Question
Last year, Mai had $10,000 to invest. She invested some of it in an account that paid 5% simple interest per year, and she invested the rest in an account that paid 10% simple interest per year. After one year, she received a total of $600 in interest. How much did she invest in each account?
185
likes927 views
Answer to a math question Last year, Mai had $10,000 to invest. She invested some of it in an account that paid 5% simple interest per year, and she invested the rest in an account that paid 10% simple interest per year. After one year, she received a total of $600 in interest. How much did she invest in each account?
Maude
4.7107 Answers
1. Let \( x \) be the amount of money invested at 5%.
2. Let \( 10,000 - x \) be the amount of money invested at 10%.
We can set up the following equation for the total interest earned:
0.05x + 0.10(10,000 - x) = 600
3. Simplify and solve for \( x \):
0.05x + 1000 - 0.10x = 600
-0.05x + 1000 = 600
-0.05x = 600 - 1000
-0.05x = -400
x = \frac{-400}{-0.05}
x = 8000
4. Compute the amount invested at 10%:
10,000 - 8000 = 2000
so 8000 in 5% , 2000 in 10%
2. Let \( 10,000 - x \) be the amount of money invested at 10%.
We can set up the following equation for the total interest earned:
3. Simplify and solve for \( x \):
4. Compute the amount invested at 10%:
so 8000 in 5% , 2000 in 10%
Frequently asked questions (FAQs)
What is the number of ways to arrange 4 red, 2 blue, and 3 yellow balls on a shelf? (
+
What is the product of the conjugate of a complex number (3 + 4i) and its absolute value?
+
What is the measure of an angle formed by an angle bisector if one of the angles it bisects has a measure of 70 degrees?
+
New questions in Mathematics