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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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Reduce 4/36 to simplest terms
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Answer: its 1/9

All you do is divide them by 4

4 divided by 4=1

36 divided by 4=9

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2 years ago
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Type SSS, SAS, ASA, SAA, or HL to<br> describe these triangles.
Bingel [31]

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SAS

Step-by-step explanation:

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5 0
2 years ago
what are two practical products you could add to find 990 x 37 ; 297 693 2970 6930 69300 6330 29700
VMariaS [17]
First evaluate 990 x 37.
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Test the given numbers to find the pair that adds up to 36630.
Test 297.
The missing pair will be
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Test 693.
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Will not work

Test 2970.
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Test 6930
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Answer: 6930 and 29700.


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3 years ago
When a variable are immediately next to each other with no symbol between them, what operation is implied
DIA [1.3K]

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3 years ago
I wasn't in class so I need help solving the inequality 7/10n+14&lt;49
NikAS [45]

Answer:

n<50

Step-by-step explanation:

7/2*5n + 14<49

7n/2*5+14<49

(7n)+(2*5)14/2*5 <49

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7n+140/10 <49

7n+140 < 10*49

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8 0
2 years ago
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