Answer:
Laura has $4.50 in dimes and quarters she has 3 more dimes than quarters How many quarters does she have
She has 3 more dimes than quarters. How many quarters does she have? Laura has 15 dimes and 12 quarters.
Step-by-step explanation:
5m + 4m = 72
Combine like terms.
9m = 72
Divide both sides by 9.
m = 8
The amount of passwords you can guess are 4,569,760.
How this is found is by multiplying the amount of numbers in the alphabet by itself 4 times, then multiplying by the amount of 1 digit numbers there are, so multiply by 10, it is ten because you can have the number as 1 2 3 4 5 6 7 8 9 or 0, and then the number you get is your answer. Hope this helped! ^_^
Answer:
no roots.
Step-by-step explanation:
1) 
2) 
note, the value after operation 'square root' cannot be negative ('-6' is on the right side!), then
3) it means, the given equation has no real roots.
Answer:
20 mangoes.
Step-by-step explanation:
Given:
Total number of mangoes, a trader bought = 
A trader bought at the rate of 4 mangoes for 10 naira.
Five of the mangoes were bad.
He sold the remaining at the rate of 5 mangoes for 20 naira.
He made a gain of 10 naira
Question asked:
Total number of mangoes, a trader bought =
= ?
Solution:
Unitary method
Cost price of 4 mangoes = 10 naira.
Cost price of 1 mango = 
Cost price of
mango = 
As 5 of the mangoes were bad and he sold the remaining mangoes, then Total number of mangoes sold = 
Sale price of 5 mangoes = 20 naira
Sale price of 1 mango = 
Sale price
of mango = 
Now, as we know,



Adding both sides by 20

Multiplying both sides by 2

Dividing both sides by 3

Therefore, total number of mangoes, a trader bought is 20.