Represent
d=number of dimes
q=number of quarters
thererfor
q+d=23
1q=0.25
1d=0.10
therefor
total value=3.35=0.25q+0.1d
so we have
q+d=23
0.25q+0.1d=3.35
solve
q+d=23
subtract q from both sides
d=23-q
subsitute
0.25q+0.1(23-q)=3.35
distribute
0.25q+2.3-0.1q=3.35
group like terms
0.25q-0.1q+2.3=3.35
add like terms
0.15q+2.3=3.35
subtract 2.3 from both sides
0.15q=1.05
multipliy both sides by 100 to get rid of decimal
15q=105
divide both sides by 15
q=7
subsitute
q+d=23
7+d=23
subtract 7
d=16
7 quarters
16 dimes
It would be D, because you just add 9 plus 1, which would be 10, and since it says probability of drawing a blue marble followed by a green, there are only 9 blue marbles
If the roots are r1 and r2 then the factored form is 0=a(x-r1)(x-r2)
whwere a is a constant
I don't like fractions so a=3 for now
0=3(x-4/3)(x-4)
0=3(x^2-4/3x-4x+16/3)
0=3x^2-4x-12x+16
0=3x^2-16x+16
Write in slope-intercept first.
Find the y-intercept.
y = -2x + b
3 = -2(4) + b
3 = -8 + b
3 + 8 = -8 + b + 8
11 = b
Now, write in slope-intercept form.
y = -2x + 11
Now, solve for standard form.
y - 11 = -2x + 11 - 11
y - 11 = 2x
y + (-11) - y = -2x - y
-11 = -2x - y
-2x - y = -11 (Answer)
Hope This Helped! Good Luck!
