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3 years ago

8

Kyra observed that 85% of the students at a library liked reading mystery stories. If 30 students at the library did not like re

ading mystery stories, the number of students at the library who liked mystery stories was _____. (only put numeric values, no other symbols).

1 answer:

Yanka [14]3 years ago

5 0

Answer:

170

Step-by-step explanation:

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Write the inequality to represent the situation: "x can be no more than 5." Copy/paste the symbols if you need to: < > ≤ ≥

Sophie [7]

Answer:

x < 5

Step-by-step explanation:

Hi,

If you have a line under the < or > sign, it means x can be less than OR EQUAL TO, since x has to be less than 5, neither of those signs can work. Now, < means less than and > means greater than. For this, x < 5 is the correct answer because we know that x has to be less than 5.

I hope this helps :)

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All positive numbers not including 0

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3 years ago

Two trains leave the station at the same time, one heading west and the other east. The westbound train travels 14 miles per hou

Sergeu [11.5K]

Answer:

The answer to your question is 166 mi/h

Step-by-step explanation:

Data

ve = rate eastbound train

vw = rate westbound train = ve - 14

distance = d = 900 mi

time = t = 5 h

Formula

v = $\frac{distance}{time} = \frac{d}{t}$

Substitution and simplification

$ve = \frac{900}{5} = 180 mi/h$

Now, substitute this value in the equation of vw

vw = 180 - 14

Result

vw = 166 mi/h

7 0

3 years ago

Jerry and Carlos each have $1,000 and are trying to increase their savings. Jerry will keep his money at home and add $50 per mo

8_murik_8 [283]

Answer:

Jerry has a better saving plan for increasing his savings than Carlos

Step-by-step explanation:

Jerry's initial principal = $1000

Carlos initial principal = $1000

Jerry add $50 monthly this means that in 6 months he has

$50 x 6 = $300 as interest

This means that at the end of 6 months, Jerry would have $1,300 dollars at home

For Carlos the interest rate is 4% per year compounded monthly

If we calculate his interest per month we have:

Interest = 1000 x 4/(100 x 12) = $3.33

2nd month = 1003.33 x 4/(100 x 12) = $3.34

3rd month = 1006.68 x 4/(100 x 12) = $3.36

4th month = 1010.04 x 4/(100 x 12) = $3.37

5th month = 1013.41 x 4/(100 x 12) = $3.38

6th month = 1016.79 x 4/(100 x 12) = $3.40

At the end of 6 month, Carlos would have $1020.18 in the bank

Hence, Jerry has a better saving plan for increasing his savings than Carlos

8 0

3 years ago