Part A: Solve −np − 90 < 30 for n. Show your work. Part B: Solve 5m − 3h = 45 for h. Show your work.

Answers

Answer 1

Answer: A.well to start you have to do np + 90 >- 30
np > - 20
n > - 120/p

and for b.
5m - 45 = 3h
so h = 5m/3 - 15

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Hakim recorded his finishing time, in seconds, for each time he ran the 100 m race during one track season.What was the median of his finishing times?

12.0, 12.4, 11.9, 12.1, 12.2, 12.4, 12.1, 12.3, 11.9

Answers

its 12.1. it is the middle number from largest to least value.

What is 3 divided by 5/6

Answers

Answer:

3.6

Step-by-step explanation:

or infraction form 3 3/5

Answer:

3.6

Step-by-step explanation:

3÷5/6=3×6/5=18/5=3.6

The steamboat River Queen travels at the rate of 30km/h in still water. If it can travel 45 km up stream in the same amount of time that it takes to go 63 km down stream what is the rate of the current.

Answers

$x-the\ rate\ of\ the\ current\nt-time\n\n \left\{\begin{array}{ccc}(30-x)t=45\n(30+x)t=63\end{array}\right\n \left\{\begin{array}{ccc}t=(45)/(30-x)\nt=(63)/(30+x)\end{array}\right\n\n(45)/(30-x)=(63)/(30+x)\n\ncross\ multiply\n\n63(30-x)=45(30+x)\n1890-63x=1350+45x\n-63x-45x=1350-1890\n-108x=-540\ \ \ \ /:(-108)\nx=5\n\nAnswer:The\ rate\ of\ the\ current\ is\ 5\ km/h.$

Find the unknown length. Round to the nearest tenth if necessary.

Answers

Answer:

a = 7.4

Step-by-step explanation:

Since this is a right triangle, we will use the Pythagorean theorem:

c^2 = a^2 + b^2

28^2 = a^2 + 27^2

784 = a^2 + 729

55 = a^2

a = 7.4

Answer:

55 i believe

28 + 27 = 55

A blimp can be seen flying at an altitude of 5500 feet above a motor speedway during a race. The slanted distance directly to the pagoda at the startdashfinish line is d feet. Express the horizontal distance h as a function of d.