Step 1: Subtract 28x from both sides.
4x2−28x=28x−28x4x2−28x=0
Step 2: Factor left side of equation.
4x(x−7)=0
Step 3: Set factors equal to 0.
4x=0 or x−7=0
Answer:x=0 or x=7
Answer:
0.875
Step-by-step explanation:
i used my calculator :D
Answer:
36%
Step-by-step explanation:
20 % solution in 4/5 parts of the mmixture gives 80/5
100% solution in 1/5 parts of the mixture gives 100/5
total would give 80+100/5= 36% solution
If you're looking for the interest the answer would be:
i=8,000*.015*3
i=360.
The interest would be $360 dollars.
The balance would be 8,000+360= $8,360

In this case, you have to multiply each term of one parenthesis by each term in the second bracket. After receiving a number of factors need to be segregated and placed in the correct order.