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drek231 [11]
3 years ago
7

25 increased to 32..........

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
7 0
Ummmmmmm... seven????
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Elijah spends $15 on 3 t-shirts How much is 1 shirt
almond37 [142]

Answer:

15÷3=5

Step-by-step explanation:

hope this helped u

6 0
3 years ago
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48 POINTS! PLEASE HELP!<br> Show work please THANKS
CaHeK987 [17]

Answer:

C  multiply the first equation by 3

Step-by-step explanation:

3x-y =5

2x+3y = 10

We want to eliminate y

Since the first equation has a negative 1y  and the second equation has 3y

I would multiply the first equation by 3  and then the y's cancel

3(3x-y =5)

9x -3y = 15

2x+3y = 10

------------------

11x = 25

4 0
4 years ago
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Solve the equation by completing the square. X^2+10x+24=0
goldfiish [28.3K]

Answer:

x = -4

x = -6

Step-by-step explanation:

X^2+10x+24=0

(b/2)^2 = (10/2)^2 = 25

X^2+10x+25=-24+25

(x+5)^2 = 1

(x+5) = ± 1

x = +1 -5 = -4

x = -1 -5 = -6

3 0
3 years ago
A population has a mean muequals160 and a standard deviation sigmaequals20. Find the mean and standard deviation of the sampling
hoa [83]

Answer:

Mean 160

Standard deviation 2.63

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 160, \sigma = 20

Find the mean and standard deviation of the sampling distribution of sample means with sample size n = 58.

Mean 160

Standard deviation s = \frac{20}{\sqrt{58}} = 2.63

6 0
4 years ago
I need help please i am giving 100 points and brainliest
liubo4ka [24]

Answer:

-3

Step-by-step explanation:

-7x + 4x = 9

-3x = 9

x = 9/(-3)

<h3>x = -3</h3>

<h2>MARK ME AS BRAINLIST </h2>
8 0
2 years ago
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