The minute hand of a clock is 6 inches long and moves from 12 to 4 o'clock. How far does the tip of the minute hand move?

Answers

Answer 1

Answer: if it moves from 12 to 4 o'clock then it moves (20/60) which is the fraction of an hour

(20/60) 37.68

simplify (20/60)

(1/3) 37.68

the answer would be 12.56 inches

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A person draws a map showing the amount of silt left by the flooding of the Nile River. What type of social science does this most directly describe? A. Geography
B. Archaeology
C. Economics
D. Political Science

Answers

Answer:

Geography.

Step-by-step explanation:

Geographers use many tools in their work. Maps, globes, photos, satellite images, and models are all tools that geographers might use. Geographers who study ancient Egypt might want to know how the people used the Nile River. For example, the Nile is known to flood. Geographers might study how people dealt with flooding. They might also want to know if or how they used floods to help them.

Not owned by me.

Answer: A. Geography

Step-by-step explanation:

Sylvia earns $7 per hour at her afterschool job. One week she worked several hours and received a paycheck for $91.Solve an equation to find the number of hours in which Sylvia would earn $91?

Answers

7x=91 . divide 7 on both sides making the answer 13 bc 91/7 is 13

Mike works in a toy store. One week, he worked 38 hours and made $220. The next week, he received a raise, so when he worked 30 hours he made $180. How much was his raise (to the nearest cent)?

Answers

Answer:

$0.21

Step-by-step explanation:

Let x be the amount of money earned per hour before raise and y be amount of money earned per hour after raise.

We have been given that before raise he worked 38 hours and earned $220. We can represent this information as: $38x=220$

We are also told that the next week, he received a raise. After raise he worked 30 hours and made $180. We can represent this information as: $30y=180$ .

Let us solve for x and y.

$x=(220)/(38)$

$x=5.7894736842105263$

Therefore, before raise Mike earned $5.7894 per hour.

$y=(180)/(30)$

$y=6$

Therefore, after raise Mike earned $6 per hour.

Now let us subtract 5.7894 from 6 to find Mike's raise.

$\text{Amount of raise}=6-5.7894$

$\text{Amount of raise}=0.2106\approx 0.21$

Therefore, amount of Mike's raise to the nearest cent is $0.21.

What is (2n+2)(6n+1)

Answers

FOIL (distriute)
tells how to multiply which ones
First terms
Inner terms
Outer terms
Last terms

(2n+2)(6n+1)
First (2n times 6n=12n^2)
Inner (2 times 6n=12n)
Outer (2n times 1=2n)
Last (2 times 1=2)

add them
12n^2+12n+2n+2
12n^2+14n+2

Dylan opened a credit card account with $575.00 of available credit. Now that he has made some purchases, Dylan's account only has $322.00 of available credit. What is the percentage decrease of the amount of available credit in Dylan's account?

Answers

Answer:

Around 43-44% is left.

Step-by-step explanation:

43% of 575.00 is 252 which is 575 - 322.

Let me know if there are problems or if i'm wrong.

Suppose h(x)=2x^2+x-7 solve h(x)=8

Answers

X = {-3, 5/2}

You have to subtract 8 from both sides then factor the trinomial into two binomials

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