Answer:
solution:
5(4+2x)=-(x-5)-7
20+10x=-x+5-7
10x+x=-2-20
x=-22/11=-2
x=-2
<em><u>so.D.-2 is your answer.</u></em>
Answer:
PLEASE MARK AS BRAINLIEST
Z = 130
Y = 50
X = 130
Step-by-step explanation:
hope this helped
a. The interest earned will be $36.
b. The account balance will be $336.
Step-by-step Explanation:
Step 1:
The initial amount put into the account was $300.
This account has an interest rate of 4% every year. So we must calculate how much 4% of $300 is.
4% of $300 = 
Step 2:
So for every year, the interest of $12 is added into the account. To calculate total interest we multiply this interest amount and the number of years.
So after 3 years 
So account balance after 3 years
.
So the interest earned is $36 and the account balance is $336 after three years.
Answer:
x = 11
Step-by-step explanation:
(0.3x - 2.1)/3 = 0.4
0.3x - 2.1 = 0.4 * 3
0.3x - 2.1 = 1.2
0.3x = 1.2 + 2.1
0.3x = 3.3
x = 3.3/0.3
x = 11