X = -5 and 3
You solve using the quadratic equation by using the formula below where the coefficients of each term are the letters in alphabetical order.
You said there were 40 yellow carsso 40×9 is 360
1/2(4+X)+2=16
2+(0.5 x X) + 2 = 16
4 + (0.5 x X) = 16
0.5 x X = 12
X = 24
idk if u understand my working out - message me if u dont
hope it helped tho :)
1080 clothespins makes 90 chairs and we need to find out how many clothespins it takes to make 1 chair.
We can set up a proportion of the number of chairs to the number of clothespins because of the proportional relationship.
x is the number of clothes pins for 1 chair

Cross multiply to get
90*x= 1080*1
Divide both sides by 90 to isolate x
x = 12 clothespins
It takes 12 clothespins to make 1 chair.
Answer:(-2,-6)
Step-by-step explanation:Put it in a graph and it should be the dot in the direct middle