Answer:
- 16
Step-by-step explanation:
following the rules as set out in PEMDAS
4² - 2(3 × 5 + 1) ← evaluate exponent term
= 16 - 2(3 × 5 + 1) ← evaluate multiplication inside parenthesis
= 16 - 2(15 + 1)
= 16 - 2(16) ← perform the multiplication
= 16 - 32 ← evaluate subtraction
= - 16
Answer:
15
Step-by-step explanation:
first you have to subtract 4 from 19 to get what k is. that should be your answer. good luck!
Answer:
Step-by-step explanation:
The answer to this problem can be found by writing an equation for the total interest in terms of the amounts invested at each rate.
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<h3>setup</h3>
Let x represent the amount invested at 9% (the higher rate). Then (11000-x) is the amount invested at 3%, and the total interest earned is ...
0.09x +0.03(11000 -x) = 750
<h3>solution</h3>
0.06x = 420 . . . . . . . subtract 330 and simplify
x = 7000 . . . . . . . divide by 0.06 . . . amount invested at 9%
11000 -7000 = 4000 . . . amount invested at 3%
Larry invested $4000 at 3%, and $7000 at 9%.
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<em>Additional comment</em>
In "mixture" problems of this type, it generally works well to let the variable represent the amount of the highest-value contributor. That way, the equations end up with positive coefficients, tending to reduce errors.
Answer:
3¹⁶
Step-by-step explanation:
While adding numbers with exponents, if the base of the numbers is same, then it will also be the same in the final answer and the exponents add
Hope this helps!