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AleksandrR [38]
3 years ago
5

Noah earned w dollars over the summer. Mai earned x dollars, which is y dollars more than

Mathematics
1 answer:
Wewaii [24]3 years ago
4 0

Answer:

Equation: x-w=y

Step-by-step explanation:

:)

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What's the number that is halfway between numbers 0 and 121?
Dima020 [189]

Answer:

solution given;

half way between 0 and 121=?

let a=0

and

b=121

we have

halfway =[a+b]/2=[0+121]/2=60.5

<u>half way between 0 and 121</u><u> </u><u>i</u><u>s</u><u> </u><u>6</u><u>0</u><u>.</u><u>5</u>

7 0
2 years ago
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NO LINKS OR I WILL REPORT
Elenna [48]

Answer:

<u>Gina's height in inches</u><u>:</u> 63 inches

<u>Noelle's height in inches</u><u>:</u> 67 inches

<u>Equation</u><u>:</u> n + (n - 4) = 130

Step-by-step explanation:

n + (n - 4) = 130

n + n - 4 = 130

2n - 4 = 130

2n - 4 + 4 = 130 + 4

2n = 134

2n ÷ 2 = 134 ÷ 2

n = 67

67 - 4 = 63

7 0
3 years ago
Mary and vivian have some money. if mary gave vivan $8 they would have same amount. However if vivan gives mary $8, then mary wo
kow [346]

Answer:

Money with Mary = $28

Money with Vivan = $12

Step-by-step explanation

Money with Mary = $ m

Money with Vivan = $v

If mary gave vivan $8 they would have same amount. $ 8 is reduced from Mary's amount 'm' and $8 is added  to vivan amount 'v'

m - 8 = v + 8

m = v + 8 +8

m -v = 16     ----------------(I)

If vivan gives mary $8, then mary would have 9 times as much as vivan.

9(v - 8) = m + 8

9v - 72 = m + 8

9v - m = 8 + 72

-m + 9v = 80 --------------(II)

Add equation (I) and (II). Thus m  will be cancelled and we will get the value of v

(I)       m - v  = 16

(II)    <u>-m  + 9v = 80</u> {Now add}

               8v = 96

                 v = 96/8

v = $ 12

Plugin v = 12 in equation (I)

m - 12 = 16

m = 16 +12

m =$ 28

7 0
2 years ago
An animal shelter has a 65% adoption rate for puppies. Of all puppies in the shelter, 75% live to be 7 years or older. Of the pu
Hatshy [7]

Answer:

52% probability that a randomly selected puppy in the shelter will get adopted and live 7 or more years

Step-by-step explanation:

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: A puppy is adopted.

Event B: The puppy lives 7 or more years.

An animal shelter has a 65% adoption rate for puppies

This means that P(A) = 0.65

Of the puppies who are adopted, 80% live to be 7 years or older.

This means that P(B|A) = 0.8

What is the probability that a randomly selected puppy in the shelter will get adopted and live 7 or more years

P(B|A) = \frac{P(A \cap B)}{P(A)}

P(A \cap B) = P(A)*P(B|A)

P(A \cap B) = 0.65*0.8

P(A \cap B) = 0.52

52% probability that a randomly selected puppy in the shelter will get adopted and live 7 or more years

5 0
3 years ago
-2x+3y=12 find the x-intercept<br> I need help please!
koban [17]

Answer: x = -6

Step-by-step explanation:

Whenever you want to find the x-intercept (this would also apply to y-intercept, but we're focusing on x), you'd simply equal y to 0 and then solve for x.

-2x + 3(0) = 12

-2x = 12

÷-2   ÷-2

The answer is going to be x = -6

4 0
3 years ago
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