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3 years ago

Charlie knows that 3 blocks are needed to make a tower that is 0.5 foot high.

Mathematics

1 answer:

iogann1982 [59]3 years ago

7 0

Answer:

24 blocks will be needed to make the tower that is 4 feet high

Step-by-step explanation:

Let us use the ratio method to solve the question

∵ Charlie knows that 3 blocks are needed to make a tower that is

0.5 foot high

∵ He needs to make a tower that is 4 feet high

→ By using the ratio method

→ Blocks : height (ft)

→ 3 : 0.5

→ x : 4

→ By using the cross multiplication

∵ x × 0.5 = 3 × 4

∴ 0.5x = 12

→ Divide both sides by 0.5 to find x

∵ $\frac{0.5x}{0.5}$ = $\frac{12}{0.5}$

∴ x = 24

∵ x represents the number of blocks

∴ 24 blocks will be needed to make the tower that is 4 feet high

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3 years ago

Read 2 more answers

At 5 feet tall, Emily casts a shadow that is 8 feet long. She is standing near a tree that casts a shadow that is 28 feet long.

Thepotemich [5.8K]

Answer:

The tree is 17.5 ft tall

Step-by-step explanation:

We can use proportions to solve this.

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The nearby tree (unknown height H), will also cast a shadow (28 ft long) with the same inclination as Emily does due to the unique position of the sun relative to them.

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3 years ago

What is this problem simplified

Svetlanka [38]

$\frac{x^2 - 5x-6}{x^2 - 36}$

You can begin to simplify this by factoring both the numerator and denominator:

$\frac{x^2 - 5x-6}{x^2 - 36} = \frac{(x-6)(x+1)}{(x-6)(x+6)}$

Next, cancel out any common factors in both the numerator and denominator:

$\frac{(x-6)(x+1)}{(x-6)(x+6)} = \frac{x+1}{x+6}$

Your answer would be $\frac{x+1}{x+6}$ .

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3 years ago