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3 years ago

15

What factor makes the number sentence true 7 x 4 equals blank x 7

2 answers:

ozzi3 years ago

6 0

The blank would be 4 as 4*7 is the same as 7*4

insens350 [35]3 years ago

6 0

7 x 4=4 x 7

This is known as the commutative property, it basically means when using addition and multiplication the order of the numbers do not matter, because the answer will always turn out the same.

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There are 2820 cars in Farmington. The ratio of medium size cars to compacts is 7 to 5 and the ratio of compacts to full-size ca

oee [108]

Answer:

Number of full size cars = 900

Step-by-step explanation:

The ratio of medium size cars to compacts is 7 to 5 and the ratio of compacts to full-size cars is 8 to 9. Since compact cars are there in both ratios , we need to make the number in the ratio for compact cars to be the same.

$\frac{medium}{compact} = \frac{7}{5}$

Multiply by 8 on numerator and denominator

$\frac{medium}{compact} = \frac{56}{40}$

$\frac{compact}{full size} = \frac{8}{9}$

Multiply numerator and denominator by 5.

$\frac{compact}{full size} = \frac{40}{45}$

Ratio of medium, compact and full size are in ratio 56,40,45.

Total number of cars =2820.

(56 + 40 + 45)x = 2820

x = $\frac{2820}{141}$

x = 20

Number of full size cars = $20\times 45$ =900

3 0

3 years ago

four percent of newspaper readers wrote a letter to the editor last week. if there were 50 letters received by the editor last w

Alina [70]

Answer:

there are 1250 readers

Step-by-step explanation:

r = readers

4 percent of readers sent letter = 50 recieved letters

r * 4 percent = 50

r * .04 =50

divide by .04 on each side

r = 50/.04

r =1250

5 0

3 years ago

Read 2 more answers

Identify the property being illustrated:<br><br> (12 + 5) + 21 = 12 + (5 + 21

ad-work [718]

Associative property

8 0

4 years ago

If you flip a coin and roll a 6-sided die, what is the probability that you will flip a tails and roll more than a 3?

pishuonlain [190]

Prob of tails times prob of rolling more than 3
0.5 × 0.5 = 0.25
25%

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3 years ago

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Estimate. 593÷27<br> please answer fastt

Nat2105 [25]

Answer:

22

Step-by-step explanation:

21.962962963

Estimated: 22

Hope it helps plz give brainliest! :D

4 0

3 years ago