MATHEMATICS MIDDLE SCHOOL

Find the unit rate with the second given unit in the denominator. $67.50 for 9 pizzas

A.$15/pizza

B.7.50pizza/$


C.15pizza/$


WORTH 8 POINTS!!!!


D.$7.50/pizza

Answers

Answer 1
Answer: To find unit rate:
divide the top number by the bottom number

the fraction in this problem is 67.50/9
so you divide 67.50 ÷ 9 = 7.5
since the unit rate we are looking for happens to be money, you have to have 2 digits after the decimal, so add a zero to make 7.5 into $7.50


It is $7.50 per pizza, so the correct answer is D.
:))))))))))))
Answer 2
Answer: It is 7.50. 6750/9 = 750 just right the decimal $7.50

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A fall candle gift set has 4 vanilla candles and 6 pumpkin spice candles. Use v to represent the cost of each vanilla candle and p to represent the cost of each pumpkin candle. Write and simplify an expression that represents the total cost of 4 sets

Answers

4x6=V its very simple actually, you just have to times the 4 by 6

How many times does 50 go into 2,000,000

Answers

This is purely division.
2,000,000 divided by 50
2,000,000 / 50 = 40,000

40,000 times
50 goes into 2,000,000 40,000 times

Find 1+ 2+ 3+ 4+ ... +50, the sum of the first 50 natural numbers.
The sum is

Answers

Step-by-step explanation:

First term(a) = 1

Common difference(d)=2-1=1

No.of term(n)=50

Sn=n÷2(n+1)=50÷2(50+1)=1275

If , find the value of 2 square root of 17-x = 2x-10, find the value of x/4.

Answers

2 √(17-x) =2x-10\ \ \ \ \Rightarrow\ \ \ D:(17-x \geq 0\ \ \ and\ \ \ 2x-10 \geq 0)\n.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x \leq 17\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x \geq 5\n\n.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ D=<5;\ 17>\n\n2 √(17-x) =2(x-5)\ /:2\n\n √(17-x) =x-5\ \ \ \Rightarrow\ \ \ (√(17-x))^2 =(x-5)^2\n\n17-x=x^2-10x+25\n\n

x^2-9x+18=0\n\n x^2-3x-6x+18=0\n\nx(x-3)-6(x-3)=0\n\n(x-3)(x-6)=0\ \ \ \ \Leftrightarrow\ \ \ (x-3=0\ \ \ \ or\ \ \ \ x-6=0)\n\nx=3\ \notin\ D\ \ \ \ \ \ \ \ \ \ \ x=6\ \in\ D\ \ \ \Rightarrow\ \ \ (x)/(4) = (6)/(4) =1.5\n\nAns.\ (x)/(4) =1.5

Simplify the following fraction (9/16/1/4)-1/5

Answers

Answer: (41)/(20)

Step-by-step explanation:

The first step is to make the division of the fractions (9)/(16) and

(1)/(4). To do this, you can flip the fraction (1)/(4) over and multiply the numerators and the denominators of the fractions. Then:

(((9)/(16))/((1)/(4)))-(1)/(5)=((9)/(16)*4)-(1)/(5)=(36)/(16)-(1)/(5)

Reduce the fraction (36)/(16):

 =(9)/(4)-(1)/(5)

Now you can make the subtraction:  in this case the Least Common Denominator (LCD) will be the multiplication of the denominators.   Divide each denominator by the LCD and multiply this quotient by the corresponding numerator and then subtract the products. Therefore you get:

=(45-4)/(20)=(41)/(20)

Which answer describes the simpler problems that could be used to solve this story problem? Emily paid a total of $109.95 for 4 pairs of sandals and a pair of boots. Each pair of sandals cost the same amount. The pair of boots cost $29.99. How much did 1 pair of sandals cost?

A.
Subtract the cost of the boots from the total cost. Divide that answer by 4.

B.
Add the cost of the sandals and the cost of the boots. Divide the sum by 4.

C.
Multiply the total cost by 4. Subtract the cost of the boots.

D.
Divide the total cost by 4. Add the cost of the boots.

Answers

A. Take out the cost of the boots since you know how much they are. Then divide by 4 since the 4 sandals cost the same to figure out how much 1 pair of sandals is. :)
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