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<span>3x + 2x = 90 {the two angles add up to 90°}
5x = 90 {combined like terms}
x = 18 {divided both sides by 5}
angle 1 = 3x
= 3(18) {substituted 18, in for x, into 3x}
</span><span>= 54° </span><span>angles add up to 90°
angle 1 = 3x
angle 2 = 2x
</span>
Answer:
1.→n=15
2.→n=0
Step-by-step explanation:
The two expressions given are
⇒A number is said to be rational if it can be expressed in the form of , where ,q≠0.And it's decimal expansion will be either terminating or non terminating repeating.
We have to find smallest value of n, for which each of these two expressions will be rational.
So, 1.→n=15
and 2.→n=0
Have a nice day! -Alpha
X= child ticket
y= adult ticket
COST EQUATION:
$5.90x + $9.70y=$1352.20
QUANTITY EQUATION:
x+y=168
Step 1:
Solve for one variable in either equation and substitute it in the other equation
x+y=168
subtract y from both sided
x=168-y
Step 2:
substitute x=168-y in other equation
5.90x + 9.70y=1352.20
5.90(168-y) +9.70y=1352.20
multiply 5.90 by everything in parentheses
(5.90*168)+(5.90*-y) +9.70y=1352.20
991.20-5.90y+9.70y=1352.20
combine like terms
991.20+3.80y=1352.20
subtract 991.20 from both sides
3.80y=361
divide both sides by 3.80
y=95 adult tickets
There were 95 adult tickets sold.
Hope this helps! :)
Answer:
y=8
Step-by-step explanation:
