2 years ago

Add. write the doubles fact you used to solve the problem. 4+5=9

Mathematics

1 answer:

boyakko [2]2 years ago

7 0

4+5=9 4+4=8+1=9 I hope this helps! Follow me

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In the diagram below, the perimeter of the triangle is equal to the perimeter of the square. What is the length of a side of the

kondaur [170]

The perimeter of each is the sum of the lengths of its sides.

Triangle Perimeter = 16 + 4x-3 +3x = 7x+13

Square Perimeter = 2x +2x +2x +2x = 8x

If these are equal, you have

$7x+13=8x\\\\13=x\qquad \mbox{subtract 7x}\\\\26=2x\qquad \mbox{multiply by 2}$

The length of a side of the square is 26 units.

3 0

3 years ago

Pls help me

mylen [45]

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3 years ago

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10. On one night, a group of 9 rats carried away 45 kg of food. What is the reduced ratio of rats to food weight

GenaCL600 [577]

Answer:

Number of rats : Food weight = 1 : 5

Step-by-step explanation:

Number of rats in the group = 9

Weight of food carried away by them = 45 kg

Ratio of the number of rats and food weight = $\frac{\text{Number of rats}}{\text{Weight of food carried by the rats}}$

= $\frac{9}{45}$

= $\frac{1\times 9}{5\times 9}$

= $\frac{1}{5}$

Therefore, Number of rats : Food weight = 1 : 5

4 0

2 years ago

Calculate the volume of each pyramid to determine

kipiarov [429]

Answer:

1: 120

2: 138

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Step-by-step explanation:

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3 years ago

Factor this expression completely. 9x (squared) -16

notsponge [240]

Soln,

here

$9 {x}^{2} - 16$

$= ( {3x)}^{2} - {4}^{2}$

$= (3x + 4)(3x - 4)$
I hope this was helpful.

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3 years ago

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