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Kay [80]
3 years ago
6

Here is the last answers...

Mathematics
2 answers:
nataly862011 [7]3 years ago
8 0
The minimum is 14 questions
Zarrin [17]3 years ago
5 0

Step-by-step explanation:

You are finding the whole

0.7 × 20 = 14

or

70% of 20 = 7/10 x 20 = 7/10 x 20/1 = 140/10

140/10

140/10 = 14/1

The minimum number of questions he need to do are 14

I'm not sure if you are finding the part or the whole

let me know if im wrong

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pshichka [43]
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7 0
3 years ago
Susan bought a bike for $93.75. If the bike was originally $125, what was the percent of discount?
4vir4ik [10]

Answer:

The discount is 25%

Step-by-step explanation:

Divide 93.75 by 125 = 75%

however, that is not the discount.

it is the difference of the 100 and the discount.

to find the discount, you do 100 - 75 = 25

6 0
3 years ago
Find the quotient.<br><br> 154 divided by 14
Softa [21]

Answer:

11

Step-by-step explanation:

\frac{154}{14} =11\\\\check: 11*14=154

5 0
2 years ago
A used electronics store pays $30 for each cell phone, spends $20 refurbishing the phone, and sells the refurbished phone to a c
Amiraneli [1.4K]


I am subtracting the amount it took to make the phone, from the amount they sell the phone to a customer for.
115-(30+20)=x


115-50=x

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8 0
3 years ago
2 equivalent fractions for 9/15
Hitman42 [59]
The easiest to find equivalent fractions is to multiply both the numerator and denominator by the same integer.  

For Example, an equivalent fraction for 9/15 is 18/30.  I got this answer by multiplying 9*2=18 and 15*2=30.

Another equivalent fraction for 9/15 is 27/45 because 9*3=27 and 15*3=45.

******Note
Just make sure that you always multiply the numerator and denominator by the same number, or else your fractions won't be equivalent!!
4 0
3 years ago
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