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3 years ago

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A cyclist travels 2/3 of his journey to an average speed of 12 mph he takes the remaining 30 miles of his journey in three hours

how long does his trip take

1 answer:

Kamila [148]3 years ago

3 0

Answer:

8 hours

Step-by-step:

Search up your question on google the solution is on there.

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A community pool charges $78 for swim lessons and a $2 towel rental fee per day. At the end of the summer Yolanda spends $102. H

Alexeev081 [22]

Answer: 12 days

Step-by-step explanation:

Given

A community pool charges $78 for a swim lesson and $2 for a towel each day

Suppose Yolanda attended the session for x days

So, we can write the total fees of $102 as

$\Rightarrow 102=78+2x\\\Rightarrow 2x=102-78\\\\\Rightarrow x=\dfrac{24}{2}\\\\\Rightarrow x=12$

So, Yolanda attended the swim lessons for 12 days

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3 years ago

In the U.S., 95% of children have received their DTaP vaccine. Calculate the probability that fewer than 700 out of a sample of

Studentka2010 [4]

Answer:

0.0183

Step-by-step explanation:

The percentage of students, who received their DTaP vaccine is 95%.

This implies that:

$p = 0.95$

and

$q = 1 - 0.95 = 0.05$

The standard deviation of the proportion is

$= \sqrt{ \frac{pq}{n} }$

$= \sqrt{ \frac{0.95 \times 0.05}{750} } \\ = 0.00796$

We want to find the probability, that the sample proportion,

$\hat p \leqslant \frac{700}{750} \\ \hat p \leqslant 0.9 \bar3$

$P(\hat p\le0.9\bar3)=P(Z\le \frac{0.9 \bar3 - 0.95 }{0.00796} ) \\ = P(Z\le - 2.09) \\ = 0.0183$

5 0

3 years ago

Cuanto es 3 octavos menos 1 octavo

Marianna [84]

Answer:

hfpudpydoydoydoy

odpydlydozifzfjjt

6 0

3 years ago

Which ratio is equal to 15:20? <br> options:<br> 5 to 10<br> 18:25<br> 21 to 28<br> 24:30

blsea [12.9K]

Answer:

21 to 28

Step-by-step explanation:

15:20

Divide each side by 5

15/5 : 20/5

3:4

we want to find the one that is 3:4

5 to 10 Divide by 5 5/5 to 10/5 1 to 2

18:25 this does not simplify

21 to 28 divide by 7 21/7 to 28/7 3 to 4

24:30 divide by 6 24/6: 30/6 4:5

7 0

3 years ago

Read 2 more answers

What is 2 3/5 x 1 3/7

laila [671]

Answer: 3 5/7
Hope this helps.

6 0

3 years ago