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baherus [9]
3 years ago
9

Toby pulled weeds and earned $22.50 for three hours of work. How much will he earn tomorrow if he works for 2 hours?

Mathematics
2 answers:
postnew [5]3 years ago
8 0
How many hours total?
RUDIKE [14]3 years ago
8 0
He would earn $15 dollars



(If you can could you give me the Brainliest answer so I can move up,I haven’t had one yet)
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A school raised $4,000 for its new library. 36% of the money is used to buy reference book. How much money is used to buy refere
Blizzard [7]

Answer:

$1440

Step-by-step explanation:

36% of $4,000 is $1440

6 0
3 years ago
9. What is the likelihood that a randomly selected couple's relationship survived between 90 and 150 days
andrew-mc [135]

Answer:

0.5818

Step-by-step explanation:

Suppose the average teenage romantic relationship is normally distributed with a mean number of 100 days with a standard deviation of 30 days.

Answer:

The z score is used to determine how many standard deviations that the raw score is above or below the mean. If the z score is positive then the raw score is above the mean and if it is negative then it is below the mean. It is given by:

z=\frac{x-\mu}{\sigma}\\ \\where\ \mu=mean,\sigma=standard\ deviation, x=raw\ score

Given that:

\mu=100\ days,\sigma=30\ days\\\\For\ x=90\\\\z=\frac{90-100}{30} =-0.33\\\\For\ x=150\\\\z=\frac{150-100}{30} =1.67

Therefore, from the normal distribution table, P(90 < x < 150) = P(-0.33 < z < 1.67) = P(z < 1.67) - P(z < -0.33) = 0.9525 - 0.3707 = 0.5818

7 0
3 years ago
Pplllllzz help where should they goo ill make u brainlist and give u a thank you and I'll get points
stealth61 [152]

Answer:

5/5=1

2/8 put it right after the 0

3/6=1/2

1 1/3 put it behined the 1

-1/3 put it between the 0 and -1/2

1 9/10 put it in front of 2

7/4 put it in front of 2

Step-by-step explanation:

hope that helps

8 0
2 years ago
This is my first time, but my question is what is 7/8 of 20?
Goshia [24]
17.5
Divide 7 by 8 to get .875 and multiply that by 20 to get your answer.

6 0
3 years ago
Read 2 more answers
Who is correct and why?
Deffense [45]
There is no information below to give an answer .
6 0
3 years ago
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