Answer:
- large: 18.5 kg
- small: 15.75 kg
Step-by-step explanation:
Let b and s represent the weights of the big and small boxes, respectively. Then the two delivered weights can be summarized as ...
5b +6s = 187
3b +2s = 87
We can eliminate the "s" variable by subtracting the first equation from 3 times the second:
3(3b +2s) -(5b +6s) = 3(87) -(187)
4b = 74 . . . . . collect terms
b = 18.5 . . . . . divide by 4
Using this value in the second equation, we find ...
3(18.5) +2s = 87
2s = 31.5 . . . . . . . . subtract 55.5
s = 15.75 . . . . . . . . divide by 2
The large box weighs 18.5 kg; the small box weighs 15.75 kg.
Answer:
7/12 7/10 7/9 7/8
Step-by-step explanation
The bigger the denominator is, the smaller the number is
Answer:
Rational because it is a decimal that can be seen as a fraction.
Step-by-step explanation:
−4.5(x−8.9)=12.6
Simplify:
−4.5x+40.05=12.6
Step 2: Subtract 40.05 from both sides.
−4.5x+40.05−40.05=12.6−40.05
−4.5x=−27.45
Step 3: Divide both sides by -4.5.
−4.5x
−4.5
=
−27.45
−4.5
x=6.1
Answer:
x=6.1
Answer:
B
Step-by-step explanation:
The answer is B branlist???
