Answer:
Please see attached images for solution.
Step-by-step explanation:
Since this is a system of equations, substitute the value of x into the other equation.
2(3y)+2y=24
6y+2y=24
8y=24
y=3
x=3(3)
x=9
To check my work, substitute my x and y values:
2(9)+2(3)=24
18+6=24
24=24
Your answer is (3,9)
Hope this helps! Have a wonderful day :)
2/3in=9mi
?in=21mi
we can set up a ratio and proportion, but I would fix that fractions because they tend to be messy
2/3in=9mi
multiply both sides by 3
2in=27mi
so now we have
2in:28mi=?in:21mi

multiply both sides by 21mi
the miles cancel and we get

1.5in=?in
1.5 inches represents 21 miles
9 x 5 = 45 and 9 x 50 = 450
Answer:
b
Step-by-step explanation:
Given y = x² then y = x² + c is a vertical translation of y = x²
• If c > 0 then a shift up of c units
• If c < 0 then a shift down of c units
Here c = - 12 < 0
Thus y = x² - 12 is the graph of y = x² shifted 12 units down → b