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ozzi
3 years ago
8

9x -1 = 80 A -10 B 9 C 10 D -9

Mathematics
1 answer:
Fittoniya [83]3 years ago
5 0

Answer:

The answer is B!

Step-by-step explanation:

Add 1 to both sides, then divide 80 by 9!

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Marizza181 [45]

Answer:

50-2.5t=w. no, the water will all have drained by then.

Step-by-step explanation:

2.5 per min so

min=t

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part 2,

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3 years ago
Which of the following functions is graphed below?
alexandr1967 [171]

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2 years ago
Use cross multiplication to solve the equation
Charra [1.4K]

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3 years ago
Hans's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Hans
Tanya [424]
He used 53 pounds. I got this by using two equations.
a+b=117
and
5.8a+4.1b= 569.8

I took the first equation and subtracted 'b' so the equation looked like a=117-b.
I then plugged in 117-b into the second equation, so it ended up looking like this:
5.8 (117-b)=569.8
5.8 times 117 is 678.6. And 5.8 times negative b is negative 5.8b.
The equation now looks like this:
678.6-5.8b+4.1b=569.8
Add like terms
678.6-1.7b=569.8
Then subtract 678.6 from both sides
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divide each side by -1.7
you get b= 64.
But because you are looking for how many pounds for a, subtract 64 from 117. You get 53. 53 is the answer.
3 0
3 years ago
Help fast please !!!!!!!!!!!
Harman [31]

Answer:

66 degrees

Step-by-step explanation:

angle WOX is congruent and vertical with angle YOZ

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