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zimovet [89]
2 years ago
5

The mean radius of earth is 6,371.0 kilometers and the mean radius of earths moon is 1,737.5 kilometers. What is the approximate

difference in the mean conferences, in kilometers, of earth and earths moon? Round your answer to the nearest tenth of a kilometer.
Mathematics
1 answer:
Dominik [7]2 years ago
4 0
6,371.0- 1,737.5 = <span>4,633.5 kilometres.
the approximate difference is 4,633.5 kilometres</span>
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Luis made 80% of what he made last week.If he made 72$ this week,how much did he make last week
IceJOKER [234]

Let

x--------> the amount in dollars that Luis make last week

we know that

80\% =\frac{80}{100}=0.80

0.80x=72\$ ------> equation that represent the situation

solve for x

Divide by 0.80 both sides

0.80x/0.80=72\$/0.80

x=72\$/0.80

x=90\$

therefore

<u>the answer is</u>

90\$

4 0
2 years ago
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By coincidence, Kimberly’s Paint Supplies sold equal quantities of two paint colors yesterday: yellow and blue. All yellow paint
Damm [24]

Answer:

36 liters

Step-by-step explanation:

Yellow paint = 9 liters containers

Blue paint = 12 liters containers

Kimberly’s Paint Supplies sold equal quantities of two paint colors yesterday

What is the smallest amount of each paint color the store must have sold?

Find the Lowest common multiple of 9 liters and 12 liters

9 liters = 18, 27, 36, 45, 54, 63, 72, 81, 90, 99

12 liters = 24, 36, 48, 60, 72, 84, 96, 108

The Lowest common multiple of 9 liters and 12 liters is 36 liters

Therefore, the smallest amount of each paint color the store must have sold to have equal quantities of two paint colors yesterday is 36 liters

7 0
2 years ago
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The random variable X, representing the number of cherries in a cherry puff, has the following probability distribution:x: 4 - 5
marta [7]

Answer:

Step-by-step explanation:

Given is the probability distribution of a random variable X

X 4 5 6 7 Total

P 0.2 0.4 0.3 0.1 1

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a) E(X) = Mean of X = sum of xp = 5.3

Var(x) = 28.9-5.3^2=0.81

Std dev = square root of variance = 0.9

------------------------------------

b) For sample mean we have

Mean = 5.3

Variance = var(x)/n = \frac{0.81}{{36} } \\=0.0225

c) P(\bar X

3 0
2 years ago
After selling one third of his apple crop, a farmer sold the remainder at the same price per bushel for $600. What is the value
kolezko [41]
300. if you sold a third. then 2/3 would be left. you can then infer each is 300
3 0
2 years ago
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Carrie spent  1 /4  of her allowance on a shirt,  1 /3  of her allowance on a skirt, and $8 on a belt. If she spent $22 in all,
charle [14.2K]

Hi There!

Answer:

$24

Step-by-step explanation:

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= 3/12 + 4/12

= 7/12

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Subtract 8 to both sides of the equation.

7/12a + 8 - 8 = 22 - 8

Simplify

7/12a = 14

Switch

a = 12/7 * 14

Simplify

a = $24

Hope This Helps :)

6 0
2 years ago
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