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Leni [432]
3 years ago
6

3)

Mathematics
1 answer:
Citrus2011 [14]3 years ago
5 0

Answer:

D)

3* (2 x 8) = 3 * (8 x 2)

Step-by-step explanation:

multiplication distributes over addition.

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Solve the system of equations 7x+10y=36 y=2x+9
Damm [24]

Answer:

x = -2

y = 5

Step-by-step explanation:

Given two equations

1. 7x + 10y = 36

2. y = 2x + 9

Substitute 2x + 9 for y in equation 1.

We have

7x + 10y = 36

7x + 10(2x + 9) = 36

Distribute 10 into (2x + 9)

We have

7x + 10 x 2x + 10 x 9 = 36

7x + 20x + 90 = 36

27x + 90 = 36

Subtract 90 from both sides to eliminate 90 on the left side

27x + 90 - 90 = 36 - 90

27x = -54

Divide both sides by 27 to isolate x

27x/27 = -54/27

x = -2

Now substitute -2 into either equation to get y

Using equation 2, we have

y = 2x + 9

= 2 x -2 + 9

= -4 + 9

= 5

x = -2

y = 5

Check

7(-2) + 10(5) = 36

5 0
3 years ago
-b+10a-5 in standard form
ludmilkaskok [199]

Answer:

10a-b-5

Step-by-step explanation:

-b+10a-5 in standard form

is

10a-b-5

hoped this helped :)

7 0
3 years ago
Write an expression in simplest form for the area of a square with a side of 9ab units
nikitadnepr [17]
(9ab)^2

U R WHALECUM :3
7 0
3 years ago
The box plots show the data distributions for the number of customers who used a coupon each hour during a two-day
algol13

Answer:

The correct answer is A: Interquartile range

Step-by-step explanation:

Just took the test and this was the correct answer

3 0
3 years ago
Kelly spends 3/8 of her free time playing soccer. what percent of her free time was spent playing soccer?
lozanna [386]
I think it's 37.5 . I'm pretty sure cause I think you divide 3/8 . Then you go 2 to the right for your answer with the decimal. Not sure but . I think I'm right.
7 0
3 years ago
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