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3 years ago

The model represents an equation. What value of x makes the equation true?

Mathematics

1 answer:

kirill [66]3 years ago

5 0

Answer:

Step-by-step explanation:

According to the diagram, there are 5 x's in and 8 of negative 1 in the left hand side of the equation. This is represented mathematically as;

= 5x+8(-1)

= 5x - 8 .............. 1

In the right hand side, there are 3 of -x's and 1 in 10 places. This is also expressed as;

= -3x+1(10)

= -3x+10 ............ 2

Equate 1 and 2 and find x

5x-8 = -3x+10

add 7 to both sides

5x-8+8 = -3x+10+8

5x = -3x+18

add 3x from both sides

5x+3x = -3x+18+3x

8x = 18

x = 18/8

x = 9/4

Hence the value of x that makes the equation true is 9/4

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NARA [144]

Answer:

30.48 centimeters (round up to 30.5)

Step-by-step explanation:

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3 years ago

Read 2 more answers

Make p the subject of the relation A is equal to 1/2 ( p + b) h

Amanda [17]

Answer:

2A /h -b =p

If you need it with a common denominator

(2A -bh)/h = p

Step-by-step explanation:

A = 1/2 ( p+b)h

Multiply each side by 2

2A = ( p+b)h

Divide by h

2A/h = ( p+b)h/h

2A/h = ( p+b)

Subtract b

2A/h -b = p+b -b

2A /h -b =p

If you need it with a common denominator

(2A -bh)/h = p

3 0

3 years ago

BRAINLIESTTT ASAP! PLEASE HELP ME :)

Galina-37 [17]

Answer: $\frac{2x}{15}$

This is the fraction 2x/15 which can be read as 2x over 15

=====================================================

Work Shown:

Divide $\frac{14x^2}{15}$ over $7x$ to get

$\frac{14x^2}{15} \div 7x = \frac{14x^2}{15} \div \frac{7x}{1}\\\\\frac{14x^2}{15} \div 7x = \frac{14x^2}{15} \times \frac{1}{7x}\\\\\frac{14x^2}{15} \div 7x = \frac{14x^2*1}{15*7x}\\\\\frac{14x^2}{15} \div 7x = \frac{7x*2x*1}{15*7x}\\\\\frac{14x^2}{15} \div 7x = \frac{2x}{15}\\\\$

You can think of it as dividing 14x^2 over 7x and that results in 2x. Then you place that result (2x) over 15 to end up with 2x/15

4 0

4 years ago

What is -536/4 as a mixed number?

solong [7]

Answer:

-134

We cannot make a "mixed number" because -536-4 can already be divided...

As I like to keep my answers short, I hope you have a wonderful day!

8 0

3 years ago

PLEASE ANSWER FAST!!! Eloise's rabbit cage is shaped like a rectangular prism. The cage has a height of 28 inches and a volume o

lisabon 2012 [21]

The area of the plastic mat on the bottom of the cage is 310 inches²

Step-by-step explanation:

Eloise's rabbit cage is shaped like a rectangular prism

The cage has a height of 28 inches
Its volume is 8,680 cubic inches
Eloise bought a plastic mat for the bottom of the cage, the plastic mat fits the bottom of the cage perfectly

We need to find the area of the plastic mat on the bottom of the cage

The volume of a rectangle prism = area of base × its height

∵ The height of the cage = 28 inches

∵ The volume of the cage = 8,680 inches³

- Substitute them in the rule of the volume above

∴ 8680 = area of base × 28

- Divide both sides by 28

∴ 310 = area of the base

∴ The area of the base of the cage is 310 inches²

∵ The plastic mat fits the bottom of the cage

- That means the area of the plastic mat is equal to the area

of the bottom of the cage

∴ The area of the plastic mat = 310 inches²

The area of the plastic mat on the bottom of the cage is 310 inches²

Learn more:

You can learn more about the volume in brainly.com/question/12497249

#LearnwithBrainly

7 0

3 years ago