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Paraphin [41]
3 years ago
13

3n-5=8(6+5n) addition property of equality

Mathematics
1 answer:
blagie [28]3 years ago
4 0

Answer:

exact form:  n=-53/37

Step-by-step explanation:

isolate the variable by dividing each side by factors that don't contain the variable.

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5/2x+1 + 8/2x+1, x≠-1/2
svet-max [94.6K]

\frac{5}{2x + 1} +\frac{8}{2x + 1}

= \frac{5 + 8}{2x + 1}

= \frac{13}{2x + 1}

3 0
3 years ago
If m 1=55, what is m 5?
AleksAgata [21]
275 if i'm not mistaken
6 0
3 years ago
Read 2 more answers
Answer all 4 please
FrozenT [24]
1)
180 - (37 + 90) = 180 - 127 \\ = 53
2)
(180 - 15) \div 2 = 165 \div 2 \\ = 82.5
each of other angles measures 82.5 degrees

3)
180 - (42 + 20) = 180 - 62 \\ = 118
4)sorry I don't know the last one
7 0
3 years ago
The length of a string is L inches. Samantha cuts it into two unequal pieces such that the length of the small piece is 35% of L
skelet666 [1.2K]

Answer:

The shorter piece   x  =  8.4 in

The longer one    y  =  15.6 in

Step-by-step explanation:

If we cut  a string length  L  in to unequal  pieces we get two pieces

first one with length  x  and the other one with length  y

Let call  x  the smaller piece,  then   y = L  -  x will be the longer one

If   x  =  35 %    then

x  =  0,35* L     and

y = L -  x  =  L - 0,35*L      ⇒  y  =  0,65 L     ⇒ y  =  0.65*24

Now if L  =  24  in

x  =  0,35*24          ⇒               x = 8.4 in

and

L  -  x  =  0.65*L      ⇒       L - x  =  0.65*24     y  =  L  -  x  =  15.6 in

as way of verification you can add the length of the two pieces and find:

8.4  +  15.6  = 24 in

4 0
3 years ago
Hector is visiting a cousin who lives 350 miles away he has driven 90 miles how many more miles does he need to drive to reach h
lakkis [162]
Simple math. 350 - 90 = 260. So Hector needs to drive 260 km more to reach his cousin
8 0
3 years ago
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