Hey there! I'm happy to help!
Sum means to add. Let's call our number n.
n+15
We multiply this whole thing by 6.
6(n+15)
And this is -42.
6(n+15)=-42
We use distributive property to undo the parentheses.
6n+90=-42
We subtract 90 from both sides.
6n=-132
We divide both sides by 6.
n=-22.
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Answer:
6.4
Step-by-step explanation:
Find measurement of leg using pythagorean theorem
b^2 = c^2- a^2
b^2= 13^2 - 4^2
b^2= 169-16
b^2= 153
b= 12.4
t+6= 12.4
subtract 6 from both sides
t= 6.4
Answer is this this is the correct answer
1. compound interest
2. interest period
3. interest rate
4. annuity
5. cash value