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mrs_skeptik [129]
3 years ago
8

!!MATH GENIUSES HELP ME!!

Mathematics
1 answer:
seraphim [82]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Let x be Bill’s scores.

Let y be Theo’s scores.

x + y = 90

x² = y

Solve for x in the second equation.

x = √y

Put x as √y in the first equation and solve for y.

√y + y = 90

√y = 90 - y

y = (90 - y)²

y = - y² - 180y - 8100

0 = -y² - 181y - 8100

0 = (-y+81)(y-100)

-y+81=0

y = 81

y - 100 = 0

y = 100

100 does not work if we plug in to check, so y is 81.

y = 81

Put y as 81 in the first equation and solve for x.

x + 81 = 90

x = 9

Bill scored 9 goals and Theo scored 81.

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nasty-shy [4]

Answer:

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1/4 inch 1 inch

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7 0
3 years ago
PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Sauron [17]
X=12

(10(12)-20) = 120-20 = 100

(6(12)+8) = 72+8=80

100+80 = 180
4 0
3 years ago
The length of a rectangle is 3 more than the width. If the perimeter of the rectangle is 16 units, find the
pentagon [3]
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2 years ago
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(38-x) is perimeter
then 
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<span>There's a 65.7% chance that it will rain at least once over the three-day period.</span>
5 0
3 years ago
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