All categories

4 years ago

A car travels at an average speed of 68 miles per hour. How long does it take to travel 323 miles?

Mathematics

2 answers:

Goshia [24]4 years ago

7 0

323*68=5.15

so: 5 hours and 15 minutes

GaryK [48]4 years ago

6 0

4.75 miles divide 323 by 68

You might be interested in

Tanya has several different ways to walk home. One route takes 20 minutes, twould of the routes take 30 minutes, and two take 40

bonufazy [111]

The answer will be 720,000. Hopes This Helps

7 0

4 years ago

Find the value of w in the triangle. x 1359 770

Alborosie

Answer:

Multiply each le and divde from the one on the left

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If a circle has a diameter of 24 inches, which expression gives its area in

nexus9112 [7]

Answer:

D. 12²•π

Step-by-step explanation:

Area of a circle = πr²

Radius (r) = ½ of diameter = ½*24 = 12 inches

Plug in the value into the area

Area = π * (12)²

Area = π * 12²

Area = 12²•π

5 0

3 years ago

Last year, Keiko had $20,000 to invest. She invested some of it in an account that paid %7 simple interest per year, and she inv

erma4kov [3.2K]

Answer:

$P_2 = \$6,000\\P_1 = \$14,000$

Step-by-step explanation:

The formula of simple interest is:

$I = P_0rt$

Where I is the interest earned after t years

r is the interest rate

$P_0$ is the initial amount

We know that the investment was $20,000 in two accounts

_______________________________________________

For the first account r = 0.07 per year.

Then the formula is:

$I_1 = P_1r_1t$

Where

$P_1$ is the initial amount in account 1 at a rate $r_1$ during t = 1 year

$I_1 = P_1(0.07)(1)\\\\I_1 = 0.07P_1$

For the second account r = 0.05 per year.

Then the formula is:

$I_2 = P_2r_2t$

Where

$P_2$ is the initial amount in account 2 at a rate $r_2$ during t = 1 year

Then

$I_2 = P_2(0.05)(1)\\\\I_2 = 0.05P_2$

We know that the final profit was I $1,280.

$I = I_1 + I_2=1,280$

Substituting the values $I_1$ , $I_2$ and I we have:

$1,280 = 0.07P_1 + 0.05P_2$

As the total amount that was invested was $20,000 then

$P_0 = P_1 + P_2 = 20,000$

Then we multiply the second equation by -0.07 and add it to the first equation:

$0.07P_1 + 0.05P_2 = 1.280\\.\ \ \ \ \ \ \ \ +\\-0.07P_1 -0.07P_2 = -1400\\-------------$

$-0.02P_2 = -120\\\\P_2 = 6,000$

Then $P_1 = 14,000$

4 0

3 years ago

Convert 34,121 to Scientific Notation

salantis [7]

Answer:

3.4121 * 10 ^4

Step-by-step explanation:

34,121 is same as

3.4121 * 10 ^4

because the first number has to be between 0 and 10 and if you move the decimal 4 places to the right you got the initial number

5 0

3 years ago