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Ivan
3 years ago
9

Need these in 10 mins: Solve by substitutions 1) X+Y=6 3x+2y=15 2 2x+Y=20 3) 6x-SY=r

Mathematics
1 answer:
Mrrafil [7]3 years ago
4 0
3 is the answer just had this on my quiz
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Three families went to Great adventure together. There were eight people altogether. Altogether they paid $224 while at the amus
Ad libitum [116K]

Answer:

$8 x 8 people = $64

$224 - $64 = $160 in admissions

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
david is buying a cheese wheel priced at $650 before tax. the store charges 8% sales tax. what is the total price including tax,
Marina CMI [18]
I think he pays $702.

Basically,

650 • .08 (move the decimal over two to the left, that’s what you get) = 52. Then I did 650 + 52 and got $702.
6 0
3 years ago
Hello i'll attached them Okay
Phantasy [73]
So megan is four years younger than her aunt

m+4=a
or
m=a-4
the sum of their ages is at least 40
m+a<u>></u>40
subsitute a-4 for m
a-4+a<u /><u>></u>40
combine like terms
2a-4<u>></u>40
the answer is the third from the top
3 0
4 years ago
2.4= -5y + 14.9. Solve for y​
Vladimir [108]

2.4=-5y+14.9

We move all terms to the left:

2.4-(-5y+14.9)=0

We get rid of parentheses

5y-14.9+2.4=0

We add all the numbers together, and all the variables

5y-12.5=0

We move all terms containing y to the left, all other terms to the right

5y=12.5

y=12.5/5

y=2+2.5/5

Y=2.5
7 0
3 years ago
What is the equation of a hyperbola with a = 6 and c =9? Assume that the transverse axis is horizontal.
Alekssandra [29.7K]
Solve for b 
<span>b² =81-36=45 </span>

<span>x²/a² - y²/b² =1 </span>
<span>plug in and choose</span>
5 0
3 years ago
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