Answer:
D
Step-by-step explanation:
N=number of nickles
d=number of dimes
n is 2 times d
n=2d
total money is 1.20
convert to cens
120 cetns
5n+10d=120
n=2d
5(2d)+10d=120
10d+10d=120
20d=120
divide both sides by 120
d=6
6 dimes is answer
answer is A, 6 dimes
A)
y = mx + c
<span>y = 1x + 3
</span>
<span>y = x + 3
</span>
b)
y = 2x ? 5 comparing to y = mx + c, slope = m
slope = 2.
But for a perpendicular line, we take the negative reciprocal,
= -1/2 = -1/2
Let 'c' represent the number of points Carlos scored.
2c - 7 = 31
c = 19 points
10(4^2-(9)
Since 16-9 is 7
And 10 times 7 is 70
