Giving brainliest!!!???

Mathematics

1 answer:

Ne4ueva [31]3 years ago

8 0

Answer:

Step-by-step explanation:

Since they are talking about the weight of the box increasing I think (correct me if I am wrong) that the answer would be w.

I hope this helps :)

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Blake mows a half acre of lawn for his grandparents every two weeks. If Blake has already mowed three-fifths of the lawn, how ma

Slav-nsk [51]

To answer this you will need to know that there are 43,560 square feet in 1 acre.

1. Half of this is 43560/2 or 21780 square feet.

2. Out of this amount Blake has already mowed 3/5 of the lawn. This means he must mow 2/5 (1 - 3/5) more.

2/5 of 21,780 ft.² can be represented this way:

2/5 x 21780 =?

He needs to mow 8712 ft.² more.

7 0

4 years ago

What is 25/30 as a percent and decimal

torisob [31]

Solving 25 / 30 in percent.
25 / 30 * 100
= 25 / 3 *10
=250 / 3
= 83.3 Ans

Solving 25 / 30 in decimal
25 / 30
= 0.833 Ans

8 0

3 years ago

Read 2 more answers

IQ scores for adults age 20 to 34 years are normally distributed according to N(120, 20). In what range does the middle 68% of p

Ilya [14]

The required interval of the given normal distribution using the empirical rule is [100, 140].

The empirical rule formula (also known as a 68 95 99 rule formula) uses data from a normal distribution to determine the first, second, and third standard deviations, which, respectively, differ from the mean value by 68%, 95%, and 99%. Additionally, it shows that 99.9% of the data fall inside the third standard deviation range (either above or below the mean value). The empirical rule formula is described below with cases that have been resolved.

In the question, we are given that IQ scores for adults aged 20 to 34 years are normally distributed according to N(120, 20), and are asked for the range in which the middle 68% of people in this group score on the test.

N(120, 20) signifies a normal distribution with mean, μ = 120, and the standard deviation, σ = 20.

By the empirical formula, 68% of the data lies within one standard deviation from the mean.

Thus, the required interval is [μ - σ, μ + σ] = [120 - 20, 120 + 20] = [100, 140].

Learn more about the empirical rule at

brainly.com/question/10093236

#SPJ4

6 0

1 year ago

Your friend incorrectly says the solution to the equation 11.2y - 7.4y=141.36 is y=7.6 what error did your friend make? A) Divid

krek1111 [17]

The correct answer is: D) Subtracted like terms incorrectly

Step-by-step explanation: