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Maslowich
3 years ago
9

If x varies directly as y, find x when y=8. x=11 when y=-3

Mathematics
1 answer:
andriy [413]3 years ago
8 0

Answer:

x=-\frac{88}{3}

Step-by-step explanation:

When a quantity "A" varies DIRECTLY with another quantity "B", we can write the proportionality equation as:

A = kB

Where k is the proportionality constant (to be found)

In this problem, it is given x varies DIRECTLY with y, so we can write:

x = ky

Also, given, x = 11, y = -3, so we plug these into the equation and first find k:

x = ky

11 = k(-3)

k = -11/3

Now, we need to find x when y = 8, so we substitute and find x:

x=ky\\x=(-\frac{11}{3})(8)\\x=-\frac{88}{3}

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Answer:

yes at an average of 150 pizzas a day they both sell about the same by the end of the week

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3 years ago
Can someone please help me with this .
schepotkina [342]
- 3x + 4y = - 11
y = 2x - 4

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y = 2x - 4
y = 2(1) - 4
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Quiz 4: Solving Inequalities
san4es73 [151]

Answer:

15x+60\leq 100

Step-by-step explanation:

Let

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The inequality that represented this situation is equal to

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3 0
3 years ago
Elizabeth brought a box of donuts to share. There are two-dozen (24) donuts in the box, all identical in size, shape, and color.
pashok25 [27]

The probability of selecting two jelly-filled donuts in a row is 1/ 22

<h3>What is probability?</h3>

Probability is simply the chance that a given event will occur.

It is also the ratio of the number of outcomes in a set of equally likely outcomes that produce a given event to the total number of possible outcomes.

From the information given, we have that the donuts are:

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Thus, the probability of selecting two jelly-filled donuts in a row is 1/ 22

Learn more about probability here:

brainly.com/question/24756209

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