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Len [333]
3 years ago
11

How would I solve 3+x=9?

Mathematics
2 answers:
kotegsom [21]3 years ago
5 0

Answer:

x=6

Step-by-step explanation:

3+x=9

-3    -3

x=6

ladessa [460]3 years ago
4 0
Subtract 3 from 9 to find x.
3+x=9
9-3=6

Check answer:
3+6=9
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On a map the scale is given as 2.5 inch: 4 miles. How many miles in real life is 5 inches on the map? *
liubo4ka [24]

Answer:

8 miles

Step-by-step explanation:

5 0
3 years ago
The locations, given in polar coordinates, for two ships are (8 mi, 63º) and (8 mi, 123º). Find the distance between the two shi
Anna35 [415]
We know that

The arrangement forms an isosceles triangle with equal legs of 8 miles.
The angle between the legs is equal to

123-63=60°

 Therefore, the other two angles are
Angles = (180-60)/2 = 120/2 = 60°
It can, therefore, be noted that all angles are equal and thus the resulting triangle is actually an equilateral triangle and thus all the sides are equal.

Hence
the answer is
the distance between the two ships is 8 miles apart

alternative Method
Applying the law of cosines
<span>c²=a²+b²-2*a*b*cos C
</span>where
a=8 miles
b=8 miles
C is the angle between the legs-------> 123-63------> 60 degrees
c is the distance between the two ships
so
c²=8²+8²-2*8*8*cos 60------> c²=64-------> c=√64------> c=8 miles


5 0
3 years ago
Read 2 more answers
A bag contains 35 coins, some dimes and some quarters. The total amount of money in the bag is $4.85. How many dimes and how man
miskamm [114]

Answer:

9 quarters and 26 dimes

Step-by-step explanation:

your welcome :)

5 0
11 months ago
Simplify this expression:<br> -(x+2)+4<br><br> i have no idea im not good with math ;(
topjm [15]

ANSWER :

- ( x+ 2 ) + 4

-x - 2 + 4

-x + 2

8 0
3 years ago
Read 2 more answers
The is thinking of a number which he calls n. He finds 1/3 of the number and subtracts 5
Alona [7]

Answer:

I just did it its 1/3n - 5

Step-by-step explanation:

5 0
3 years ago
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