Answer:
13
Step-by-step explanation:
I think maybe 3 6/97 but i'm not sure about that.
Let x = the amount of feet descended in 3 minutes (thus the total change of altitude of the balloon)
320 (feet per minute) / 1 (minute) = x (feet per minute) / 3 (minutes)
1) Divide: 320/1 = 320.
2) Multiply: 320 x 3= 960.
The balloon that descends at a rate of 320 feet/minute (so, every minute, it descends 320 feet) descends a total of 960 feet in 3 minutes.
The balloon's total change in altitude is -960<span>
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The answer is A: 7 cups/4.5 days.
You see, the unit rate for this would be 1 cup/~0.6 day, so C and D would be incorrect (31.5 is too high for 7). Then, if you read it, it's seven cups, not days.
So, A.
You can write an equation.
KL+LM=KM
Enter the info
x+.5+3x-2=3x+1.5
Combine like terms
4x-1.5=3x+1.5
Add 1.5 to both sides
4x-1.5+1.5=3x+1.5+1.5
4x=3x+3
Subtract 3x from both sides
4x-3x=3x+3-3x
x=3
Then, enter 3 into the expression to find LM
3x-2
3(3)-2
9-2
7
LM is worth 7.
I hope this helped!
