Answer:
Step-by-step explanation:
Let the length and breadth of the rectangle be a,b units respectively.
Then the area will be ab square units.
Now if the length of the rectangle is reduced by 5 units and breadth is increased by 2 units then new length and breadth will be (a−5) units and (b+2) units.
Then new area will be (a−5)(b+2).
Then according to the problem,
(a−5)(b+2)−ab=−80
or, 2a−5b=−70.......(1).
Now if length of the rectangle is increased by 10 units and breadth is decreased by 5 units then new length and breadth will be (a+10) units and (b−5) units.
Then new area will be (a+10)(b−5).
Then according to the problem,
(a+10)(b−5)−ab=50
or, 10b−5a=100
or, 2b−a=20
or, 4b−2a=40......(2).
Now adding (1) and (2) we get
−b=−30
or, b=30.
Putting the value of b in (1) we get, a=40.
Now a+b=40+30=70.
Answer:
The answer to your question is Marissa = 6, Trevor = 16
Step-by-step explanation:
Data
total number of t-shirts = 26
Marissa has 6 fewer than trevor
Process
1.- Write equations to solve this problem
Marissa = m
Trevor = t
m + t = 26 Equation l
m = t - 6 Equation ll
- Substitute equation ll in equation l
(t - 6) + t = 26
-Simplify
t - 6 + t = 26
2t = 26 + 6
2t = 32
t = 32/2
t = 16
- Find m
m = 16 - 6
m = 10
-Conclusion
Trevor has 16 t-shirts and Marissa has 10 t-shirts.
Answer:
true is the answer
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Answer:
19.63 m^2
Step-by-step explanation:
This is an Area=pi r^2 equation so it would be 3.14*2.5^2
Answer:
0.30%
Step-by-step explanation: