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Mashutka [201]
3 years ago
15

How to subtract common denominator

Mathematics
1 answer:
grigory [225]3 years ago
3 0
So, here are the steps.
1. Build each fraction so that both denominators are equal. ...
2. Re-write each equivalent fraction using this new denominator.
3. Now you can subtract the numerators, and keep the denominator of the equivalent fractions.
4. Re-write your answer as a simplified or reduced fraction, if needed.
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Yoko needs 300 copies of her resume printed. Dakota Printing charges 19.50$ for the first 200 copies and 9$ for every 100 additi
enyata [817]

Answer:

29.79 should be the answer

Step-by-step explanation:

200 copies 19.50 + 9.00 for 100 copies = 28.50 + 4% = 29.79

7 0
3 years ago
If the bus is on time to the school 90% of the time, how many days can the school expect the bus on time out of 160 days?
andre [41]

Answer:

144 days

Step-by-step explanation:

160 · 0.9

5 0
3 years ago
Simplify each expression <br><br> 1. -7(6v+4)+3v(v+3)<br><br> 2. -3k(2k-3)+7(k-7)
Olegator [25]
1. -7(6v+4)+3v(v+3)
-42v-28+3v ²+9v
-33v-28+3v ²
=3v ²-33v-28

2. -3k(2k-3)+7(k-7)
-6k ²+9k+7k-49
= -6k ²+16k-49
3 0
3 years ago
Read 2 more answers
What is the slope of the line?<br><br> A. 2<br> B. -2<br> C. 1/2<br> D. -1/2
iogann1982 [59]

slope m = - 2 → B

calculate m using the ' gradient formula '

m = (y₂ - y₁)/(x₂ - x₁)

choosing 2 'clear ' coordinates from the graph of the line

(x₁, y₁) = (0, 7) and (x₂, y₂) = (7, - 5\frac{(- 5 - 7)}{(6 - 0)}) = \frac{- 12}{6} = - 2


m =

3 0
4 years ago
30 points!
stiv31 [10]
Quadratic
f(x)
Increased by 5
(2,16)

7 0
4 years ago
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