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4 years ago

Y=x-7 y=-2x+8 solve using substitution

1 answer:

4 0

Y = x-7
+7 +7
x = y+7
- - - -
y=-2x+8
y=-2(y+7) +8
y= -2y - 14 +8
+2y +2y
3y = -6
/3 /3
y = -2
- - - -
x = y+ 7
x = -2 +7
x = 5

(5, -2)

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4(-x+4) =12 solve for x

VashaNatasha [74]

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3 years ago

Simplify the given exponential expression.

Andrews [41]

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4 years ago

Read 2 more answers

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babunello [35]

Answer:

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3 years ago

Lucy is designing a new board game, and is trying to figure out all the possible outcomes. How many different possible outcomes

Nadusha1986 [10]

The total possible outcomes are there if she rolls a fair die in the shape of a pyramid that has four sides labeled 1 to 4, spins a spinner with 5 equal-sized sections is 20.

<h3>What is permutation and combination?</h3>

A permutation can be defined as the number of ways a set can be arranged, order matters but in combination the order does not matter.

We have:

Total number of outcomes for pyramid = 4

Total number of outcomes for spinner = 5

Total outcomes = 4×5 (multiplication rule of counting)

= 20

Thus, the total possible outcomes are there if she rolls a fair die in the shape of a pyramid that has four sides labeled 1 to 4, spins a spinner with 5 equal-sized sections is 20.

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brainly.com/question/2295036

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2 years ago

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