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NARA [144]
2 years ago
6

suppose you make $12 an hour as a lifeguard at the community pool during the summer let h represent the number of hours you work

a week. write an expression that represents the amount of money you earn in a week and evaluate it for h=15
Mathematics
2 answers:
MaRussiya [10]2 years ago
4 0

Answer with Step-by-step explanation:

Suppose we make $12 an hour as a lifeguard at the community pool.

Let h represent the number of hours you work a week.

Amount of money we earn in 1 hour=$12

Amount of money we earn in h hours=$12h

Hence, expression that represents the amount of money you earn in a week is:

12h

Now, let h=15

Then, amount of money we earn in a week working for 15 hours=12×15

                                                                                                          =$180

Hence, amount of money we earn in a week when h=15 is:

$180

skad [1K]2 years ago
3 0
12•h
12x15
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C

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4 0
2 years ago
3² • 9³ = [ ]<br>solve ​
RideAnS [48]

Answer:

3⁸ or 6561

Step-by-step explanation:

First, let's look at PEMDAS - Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.

There are no parentheses, so let's solve the exponents.

3² • 9³

3² = 9

9³ = 729

Your expression is:

9 • 729

Now let's multiply.

= 6561

This number can also be expressed with exponents.

Since 9 = 3², 9³ = 3²⁽³⁾

Now your expression is:

3² • 3²⁽³⁾

First, solve the exponents by multiplying.

3² • 3⁶

When you multiply two expressions with exponents that have the same base (3), you add the exponents.

3² • 3⁶ = 3⁽²⁺⁶⁾ = 3⁸

3⁸ also equals  6561.

Your answer is 3⁸ or 6561.

Hope this helps!

4 0
2 years ago
The spinner above is used in a game. What is the theoretical probability of the given event with one spin? P (5)
Sloan [31]

Answer:

1 /8

Step-by-step explanation:

Given that :

Number of sections on spinner = (1,2,3,4,5,6,7,8) = 8

Number of 5's = 1

Recall :

Probability of event A = number required outcome / Total possible outcomes

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5 0
2 years ago
What is 3/4b&gt;15 solution
Orlov [11]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Paul went on a bike ride of 30 miles. He realized that if he had gone 8 mph faster, he would have arrived 12 hours sooner. How f
lara [203]

Answer: He actually rode 2 miles per hour on his trip

Step-by-step explanation: Maybe unconventional, but express the time it took, then figure the speed.

Time  = distance /speed  t will represent time, s is the speed:  t = 30/s Use the rime it would have taken at the higher speed to create an equation:

t-12 = 30/s+8   replace the y with the 30/s

30/s -12 = 30/s+8

(s)(30/s -12 ) = (s)(30/s+8 )  Cross multiply to cancel denominators  

(s-8)(30 -12s) = (s-8)(30s/s+8 ) ==> 30s +240 -12s² -96s =30s   Simplify:  

(-1)(-12s² -96s +240 ) =0 ==>  12s² +96s -240  divide all by 12

s² + 8s -20 = 0   Factor and solve for s

(s +10)(s -2) =0    s-2=0   S= 2  

Proof:

30/2 = 15 hours for original trip at 2mph,  

increase speed by 8mph   2 + 8 = 10mph

30 miles at 10mph takes 3 hours; that is 12 hours less than his actual trip.

(Brainilest, please :-)

4 0
3 years ago
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