3 years ago

2 • (3 • 7) and (2 • 3) • 7 = ?

Mathematics

2 answers:

shusha [124]3 years ago

8 0

Answer:

First one is 42 and the second one is 48.

Step-by-step explanation:

Start with parentheses. I'll use the first one as an example. 3 x 7 is 21. Now that the parentheses are done, multiply it by whatever's left. 21 x 2, that's 42. For the other one, 2 x 3 is 6, x 7, is 48. Have a good day :)

Anton [14]3 years ago

6 0

Answer:

the first one is 42 because you do 3x7 and then multiply it by 2

3 x 7 = 21 21 x 2 =42

Step-by-step explanation:

the second one is 42 as well because 2x3 and multiply that by 7

2 x 3 = 6 6 x 7 = 42

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3 years ago

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Cellular phone service that charges per-minute will charge $70 for 270 minutes. How much would 1260 minutes cost? Round your ans

gulaghasi [49]

$70 = 270 min
x = 1260 min
Where x is the charge of phone service per 1260 min.

Cross multiply:
1260 * 70 = 270 * x
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3 years ago

Plz show work 2(x+5)=26

Zolol [24]

Answer:

x = 8

Step-by-step explanation:

Step 1: Write equation

2(x + 5) = 26

Step 2: Solve for x

Distribute 2: 2x + 10 = 26

Subtract 10 on both sides: 2x = 16