Answer:
$30.
Step-by-step explanation:
Definition:
Allowance: A regular sum of money that is given by a parent or guardian to a child in each month.
Solution:
We can use the following formula to find the total amount of Mallory's monthly allowance:
In this case, we know that Mallory has saved $3, which is 10% of her monthly allowance.
Plugging these values into the formula, we get:
Divide both sides by 0.10.
Therefore, Mallory's monthly allowance is $30.
Answer:
Jerome spent hours studying mathematics
Step-by-step explanation:
We were given that every 5 hours Jerome spends studying math. he studies science for 4 hours.
The ratio of Mathematics to Science is
respectively.
The total ratio is .
If Jerome spent a total of hours studying last week, then the number of hours he spent studying mathematics is
.
.
hours.
Answer:
And then we can solve for x like this:
And the final solution would be 30 hours for math and 24 for the science course.
Step-by-step explanation:
We need to define some notation first. Let
x= number of hours that he spent for the math course
y = number of hours that he spent for th science course
We have that the total of hours is 54, and we can write that like this:
(1)
And the other conditions is: " For every 5 hours Jerome spends studying math, he studies science for 4 hours" And we can write this like that:
And we can solve for x like this:
And we can replace this into equation (1) and we got:
And if we do the algebra we got:
And then we can solve for x like this:
And the final solution would be 30 hours for math and 24 for the science course.