Step-by-step explanation:
Let
b=number of two storey houses,
t=number of three storey houses,
the total number of stories on Algebra Avenue is 95 more than the total number of houses on Algebra Avenue.
2b+3t-95=b+t =>
b+2t=95 .................(1)
The number of two-story houses is three times greater than the number of three-story houses.
b=3t .....................(2)
Substitute (2) in (1)
3t+2t = 95
5t=95
t=19 ......................(3)
substitute (3) in (2)
b=3t=3*19 = 57 .........(4)
Substitute (3) & (4) in (1)
b+2t=57+2*19=95 checks
Substitute (3) & (4) in (2)
b=3t=3*19=57 checks.
Answer:
D
Step-by-step explanation:
m + 9 can be +ve or -ve or 0.
m can be any number, even lesser than -9 to make it +ve. [-10+9 = -1 = -ve no.]
Or, maybe greater than -9 to make m+9 +ve. [-8 + 9 = 1 = +ve no.]
Or, maybe -9 only so that m+9 is 0
[ -9 + 9 = 0 ]
It can be -ve, +ve and 0 as well.
Fractions are used for dividing things into equal portions.
Answer:
All of the following have the same value except <u>6-9.</u>
Step-by-step explanation:
9+(-6)=POSITIVE 3
9-6=POSITIVE 3
-6-(-9)=POSITIVE 3
6-9=NEGATIVE 3
Hope this Helps
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