All categories

3 years ago

(2+3)+(2+4) plzzz help

Mathematics

1 answer:

madreJ [45]3 years ago

4 0

2+3=5
2+4=6
5+6=11
your answer is 11

You might be interested in

Name three numbers whose product is about 9,000

Fed [463]

1x9000
3x3000
2x4500
I hope this is what you are looking for

5 0

3 years ago

Read 2 more answers

Beth is selling tickets for a dinner at her school.

iren [92.7K]

Answer:

Step-by-step explanation:

check each child answer and multiply by 4.50

check each adult answer and multiply by 6.00

add both answers up

and see which one it is

its not A, B, or C

5 0

3 years ago

Read 2 more answers

Easy question

Ira Lisetskai [31]

Answer:

7/16

Step-by-step explanation:

Let the fraction be x/y

(x+5)/(y+5) = 4/7

7x + 35 = 4y + 20

7x + 15 = 4y

(x-1)/(y-1) = 2/5

5x - 5 = 2y - 2

2y = 5x - 3

7x + 15 = 2(5x - 3)

7x + 15 = 10x - 6

3x = 21

x = 7

2y = 5(7) - 3

2y = 32

y = 16

x/y = 7/16

5 0

4 years ago

Carly drove 617.3 miles his car get about 41 miles per gallon which is the best estimate of how many gallons of gas Carly used

Lerok [7]

Answer:

He used about 15 gallons

Step-by-step explanation: if he drove 617.3 miles and he gets 41 miles per gallon, then we can use the formula 41x=617.3 to solve this formula, we would divide 617.3 by 41 to isolate x. 617.3 divided by 41 is equal to 15 and therefore x = 15

3 0

3 years ago

Based on information from Consumer Reports, a random sample of 35 thirty-gram cookies had a sample mean of 146 calories. The sta

Nonamiya [84]

Using the z-distribution, it is found that the 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).

We are given the standard deviation for the population, which is why the z-distribution is used to solve this question.

The information given is:

Sample mean of $\overline{x} = 146$ .

Population standard deviation of $\sigma = 12$ .

Sample size of $n = 65$ .

The confidence interval is:

$\overline{x} \pm z\frac{\sigma}{\sqrt{n}}$

The critical value, using a z-distribution calculator, for a 95% confidence interval is z = 1.645, hence:

$\overline{x} - z\frac{\sigma}{\sqrt{n}} = 146 - 1.645\frac{12}{\sqrt{35}} = 143$

$\overline{x} + z\frac{\sigma}{\sqrt{n}} = 146 + 1.645\frac{12}{\sqrt{35}} = 149$

The 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).

A similar problem is given at brainly.com/question/16807970

8 0

3 years ago