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Nitella [24]
3 years ago
8

Please help asap due soon

Mathematics
1 answer:
vesna_86 [32]3 years ago
7 0
7x - 2y / 13y + 2x
x= 9
y= -1
Plug in x and y values into equation
7(9) - 2(-1) / 13(-1) + 2(9)
Solve
63 + 2 / -13 + 18
Simplify
65/5 = 13
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Use the equation to answer the questions. Round both answers to nearest whole number. Y = 47.25 − 2.25 X If Y equals 8 , what is
noname [10]

Answer:

If Y equals 8, X is equal to 17.

If Y drops to 4, X is equal to 19.

Step-by-step explanation:

We know that the equation is Y = 47.25- 2.25X and we want to find X when Y = 8. To do this we solve the equation for X.

47.25-2.25X=8\\47.25\cdot \:100-2.25X\cdot \:100=8\cdot \:100\\4725-225X=800\\4725-225X-4725=800-4725\\-225X=-3925\\\frac{-225X}{-225}=\frac{-3925}{-225}\\X=\frac{157}{9}=17.4444...

17.4444 rounded to the nearest whole number is 17.

If Y drops to 4,

4 = 47.25- 2.25X\\47.25-2.25X=4\\47.25\cdot \:100-2.25X\cdot \:100=4\cdot \:100\\4725-225X=400\\4725-225X-4725=400-4725\\-225X=-4325\\X=\frac{173}{9}=19.2222...

19.2222 rounded to the nearest whole number is 19.

5 0
4 years ago
Pleas help and only answer if you know it and put the number by which one you answer
MA_775_DIABLO [31]

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5 0
3 years ago
Subtract using a number line.
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4 0
3 years ago
Read 2 more answers
Convert into a mixed number 37/8=​
Brilliant_brown [7]

Answer: Here is a bundle of Examples! Hope this helps!

Step-by-step explanation:

As an improper fraction. (numerator larger than denominator): 37/8 = 37/8

As a mixed number (mixed fraction) (a whole number and a proper fraction, of the same sign): 37/8 = 4 5/8

As a decimal number: 37/8 ≈ 4.63.

As a percentage: 37/8 = 462.5%

4 0
4 years ago
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The value of y varies directly with x. When y=8.4, x=3.5, what is the value of y when x is 7.7?
sleet_krkn [62]

Answer:

y = 18.48

Step-by-step explanation:

y = kx where 'k' is the constant of variation

8.4 = 3.5k

k = 8.4/3.5 or 2.4

y = 2.4(7.7)

y = 18.48

3 0
3 years ago
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