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andreyandreev [35.5K]
4 years ago
15

Korina uses 8.3 pints of blue paint and white paint to paint her bedroom walls. 3/4 of the amount is blue paint, and the rest is

white paint. How many pints of white paint did she use to paint her bedroom walls?
Mathematics
1 answer:
xz_007 [3.2K]4 years ago
4 0

Answer: HOPE THIS HELPED! ;D :P

2.075 white paint

Step-by-step explanation:

8.3 x 3/4 = 6.225 blue paint

8.3 - 6.225 = 2.075 white paint

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What is the value of x in the equation (-35)X = 1? Explain.
Ipatiy [6.2K]

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5 0
3 years ago
What is 3x * -x yefowe
-BARSIC- [3]

Answer:

-3x^{2}

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-x= -1x. (The 1 is invisible)

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You still have both of the x's.

All you do is add them. 1+1=2

So, your exponent is going to be 2 with x attached

***When you are multiplying and you have the same exponent, add them. Pretend that you see the exponent 1 by the x (x^{1}) now since you have 2 (x^{1} +x^{1}) which equals (x^{2})

Looks Like:

3x* -x

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Hope this helped :)

6 0
3 years ago
The parabola y=ax^2+bx-10 passes through the points (4.5,8) and (-2.5, 15). Determine the values of a and b
yuradex [85]
y=ax^2+bx-10 \\ \\
(4.5,8) \\
8=a \times 4.5^2 + b \times 4.5-10 \\
8=20.25a+4.5b-10 \ \ \ |+10 \\
18=20.25a+4.5b \\ \\
(-2.5,15) \\
15=a \times (-2.5)^2+b \times (-2.5)-10 \\
15=6.25a-2.5b-10 \ \ \ |+10 \\
25=6.25a-2.5b

The system of equations:
18=20.25a+4.5b \ \ \ |\times 5 \\
25=6.25a-2.5b \ \ \ |\times 9 \\ \\
90=101.25a+22.5b \\
\underline{225=56.25a-22.5b} \\
90+225=101.25a+56.25a \\
315=157.5a \ \ \ |\div 157.5 \\
a=2 \\ \\
25=6.25a-2.5b \\
25=6.25 \times 2-2.5b \\
25=12.5 -2.5b \ \ \ |-12.5 \\
12.5=-2.5b \ \ \ |\div (-2.5) \\
b=-5 \\ \\
\boxed{a=2} \\ \boxed{b=-5} \\ \boxed{y=2x^2-5x-10}
6 0
4 years ago
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