When making tea, you use 21 spoons of sugar for every 7 quarts of tea. Which of the following equations can be used to calculate c, the number of spoons of sugar needed when using 21 quarts of tea? A. 21 = 21 7 c B. 21 = 7 21 c C. 21 = c 7 21 D. 21 = c 21 7

536

step-by-step explanation:

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation:

4n=2m

ratio of m to n: 2/4 = 1/2

answer

a. 1/2