Answer:
131/4
Step-by-step explanation:
you multiply the denominator by 32 (which is 4) and you add it to the numerator)
32 x 4 = 128
128 + 3 = 131
so your answer is 131/4
and your the answer for your equation 32 3/4 - 12 1/2
32 3/4 − 12 1/2
= 131/4 − 25/2
= 81/4
= 20 1/4
Answer:
60
Step-by-step explanation:
60 ÷ 2 = 30
60 ÷ 3 = 20
Have a nice day :)
yes
3/7 multiplied by 6 (each no.) gives 18/42
Thus, 18/14=18/42
3/7=18/42
Answer
let the first number be x
second number be y
5*(x)+y=-21---------->equation 1
2*(x)+y=-9------------->equation2
<h2>
eq1 * 2:</h2>
2(5x+y)=2*-21
10x+2y=-42
<h2>
eq2 * 5:</h2>
10x+5y=-45
10x+2y=-42
-(10x+5y=-45)
-----------------
0 - 3y=3
y=3/-3
<h2>
y=-1</h2><h3>
sub y=-1 in eq1;</h3><h3>
5x+y=-21</h3><h3>
5x+ -1=-21</h3><h3>
5x-1=-21</h3><h3>
5x=-21+1</h3><h3>
5x=20</h3><h3>
x=20/5</h3><h2>
x=4</h2><h2>
y=-1</h2>
The answer is A, (2x+3)(x-7)