What do you need help with
Answer:
Infinitely many
Step-by-step explanation:
If we multiply the equation x-3y=7 by 3, we get 3x-9y=21, which is also the second equation. That means the two lines are on top of each other, meaning infinite many solutions.
Answer:
Step-by-step explanation:
let the number of dimes=x
and number of quarters=y
x=2y
0.10 x+0.25 y=2.25
or 10x+25y=225
divide by 5
2x+5y=45
2 ×2y+5y=45
4y+5y=45
9y=45
y=45/9=5
x=2y=2×5=10
Hence dimes=10
quarters=5
Answer:
d = 8.062258
Step-by-step explanation:
=(−8−(−1))2+(4−0)2‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾√
=(−7)2+(4)2‾‾‾‾‾‾‾‾‾‾‾‾√
=49+16‾‾‾‾‾‾‾√
=6‾√5
=8.062258
Answer: 78
Step-by-step explanation:
![[(12+3)\times5]+3\\(15\times5)+3\\75+3\\\implies\boxed{78}](https://tex.z-dn.net/?f=%5B%2812%2B3%29%5Ctimes5%5D%2B3%5C%5C%2815%5Ctimes5%29%2B3%5C%5C75%2B3%5C%5C%5Cimplies%5Cboxed%7B78%7D)
