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3 years ago

Simplify the following: 6a + 3 (2a - 7) -9

2 answers:

4 0

-24a-30. This is so because when you distribute you get numbers with like terms which you can then combine into a "simple" answer.

DedPeter [7]3 years ago

3 0

1 Expand

6a+6a−21−9
2 Collect like terms

(6a+6a)+(−21−9)
3 Simplify

12a−30
I hope this helps. :)

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Answer:

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Step-by-step explanation:

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3 years ago

The mean of six numbers is 45. Four of the numbers are 40, 38, 46, and 51. If the remaining two numbers are I. The ratio of 2:3,

Advocard [28]

Answer:

The numbers are 38 and 57

Step-by-step explanation:

Let

x-----> the missing smaller number

y----> the missing larger number

we know that

$45=\frac{40+38+46+51+x+y}{6} \\ \\270=175+x+y$

$x+y= 95$ -----> equation A

$\frac{x}{y}=\frac{2}{3}$

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3 years ago

Which division problem does the model below show? 4 fraction bars. The fraction bars are labeled 1 and each have 6 boxes underne

Ksivusya [100]

Answer:

4 divided by one-sixth = 2

Step-by-step explanation:

Given 4fraction bars

If each fraction bars has 6boxes, then we can get the total boxes for 4fractiom bars as shown;

1 fraction bars = 6boxes

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Cross multiply

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x = 4× 6/1

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Hence the division problem that modelled the expression is 4 ÷ 1/6

4÷1/6 = 4×6/1

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Option A is correct

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