone help, please
Answer:
[tex]\frac{9}{5}[/tex]
Step-by-step explanation:
the slope is the change in y over the change in x
From the points given, your y's are 10 and 1.
From the points given, your x's are 7 and 2. To find the changes subtract them.
[tex]\frac{10-1}{7-2}[/tex] = [tex]\frac{9}{5}[/tex]
Answer:
slope = 9/5
Step-by-step explanation:
[tex]m=\frac{10-1}{7-2} =\frac{9}{5}[/tex]
Hope this helps
What is
(6-5^4) + (12^3+-1)
Answer:
Step-by-step explanation:
1108
Answer: 1108
Step-by-step explanation:
(6-5^4)= -619
(12^3+-1)= 1727
1727-619 OR -619+1727 = 1108
Can someone please help me? This is a Math crossword puzzle.
i don't know I am so sorry that I cant help you
Answer:
1. Down: Solve
2. Down: Rational number
3. Down: Negative
4. Down: Variable
5. Across: Positive
6. Down: Expression
7. Down: Difference
8. Across: absolute value
9. Across: Additive inverse
10. Down: inverse
11. Across: Place value
12. Down: equation
13. Across: sum
14. Down: Algebra
15. Across: Equivalent
16. Across: Product
17. Across: Quotient
Step-by-step explanation:
Down
1. To find a solution or value
Solve
2. Any number that can be written as a fraction
Rational number
3. A value less than zero
Negative
4. A symbol for a value unknown
Variable
6. Numbers/symbols and operation that represent a value (no equal sign)
Expression
7. The result obtained by subtracting values
Difference
10. Opposite of another operation
inverse
12. Mathematical statement in which two expressions are set equal to each other
equation
14. The part of mathematics that uses letters/symbols
Algebra
Across
5. A value greater than zero
Positive
8. The distance away from zero
absolute value
9. Adding the inverse (opposite) number results in zero
Additive inverse
11. The value represented by a digit in a number on the basis of its position in the number
Place value
13. The result obtained by adding values
sum
15. Equal or same
Equivalent
16. A results obtained by multiplying two or more quantities
Product
17. A result obtained by dividing one quantity by another
Quotient
This is to everyone.
I know everyone out here has some physical or mental stuff, (including grades)
Just know that you deserve the world.
I encourage you all to respond to questions throughout this brainly app/website appropriately. please put effort into your responses.
ok, by now I probably sound like I'm trying to be your parent, sorry.
It happened to me and it makes me (and others) sad, and I'm speaking for all the people out there with people responding to their posts with nonsense.
to those out there who are kind and respectful out there with your responses, thank you so much for your help and support.
If anyone out here has "thoughts" about themselves, you don't deserve those "thoughts" you say to yourself.
Happy birthday to anyone out there with a birthday either coming up, already occurred, or happening today!
Happy early Xmas to everyone!
Happy early Hanukkah to everyone!
Happy early kwanza to everyone!
(below is the question to answer)
moving away from everything I've said, how is everyone doing?
has anyone told you that they were proud of you? if not, well now someone has!
Challenge of the day:
make someone happy today!
What does the point (0,0) represent? Select all that apply.
SOMEONE PLEASE HELP ME!
Carrie is creating a painting for art class. The width of the canvas is 5 inches greater than the height of the canvas. Write a simplified equation in terms of h (the height) for the perimeter, p, of the canvas. (Please show works!)
Answer:
5h
Step-by-step explanation:
there are no out numbers so it would just be 5h
What is the perimeter of a rectangle with a length of Eight and one-sixth feet and a width of Six and two-thirds feet?
Fourteen and three-ninths feet
Sixteen and two-sixths feet
Twenty-nine and four-sixths feet
Forty-eight and three-eighteenths feet
Answer: I got 54 and 4/9 so...
Step-by-step explanation:
Answer: twenty nine and two sixth or twenty nine and two thirds
29[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
[tex]8\frac{1}{6}+6\frac{2}{3}= 14\frac{5}{6}[/tex] then you ad that which is [tex]14\frac{5}{6}+ 14\frac{5}{6}= 29\frac{4}{6}[/tex]
or simplified is 29[tex]\frac{2}{3}[/tex]
Here are the questions about this problem.
The bus traveled a total of __
_____miles.
The bus made ____
___ stops during the route
The total time the bus traveled was _
_____ hours
i'd really appreciate the help
find an equivalent expression without parentheses (-2a^2+3a+1)(3a-2)
Answer:
-(2 a^2 - 3 a - 1) (3 a - 2)
-6 a^3 + 13 a^2 - 3 a - 2
a ((13 - 6 a) a - 3) - 2
Step-by-step explanation: hope this helps.
Maya's school held an aluminum collection program in which they collected aluminum and brought it to be recycled. In the first week, Maya collected 4/20 ib of aluminum and her friend Abigail collected 7/8 ib
1. Which girl Collected more aluminum?
2. How much aluminum did the two girls collect?
Create an equivalent expression for 1.6 cubed over 1.7 raised to the fourth power all raised to the power of negative seven. 1.6 raised to the fourth power over 1.7 cubed 1.7 raised to the twenty eighth power over 1.6 raised to the twenty first power 1.7 cubed over 1.6 raised to the fourth power 1.6 raised to the twenty first power over 1.7 raised to the twenty eighth power
Answer:
1.7 raised to the twenty eighth power over 1.6 raised to the twenty first power
Step-by-step explanation:
Let's translate the wording to math form:
Worded question is:
1.6 cubed over 1.7 raised to the fourth power all raised to the power of negative seven
Break it down into parts to make it easier to understand
Simplify the above term. When a term with an exponent is raised to another exponent, then the resulting exponent is the product of the two exponents
[tex]\implies \left(\dfrac{1.6^{3}}{1.7^{4}}\right)^{-7} = \left(\dfrac{1.6^{-7 \cdot 3}}{1.7^{-7 \cdot 4 }}\right) = \dfrac{(1.6)^{-21}}{(1.7)^{-28}}[/tex]
For negative exponents we have the rule
[tex]x^{-a} = \dfrac{1}{x^a}[/tex]
So, in this case since both numerator and denominator have negative terms , we simply switch them to get
[tex]\dfrac{(1.7)^{28}}{(1.6)^{21}}\\\\[/tex]
In words we can express this mathematical form as:
1.7 raised to the twenty eighth power over 1.6 raised to the twenty first power
Which is the answer.
Choices are not labeled and formatting is lost in your question so I cannot tell you which choice it is
Under standard atmospheric conditions, water will not remain a liquid if its temperature is less than or equal to 0°C or if it is greater than or equal to 100°C. Suppose you have a cup of water that is room temperature, or 20°C.
a. Write a compound inequality to represent the number of degrees of Celsius c that the temperature of the cup must change to longer be liquid.
Answer: +80°C or -20°C
Step-by-step explanation:
This is the answer because if you add 80 then it will equal 100°C and freeze and if 20°C is taken away it will equal 0°C and freeze.
What is this function's rate of change? y = 2x + 1
Step-by-step explanation:
the rate of change or slope is the factor of x, when we have the function in the form y = ...
so, it is 2.
that means y changes by 2 whenever x changes by 1.
1,000 g (grams) = _____ kg
Answer: 1,000 g (grams) = 1 kg
Answer:
1 kg
Step-by-step explanation:
kg stands for kilograms
Kilo means thousands
kilogram means thousand grams
1000g = 1kg
Hope this helped and have a good day
P|z help. I have no idea how to do this.
Factor the expression completely by finding the greatest common factors.
13b - 10b
Answer:3b
Step-by-step explanation:
Subtract 10b from 13b
I hope this helps!
The graph shows the cost of producing gadgets. which equation best represents the cost C of producing n gadgets?
Answer:
[tex]C = 0.10n[/tex]
Step-by-step explanation:
If you study the graph you will see that there is no cost for producing zero gadgets. Cost = $0
For 100 gadgets the cost is $10
For 200 gadgets the cost is $20
etc
So the cost in $ is 1/10 times the number of gadgets
For 1 gadget, it costs [tex]\$\dfrac{1}{10}[/tex] or $0.10
For n gadgets it should cost $[tex]0.1n[/tex] same as [tex]\$\dfrac{n}{10}[/tex]
Mathematically speaking the graph represents the equation of a straight line which is of the form
y = mx + b
where y represents the vertical axis and x the horizontal axis
The variable m represents the slope of the line which is the increase of y for every unit increase in x.
The slope, m can be determined by using the formula [tex]\displaystyle \dfrac{y2-y1}{x2-x1}[/tex] where x1, y1 and x2, y2 are two points on the graph
This is also called rise/run
b is called the y-intercept and it represents the value of y where the line crosses the vertical axis
The difference here is that instead of y, we are using C as the variable for the vertical(y) axis and n as the variable for the horizontal(x) axis
So we get the modified equation as
C = m·n + b
We can see that when n = 0, C = 0 so b = 0 because the vertical intercept is zero
To calculate m, take any two points on the line
I choose (0, 0) and (100,10)
[tex]\rm Slope \;m = \dfrac{10-0}{100-0} = \dfrac{10}{100} = \dfrac{1}{10} = 0.10\\\\[/tex]
This means that for every gadget produced the cost will increase by $0.10
The equation becomes C = 0.10n + b and since b is 0 we get
[tex]C = 0.10n[/tex]
A merchant marks-up the merchandise 20% . What will be the percent expression used to determine the price of each item to be sold?
Answer:
The percent expression used to determine the price of each item to be sold is 1.2 x original price.
Step-by-step explanation:
Answer:
The percent expression used to determine the price of each item to be sold is 1.2 x original price.
Step-by-step explanation:
Question is Image included
Answer:
Step-by-step explanation:
a is correct
Help. I'll mark as brainlist.
Answer:
∠TUS and ∠SUT
Step-by-step explanation:
the marked angle can be read as:
∠TUS and ∠SUT
they are the same as they are just the flipped order of saying the same thing
(35 PONITS!) Consider the function g (x)=2+1 and h(x) =2x +2 for the domain 0
a. Without evaluating or graphing the functions, how do the ranges compare?
b. Graph the two functions and describe each range over the given interval.
(PLEASE AT LEAST GIVE ME ANSWER ONE!)
Answer:
b.
Slope: 2
y-intercept: (0, 2)
Step-by-step explanation:
Graph the line using the slope and y-intercept, or two points.
Can someone help, please
Answer:
[tex]\frac{1}{4}[/tex]
Step-by-step explanation:
The slope is the change in y over the change in x.
We find the change by subtracting.
From the points given the y's are 9 and 10 and the x's are 2 and 6
[tex]\frac{9-10}{2-6}[/tex] = [tex]\frac{-1}{-4}[/tex] = [tex]\frac{1}{4}[/tex]
Mrs maggio needs 48 hot dogs harris teeter sells a 6 pack of hot dogs for 5.10$ and 8 pack for 6.88$ sould mrs maggio buy 8 six packs or 6,8 packs
Answer:
Eight 6-packs
Step-by-step explanation:
6-pack of hot dogs for 5.10$
8-pack of hot dogs for 6.88$
To figure out the answer, we compare the prices:
The price of six 8-packs is $41.28 ($6.88 x 6)
The price of eight 6-packs is $40.80 ($5.10 x 8)
As we can see, the cheaper option would be to buy eight 6-packs, which is our answer.
Can someone help, please
Slope-intercept form is: y = mx + b
where m is the slope and b is the y-intercept.
Since you're told the slope is 1/8 and the y-intercept is -7, you just plug those into the form:
y = 1/8 x - 7
Note that the "–" in front of the 7 is already part of the answer on paper, so you don't need to add a second one.
Write an exponential decay function to model each situation. Compare the average rates of change over the given intervals.
21. Initial value: 50
Decay factor: 0.9
1 ≤ x ≤ 4 and
5 ≤ x ≤ 8
The model of the exponential functions is written as
21:
f(x) = 50(0.9)ˣ
average rate of change
1 ≤ x ≤ 4 is -45 ≤ x ≤ 8 is -2.722:
f(x) = 25(0.8)ˣ
average rate of change
2 ≤ x ≤ 4 is -2.96 ≤ x ≤ 8 is -1.2How to write the exponential function to model the dataConsidering the given problem, f(x) = a(b)^x
the initial value = a
the base = b
the exponents = x
21.
Initial value: 50
Decay factor: 0.9
1 ≤ x ≤ 4 and
5 ≤ x ≤ 8
x = 1
f(x) = 50(0.9)^1
f(x) = 45
x = 4
f(x) = 50(0.9)^1
f(x) = 32.805
average rate of change for x = 1 and x = 4
average rate of change = (32.805 - 45) / (4 - 1)
average rate of change = -4.065
average rate of change for x = 5 and x = 8
average rate of change = (50(0.9)^5 - 50(0.9)^8) / (5 - 8)
average rate of change = 8.0011 / -3
average rate of change = -2.667
22.
Initial value: 25
Decay factor: 0.8
2 ≤ x ≤ 4 and
6 ≤ x ≤ 8
f(x) = 25(0.8)^x
average rate of change for x = 2 and x = 4
average rate of change = (25(0.8)^2 - 25(0.8)^4) / (2 - 4)
average rate of change = 5.76 / -2
average rate of change = -2.88
average rate of change for x = 6 and x = 8
average rate of change = (25(0.8)^6 - 25(0.8)^8) / (6 - 8)
average rate of change = 2.3593 / -2
average rate of change = -1.1797
Learn more about exponential function here:
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