2 years ago

A scale model of a car is 9 inches long. the scale is 1:18. How many inches long is the car it represents?

1 answer:

8 0

1 inch of the model - 18 inches of the car
9 inches of the model - x inches of the car

$\frac{1}{18}=\frac{9}{x} \\ 
x=9 \times 18 \\
x=162$

The car is 162 inches long.

You might be interested in

a recipe calls for 3 ounces of flour for every 2 ounces of sugar. Find the constant of proportionality.

Ket [755]

3:2

for every 3 ounces of flour, you need 2 ounces of sugar

7 0

2 years ago

A company with $60,000 in sales last year had $69,000 in sales this year. Assuming the company's sales continue to grow at the s

aalyn [17]

Subtract 69000 from 60000. Answer becomes 9000. So you add 9000 to 69000 2 times. Your answer becomes 87000.

5 0

2 years ago

Read 2 more answers

Looking into the sky one night, Tori wondered how far into outer space she would get if she drove a car for 3.21 × 103 hours at

Westkost [7]

Answer:

$\large\boxed{\large\boxed{3\times 10^8meters}}$

Explanation:

One of the applications of scientific notation is to make estimations rounding the whole part of the numbers, i.e. the digits before the decimal point, to the nearest integer, and adding the exponents of the powers of base 10.

Here, you must estimate this product of two numbers written is scientific notation:

$(3.21\times 10^3)(1.13\times 10^5)$