Answer:
don't know
Step-by-step explanation:
where is the diagram
Answer:
x=3
y=6
Step-by-step explanation:
Hope this helps! :)
90-x*30=80
90-30x=80
90-90-30x=80-90
-30x=-10
Divide by -30 for -30x and -10
-30/-30x=-10/-30
x=1/3
The given equation is:
![\frac{q+5}{-3} * \frac{-3q}{q+2}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bq%2B5%7D%7B-3%7D%20%2A%20%5Cfrac%7B-3q%7D%7Bq%2B2%7D%20)
Just multiply both numerators and both denominators respectively, with the bar line still between them. So, it becomes
![\frac{(q+5)(-3q)}{(-3)(q+2)} = \frac{-3 q^{2}-15q }{-3q-6} ](https://tex.z-dn.net/?f=%20%5Cfrac%7B%28q%2B5%29%28-3q%29%7D%7B%28-3%29%28q%2B2%29%7D%20%3D%20%5Cfrac%7B-3%20q%5E%7B2%7D-15q%20%7D%7B-3q-6%7D%20%0A)
Then you factor out the equations:
![\frac{-3 q^{2}-15q }{-3q-6} = \frac{-3q(q+5)}{-3(q+2)} ](https://tex.z-dn.net/?f=%5Cfrac%7B-3%20q%5E%7B2%7D-15q%20%7D%7B-3q-6%7D%20%3D%20%5Cfrac%7B-3q%28q%2B5%29%7D%7B-3%28q%2B2%29%7D%20%0A)
Simplify terms by dividing them. The negative sign and 3 cancels out. The answer would be:
Answer:
-0.8
Step-by-step explanation:
1. When subtracting or adding negative numbers, remember these rules:
Same signs add and keep
Different signs subtract
Keep the sign of the higher number.
2. -0.1 and -0.7 both have the same sign (they're both negative numbers), so add them together.
-0.1 - 0.7 = -0.8
3. The answer is negative based on the rules listed above in step 1.