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2 years ago

1. Kaleb worked at a toy store during his summer vacation from

Mathematics

1 answer:

aleksandr82 [10.1K]2 years ago

7 0

Answer:

1. $10.56

Step-by-step explanation:

950.40÷90=10.56

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A person goes to work across three intersections. The probability of seeing the red light at the first intersection is 60%, the

vazorg [7]

add together all (3) percentages 60+70+80=210
subtract the answer from 300 (300 because there were 3 percentages) 300-210=90
divide this answer by 3 (also because there were 3 percentages) 90/3=30
the probability of the person walking without a red light is 30%

8 0

3 years ago

The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 4 to 7. If there were 5

Kipish [7]

4/7 = y/5019....with y being yes votes
cross multiply
(7)(y) = (4)(5019)
7y = 20076
y = 20076/7
y = 2868 <=== yes votes

total of yes and no votes : 5019 + 2868 = 7887

8 0

2 years ago

A scientist who studies sleep has developed a new technique to help people sleep each night. He

Andru [333]

Considering the situation described, the scientist's null and alternative hypothesis are described by:

Null hypothesis $H_0: \mu = 0$ ; Alternative hypothesis $H_1: \mu \neq 0$ .

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if there is no difference, that is, the difference of the means represented by $\mu$ is of 0, hence:

$H_0: \mu = 0$

At the alternative hypothesis, it is tested if there is a difference, hence:

$H_1: \mu \neq 0$

More can be learned about an hypothesis test at brainly.com/question/26454209

7 0

1 year ago

Find the missing lengths!!!!!!!

Katen [24]

Answer:

Step-by-step explanation:

It is a square so the length of 1 side = $\sqrt{169}$ = 13

5 0

2 years ago

-6 minus -2 1/2<br>step by step explanation please

tatuchka [14]

Turn fraction into a decimal.

-2 1/2 = -2.5

Remember that when you subtract a negative number it automatically changes it to adding a positive number.

-6 + 2.5 = -3.5

Hope This Helped! Good Luck!

7 0

3 years ago

Read 2 more answers