MATHEMATICS MIDDLE SCHOOL

Adrian works in New York City and makes $42 per hour. She works in an office and must get her suit dry cleaned everyday for $75.If she wants to make more than $260 a day, at least how many hours must she work?

Answers

Answer 1
Answer:

Answer:

Adrian must work at least 8 hours in a day to make more than $260

Explanation:

Assume that Adrian needs to work x hours in one day to make at least $260

We know that she makes $42 per hour

This means that:

If she worked x hours in a day, then she'll earn $42x

We are also given that she spends $75 daily on dry clean

This means that:

Amount she makes in a day = amount she earns - $75

Amount she makes in a day = 42x - 75

Now, she wants to make at least $260

This means that:

42x - 75 ≥ 260

42x > 260 + 75

42x > 335

x > 7.9

Therefore:

Adrian must work at least 8 hours in a day to make more than $260

Hope this helps :)

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Of 40% of the selling price of a $65 sweater is profit,then how many dollers profit does the store make when the sweater is sold

Answers

If 40% of the price is profit, then our answer will be 40% of $65.

40% x $65 = 0.4 x $65 = $26

The store profits $26

15 points!!!At a jeans factory, a random quality check found 8 pairs defective and 292 pairs with no problems. How many defective pairs can be expected in the inventory of 3,000 pairs of jeans?
is the answer 80 jeans?
Y/N
if not, here are the other choices:
82 pairs
292 pairs
375 pairs

Answers

8+292=300

8 out of 300 were defective.

(8)/(300)=(x)/(3000) \n \n 8*3000=300*x \n \n 24000=300x \n \n 80=x

80 pairs were defective
Yes, 80 pairs. If you add the 8 pairs back on to 292 it will equal 300. Add a zero to that 300 and the 8, and there's your answer. 80 pairs defective.

Regular pentagon

sides 3.3 cm long

Answers

3.3 x 5 = 16.5 cm
Happy to Help!

Explain how to find which is greater: 1/4 of 12 or 1/3 of 12.

Answers

we have 12 as a common value of both sides; so only check 1/4 and 1/3; 1/4 is smaller than 1/3, obviously (1 part divided into 4 parts vs. 1 part divided into 3 parts); when multiplied, it does not reverse the value 
therefore, 1/4 of 12 < 1/3 of 12 

Answer:

Step-by-step explanation:

Every one i can help you

Help!! Please explain how you go it too please!!

Answers

6+2x=x-6
2x-x=-6-6
x=-12

The anwers is - the last equation, because having solved it, it is the same value :
2x=x-12
2x-x=-12
x=-12

I hope I was of help ;)
6 + 2x = x - 6
2x = x - 6 - 6
2x = x - 12
2x - x = -12
x = -12

SIMPLER WAY
6 + 2x = x - 6
Subtract 6 from both sides;
2x = x - 12
2x - x = -12
x = -12

CHECK

6 + - 24 = -12 - 6
-18 = 18!

Therefore if you see one of my workouts it has 2x - x = 12 so the one at the very right (2x - x = 12) is the answer :)

If Julie needs 3 1/4 cups of oat meal how many 1/4 cups of oatmeal will she use ?

Answers

Basically, you divide 3 1/4 by 1/4. To do that, you have to change the mixed number into an improper fraction. 3 1/4 as an improper fraction is 13/4. I was able to find that since you simply just multiply the denominator by the whole number, 4 x 3, which is 12, then add 12 to the numerator, 1, which is 13. Finally, the improper fraction is 13/4 (the denominator stays the same). Now, we can divide the fractions. One rule about fractions: dividing them is the same as multiplying them with the reciprocal of the other. Like say for example, the reciprocal of 1/5 is 5/1. 

Let's solve:

13/4 divided by 1/4 =
13/4 x 4/1 = At this point, you just multiply them straight across.
52/4 = It's not simplified since both can still be divided. So, you simplify by finding the greatest common multiple of 52 and 4, which is 4. 52 divided by 4 = 13; 4 divided by 4 = 1. 
52/4 = 13/1 = 13 (any numerator with the denominator of one is a whole number when simplified)

So if Julie needs 3 1/4 cups of oatmeal, she will use 13 of 1/4 cups of oatmeal. Answer's 13. :) I really hope I helped!
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