What is the unit rate for 840 feet in 40 seconds?

Answers

Answer 1

Answer: 840 feet / 40 seconds = 21 feet per second.

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Jamil finds that he reads 1/5 of his 115-page book in 1/4 hour

Answers

Answer:

He will read 92 pages in an hour going by the current rate at which he reads

Step-by-step explanation:

The complete question is as follows;

Jamil found that he reads 1/5 of his 115 - page book in 1/4 of an hour. At this rate how many pages does he read in an hour

We proceed as follows;

If he reads 1/5 of 115 in 1/4 hour

1/5 of 115 pages refer to 1/5 * 115 = 23 pages

This means that he reads 23 pages in quarter of an hour

So in an hours the number of pages he will read will be 23 * 4 = 92 pages

Solve for x pleasssee help

Answers

Answer:

x=8

Step-by-step explanation:

13=x+5

8=x

Answer:

x = 8

Step-by-step explanation:

Okay, so the top and bottom of a parallelogram are equal (or else it would be a trapezoid), so we just have to construct our cute lil algebraic expression:

x + 5 = 13

So now we have to do the inverse operations thingy:

13 - 5 = 8

So x = 8

tell me if this is wrong so I can fix it

hope this helps:)

Evaluate (3+8i)(-2-i)

Answers

Answer:

2 - 19i

Step-by-step explanation:

note that i² = - 1

given

(3 + 8i)(- 2 - i) ← expand using FOIL

= - 6 - 3i - 16i - 8i²

= - 6 - 3i - 16i - 8(- 1)

= - 6 - 3i - 16i + 8 ← collect like terms

= 2 - 19i

Is 5.1 x 10^-8 in scientific notation?

Answers

Yes, it's in scientific notation.

What is the square root of 64y16?

4y4
4y8
8y4
8y8

Answers

Answer:

Step-by-step explanation:

Answer:

D. 8y8

Step-by-step explanation:

Through what angle does the minute hand of a clock turn in 12 minutes of time?

Answers

A method to solve such problems is to consider the rate of change of the angle in degrees per minute. The hour hand of a normal 12-hour analogue clock turns 360° in 12 hours (720 minutes) or 0.5° per minute. The minute hand rotates through 360° in 60 minutes or 6° per minute.

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