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2 years ago

THE FIRST ANSWER GETS BRAINIEST AND 50 POINTS 9(x-5)=8(x+5) what is the value of x?

Mathematics

1 answer:

ki77a [65]2 years ago

7 0

Answer:

x=85

you need to know all the value of all the letter as numbers like x=85 I (= 1), V (= 5), X (= 10), L (= 50), C (= 100), D (= 500), and M (= 1000).

hope this helps and stay safe :)

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2 years ago

A wild horse runs at a rate of 8 miles per hour for 6 hours. Let yy be the distance, in miles, the horse travels for a given amo

spin [16.1K]

Answer:

$0\leq x\leq 6$

$0\leq y\leq 48$

Step-by-step explanation:

we are given

speed =8 mph

time = 6 hours

so, we have

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now, we can find distance

distance = (speed)*(time)

$distance=8\times 6 miles$

$distance=48 miles$

so, we have

$y=48 miles$

so, our range for x and y can be

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5 0

3 years ago

In triangle ABC, a = 4, b = 7, and c = 10. Find A.<br> 18°<br> 34°<br> 56°<br> 162°

marusya05 [52]

Answer:

18°

Step-by-step explanation:

The law of cosines tells you ...

a² = b² + c² -2bc·cos(A)

Solve for cos(A) and fill in the numbers. Note that the value of cos(A) is very close to 1, so the angle will be fairly small. This by itself can steer you to the correct answer.

cos(A) = (b² +c² -a²)/(2bc) = (49 +100 -16)/(2·7·10) = 133/140

A = arccos(133/140) ≈ 18.2° ≈ 18°

5 0

3 years ago