Well your going to need 5, since 4 wouldn't be enough, 4 would only be 24.
Answer:
let W and R represent white toothpaste and red toothpaste represently
n(W)=143
n(R)=135
n(WnR)=70
n( WuR)=?
Now,
n(WuR)=n(W)+n(R)_n(WnR)
=143+135_70
=208
that's all don't forget to write therefore.
Answer:
hours.
Step-by-step explanation:
We have been given that a chemical spill is leaking into a river flowing 2 3/4 miles per hour.
To find the time taken by chemical to reach the town we will divide distance of town from the spill by distance covered by chemical spill in one hour.

Upon converting our mixed fractions into improper fractions we will get,

Dividing a fraction with another fraction is same as multiplying first fraction by the reciprocal of second fraction.

After cancelling out 4 we will get,



Therefore, it will take the chemicals
hours to reach the town.
<h3>
Answer: 1.5</h3>
Explanation:
The constant of proportionality is the same as the slope for equations of the form y = kx.
To find the value of k, we divide the y over x values.
k = y/x = 12/8 = 1.5
or
k = y/x = 6/4 = 1.5
Either way the answer is 1.5
This means Ziah ran at a rate of 1.5 city blocks per minute.
so 15% off is 149.85 which makes it 849.85 then you add sales tax which is 79.92 and your cost is 929.07