Answer:
3
Step-by-step explanation:
Choose a variable to represent the number to be added to 5 and 3.
"Cross-multiply."
Check: The ratio of 5+3 to 3 + 3 is 8:6, equal to the ratio 4:3.
Answer:it ends at 11:00
Step-by-step explanation:8:30+2:30=11:00
Answer:
3
Step-by-step explanation:
Average = total sum of all numbers/number of items in set
Average = 18/6
Average = 3
Answer:
x = 10
y = 40
Step-by-step explanation:
60° + (2x + 7y)° = 180° because these two angles are supplementary
So 2x + y would be equal to 60°
60° + (2x + 7y)° = 180° subtract 60 from both sides
2x + 7y = 120 and
2x + y = 60 multiply second equation by -1 and it will be -2x -y = -60 now add it to first equation
2x + 7y -2x - y = 120 - 60 -2x will eliminate 2x
6y = 60 divide both sides by 6
x = 10
if 2x + y = 60 the we need to replace x with the value we found
2×10 + y = 60
y = 40
Answer:
m = -5
Step-by-step explanation:
1/5 m = -1
Multiply each side by 5
5*1/5 m = -1*5
m = -5
