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pishuonlain [190]
3 years ago
12

939miles * 15gallons / 40miles = x

Mathematics
1 answer:
pantera1 [17]3 years ago
3 0

Answer: 281.7

Step-by-step explanation:

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McGraw hill unit 3 practice problem answers sixth grade lesson 3-1 MATH
Anna007 [38]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which choice represents the simplified exponential expression?<br> (7^4)^6
S_A_V [24]

Answer:

(a^b)^c

=a^bc

so

7^24 is the answer

3 0
3 years ago
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Use the formula to evaluate the series 1+2+4+8+...a10
valina [46]

Answer:

The sum of the given series is 1023

Step-by-step explanation:

Geometric series states that a series in which a constant ratio is obtained by multiplying the previous term.

Sum of the geometric series is given by:

S_n = \frac{a(1-r^n)}{1-r}

where a is the first term and n is the number of term.

Given the series: 1+2+4+8+.................+a_{10}

This is a geometric series with common ratio(r) = 2

We have to find the sum of the series for 10th term.

⇒ n = 10 and a = 1

then;

S_n = \frac{1(1-2^{10})}{1-2} =\frac{1-1024}{-1} =\frac{-1023}{-1}=1023

Therefore, the sum of the given series is 1023



8 0
3 years ago
A mole of 1 gallon cans of paint could cover every square inch of the surface of how many planets the size of the earth?
Nady [450]

Answer:

The answer is 4.4*10^1^0 planets

Step-by-step explanation:

We ll have to find more information first to solve this question.

1. One mole = 6.022 x 10^23

Assuming one gallon of paint covers the 400 sq ft of area.

Thus total area which can be covered by 1 mole of gallon is

=6.022*10^2^3 * 400\\=2.40*10^2^6

2. Now we will find the surface area of earth

Area = 4\pi R^2

The radius of earth is 2.1 x 10^7 Feet

substituting values

Area = 4*3.14*(2.1*10^7)^2\\Area = 5.5*10^1^5ft^2

3. Now we will find out the number of planets of earth size which can be covered by mole of gallon of paint

= Total area one mole of gallon can cover / area of earth

= 2.40 * 10^2^6/5.5*10^1^5\\=4.4*10^1^0 planets

6 0
3 years ago
Find the area of a circle with a radius of 3
Mice21 [21]
The answer is 28.27
8 0
3 years ago
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