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Alex787 [66]
3 years ago
11

Hey I need help so can anyone help me please

Mathematics
2 answers:
jonny [76]3 years ago
5 0

Answer:

r = -189

Step-by-step explanation:

-13 = r/9 + 8

- 8          - 8

-21 = r/9

× 9   × 9

-189 = r

Fed [463]3 years ago
4 0

Answer:

r = -189

Step-by-step explanation:

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Ms. Graves gave her class 124 minutes to read. Carrie read 5 and a 1/2 pages in that time. At what rate, in pages per ¼ of a day
Dmitrij [34]

Answer:

600 pages ithink I hope I helped

8 0
3 years ago
A map is shown with a scale drawing of 1 inch = 15 miles,nicloe measured the distance to the next town as 3 inches. How many mil
KonstantinChe [14]

Answer: There are 45 miles that she have to travel to get to the next down.

Step-by-step explanation:

Since we have given that

1 inch = 15 miles

If there are given 3 inches.

We need to find the number of miles she have to travel to get to travel to get to the next town.

So, it becomes,

\dfrac{1}{15}=\dfrac{3}{x}\\\\x=15\times 3\\\\x=45\ miles

Hence, there are 45 miles that she have to travel to get to the next down.

6 0
4 years ago
Each half of the drawbridge is about 284 feet long. How high does the drawbridge rise when x is 30?? The drawbridge rises about
LuckyWell [14K]

Answer:

height = 142.00 ft

height ≈ 200. 82 ft

height ≈ 245.95 ft

Step-by-step explanation:

The picture below represent the image of the draw bridge. The illustration will form a right angle triangle. The hypotenuse is each half of the drawbridge which is 284 ft long. The opposite side  of the triangle is facing the drawbridge half leg and the adjacent side is horizontal length. This is the side that made the angle with the drawbridge half leg(hypotenuse).

The question ask us to find the height of the drawbridge when it rise which is the opposite sides of the triangle when the angle is 30° , 45° and  60°.

Using SOHCAHTOA principle,

Angle 30°

sin 30° = opposite/hypotenuse

sin 30°  = height/284

cross multiply

height = 0.5 × 284

height = 142.00 ft

Angle 45°

sin 45° = height/284

height = 284 × 0.70710678118

height = 200.818325857

height ≈ 200. 82 ft

Angle 60°

sin 60 = height/284

cross multiply

height = 0.86602540378  × 284

height = 245.951214675

height ≈ 245.95 ft

6 0
3 years ago
Which expression has a value of 15 when n= 7?<br> 43-5<br> O 31-5<br> O on-28<br> 28<br> 019-<br> n
Levart [38]

Answer:

19- 28 over N

Step-by-step explanation:

8 0
3 years ago
Find the volume of the solid to the nearest unit.<br> Solve both if your heart desires.
motikmotik

Answer:

24,

I'm sorry i only answered the first question

Step-by-step explanation:

the volume of the solid or cube is 24

1 x 8 x 3 = 8 x 3 = 24

hope this helped you somehow

5 0
3 years ago
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