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KiRa [710]
2 years ago
11

Help! Please!!! I seriously need this!!!!!

Mathematics
1 answer:
Kitty [74]2 years ago
3 0

Answer:

it's related by product of 5/3 and directly proportional

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If there are 5 black people and u add 7 more how many would there be?
Sloan [31]

Answer:

12

Step-by-step explanation:

7 0
3 years ago
Jane spent 3 hours exploring a mountain with a dirt bike. First, she rode 55 miles uphill. After she reached the peak she rode f
Neko [114]

Answer:

Her speed on the summit was 35 mph.

Step-by-step explanation:

Her speed on the summit was "x" mph while her speed while climbing was "x - 10" mph. The distance she rode uphill was 55 miles and on the summit it was 28 miles. The total time she explored the mountain was 3 hours. Therefore:

time uphill = distance uphill / speed uphill = 55 / (x - 10)

time summit = distance summit / speed summit = 28 / x

total time = time uphill + time summit

3 = [55 / (x - 10)] + 28 / x

3 = [55*x + 28*(x - 10)]/[x*(x - 10)]

3*x*(x - 10) = 55*x + 28*x - 280

3x² - 30*x = 83*x - 280

3x²  - 113*x + 280 = 0

x1 = {-(-113) + sqrt[(-113)² - 4*(3)*(280)]}/(2*3) = 35 mph

x2 = {-(-113) - sqrt[(-113)² - 4*(3)*(280)]}/(2*3) = 2.67 mph

Since her speed on the uphill couldn't be negative the speed on the summit can only be 35 mph.

6 0
3 years ago
Find the value of x.<br> A.70<br> B.54<br> C.40<br> D.74
Nuetrik [128]

Answer:

a is the value of X

Step-by-step explanation:

8 0
3 years ago
Please Help!!! I NEED THIS ASAP
Oksi-84 [34.3K]

person is si mis iosnmasabgoiuwgaufgafuawf

4 0
3 years ago
Please help i’m blanking lol
tangare [24]

Answer:

The answer is the graph D

Step-by-step explanation:

The inequation states that:

abs(x) >3.

By definition, the absolute value | x | is the distance of x from zero. In this case: | x | > 3 The solution is going to be all the points that are greater than three units away from zero.

For that reason the solution is -3>x>3. That is to say, all values greater than 3 or less than -3 are solutions.

5 0
3 years ago
Read 2 more answers
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