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lisabon 2012 [21]
3 years ago
11

48 cookies; 25% decrease=?

Mathematics
1 answer:
stepladder [879]3 years ago
5 0
First, you do a proportion. X/48=25/100. 25 times 48 equals 1,200. Now divide 1,200 by 100 which equals 12. This means 12 cookies is 25% of 48 cookies. Now do 48-12 which is 36. YOUR ANSWER IS 36
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What is the ratio of the area of abc to the area of triangle qst..?
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6 0
3 years ago
2<br>Decrease R420 in the ratio 4:7​
Oxana [17]

Step-by-step explanation:

Let the numbers are 4x and 7x. According to the question if each number is increased by 20, the ratio becomes 7 : 9.

Then,

( 4x + 20 ) : ( 7x + 20 ) = 7 : 9

9( 4x + 20 ) = 7( 7x + 20 )

9( 4x ) + 9( 20 ) = 7( 7x ) + 7( 20 )

9( 20 ) - 7( 20 ) = 7( 7x ) - 9( 4x )

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Therefore, number are :–

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4 0
3 years ago
Please please answer
gizmo_the_mogwai [7]

Answer:

-5

Step-by-step explanation:

(f\circ g)(-1)=f(g(-1))=f(1-3)=f(-2)=-4-1=-5

7 0
3 years ago
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