Make an equation, solve it, and do self-check.

A man has $0.70 in dimes and nickels. He has 8 coins altogether. How many nickels does he have?

PLEASE MAKE AN EQUATION AND SOLVE IT

two nickles and six dimes

Step-by-step explanation:

x= dimes

y=nickles

.10x+.05y=0.70

plug in random whole numbers that add up to eight 8 for example you can do x=5 and y=3

that gives you .5+.15=.65

keep doing that until you get x=6 and y=2

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

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: