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2 years ago

If you multiply a number by 3 an then subtract 5,you will get 40.what is the number?

Mathematics

1 answer:

Murljashka [212]2 years ago

3 0

Answer:

The answer is 15

Step-by-step explanation:

15*3=45-5=40

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One afternoon, a student who is 5 feet 4 inches tall measured shadows to find the height of a telephone pole. The student's shad

Setler79 [48]

Answer:

19.9875 feet

Step-by-step explanation:

The formula is given as:

Shadow of the student/Height of the student = Shadow of the telephone pole/Height of the telephone pole.

1 inch = 0.0833 feet

Shadow of the student = 5ft

Height of the student = 5 feet 4 inches

4 inches to feet

= 4 × 0.0833 feet

= 0.33 feet

Hence: Height of the student = 5 + 0.33 = 5.33 feet

Shadow of the telephone pole = 18 feet 9 inches long

9 inches to feet

= 9 × 0.0833 feet

= 0.75 feet

Hence: Shadow of the telephone pole = 18 + 0.75 = 18.75 feet

Height of the telephone pole= x

Therefore:

5/5.33 = 18.75/x

Cross Multiply

5x = 5.33 × 18.75

x = 5.33 × 18.75/5

x = 19.9875 feet

The height of the telephone pole = 19.9875 feet

4 0

3 years ago

Complete the function table to find the function values of {-1, 7} for f(n) = 2n - 1.

allochka39001 [22]

Answer:

In its broadest definition, “civic education” means all the processes that ... That makes the question of good citizenship relative to the ... These questions are rarely treated together as part of comprehensive theories of civic education; ... of virtue, so would the polis itself become more virtuous and excellent.

Step-by-step explanation:

3 0

3 years ago

Match the following items.

ASHA 777 [7]

1 is milli. 2 is kilo. 3 is centi. 4 is meter. 5 is kilogram. 6 is liter.

7 0

4 years ago

Read 2 more answers

At the start of the month, Suzanne's clothing store website had 7,278 hits. At the end of the month, it had 50,165 hits. If each

jeyben [28]

Answer:

The closest answer would be A. 64,500

Step-by-step explanation:

50,165 - 7,278 = 42,887 hits

42,887 × 1.5 = 64,350.5 minutes

3 0

3 years ago

For a certain online store, the distribution of number per hour is approximately normal with mean 1200 purchases and standard de

Advocard [28]

Answer: 16%

Step-by-step explanation:

When we have a normal distribution, the 100% of our sample will be placed in a "gaussian bell".

Where the middle of this bell coincides with the mean.

The mean, in this case, is 1200, and the standard deviation is 200.

In the image below you can see that between the points.

Mean + standard deviation and the end of the graph, we have:

13.5% + 2.35% + 0.15% = 16%

And particularly, if we want to know the percentage that exceed 1400, will be the same percentage above the mean plus the standard deviation.

mean = 1200

SD = 200

mean + standard deviation = 1200 + 200 = 1400.

Then the percentage that exceeds 1400 is equal to the percentage that we found above, then the correct option is C: 16%

5 0

3 years ago