Answer:
(3, 2)
Step-by-step explanation:
3x-y=7
2x-2y=2
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y=3x-7
substitute this equation to 2x-2y=2
first, simplify 2x-2y=2 into x-y=1.
-----------------------------------------------------
x-(3x-7)=1
x-3x+7=1
-2x+7=1
-2x=1-7
-2x=-6
x=-6/-2=3
y=3(3)-7=9-7=2
Answer: x=3, y=2.
Answer:
1 hour and 30 minutes
Step-by-step explanation:
There is 1 hour between 4 and 5
30 minutes between 15 and 45
Answer:
$1,221
Step-by-step explanation:
0.11×$1,100=$121
$121+ $1100= $1221
Answer:
450 feet
Step-by-step explanation:
60ft = 4 seconds
x ft = 30 seconds
(cross multiply)
60 * 30 = 4x
1800= 4x
(divide both sides by 4)
x= 1800/4= 450
Answer:
12 months time
Step-by-step explanation:
To find this, we simply find the lowest common multiple of the two months
Mathematically, we have the lowest common multiple of 4 and 6 as 12
Thus, the time they would have the appointment together is the simply 12 months
