Answer:
a) 9
b)

c) 15
Step-by-step explanation:
The first step is to cancel out the fraction's denominator if possible.
a)

We can cancel the 5 out since 15 divided by 5 is 3. The answer that comes out is

Since 3/1 is 3, we can now simplify the values:

b)

4 is indivisible by three and gives a non-whole value. This is not what we need here.
Instead we should do the division rule and find the remainder.
In this case, 4 divided by 3 gives 1 with a remainder of 1.

After we simplify the non-mixed fraction, we have to change it into a mixed fraction, which consists of a whole number and a fraction. We can split it into the following:

The r1 is just the remainder of the fraction. Since we cannot remove 1 from the remainder, we add it back into the fraction's denominator of 3. This gives:

c)

For this part, we can cancel out 2 since 6 is divisible by 2. This gives:

Since 5/1 is 5,
we can now solve part c:

Answer:
12 and 36
Step-by-step explanation:
x+3x=48
4x=48
divide by 4
x=12
48-12=36
Answer:3/10
Step-by-step explanation:
Decimal to Fraction
one number - 10^1
two numbers after decimal point not including trailing zeros - 10^2
etc.
there is one number, so 3/10^1 ->3/10
Answer:
5/9
Step-by-step explanation:
First, you have to know what is the law of Sine?
(Refer to this website for more information: https://www.mathsisfun.com/algebra/trig-sine-law.html )
<span>a/sin A</span><span> = </span><span>b/sin B</span><span> = </span><span>c/sin C
in this case: 13/sin59=14/sinB, => sinB=(sin59)*14)/13 use your calculator:
B is about 67 degree.
the three angles make a total of 180 degree, so C=180-59-67=54
again, use law of sin, to find out c
13/sin59=c/sin54 =>c is about 12
I don't see how to form the other triangle.</span>