Answer:
13
Step-by-step explanation:
x/y = 4
x=4y
x - y = 39
4y - y = 39
3y = 39
y= 13
220=A+S (adult plus student)
s=220-a
2.50a+1.50s=465
1.50s=-2.50a+465
s=-1.67a+310
then set those equal to each other
220-a=-1.67a+310
220=-.67a+310
-90=-.67a
.67a=90
a=60
then put a back into the first equation
220=S+A
220=s+60
s=160
a=60, s=160
Answer:
9/22
Step-by-step explanation:
=
1
/2
−
1
/11
=
1
/2
+
−1
/11
=
11
/22
+
−2
/22
=
11+−2
/22
=
9
/22
(Decimal: 0.409091)
Answer:
[5]
[6]
[7]
[8]
[9]
Step-by-step explanation:
Let's start with [5]
Distribute the Negative Sign:
Combine like term
Answer =
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[6]
Combine like terms
Answer =
------------------------------------------------------------------------------------------------------------- [7]
Combine like terms:
Answer =
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[8]
Answer =
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[9]
Combine likes terms
Answer =
[CloudBreeze]