I would appreciate it if you help me pls asap !!
2 answers:
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You can both compare and order integers by subtracting them:
- If the difference is zero, as the name suggests...there's no difference! So, the integers are the same. For example, you have
- If the difference is positive, then the first integer is bigger than the second. For example:
and we deduce that 5 is greater than 2, 18 is greater than -2 and -3 is greater than -10
- If the difference is negative, then the first integer is less than the first. For example, if we invert the previous differences, we have
and we deduce that 2 is less than 5, -2 is less than 18 and than -10 is less than -3
Answer:
The amount invested at 4% is $20,500 and the amount invested at 10% is $500
Step-by-step explanation:
Let
x -----> the amount invested at 4%
(21,000 -x) ----> the amount invested at 10%
we know that
The interest of the amount invested at 4% plus the interest of the amount invested at 10% must be equal to $870
so
Solve for x
therefore
The amount invested at 4% is $20,500 and the amount invested at 10% is $500