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babymother [125]
2 years ago
12

PLEASE HELP!! Proving the Parallelogram Side Theorem in Geometry B on edg.

Mathematics
1 answer:
RideAnS [48]2 years ago
9 0

Here are the answers :D

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Percy is 8 years older than Ginny. In ten years time he will be three times Ginnys present age. How old is Percy now?
LekaFEV [45]
Now,
G - Ginny's age.
P=G+8, Percy's age.

In 10 years,
G + 10 - Ginny's age in 10 years.
P+10 -  Percy's age in 10 years.

<span> In ten years time Percy (P+10) will be three times Ginnys present age (3G).
P+10=3G

Now we have 2 equations, and we can write a system of equations.

</span>(1)     P=G+8
(2)     P+10=3G  -------> G=(P+10)/3, we need to substitute it into equation 1.

( P=(P+10)/3+8)   /*3
3P=P +10+24
2P = 34
P = 17

Percy is 17 years old now.

Check,
P=17, G=17-8=9
P+10=3G , 17+10=3*9, 27 = 27 True
5 0
3 years ago
There are 36 student in Mr. Barrett's math class. If there are 27 girls, what percent of the students are boys?
mafiozo [28]
Subtract 27 from 36 = 9
9/36 = 0.25
To turn a decimal into a percent multiply by 100
25%

25% of the students are boys
6 0
3 years ago
Read 2 more answers
Sophia spent 7.30 for school supplies. She spent 3.00 for a notebook and 1.75 for a pen. She also bought 3 large erasers.If each
OverLord2011 [107]
$7.30 - (3.00+1.75) = $7.30 - $4.75 = $2.55
Divide by 3 (3 = number of erasers)
$2.55/3 = $0.85 per eraser.
8 0
3 years ago
The function y = (x - 4)2 + 3 is a transformation of the function y = x?. How is the function's vertex affected by the
slava [35]

Answer:

The vertex of the graph of y = x is shifted to the right 3 units and up 4 units.

The vertex of the graph of y = x?is shifted to the right 4 units and up 3 units.

3 0
3 years ago
If y varies inversely as x and y=32 when x=3, find x when y=15
deff fn [24]
Y=kx, k is not equal to 0
when y=32,x=3, 32=3k
                           k=32/3
so y=32/3*x
when y=15, 15=32/3*x
                     x=45/32

5 0
3 years ago
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