Answer:
-3 is just the answer of the equation.....you must solve x so turn it into 1x and solve it.....plz mark me brainliest
Step-by-step explanation:
Answer:
x=2,x=7
Step-by-step explanation:
-3x^2+27x=42
x^2-9x+14=0
x^2-2x-7x+14=0
x*(xi2)-7(x-2)=0
(x-2)*(x-7)=0
x-2=0
x-7=0
x=2
x=7
If the 5 of them weigh 1/4 of a ton
then 1 of them weigh x
5/1 = 1/4//x Do you see what happens? Just by writing down the givens you get a proportion. It will work better for you if you change the 1/4 to 0.25
5/1 = 0.25/x Now it looks like an ordinary proportion. Cross multiply
5x = 0.25*1 divide by 5
x = 0.25/5
x = 0.05 tons. We better change this to pounds.
1 ton = 2000 pounds
0.05 ton = x
1/0.05 = 2000/x Cross multiply
x = 2000 * 0.05
x = 100 pounds.
Answer:
3.You collect
4.Multiply the bottom by 4 and then add
5.Multiply the bottom by -2 and then add
6.Multiply the bottom by 2.Multiply the top by 3 and then add
7.Multiply the top by -3.Multiply the bottom by 2and then add
Step-by-step explanation:
