The expression for the following statements are,
a. c = 200/n.
b. p = 20r.
c. s×t = 240.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
a. From the information given the numerical form of the statement is,
c = 200/n.
b. From the information given the numerical form of the statement is,
p = 20r.
c. From the information given the numerical form of the statement is,
s×t = 240.
learn more about numerical expressions here :
https://brainly.com/question/29199574
#SPJ2
helpppp pleaseee fastttttttttt
Answer: 2 and
Step-by-step explanation: equation 2:
3(3x+4)-5=9x-2
9x+12-5=9x-2
9x+7=9x+-2
Subtract both sides by 9x
7=-2
This Is not true therefore there is no solution
equation 3:
3(3x+4)-5=-3x+4
9x+12-5=-3x+4
9x+7=-3x+4
12x=-3
divide both parts by -3
x=-4
Select all ratios equivalent to 20:4 A. 8:1 B. 10:2 C. 15:3
Answer:
b 10:2 ,, c 15:3
Step-by-step explanation:
20:4 by dividing 4 from both sides you get the ratio
5 :1
so simplify the other ratios and find one that equals this one
A is already in simplest form 8:1
so it's refused
B 10:2 by dividing 2 from both sides you get the ratio 5 :1
C 15:3 by dividing 3 from both sides you get the ratio 5 :1
so both B and C are correct answers
Hope this helped! :)
Mrs. Mendez held a reading contest in
her third-grade class. The students read
160 books. The girls read 84 books.
What percent of the books did the boys
read?
Answer:
47.5 percent is correct
Step-by-step explanation:
Joe must choose a number between 49 and 95 that is a multiple of 3 , 9, and 12 . Write all the numbers that he could choose. If there is more than one number, separate them with commas.
The first number 49 or larger that is divisible by 3 is 51 (17 * 3 = 51) so begin at 51 and count by 3's until you get to 95:51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93The first number 49 or larger that is divisible by 6 is 54 (6 * 9 - 54) so begin at 54 and count by 6's until you get to 95:54, 60, 66, 72, 78, 84, 90The first number 49 or larger that is divisible by 9 is 54 (9 * 6 - 54) so begin at 54 and count by 9's until you get to 95:54, 63, 72, 81, 90Now look for the numbers that are in all three lists
Drag the correct steps into order to solve the equation −4+12=−4 for x
Answer:
Step 1: 4x = -16
Step 2: x = -4
Step-by-step explanation:
Subtracting 12 on both sides, and dividing by 4 will isolate "x" to solve the two-step equations, as we are performing opposite operations to the variable "x".
Thirty out of 40 students passed the algebra test in their math class. what percentage of the students didnt pass the test?
Answer: 25%
Step-by-step explanation: 40-30= 10 10/40= .25
Answer: 90%
Step-by-step explanation:
Please help me ASAP thanks
Which unit rate corresponds to the proportional relationship shown in the graph?
Drag and drop the answer into the box to match the graph with its unit rate.
Rita made 4 bowls of fruit salad. She used 0.4 kilograms of melon in all. How many kilograms of melon, on average, were in each bowl?
Answer:
0.1 kilograms of melon in each bowl.
Step-by-step explanation:
[tex]\frac{0.4}{4}[/tex] = 0.1
Answer:
0.1 kilogram of melon are on each bowl
Step-by-step explanation:
[tex]\frac{4}{0.4} = 0.1[/tex]
Kado spent 1 2/3 hours painting a fence. Then he spent 4/5 of an hour walking his dog. How much longer did he spend painting than walking? Orleans chose C as the correct answer.How did she get that answer?
Answer: B, 13/15
Step-by-step explanation: If you multiply both to 15, you will get 1 10/15 and 12/15 if you then subtract the two of them you will be left with
13/15.
Orleans might have got the answer from subtracting wrong or adding them together.
Hope this helps! :)
Orleans must have chosen C as the correct answer, which is 13/15 hours. This means that Kado spent 13/15 hours longer painting the fence than walking his dog.
To find out how much longer Kado spent painting than walking his dog, we need to calculate the difference between the time he spent painting and the time he spent walking his dog.
Kado spent 1 2/3 hours painting the fence.
He spent 4/5 of an hour walking his dog.
To make the calculation easier, let's convert 1 2/3 hours into an improper fraction:
1 2/3 = (3*1 + 2)/3 = 5/3 hours
Now, the time difference is:
Time spent painting - Time spent walking
= (5/3) - (4/5)
To subtract fractions, we need to find a common denominator, which in this case is 15 (the least common multiple of 3 and 5):
= (5/3)(5/5) - (4/5)(3/3)
= 25/15 - 12/15
Now, we can subtract the fractions:
= (25 - 12)/15
= 13/15 hours
Orleans must have chosen C as the correct answer, which is 13/15 hours. This means that Kado spent 13/15 hours longer painting the fence than walking his dog.
To know more about spend click here :
https://brainly.com/question/31900520
#SPJ2
is this right hurryyyyyyyyyy please
Answer:
its wrong
Step-by-step explanation:
cause first of all i have no i dea second of all it looks to hard for me
Describe the pros and the cons of using the standard form of a line to graph an equation.
Answer:
The standard form of a line is expressed as Ax + By = C, where A, B, and C are constants and x and y represent the variables. One advantage of using the standard form to graph a line is that it is relatively easy to determine the slope and y-intercept of the line from the constants A and B. This can be particularly useful when trying to analyze the behavior of the line.
Another advantage of using the standard form is that it allows you to easily determine the equation of the line when given a set of points. For example, if you are given the points (2,4) and (3,6), you can use the standard form to find the equation of the line that passes through these points by substituting the coordinates into the form and solving for the constants.
One potential disadvantage of using the standard form is that it can be more difficult to interpret the meaning of the constants A, B, and C in terms of the context of the problem. For example, if the line represents the cost of a product, it may be more intuitive to express the equation in terms of the variables x (the number of units) and y (the cost). In this case, it may be more useful to use the slope-intercept form of the equation, which is expressed as y = mx + b, where m is the slope and b is the y-intercept.
Step-by-step explanation:
https://www.math.net/standard-form
Step-by-step explanation:
I honestly think that - ' jphhendell13 ' is correct.
Look at the graph of a function below.
Which set builder notation represents the domain of the function in the graph?
A. {y|−1≤ y ≤ 3}
B. {y|1 ≤ y ≤ 9 }
C. {x|−1 ≤ x ≤ 3}
D. {x|1 ≤ x ≤ 9}
the answer to your question is c
Which point is a solution to the system of linear equations?
y = −x + 4
x − 3y = 12?
A: (0, 3)
B: (1, 2)
C: (6, −2)
D: (4, −4)
ALEKS
(screenshot)
Thanks! : )
Answer:
[tex]\frac{9}{1}[/tex]
Step-by-step explanation:
54÷6=9
--> 9:1
Help..? As soon as possible please tysm :>
Answer:
A. The constant ratio of y/x is 12/5
Step-by-step explanation:
The ratio of y to x is constant which is 12/5. Hence option A is the correct option.
What is a constant?
The term "constant" has several meanings in mathematics. When used as a noun, it can have any of the following two meanings: a constant, clearly defined number or another immutable mathematical object.
Given table is
x y
5/6 2
25/6 10
125/6 50
625/6 250
When x = 5/6 and y = 2:
x/y = (5/6)/2 = 5/12
∴y/x = 5/12
When x = 25/6 and y = 10:
x/y = (25/6)/10 = 25/60 = 5/12
∴y/x = 5/12
When x = 125/6 and y = 50:
x/y = (125/6)/50 = 125/300 = 5/12
∴y/x = 5/12
When x = 625/6 and y = 250:
x/y = (625/6)/250 = 625/1800 = 5/12
∴y/x = 5/12
To learn more about ratio, click on the below link:
https://brainly.com/question/5232821
#SPJ1
proportional or not proportional?
Answer:
Proportional
Step-by-step explanation:
The relationship is proportional because starting at (0,0) there's a constant rate between the number of plants and the number of roses. We can represent this proportional relationship as y=5x where k=5, the constant of proportionality.
Please help ASAP .....
Answer:
(n-2)2 is in the formula (a-b)2 = a2- 2ab + b2
correct it by writing (n-2)2 = (n2 - 2(n)(2) + 2 raise 2)
Answer:
-2 * -2 = 4, but Maryam put -4 instead.
Write two absolute-value expressions for the distance between "-7" and 5 on a number line. The give the distance between the numbers.
Answer:
look below!
Step-by-step explanation:
since the absolute value is just the number in positive form, the absolute value for the numbers are
-7: 7 1:1 So, the distance between the numbers is 12; 7+5=12.
-6: 6 2:2
-5: 5 3:3
-4: 4 4:4
-3: 3 5:5
-2: 2
-1: 1
Can anyone solve this?
1/2 × (23+15 ×11)
1/2 × (38 ×11)
1/2 × (23+15 ×11)
1/2×418
209ft²
Answer:
Option C)
Step-by-step explanation:
[tex]A=\frac{(23-15)(11)}{2} +(15)(11)[/tex]
[tex]A=44+165[/tex]
[tex]A=209ft^{2}[/tex]
Hope this helps
1.) Last week, the price of grapes at the farmer's market was $1.50 per pound.
This week, the price has decreased by 15%. What is the price of grapes this week?
Find the value of x. (6x + 4)(5x + 2)(12x-4)°
Angelina has taken 27 of the 36 exams she needs to take to become a nurse. What percent of the exams has she taken?
Answer:
Step-by-step explanation:
75
Students are making lemonade from a powdered lemon drink mix. Adam mixes 3 cups of water and 4 cups of powdered lemon mix. Grace mixes 2 cups of water and 3 cups of powdered lemon mix. Use Adam and Grace’s percent of powdered lemon mix to determine whose mix will be more lemony.
Answer:
Ariana's percentage of the powdered lemon mix is 85%.
Andres's percentage of the powdered lemon mix is 48%.
Step-by-step explanation:
2n+8n–7n+10n
help please
what is 3/4 times (4,4) also what is 3/4 times (8,4)
Answer:
1. (3,3)
2. (6,3)
Step-by-step explanation:
1. [tex]\frac{3}{4}[/tex] × (4,4)
step 1. divide by the denominator
4 ÷ 4 = 1
step 2. multiply by the numerator
1 × 3 = 3
2. [tex]\frac{3}{4}[/tex] × (8,4)
step 1. divide by the denominator
8 ÷ 4 = 2
step 2. multiply by the numerator
2 × 3 = 6
Hope this helps! ( * ＾▽＾)／
In baseball, each time a player attempts to hit the ball, it is recorded. The ratio of hits compared to total attempts is their batting average. Each player on the team wants to have the highest batting average to help their team the most. For the season so far, Jana has hit the ball 12 times out of 15 attempts. Tasha has hit the ball 9 times out of 10 attempts. Which player has a ratio that means they have a better batting average?
A:Tasha, because she has the lowest ratio since 0.9 > 0.8
B:Tasha, because she has the highest ratio since 27 over 30 is greater than 24 over 30
C:Jana, because she has the lowest ratio since 0.9 > 0.8
D:Jana, because she has the highest ratio since 27 over 30 is greater than 24 over 30
Answer: A) Tasha, because she has the lowest ratio since 0.9 > 0.8
Step-by-step explanation:
If you have 10 friends and make two equal teams, what fraction do you use?
Its not 10/2 guys
Answer:
Step-by-step explanation:
Brand A has a pack of 28 pencils for $4.19. Round to the nearest tenth
Answer:
4.20
Step-by-step explanation:
"1" is in the tenths place, so we look at nine to see if its bigger or smaller than 5, it is so we round up to .20 giving us 4.20
(I also feel this isnt the whole question, but this is the answer for this part anyway.)
PLLLSSS HELP DUE TOMMOROW
9. If the area of a rectangle can be expressed as 36x + 24 square inches, write two
possible options for the expressions of its length and width.
If ito longth can be
Answer:By the formula for the area of a rectangle. Because length = 2 times width. Simplify. So w = -4 or w = +4. Obviously, having a negative width is nonsensical
Step-by-step explanation: