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lianna [129]
3 years ago
7

What is another way to write 3 x (4+5) = 27? Pleas help

Mathematics
2 answers:
Xelga [282]3 years ago
8 0

Answer:

Step-by-step explanation:

3 x (5+4) = 27

<em>Hope that helps!</em>

Tasya [4]3 years ago
4 0
All I see is 3 x (5+4) and 3 x (4+5)
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Find y when x=14 if y varies directly with x2 and y=72 when x=6
katovenus [111]

The approach is to first find the value of constant of proportionality 'k'.

As y varies directly with x²

So we have

y = k x².

Now when x = 6 , y = 72

Substituting the values we get

72 = k (6)²

72 = 36 k

Dividing by 36 on both sides

2 = k

So (1) becomes

y = 2 x²

Now we need to find y when x = 14

Substituting the values in (2) we get

y = 2 ×(14)²

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y =  392

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Xanthia can read 100 pages per hour and Molly can read 50 pages per hour. If they each read the same book, and the book has 225
Talja [164]

Answer:

135 minutes

Step-by-step explanation:

Let

y -----> the number of pages to finish reading the book

x ----> the number of hours

we know that

The linear equation in slope intercept form is equal to

y=mx+b

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m is the unit rate or slope of the linear equation

b is the y-intercept or initial value

In this problem we have

<em>Xanthia</em>

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b=225\ pages

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For y=0

substitute and solve for x

0=-100x+225

100x=225

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<em>Molly</em>

m=50\ pages/hour

b=225\ pages

y=-50x+225 ----> the slope is negative because is a decreasing function

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x=4.5\ hours --- Molly's time to finish reading the book

To find out how many more minutes than Xanthia would it take for Molly to finish reading the book, subtract Xanthia's time from Molly's time

4.5\ h-2.25\ h=2.25\ h

Convert to minutes

Multiply by 60

2.25\ h=2.25(60)=135\ minutes

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castortr0y [4]
D. AH

Segment AH is parallel to BD and if the lines were drawn out infinitely, the two lines would never meet.
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Answer:

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Step-by-step explanation:

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Following data, what would be the value of x?
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Answer:

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