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lana [24]
3 years ago
10

Solve for x and y. Then find their sum.

Mathematics
1 answer:
7nadin3 [17]3 years ago
8 0

Answer:

It looks complicated lolk

Step-by-step explanation:

X is at the top and. Y is at the bottom :D

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mr.barret bought a new battery for his new car. the battery cost $72. sincw batteries are a taxable item he had to pay 7.5%. wha
Aloiza [94]
$77.40

$72 (price) x 1.075 (the one is so you can do it in one step, the .075 is 7.5%)
That equals $77.40
8 0
3 years ago
Read 2 more answers
(-
tigry1 [53]

Answer:

1125

Step-by-step explanation:

(-12-13)(-14-15-16)

-25*-45=1125

hope this helps you

5 0
3 years ago
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The mean percentage of a population of people eating out at least once a week is 57% with a standard deviation of 3.5%. Assume t
Musya8 [376]

Answer:

55.89 % < X < 58.11%

Step-by-step explanation:

We have a Normal Curve.

P( L <  Z  <  U ) =  95%

Two-tailed Confidence Interval.

L  is above the 2.5%, so L = -1.96  from the chart

U is below the 2.5%,  so  U = 1.96

P( - 1.96 < Z < 1.96) = 95%

[(x - 57) / 3.5 ]* root(40) = -1.96

X = 55.915 Lower

(U - 57) / 3.5  *root(40) = 1.96

U - 57 =  1.96*3.5/root(40) = 1.08466

U = 58.084

so,  from   55.9 < X < 58.1

6 0
4 years ago
The quotient of x and 10 equals 30
DiKsa [7]

Answer:

x=3

Step-by-step explanation:

I'm assuming that's what you're asking.

x*10=30=>x=30/10=3

3 0
3 years ago
De un grupo de 80 niños, se sabe que 50 estudian, 40 juegan y 15 estudian y juegan, ¿cuántos solo estudian?
Burka [1]

Answer:

Step-by-step explanation:

Portuguese - Brazil

Estudam - A

Jogam - B

A=50

B=15

A∩B = 15

Somente estudam = 50 - 15 = 35

Somente jogam = 25

Nem estudam nem jogam = 5

4 0
3 years ago
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