To get the answer you would do 377÷58 which would give you 6.5, that means that going to the beach is 6 hours and 30 minutes. For going home from the beach you would do 377÷65 which would give you 5.8 which means 5 hours and 48 minutes. Every 0.1 is 6 minutes while every 1.0 is an hour. To get to your final answer, you would add together 6 hours & 30 minutes with 5 hours & 48 minutes which would give you 12 hours and 18 minutes since there is 60 minutes in an hour, 48+30=78
It’s more likely to be C or D
Answer:
x=0.5 and y=5
Step-by-step explanation:
8x+7y=39...eqn(1)×-14
4x-14y=-68...eqn(2)×7
we now have,
-112x-98y=-546
-(28x-98y=-476)
-140x÷-140 =-70÷-140
x=0.5
to solve for y, we substitute (x=0.5) into eqn (1) or eqn 2 which ever you want...
so I'm using eqn 1.
8x+7y=39
8(0.5)+7y=39
7y=39-4
7y÷7=35÷7
y=5
therefore, x=0.5, y=5
proof: substitute both x and y values to get you the same answer as the original solutions in both equations.
we have,
8(0.5)+7(5)=39
4(0.5)-14(5)=-68
Any equation that has the same slope is parallel. So just find the equation with a -4x
Answer:
12/5 is 2.4 so
9 girls I think.
Step-by-step explanation:
