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3 years ago

PLEASE HELP QUICK. I'm Offering 10pt & Brainliest answer

Mathematics

1 answer:

qaws [65]3 years ago

4 0

The answer is 16 x equals 7

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In one baseball season, Nolan hit twice the difference of the number of home runs Mrs. Davis hit and 6. Altogether, they hit 18

Alborosie

Answer:

Nolan hitted 8 home runs

Step-by-step explanation:

Let's call the number of home runs that Nolan hitted by N, and that Davis hitted by D.

So, we can write the following equations:

N = 2 * (D - 6)

N + D = 18

Now we can solve the system of equations, using the value of N from the first equation in the second one:

2 * (D - 6) + D = 18

2*D - 12 + D = 18

3*D = 30

D = 10

Now we find N:

N + D = 18

N + 10 = 18

N = 8

So we have that Nolan hitted 8 home runs.

4 0

3 years ago

I need help? Can you please tell me

BaLLatris [955]

Answer:

whats the questun

Step-by-step explanation:

7 0

2 years ago

A firetruck pulls up next to a burning building that is 25 ft away the ladder operator extends the ladder at a 35 degree angle h

Bogdan [553]

Here u go I drew a diagram to help u visualise

Answer is 30.53 cm

4 0

3 years ago

PLEASE HELP STAT WILL MARK BRAINLIEST.

Marina CMI [18]

Answer:

19.5

Step-by-step explanation:

78 divided by 4

8 0

3 years ago

In the beginning of the study, a randomly selected group of 121 students scored an average of 252 words per minute on the readin

Alborosie

Answer:

Since the sample size is larger than 30, the cognitive psychologist can assume that the sampling distribution of M will be approximately normal.

Step-by-step explanation:

We use the central limit theorem to solve this question.

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

Since the sample size is larger than 30, the cognitive psychologist can assume that the sampling distribution of M will be approximately normal.

5 0

3 years ago