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Angelina_Jolie [31]
3 years ago
5

Please help me Excellent help needed

Mathematics
2 answers:
Gelneren [198K]3 years ago
5 0

Answer:

All of the following have the same solution except b + 2 = 8

Marianna [84]3 years ago
3 0

Answer:

the answer is D.

Step-by-step explanation:

A.   50 = 5 m = 10=m

B.    x-6=4 = x=10

C.   w/5=2 = w=15

<u>D</u>. b+2=8 = b=6

<u>hope this helps and feel free to give brainiest</u>

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Answer:

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What is the probability that a number selected is at random from the numbers 1- 15 is a prime number?
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Suppose y varies inversely with X, and y = 48 when x = 3. What is the value of x when y = 24?
olganol [36]

Answer:

C. 6

Step-by-step explanation:

Recall that inverse variation is given by:

\displaystyle y=\frac{k}{x}

Where <em>k</em> is the constant of variation.

We know that <em>y</em> = 48 when <em>x</em> = 3. Substitute:

\displaystyle (48)=\frac{k}{(3)}

Solve for <em>k: </em>

<em />k=3(48)=144<em />

<em />

Hence, our equation is:

\displaystyle y=\frac{144}{x}

We want to find <em>x</em> when <em>y</em> = 24. Substitute:

\displaystyle \frac{24}{1}=\frac{144}{x}

Cross-multiply:

24x=144

Divide both sides by 24. Hence:

x=6

Our answer is C.

3 0
3 years ago
Cheyenne ran a 6.36-kilometer race in 53 minutes. What was her speed in kilometers per hour?
svlad2 [7]

Answer:

7.23km/h

Step-by-step explanation:

Speed = distance/time

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distance = 6.36km and

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Convert 53minutes to hour.

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Cross multiply

X hour x 60 = 53

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X = 0.88 hour

Therefore

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3 years ago
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