Answer:
I am not sure how your teacher wanted you to estimate the answer but I solved it for you. Hopefully this helps.
Step-by-step explanation:
7x-y=7
x+2y=6
14x-2y=14
x+2y=6
add both equations
15x=20
x=20/15
x=4/3
x+2y=6
4/3+2y=6
2y=6-4/3
2y=18/3 -4/3
2y=14/3
divide both sides by 2
y= 14/3 divided by 2
y=14/3(1/2)
y=14/6
2y=
60/2 equals 30 then 30x4 is 120. Is parents give him a 120$
Answer:
Step-by-step explanation:
<u>Which number is the largest? </u>
- 1.2 × 10^4
- 4.5 × 10^-3
- 3.8 × 10^3
- 7.5 × 10^3
The first one is the largest as it has the greatest power
Answer:
the second one because 3 divided by 1.5 is 2 then it's right
