Y=x^2+3x+4
y-x=7
x^2+3x+4-x=7
x^2+2x+4=7
(factor) x^2+2x-3=0
(x+3)(x-1)=0
X= -3 and X=1
(Plug x in for y)
Y= 1^2+3(1)+4
Y=8
(Check your answer on the second equation)
8-1=7
7=7 (Which is the solution)
Answer:
4.896 meters
Step-by-step explanation:
"scale model" means that the original is shrunk or grown by some factor. So say we have a triangle with side lengths 5, 4 and 3. We could "scale" it by multiplying or dividing all three numbers by another number. So we could make it twice as big so the sides will be 10, 8 and 6 or cut it in half s the sides are 5/2, 2 and 3/2. We could also make it 48 times larger by multiplying everything by 48, so the sides would be 240, 192, 144.
That's what happened here. The original was shrunk by a scale factor of 48. or you could think of it as making the scale model grow by 48 times. So the height times 48 is the height of the real thing. You are also going to want to convert from millimeters to meters.
so 102*48= 4896 millimeters. Now we convert that into meters and we get 4.896 meters. let me know if you need any further explanation.
Let A be the number of Adult tickets and S, the Students'
A+ S = 273, but we know that S=2.A
Then A + 2A = 273 ; 3A =273; A =273/3 =91
So 91 tickets were sod to Adults & 182 Tickets to Students
Answer:
90- 54w
Step-by-step explanation:
First, distribute multiply 18×5 which is 90.
Then, 18×3w which is 54 and bring the w with it.
Hope this helps :)
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