Can someone please explain this to me please? Thank you : )

Mathematics

1 answer:

Ber [7]4 years ago

6 0

Answer:

7/25

Step-by-step explanation:

if 7% are defective and they order 25% of their lightbulbs from Baker that will be your answer.

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three friends earned more than $200 washing cars. they paid there parents $28 for supplies and divided the rest of money equally

makvit [3.9K]

So
x=earned
x>200
they paid their parrents 28 for supplies (this assumes that they paied 28 altogether and not 28 each)
so subtract 28 from pay
new pay=y
y>200-28
y>172
divided it among themselves (3)
172/3=57 and 1/3=57.33
they each earned more that $57.33

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3 years ago

The time t required to do a job varies inversely with the number of people p who work on the job. If it takes 3 hours for 16 peo

Anna71 [15]

Let the hall be A=1. For 3 hours 16 people can decorate the hall. Then P1=A\(t1.number people1) P=1/48. That is for 1 person. You have 24 people to decorate the same hall. Their P2 will be (1/48).24=1/2. t2=A/P2=2 hours

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3 years ago

330-200 using the arrow way

drek231 [11]

330-> -100 = 230, 230-> -100= 130
(I literally just watched a video how to do this, I never had to do it this way when I was in 2nd grade)
[130 final answer]

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3 years ago

Find the inverse of the linear function y=1/2x+3.

Anni [7]

Answer:

2(x-3) = y

Step-by-step explanation:

y = 1/2 x +3

To find the inverse, exchange x and y and then solve for y

Exchange x and y

x = 1/2y +3

Then solve for 3