3/5 are girls and 2/5 are boys
-> chance of 2/5 to select a boy randomly
Answer:
280 miles
Step-by-step explanation:
in one hour, you would travel 70 miles because you are going at the speed of 70mph
so to find out how far you go in 4 hours you would multiply 70(mph)×4(hrs) which would be?
280 miles
The given equations is: a=b+4
Given the following clues:
a=24+4 --- 28
a=32+4 --- 36
a= 40+4 --- 44
Answer:
To solve this we need to form 2 equations with only 2 variables.
x+4y-5z=-7
2x+y+5z=8
3x+5y=1
15x+10y+15z=35
6x+3y+15z=24
9x+7y=11
Now we need to use these to find x and y
9x+15y=3
9x+7y=11
8y=-8
y=-1
Therefore:
x=2
From this we can find that:
2(2)-1+5z=8
Therefore z=1
The answer is x=2, y=-1, z=1
Answer:
-5 and +5
Step-by-step explanation:
add twelve to both sides
New equations: 2x= -+10
Divide by 2 on both sides
x=-5, +5