Let's name the number 'n'. Now write an equation. 7*n +n^2 =12Now you can form a quadratic. n^2 +7n-12=0. Now you can use a myriad of methods to solve it. If you still need help, just message me.

6 0

3 years ago

Identify the percent, amount, and base in this problem.<br> 75% of what number is 30?

AfilCa [17]

I hope i answered it right but..

3 0

2 years ago

Gilda walks to the train station. If she walks at the rate of 3 mph, she misses her train by 7 minutes. However, if she walks at

Salsk061 [2.6K]

We'll represent the distance as d and the time as t.
d= 3(t+7) because Gilda is 7 minutes late when travelling 3 mph
d= 4(t-5) because Gilda is 5 minutes early at 4 mph

d= 3t + 21
d= 4t -20
3t +21 =4t -20
41=t
d= 3(41) +21= 144
The distance is 144 miles.

3 0

3 years ago

Read 2 more answers

In what time will the interest on $960 amount to $61.20 at 8.5% per annum?​

In what time will the interest on $960 amount to $61.20 at 8.5% per annum?