MATHEMATICS HIGH SCHOOL

Solve for r:
zrw = f

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

zrw = f

r = f/zw

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Answers

what are you looking for?

The diameter of the Sun is approximately 1,400,000 kilometers, while the diameter of Saturn is approximately 1.2 x 105kilometers. How many kilometers larger is the diameter of the Sun than the diameter of Saturn?a) 1.28 times 10 to the sixth power
b) 1.52 times 10 to the sixth power
c) 1.28 times 10 to the seventh power
d) 1.58 times 10 to the seventh power
(Times means multiply since I have no multiplication sign on my computer)

Answers

Answer:

R = diameter of Sun / diameter of Saturn    

R =  1.4E6 / 1.2E5 = 11.6 ratio of diameters

or

diameter (Sun - Saturn) = 10^6 ( 1.4 - .12) = 1.28 * 10^6

Apparently looking for answer (a)

What's 4/5×5/8 please I really need help with this one

Answers

(4)/(5) × (5)/(8)

First, apply this rule: (a)/(b) × (c)/(d) = (ac)/(bd) / Your problem should look like: (4x5)/(5x8)
Second, simplify 4 × 5 to 20. / Your problem should look like: (20)/(5x8)
Third, simplify 5 × 8 to 40. / Your problem should look like: (20)/(40)
Fourth, simplify. / Your problem should look like: (1)/(2)

Answer as fraction: (1)/(2)
Answer as decimal: 0.5
(4)/(5) * (5)/(8) = (4:2)/(5:5)* (5:5)/(8:2) \n\n~~~~~~~=2* (1)/(4) \n\n~~~~~~~= (2)/(4)

You have 160 boxes of cookies. In each case you can pack 8 boxes of cookies. How many cases would be filled from these boxes of cookies ?

Answers

160 boxes of cookies / 8 boxes per case = 20 cases that can be filled.
you divide 160 by 8 and you get 20. 20 cases will be filled

The spoke of a wheel reaches from the center of the wheel to its rim. If the circumference of the rim of the wheel is 42 inches, how long is each spoke? Round your answer to the nearest hundredth. A. 6.69 inches
B. 6.25 inches
C. 7 inches
D. 13.38 inches

Answers

The circumference of the wheel can be expressed by:

circumference = 2 \pi r
Where r = the radius of the wheel.

Since the spoke reaches from the center of the wheel to its rim then r = length of the spoke

By rearranging the circumference equation we get:

r = (circumference)/(2 \pi )

If circumference = 42 inches then:

r = (42)/(2 \pi )

r = 6.68
Which is closest to B

Your book may have a typo in it as the answer to 4 decimal places is 6.6845 which rounds down to 6.68, not up to 6.69.

How do you solve 10(3^x) = 810 ?

Answers

3^x = 810/10
3^x = 81
Since 81 has a perfect fourth power of 3, which is 3*3*3*3 = 3^4 = 81
3^x = 3^4
You can easily remove the similar bases (which is 3) and bring down the exponent.
x = 4
- - To Start, Divide both sides by 10

(10(3^x))/(10) = (810)/(10)

- - Solve For The Exponent:

3^(x) =81

- - Now use log to solve:

log(3x)=log(81)

x*(log(3))=log(81)

x= (log(81))/(log(3))

x=4

~Hope this helps 
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