9514 1404 393
Answer:
Step-by-step explanation:
We can subtract the second equation from 4 times the first:
4(a +b) -(4a +1.5b) = 4(95) -(267.5)
2.5b = 112.5 . . . . . simplify
b = 45 . . . . . . . . . . divide by 2.5
a = 95 -b = 50 . . . find 'a'
The solution is (a, b) = (50, 45).
Answer:
1/3 y +5
Step-by-step explanation:
five more than one-third y
1/3 y +5
There are no obtuse angles
Answer:
the numbers are 11 and 12
Step-by-step explanation:
Step-by-step explanation:
Let x be the principal amount.
Simple Interest Formula:

where a = final amount
p = principal amount
r = annual interest rate
t = time taken in years.
given a = 3x, p = x, t = 25, substitute a,p and t into formula.

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