Use the Pythagorean theorem:
30^2 + 40^2 = X^2
900+ 1600 = x^2
X^2 = 2500
x = √2500
x = 50
The answer is 50 feet.
Answer:
-30u + 20w + 10
Step-by-step explanation:
Answer:
this systems shows only one solution... not no solution.
54 nickels and 27 dimes
1 dime = 10 cents = $0.1
1 nickel = 5 cents = $0.05
setting up 2 equations
let n = amount of nickels and d = amount of dimes, then
n + d = 81 → (1)
0.05n + 0.1d = 5.4 → (2)
multiply (2 ) by 10
0.5n + d = 54 → (3)
subtract (3) from (1) to eliminate d
0.5n = 27 ( divide both sides by 0.5 )
n = = 54
substitute n = 54 in (1)
54 + d = 81 ( subtract 54 from both sides )
d = 27
Mary has 54 nickels and 27 dimes
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Solve the equation:
Reduce the fractions at the left side so that they have the same denominator:
Numerators must be equal:
I hope this helps. =)
Tags: <em>rational equation fraction solution algebra</em>