3 years ago

David was thinking of a number. David doubles it and adds 2.9 to get an answer of 13.2. Form an equation with

Mathematics

1 answer:

Ivenika [448]3 years ago

4 0

Answer:

x2+2.9=13.2

Step-by-step explanation:

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3 years ago

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artcher [175]

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3 years ago

Nate and his friends are building a skateboard ramp for an upcoming contest. The length of the ramp on the blueprint is 7.6 inch

ICE Princess25 [194]

Answer:

30.4 feet.

Step-by-step explanation:

We have been given the length of the ramp on the blueprint is 7.6 inches. The scale on the blueprint is 1 inch to 4 feet. We are asked to find the actual length of the ramp.

We will use proportions to solve our given problem as:

$\frac{\text{Actual length}}{\text{Scale length}}=\frac{4\text{ ft}}{1\text{ inch}}$

Now, we will substitute the scale length of ramp in our proportion as:

$\frac{\text{Actual length}}{7.6 \text{ Inches}}=\frac{4\text{ ft}}{1\text{ inch}}$

$\frac{\text{Actual length}}{7.6 \text{ Inches}}\cdot 7.6 \text{ Inches}=\frac{4\text{ ft}}{1\text{ inch}}\cdot 7.6 \text{ Inches}$

$\text{Actual length}=4\text{ ft}\cdot 7.6$

$\text{Actual length}=30.4\text{ ft}$

Therefore, the actual length of the ramp would be 30.4 feet.

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3 years ago

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Murljashka [212]

The y intercept is 0.025.

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3 years ago

The ratio of the length of a rectangular floor to its width is 3:2. If the length of the floor is 12 meters, what is the perimet

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