Answer:
Step-by-step explanation:
when x = 7 and y = - 2
3x + 4y
= 3 * 7 + 4 * (-2)
= 21 - 8
= 13
Hope it helps :)
Answer:
Property : a^-b = 1/a^b
Using this property, we can rewrite the expression using positive exponents :

Answer:
5.94
Step-by-step explanation:
Multiply 2.75 by $0.76 to get $2.09
Multiply 2.75 by $1.40 to get $3.85
Add $3.85 and $2.09 to get $5.94
Answer:
The train travels 0.25 miles per gallon, the slope is 200/50 or 4/1
Step-by-step explanation:
We get this answer by dividing 50 miles by 200 gallons, allowing us to receive the ratio of 0.25 miles per gallon.
The slope is a representation of that ratio, as concluded from the graph
Hope this helps!
Answer:
1. 32
2. 4.7
3. 3
Step-by-step explanation:
4*8=32
6.5-1.8= 4.7
18/6=3 or 18 divided by 6 = 3