Answer:
y=-x,A
Step-by-step explanation:
When we input -5 in for x, we get 5
When we input 7 in for x, we get -7
helppppppppppppppppppp
Answer:
where is the whole picture I can't see it
Adam, Barry, and Charles visited a small farmers market last Saturday. Adam purchased 3 dozen eggs, 1 wheel of cheese, and 5 pounds of potatoes. Barry bought 1 dozen eggs and 10 pounds of potatoes, while Charles purchased 2 dozen eggs and 2 pounds of potatoes. If Adam's bill was $38.25, Barry's $36.50 and Charles' $17.20, how much did a dozen eggs, a wheel of cheese and a pound of potatoes cost?
Answer:
A pound of potato costs $3.10
A dozen egg costs $5.5
A wheel of cheese costs $6.25
Step-by-step explanation:
Represent
- a dozen egg with D
- a wheel of cheese with W
- a pound of potato with P
For Adam:
[tex]3D + W + 5P = 38.25[/tex] ---- (1)
For Barry:
[tex]D + 10P = 36.50[/tex] ---- (2)
For Charles:
[tex]2D + 2P = 17.20[/tex] ---- (3)
Make D the subject in (2)
[tex]D = 36.50 - 10P[/tex]
Substitute 36.50 - 10P for D in (3)
[tex]2(36.50 - 10P) + 2P = 17.20[/tex]
[tex]73 - 20P + 2P = 17.20[/tex]
[tex]73 - 18P= 17.20[/tex]
Collect Like Terms
[tex]- 18P= 17.20 - 73[/tex]
[tex]- 18P= -55.8[/tex]
[tex]18P= 55.8[/tex]
Solve for P
[tex]P = 55.8/18[/tex]
[tex]P = 3.1[/tex]
Substitute 3.1 for P in [tex]D = 36.50 - 10P[/tex]
[tex]D=36.50 - 10 * 3.1[/tex]
[tex]D=36.50 - 31[/tex]
[tex]D=5.5[/tex]
Substitute 3.1 for P and 5.5 for D in [tex]3D + W + 5P = 38.25[/tex]
[tex]3(5.5) + W + 5(3.1) = 38.25[/tex]
[tex]16.5 + W + 15.5 = 38.25[/tex]
Solve for W
[tex]W = 38.25 - 16.5 - 15.5[/tex]
[tex]W = 6.25[/tex]
Which is a solution of the inequality 7 4-3x -4 ?
What is the equation of this line in slope-intercept form?
y = 3x + 1
y = -3x - 1
y = -1/3x - 1
y = 3x - 1
Answer:
y = -3x - 1
Step-by-step explanation:
-1 is the slope intercept, as you can see where the line goes through the y-axis.
The line is also negative, as it's going down, and the slope is three down (negative) and one over. Since slope is written as y over x (y/x), 3 is y. One, the x, doesn't need to be written because 3 is already a whole number.
Niamh spend ¼ of her pocket money and had €10.50 left.How much pocket money did she have at first.
Answer:
10.25$
Step-by-step explanation:
Answer:
14 euro Im pretty sure I'm no expert tho
List the next 4 multiples of 8
Answer:
So like 8, 16, 24, 32, 40, 48...
Step-by-step explanation:
c = 4.95+1.25 with C = total shipping cost and n = number of calculators in a box
Please help... it’s about Pythagorean theorem! I attached the image of the question
Answer:
127.28 ft
Step-by-step explanation:
Using the Pythagorean Theorem we have the following:
90^2 + 90^2 = (distance)^2
8,100 + 8,100 = (distance)^2
16,200 = (distance)^2
(distance) = (sq root sign)16, 200 = (sq root sign)25 ∗ 648 = 5 (sq root sign)36 ∗ 18
(distance)^2 = 5 ∗ 6 (sq root sign)18 = 30 (sq root sign)9 ∗ 2 = 3 ∗ 30 (sq root sign)2
(distance)^2 = 90 (sq root sign)2 = 127.28 feet
i didnt know what to do for the square root sign lol but thats straight from my paper
Choose a scenario that could be represented by 2/5
Answer:
Step-by-step explanation:
you could spilt a pie into 5 pieces and give someone 2. then you gave them 2/5 of a pie.
Find two numbers that multiply to be 20 and add up to be -12.
Answer:
4 and -5
Step-by-step explanation:
Minus times minus equals positive, therefore, the two numbers that will give 20 when multiplied, -12 when added up are: -10 and -2.
What is Minus times MInus?As a law of operation in mathematics, when two negative numbers are multiplied, the result will always be positive. - × - = +.
Thus, we would have:
-10 × -2 = 20
-10 + (-2) = -12
Therefore, two numbers that will give 20 when multiplied, and would also add up to give -12 are: -10 and -2.
Learn more about minus times minus on:
https://brainly.com/question/15479187
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At the Gwinnett county fair, each person pays $8.99 for admission (in order to get in) plus $2.50 for each ride. While at the fair, Elian goes on six rides. Which expresion could be used to find the total amount Elian spends?
Answer:
The expression is
[tex]y=8.99+2.5x[/tex]
Step-by-step explanation:
Step one:
given data
cost per person for entry/admission= $8.99
cost per ride= $2.5
we are told that Elian went on six rides
Step two:
let the number of rides be x
the linear function for the total cost at the Gwinnett county fair for each person is
[tex]y=8.99+2.5x[/tex]
for x=6
y=8.99+2.5(6)
y=8.99+15
y=23.99
The total amount Elian spends is $23.99
Write a quadratic equation in standard form with 1 over 2
and 3 as its roots
Answer:
f(x) = 2x² - 7x + 3
Step-by-step explanation:
Given the roots are x = [tex]\frac{1}{2}[/tex] and x = 3, then the corresponding factors are
(x - [tex]\frac{1}{2}[/tex] ) and (x - 3), that is
(2x - 1) and (x - 3)
The equation is then the product of the roots, that is
f(x) = (2x - 1)(x - 3) ← expand factors using FOIL
f(x) = 2x² - 7x + 3 ← in standard form
If Trevor used 9 tablespoons of oil, how many tablespoons of vinegar did he use?Complete the ratio table.
9:3
Step-by-step explanation: if it is 3:1 then it would be equivalent to 9:3
What is the value of the expression below 2,816 x 7
Answer:
c. 19,712
Step-by-step explanation:
2,816 * 7 = 19,712
What is the answer to number 6?
Answer:
can u type it so i can answer, i cant see it
Step-by-step explanation:
Which of the following two dimensional shapes can be rotated to create a cylinder?
Triangle, square, circle, elipse
Answer:
square
Step-by-step explanation:
i took the test and got it correct
a triangle will create a cone
a circle will create a sphere
and an elipse just doesnt work
Answer:
Square
Step-by-step explanation:
how i do inequalities
Answer:
Following the steps given below you can solve any inequality.
Step-by-step explanation:
I will give an example and explain you step by step of solving an inequality.
Consider an inequality: [tex]2x+4 > 8[/tex]
In this inequality we need to find the value of x.
Step 1: Write the inequality
[tex]2x+4 > 8[/tex]
Step 2: Subtract 4 on both sides of inequality
[tex]2x-4 > 8-4\\2x>4[/tex]
Step 3: Now, you have divide both sides by 2 to get value of 4
[tex]\frac{2x}{2}>\frac{4}{2}\\x>2[/tex]
So, solving the inequality we find value of x: [tex]x>2[/tex]
Following these steps you can solve any inequality.
I hope it will help you.
Raffle tickets were sold for a school fundraiser to parents, teachers, and students. 563 tickets were sold to teachers. 888 more tickets were sold to students than to teachers. 904 tickets were sold to parents
Given :
Raffle tickets were sold for a school fundraiser to parents, teachers, and students. 563 tickets were sold to teachers. 888 more tickets were sold to students than to teachers. 904 tickets were sold to parents.
To Find :
How many tickets were sold to students.
Solution :
Ticket sold to teachers, T = 563 .
Ticket sold to parents, P = 904 .
Let, ticket sold to students are S.
Now, it is given that :
S = T + 904
S = 563 + 904
S = 1467 students
Therefore, tickets sold to students are 1467 .
Hence, this is the required solution.
Edgar has a pen pal who uses the metric system. The pen pal wrote that his dog weighs 20 kilograms. If 1 kilogram is equivalent to 2.2 pounds, about how many pounds does the dog weigh?Required to answer. Single choice.
Answer:
44 pounds
Step-by-step explanation:
We are told that;
1kg = 2.2 pounds.
Now, the pen pal wrote that his dog weighs 20 kilograms.
Thus, the dog's weight in pounds will be gotten by proportion as;
Weight = (20 kg × 2.2 pounds)/1 kg
Weight = 44 pounds
Therefore, the dog weighs 44 pounds
Is 45 a multiple of 4? Explain your answer Lmk ASAP
Answer:
The multiples of 4 are: 4,8,12,16,20,24,28,32,36,40,44
The multiples of 5 are: 5,10,15,20,25,30,35,40,45,50
So, no
h + 7.1 = −7.1
h = ?
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I don’t know how to use parallel lines to prove things...
Answer:
omg wow
Step-by-step explanation:
3 x 5 to the power of 2 is it 75?
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
If u mean :
[tex]3 \times {5}^{2} = [/tex]
[tex]3 \times 25 = 75[/tex]
_________________________________
If u mean :
[tex]( {3 \times 5})^{2} = [/tex]
[tex] {15}^{2} = 225[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
At this point I’m just gonna post all the questions so stay online. y’all are so smart. 2 more to go! Xoxo <3
Answer:172.5
Step-by-step explanation:Xoxo
Write the equation of the line {point-slope form} that
passes through the given points.
(-2, -3) and (2, 5)
what is the area of a circle with a radius of 8in
Answer:
200.96in squared
Step-by-step explanation:
are of a circle is pieR^2. Pie is 3.14, so 3.14 x 8^2 which is 200.96 Hope this helps plz mark brainliest
Answer:
64 π. Hope that helps! Plz rate and mark as brainlest! :)
Step-by-step explanation:
Formula: π r² (pie times radius squared)
π x 8² = 64 π
PLEASE HELP
Jason left for school and forgot his math homework on the kitchen table. His mother found the homework 10 minutes after Jason left, and started driving 36 mph to catch him. Jason bikes 12 mph.
If Jason school is 2.5 miles from his apartment, how fast must his mother drive to catch him at the school door.
Answer:
5 minutes
Step-by-step explanation:
hope it helps
What is the solution set of the inequality
- 4x + 34 >2
Answer:
8
Step-by-step explanation:
-4x+34>2
4x>34-2
4x>32
divide both sides by 4
x>8
The movie is 95 minutes long , she has streamed 60% of the movie so far. How many minutes of the movie has she streamed?
Answer:
57 minutes
Step-by-step explanation:
Answer:
She has streamed 57 minutes
Step-by-step explanation:
60% of 95 is 57
~theLocoCoco
Explain the pattern you can use to find the product when multiplying a whole number by a power of ten. Will this pattern be the same when multiplying a decimal by a power of ten? Explain with examples.
Answer:
The pattern is the same when multiplying a whole number and a decimal number by a power of ten.
Step-by-step explanation:
The pattern to use when multiplying a whole number by a power of ten can be expressed as follow:
A whole number is a number without a fraction, so let say we choose 12 as a whole number, and let choose 6¹⁰ as a number with the power of ten.
To multiply these two numbers, we get;
= 12 × 6¹⁰
= 12 × 60466176
= 725594112
Now, the pattern to use when multiplying a decimal by a power of ten.
A decimal number is a number that comprises of a whole number and a fraction number that is being by a decimal point.
Let say our decimal number is 1.2 and our number raised to the power of ten is 6¹⁰
Then, To multiply these two numbers, we get;
= 1.2 × 6¹⁰
= 1.2 × 60466176
= 72559411.2
Thus, the pattern is the same when multiplying a whole number and a decimal number by a power of ten.