No she does not have enough to pay her parents, with her $10 and $25 she would only have $35 Mary would have to make another $15 to pay back her parents
Answer:
Step-by-step explanation:
An irrational number can be written as a decimal, but not as a fraction. An irrational number has endless non-repeating digits to the right of the decimal point. Here is an irrational number: π = 3.141592
Your answer would be 4 13/24. Or in decimal: 4.541667. ( 7/8 + 3 4/6 = 4 13/24 )
This exercise wants you to build a linear system of two equations and two unknowns.
To do so, we assign a variable to each of the quantity we want to calculate, so let's call the cost of one daylily and the cost of one shrub.
We know that Ashley bought 7 daylilies and 2 shrubs, so she paid
Similarly, Lisa spent
for 14 daylilies and 11 shrubs.
So, the system is
To solve the system, we must manipulate its equations in order to find the value of one particular variables. For example, we can multiply the first equation by 2 to get
Now, if you subtract the first equation from the second you have
So, one shrub costs 12 dollars. We can substitute this value for in any of the equation, and solve it for . For example, if we choose the first one we have
So, one daylily costs 3 dollars.