3 years ago

HELPP can someone explain how to do this?

Mathematics

1 answer:

arlik [135]3 years ago

8 0

Answer:

oh ok that will be x/6=x/8

Step-by-step explanation:

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Carly and rob combined their dvd collection now they have 42 dvds all together. Carly had 4 more dvds than rob how many dvds did

Wewaii [24]

If Carly had more DVDs than Rob then you would subtract her amount away from the total. 42-4=38

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3 years ago

2/3 b + 5 =20 - b solve for b

Wittaler [7]

Answer:

$b = 9$

Step-by-step explanation:

$\frac{2}{3} b + 5 = 20 - b$

In order to solve for b, we must isolate the variable. We can start by subtracting 5 from both sides.

$\frac{2}{3} b + 5 - 5 = 20 - b - 5$

Simplify.

$\frac{2}{3} b = 15 - b$

Add b to both sides.

$\frac{2}{3} b + b = 15 - b + b$

Simplify.

$\frac{2}{3} b + b = 15$

Multiply everything by 3 to remove the fractions.

$3(\frac{2}{3}b+b) = 3(15)$

Simplify.

2b + 3b = 45

Simplify.

5b = 45

Divide 5 from both sides.

5b ÷ 5 = 45 ÷ 5

Simplify.

b = 9

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What is the width of a rectangle with an area of five eights in the length of 10 inches

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It would be: 1- 5/8 = 3/8

3/8 * 10 = 30/8 = 3.75 inches

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