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sweet [91]
2 years ago
15

Two cars leave Peoria at the same time, one heading east at 70 mph and the other west at 50 mph. How long (In hr) will it take t

hem to be 780 miles apart?
Mathematics
1 answer:
Nadusha1986 [10]2 years ago
8 0

Answer:

6.5 hours

Step-by-step explanation:

The required time = x

(70 + 50) * x = 780

120 x = 780

x = 780/120 = 6.5 hours

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We are planning a reception for our daughter. The hall that we are renting charges a $90 cleanup fee. In addition to the cleanup
iris [78.8K]

Answer:

The equation is y = 29x + 90. So, if you plug in 3,100.00 for y.

3,100.00 = 29x + 90

3,100.00 - 90 = 29x

3,010.00 = 29x

3,010.00/29 = 29x/29

x = 103 guests

4 0
3 years ago
3,600<br> The square roots are<br> and
ehidna [41]

Answer:

60

Step-by-step explanation:

60x60=3,600

6 0
3 years ago
The diameter of the moon is about 3500 km. Approximate the surface area of the moon using the formula for the surface area of a
horrorfan [7]

Answer:

3.8465 *10^7 square kilometers

Step-by-step explanation:

The surface area of a sphere can be found using the formula SA=4\pi r^2. Since the diameter is 3500 km then its radius is half of this. 3500 divided in two is 1,750 units. Substitute r=1,750.

SA=4\pi r^2\\SA = 4 \pi (1750)^2\\SA = 4 \pi *3,062,500\\SA =38,465,000

The surface area of the moon is about 38,465,000 square kilometers. Write this is scientific notation using base. 3.8465 *10^7

5 0
3 years ago
Can someone please explain the area of a circle in the simplest way possible, no links
AlekseyPX

So, for the area of a circle, there should be a line in the middle. Correct?

Well, that line is the diameter. Then cut that in half, so if the diameter is 6, the radius is 3.

Then multiply the the radius by the radius, so 3x3 once you get that, multiply the answer by pi. Pi= 3.14, so if you do 3x3x3.14 you should get 28.26. Hope this helps.

3 0
3 years ago
Which is greater 0.15 or 1/8
borishaifa [10]
It is .15 because 1/8 in decimal forma is .125
7 0
3 years ago
Read 2 more answers
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