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3 years ago

7

Crystal earns $5.50 per hour mowing lawns. Write a rule to describe how the amount of money m earned is a function of the number

of hours h spent mowing lawns. How much does Crystal earn if she works 3 hours and 45 minutes?

2 answers:

Mamont248 [21]3 years ago

6 0

Answer:

20.63

Step-by-step explanation:

LenKa [72]3 years ago

3 0

Heres a chart that hopfully helps

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rebekah's baby brother weighs 7.71 pounds.How much will her baby brother weigh if he gains 1.3 pounds each week for two weeks?

NemiM [27]

Answer:

10.31 pounds

Step-by-step explanation:

First, we multiply 1.3 x 2 because he is gaining 1.3 for the next TWO weeks.

1.3 x 2 = 2.6

Now, add 7.71 + 2.6 because that is the weight he started with.

7.71 + 2.6 = 10.31‬

Her brother will weight 10.31 pounds if he is 7.71 lbs and continues to gain 1.3 pounds each week for two weeks.

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Sarah is buying a bag of mixed candy from the store. The bag contains 90 pieces of candy

vampirchik [111]

I think answer is 90•13.50=103.5 i am not quite sure about it but..

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3 years ago

Can somebody help me please

frozen [14]

Answer:

lets use X as a number

(x×2)+(x)+(x-40)

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3 years ago

What is f(g(x)) for x > 5?

mel-nik [20]

Answer:

$\large\boxed{B.\ 4x^2-41x+105}$

Step-by-step explanation:

$f(x)=4x-\sqrt{x}\\\\g(x)=(x-5)^2\\\\f(g(x))\to\text{put}\ x=(x-5)^2\ \text{to}\ f(x):\\\\f(g(x))=f\bigg((x-5)^2\bigg)=4(x-5)^2-\sqrt{(x-5)^2}\\\\\text{use}\\(a-b)^2=a^2-2ab+b^2\\\sqrt{x^2}=|x|\\\\f(g(x)=4(x^2-2(x)(5)+5^2)-|x-5|\\\\x>5,\ \text{therefore}\ x-5>0\to|x-5|=x-5\\\\f(g(x))=4(x^2-10x+25)-(x-5)\\\\\text{use the distributive property:}\ a(b+c)=ab+ac\\\\f(g(x))=(4)(x^2)+(4)(-10x)+(4)(25)-x-(-5)\\\\f(g(x))=4x^2-40x+100-x+5\\\\\text{combine like terms}\\\\f(g(x))=4x^2+(-40x-x)+(100+5)\\\\f(g(x))=4x^2-41x+105$

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CAN SOMEONE HELP ME!!!!! WHAT IS 4+4

Volgvan

The answer is eight

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3 years ago

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