Solve.7(x + 2) = 5(x + 4)
A. 11
B. 21
C. 3
D. 16
Answer: C
You might also like to view...
Factor out the common binomial factor as the GCF.(9w + 7)(w + 3) + (w + 1)(w + 3)
A. 2(2w + 6)(5w + 4) B. (w + 3)(10w + 1) C. 2(w + 3)(5w + 4) D. (w + 3)(10w + 8)
Translate to an algebraic expression using the variable, x.7 times a number divided by k
A. 
B. 
C. 
D. 
Translate the problem situation to a system of equations. Do not attempt to solve.The perimeter of a rectangular building is 246 feet. The width is 57 feet shorter than the length. What are the dimensions? (Let W represent the width and L represent the length.)
A. W = L + 57, 2L + 2W = 246 B. L = W - 57, 2L + W = 246 C. W = L - 57, 2L + 2W = 246 D. W = L - 57, L + W = 246
The concentration of a drug in an organ at any time t (in seconds) is given by 
where 
is measured in grams/cubic centimeter
src="https://sciemce.com/media/3/ppg__cognero__5.2_Logarithmic_Functions__media__129e9bd3-5f7e-4095-814f-e67c7afe71f0.PNG" style="vertical-align:middle;" />. How long would it take for the concentration of the drug in the organ to reach 0.19
?
?
Please round the answer to two decimal places.
?
A. 
sec
B. 
sec
C. 
sec
D. 
sec
E. 
sec