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Vinvika [58]
3 years ago
5

Evaluate the expression 1/2x - 2/3y when x = 4 and y = -3

Mathematics
2 answers:
irinina [24]3 years ago
6 0

Answer:

You just substitute the values of x=4 and y=-3 into the given equation and then answer.

Step-by-step explanation:

\frac{1}{2}  \times (4) - \frac{2}{3} \times  ( - 3)

\frac{1}{2}  \times  \frac{4}{1}  -  \frac{2}{3}  \times  -  \frac{3}{1}

2 - ( - 2)

4

so your answer is 4.

ollegr [7]3 years ago
3 0

Answer:

-1

Step-by-step explanation:

Equation: 1/2x-2/3y

Swap out the x and y with the numbers.

1/2 x 4/1 -2/3 x -3

Solve.

2-3

-1

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Two triangles: left triangle with y degrees and 40 degrees and right triangle with x degrees.

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1) Subtract 180 - 40 = 140 degrees. 140 degrees is the unknown angle of right triangle.

2) 140 + x + x = 180 (equation)

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ANSWER: x = 20 DEGREES

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1) With knowledge of x degrees being 20 degrees, the other same angle is 20 degrees, too.

2) Subtract 90 - 20 = 70 degrees. 70 degrees is the (third) undetermined angle

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Whew. Hope this helps you out, and let me know asap if you're confused on any part.

6 0
3 years ago
Murals in a school are painted by its grade 6 and grade 7 students.
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Answer:

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Step-by-step explanation:

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3 years ago
In 4 rounds of a card game, you get scores -1, -4, -8, and 10. what is your final score?
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3 years ago
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