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Natalija [7]
3 years ago
9

PLS SOLVE THESE QUESTIONS WITH EXPLAINATION

Mathematics
1 answer:
Klio2033 [76]3 years ago
5 0

Answer:

a) 36

b) 20

c) 6

Step-by-step explanation:

Given Formula:

\frac{1}{2}(b x h)

Steps for A:

\frac{1}{2}(12 x 6)

12 x 6 = 72

72 ÷ 2 = 36

Steps for B:

\frac{1}{2}(10 x 4)

10 x 4 = 40

40 ÷ 2 = 20

Steps for C:

\frac{1}{2}(3 x 4)

3 x 4 = 12

12 ÷ 2 = 6

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The sum of twice a number and 13 is 75
Nina [5.8K]
So what they are saying is the sum of 2x +13=75
Therefore we can just solve for 2x, our unknown value.
2x+13=75 now subtract 13 and divide by 2 from both sides of equation to not change the equation
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This leaves us with
x=(75-13)/2=31 therefore x=31 or our unknown value is 31.

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3 years ago
What is the value of x in the equation <br><br> 2x=368-4
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Then divide 364 by 2

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