Kegan wants to buy a new skateboard that will cost $140. So far, Kegan has saved $30 toward the purchase to the skateboard. To raise the remaining money needed, Kegan mows his neighbor’s lawn and charges $10 each time he completes the job. Write an equation to find x, the number of times Kegan mows his neighbor’s lawn. How many times will Kegan need to mow his neighbor’s lawn to have enough money to buy the skateboard?

11 more times.

Step-by-step explanation:

Ok, so what do we know?

We know that he wants to buy a skateboard that will cost $140.

He already saved $30.

To raise the remaining money needed, he mows his neighbor’s lawn and charges $10 each time he completes the job.

What do we want to find?

How many times Kegan needs to mow his neighbor's lawn to have enough money to buy the skateboard.

Ok we also need to write an equation.

$140-$30=$110

My equation will be 110 ÷ 10 = x.

Using this equation, I can solve for x.

110 ÷ 10 = 11.

So Kegan will need to mow 11 more times to have enough money for the skateboard.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;