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balu736 [363]
3 years ago
6

5-1 3/4-1 1/3 with workouts​

Mathematics
1 answer:
Neko [114]3 years ago
4 0

Answer:

9

Step-by-step explanation:

3

– × 12 = (3 × 12) ÷ 4 = 36 ÷ 4 = 9

4

Exercise: fractions

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39. Solve this system: 3x+y=-7 . 4x-y=14A. (–1, 10)B. (1, –10)C. (–1, –10)D. no solution
valkas [14]

Given,

The linear pair of the equation is,

\begin{gathered} 3x+y=-7 \\ 4x-y=14 \end{gathered}

Required

The solution of the linear equation.

Taking the equation first as,

\begin{gathered} 3x+y=-7 \\ y=-7-3x \end{gathered}

Substituting the value of y in second equation then,

\begin{gathered} 4x-y=14 \\ 4x+7+3x=14 \\ 7x+7=14 \\ 7x=7 \\ x=1 \end{gathered}

Substituting the value of x in first equation then,

\begin{gathered} 3x+y=-7 \\ 3(1)+y=-7 \\ y=-7-3 \\ y=-10 \end{gathered}

Hence, the solution of the system is (1, -10).

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1 year ago
Can someone explain how to solve and find x on the triangle
Romashka [77]

Step-by-step explanation:

sum of all the angles in a triangle is equal to 180°

82 + 70 + (2x + 4) = 180

152 + 2x + 4 = 180

156 + 2x = 180

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Plan A has a fee of $50 plus an additional fee of $0.05 per minute. With this plan, the first 500 minutes are free.
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