Answer: 3.5a+5b=470 and a+b=115
Step-by-step explanation:
The answer to the question is 2 and 1/2 left on the ground.
3x + 4(x + 1) = 67
7x + 4 = 67
7x = 67-4 = 63
x = 9
The smaller integer is 9.
Answer:
4u^2 + 16u + 15
Step-by-step explanation:
Multiply each of the terms in the first binomial by each of the terms of the second binomial (4 multiplications in all).
(2u + 3)(2u + 5) = (2u)(2u + 5) + 3(2u + 5)
= (2u)(2u) + (2u)(5) + 3(2u) + 3(5)
= 4u^2 + 10u + 6u + 15
= 4u^2 + 16u + 15
To write this in standard form, you need to eliminate the
fraction in the coefficient of variable x. You can do this by multiplying 8 to
the two sides of the equation:
8(y) = 8[(-5/8)x + 3]
8y = -5x + 24
Transpose the variable x to the other side:
5x + 8y = 24
