Answer:
970,000.1
Step-by-step explanation:
No, because it is not a straight line
8x + 42 = 90
8x = 90 - 42 = 48
x = 48/8 = 6 answer
You could buy 9 pounds without exceeding your 18 dollar limit. You would solve it buy dividing the 18 by 2 to get your answer
Answer:
x=15
Step-by-step explanation:
This is a simultaneous equation
2x-3y=45 ------------------------------ equation i
x+y=10 -------------------------------equation ii
from equation ii
x+y=10
make x the subject of the matter
we have,
x=10-y
in equation i
substitute x for 10-y
2x-3y=45----------------------i
since x=10-y
we have,
2(10-y) - 3y=45
20-2y=3y=45
collect like terms
-2y-3y=45-20
-5y=25
divide both sides by -5
we have y=-5
substitute y for-5 in equation i
x+y=10
x+-5=10
collect like terms
x=10+5
x=15
therefore
x=15
