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kirill [66]
3 years ago
8

Helllllllllpppppppp!!!!!

Mathematics
1 answer:
muminat3 years ago
6 0

Answer:

X=10

A=84

Step-by-step explanation:

5x+34+2x+76=180

7x+110=180

7x=70

x=10

For A

5(10)+34

84

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In one day, 125,683 people fly in and out of an airport in Texas. How many thousands of people fly in and out that day?
satela [25.4K]
125 would be the correct answer unless you needed to round then it would be 126
8 0
4 years ago
Read 2 more answers
Minimize Q=3x2+3y2​, where x+y=6.
weeeeeb [17]

Answer:

+(x + y) {}^{2}  = 6 {}^{2} \\ x {}^{2} + 2xy + y {?}^{2}  = 36

x {}^{2}  + y {}^{2}  = 36 - 2xy

q = 3(x {}^{2}  + y {}^{2} )

q = 3(36 - 2xy) = 108 - 6xy

5 0
3 years ago
Expand and simplify (x-3)(x+5)​
Tom [10]

Answer: x² + 2x - 15

Step-by-step explanation:

<u>Concept:</u>

When we encounter questions that ask us to simplify expressions that consist of multiple parentheses, it is suggested to use the FOIL method to ease the process.

  • First
  • Outer
  • Inner
  • Last

<u>Solve:</u>

Given

(x - 3) (x + 5)

Expand parentheses

x² + 5x - 3x - 15

Combine like terms

x² + (5x - 3x) - 15

x² + 2x - 15

Hope this helps!! :)

Please let me know if you have any questions

6 0
3 years ago
In science class, Paul estimates the volume of a sample to be 37 mL. The actual volume of the sample is 39 mL. Find the percent
svet-max [94.6K]

Answer:

the answer is 5.1%

Step-by-step explanation:

first you divide 37 by 39 to get .94871795

next you would subtract 1 by that number and you get

.05128205 which can be rounded to .051 or 5.1%

7 0
3 years ago
What is the slope of a line passing through (-4,-5)<br> and (-2,-9)?
Lostsunrise [7]
Gradient
= (y2-y1)/(x2-x1)
= (-9-(-5))(-2-(-4))
= (-4)(2)
= -8
4 0
2 years ago
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