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3 years ago

Solve 3x - 5 + x = 31. -12 -9 9 12

Mathematics

1 answer:

steposvetlana [31]3 years ago

8 0

Answer: 9

-12 results in -53

-9 results in -41

9 results in 31

12 results in 43

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What is a quarter of $4.32?

Arte-miy333 [17]

1.08 US$ is the answer

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3 years ago

Mike's car broke down 5 miles from the auto shop. If he can push his car 1,056 feet per hour, how many hours will it take him to

Alinara [238K]

Answer:

It'll take 25 hours to get to the auto shop

Step-by-step explanation:

Given

Distance = 5 miles

Speed =1056 feet per hour

Required

How long will it take to the auto shop

This can be solved using Speed's formula;

$Speed = \frac{Distance}{Time}$

Substitute values for Speed and Distance

$\frac{1056 ft}{hr} = \frac{5 miles}{Time}$

1 mile = 5280 feet;

So:

$\frac{1056 ft}{hr} = \frac{5 * 5280 ft}{Time}$

$\frac{1056 ft}{hr} = \frac{26400ft}{Time}$

Cross Multiply

$Time * 1056ft = 26400ft * hr$

Divide both sides by 1056ft

$Time * \frac{1056ft}{1056ft} = \frac{26400ft * hr}{1056ft}$

$Time = \frac{26400ft * hr}{1056ft}$

$Time = 25hr$

<em>Hence, it'll take 25 hours to get to the auto shop</em>

3 0

4 years ago

Write an exponential function to model the situation. Find each amount after the specified time. A population of 120,000 grows 1

Savatey [412]

Exponential growth function is given by f(t) = A(1 + k%)^t; where A is the initial value, k is the growth rate and t is the time period.

Therefore, the required function is
f(t) = 120,000(1 + 0.012)^t = 120,000(1.012)^t

After 15 years, the new population is 120,000(1.012)^15 = 120,000 x 1.1959 = 143,512

8 0

3 years ago

Solve for k : 62=13k-3

cestrela7 [59]