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gayaneshka [121]
2 years ago
14

Kiemanh is solving the equation 15 r minus 6 r = 36. What is the value of r? 2 4 15 27

Mathematics
2 answers:
jasenka [17]2 years ago
7 0

Answer:

B

Step-by-step explanation:

Alexus [3.1K]2 years ago
5 0

Answer:

the actual answer is B.) 4

Step-by-step explanation:

just took the topic test

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Which ordered pair is the best estimate for the solution of the system of equations? y=−2/5x−2y=5x+1
lutik1710 [3]

Option a: (-0.5,-1.75) is the solution to the system of equations.

Explanation:

The equations are y=-\frac{2}{5} x-2 and y=5 x+1

Equating these two equations, we have,

-\frac{2}{5} x-2=5 x+1

Taking LCM and multiplying both sides by 5, we get,

-2 x-10=25 x+5

Simplifying , we get,

\begin{aligned}-10-5 &=25 x+2 \\-15 &=27 x \\-\frac{15}{27} &=x \\-\frac{5}{9}  &=x\end{aligned}

Substituting the value of x in y=5 x+1, we get,

\begin{aligned}&y=5\left(-\frac{5}{9}\right)+1\\&y=-\frac{25}{9}+1\\&y=-\frac{16}{9}\end{aligned}

Thus, the solution is \left(-\frac{5}{9},-\frac{16}{9}\right)

Changing the solution from fraction to decimal, we get, (-0.556,-1.778)

Thus, the solution is (-0.5,-1.75)

Hence, option a is the correct answer.

4 0
2 years ago
Solve for x in the diagram below.
Hunter-Best [27]

Answer:

X=157.5

Step-by-step explanation:

Not sure this is correct but, what i did was 365-45=315/2=15.7

I dearly hopes this helps you out...

8 0
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Find the three arithmetic means between 24 and 72
sleet_krkn [62]
The answer is 48 because (24 +72)/2 =48
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3 years ago
5. Which statement is NOT TRUE about the function: y = -3x + 14 a. The Slope = -3 and the y-intercept = 14 b. A solution to this
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Answer:

B

Step-by-step explanation:

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2 years ago
20. A store offers a discount of 10% to customers
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The answer is C. $72
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