Is 5 because the factor of 15 can not be other number except 5
Answer:
40 is the answer . is it right or Not?
Answer:
![d + q = 20](https://tex.z-dn.net/?f=d%20%2B%20q%20%3D%2020)
![0.25d + 0.10q = 3.05](https://tex.z-dn.net/?f=0.25d%20%2B%200.10q%20%3D%203.05)
Step-by-step explanation:
Given
Coins = 20
Value = $3.05
Required
Determine the equation that represent this
From the question, we have that
d = the number of dimes
q = the number of quarters
This implies that;
![d + q = 20](https://tex.z-dn.net/?f=d%20%2B%20q%20%3D%2020)
Also;
---------- Standard unit of conversion;
This implies that
![0.25d + 0.10q = 3.05](https://tex.z-dn.net/?f=0.25d%20%2B%200.10q%20%3D%203.05)
Hence, the equations are:
![d + q = 20](https://tex.z-dn.net/?f=d%20%2B%20q%20%3D%2020)
![0.25d + 0.10q = 3.05](https://tex.z-dn.net/?f=0.25d%20%2B%200.10q%20%3D%203.05)
Answer:
$40
Step-by-step explanation:
The use of the word "mental math" means round to the nearest whole. By doing this you turn $12.98 into $13 and $1.02 into $1 which will give you $40 in total. This problem doesn't need to round as it is a simple problem. The true answer is $12.98 + $17.50 + $8.50 +$1.02= $40.