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SIZIF [17.4K]
1 year ago
6

Mike's Bikes has mountain bikes that usually sell for $275 on sale for $220. Mike used this ratio to find the percent change. Is

he correct? Explain.
Mathematics
2 answers:
MrRa [10]1 year ago
4 0

No. Mike wrote the ratio as the amount of change to the new amount. He should have used the ratio of the amount of change to the original amount, which is 55

55/275 , or 20%.

zhannawk [14.2K]1 year ago
4 0
20%
220 divided by 275 to get .8 
80% then 80% minus 100%
=20%
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Michael earns $21 per hour and works 40 hours per week. How many overtime hours would he have to worky in a week for his time-an
Alex73 [517]

Answer:

27 hours

Step-by-step explanation:

The regular hours are paid normally, 21/hr hence working for 40 hours, Michael earns 40*21=$840

To work x hours paid overtime as 1.5 of the normal rate, the rate would be $21*1.5=$31.5/hr

X hours multiplied by rate of $31.5/hr should be at least equal to $840

31.5x>=840

X>=840/31.5>=26.6667 hours and when rounded off

X is 27 hours

6 0
2 years ago
A cylinder shaped dispenser holds 5,652 cubic centimeters of liquid soap and is now full. The radius of the dispenser is 7.5 cen
attashe74 [19]
We know that

[volume of cylinder]=pi*r²*h------------> h=[volume of cylinder]/(pi*r²)
Volume=5652 cm³
r=7.5 cm
so
 h=[5652]/(3.14*7.5²)-----------> h=32 cm

<span>the height of the soap in the full dispenser is 32 cm

</span><span>the height when 4,239 cubic centimeters of soap remains in the dispenser is
</span>h=[4239]/(3.14*7.5²)-----------> h=24 cm

hence

<span>the difference is 32-24--------> 8 cm
</span>
the answer is
8 cm

3 0
2 years ago
Read 2 more answers
What are the measures of Arc J K and ∠KIJ?
expeople1 [14]

Answer:

104 and 52

Step-by-step explanation:

just did the assignment on edgen

7 0
2 years ago
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(iii) Find the smallest whole number h such that<br>4704/h<br>is a cube number.<br>​
yan [13]

Answer:

h=588

Step-by-step explanation:

Given the fraction \dfrac{4,704}{h}

Consider its numerator and factor it:

4,704=2^5\cdot 3\cdot 7^2

You cann not take the cube root from 3, 7^2, 2^5, you can only take the cube root from 2^3, then the smallest whole number h such that \dfrac{4,704}{h} is a cube number is

h=2^2\cdot 3\cdot 7^2=4\cdot 3\cdot 49=588

When h=588,

\dfrac{4,704}{588}=8=2^3

6 0
1 year ago
Suma a 10 numere naturale nenule pare este 108.aratati ca doua dintre numere sunt egale
Elenna [48]
Your answer that you are looking for is 108.
5 0
2 years ago
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