The task can be expressed in a following equation:
120%*a=80%*b
1.20a=0.80b
1.2a=0.8b
12a=8b
3a=2b
1) in terms of a:
3a=2b
b=3a/2=1.5a
a+b=a+1.5a
=2.5a
2) in terms of b:
3a=2b
a=2/3b
a+b=2/3b+b=
They travel to school by picking the amount of conductions associated with the classmates. They travel with their belongings and bring them with them as they transport to their location (school). Once they get to school than they must place their belongings. The population is associated with global and significance. They will then conduct and the math teachers wont be worried.
(Brainliest will be appreciated) Thanks
Answer:
23 and 33
Step-by-step explanation:
23+33=56
33-23=10
Answer:
The answer is 4r² – 9
Denise answer is correct.
Step-by-step explanation:
One of the methods of solving the given equation [(2r – 3)(2r + 3)] is the FOIL method
Using the FOIL method (Used for multiplying binomials)
F stands for first
O stands for outer
I stands for inner
L stands for last
In this method, it means we will first multiply the first terms followed by multiplying the outer term, then multiplying the inner terms and finally, the last terms.
So, for the equation (2r – 3)(2r + 3)
First : (2r)(2r) = 4r²
Outer : (2r)(+3) = 6r
Inner : (–3)(2r) = – 6r
Last : (–3)(+3) = – 9
Adding the results we get
4r² + 6r – 6r – 9 (+6r and – 6r cancels out)
= 4r² – 9
∴ (2r – 3)(2r + 3) = 4r² – 9
Hence, Denise answer is correct
Answer:
here you go the answer
Step-by-step explanation:
24*3=72
