Which strategy best explains how to solve this problem? claire bought a cup of coffee and two magazines each saturday. the coffee cost $2.50 and the magazines cost $3.99 each. what is the total amount of money that claire had spent after 7 saturdays? a. work backward. start with the price of a two magazines ($7.98). add the cost of a cup of coffee and then divide by 7. b. make a table. write the numbers 1 to 7 in the top row of the table (the number of saturdays). in the first box on the second row write $10.48. this is how much claire spends on 1 saturday. in each of the next boxes on the second row, write the amount claire spends by adding $10.48 to each previous amount. the answer in box 7 is the total amount claire spent after 7 saturdays. c. guess and test. guess that claire spent $75. multiply $3.99 by 2. then add that answer to $2.50. divide this answer into 75. if the answer is not 7, then revise your guess, and test your answer again.

let's add {f(x)=x+1}f(x)=x+1 and {g(x)=2x}g(x)=2x together to make a new function.

f(x)+g(x) =(x+1)+(2x)=x+1+2x=3x+1

let's call this new function hh. so we have:

{h(x)}={f(x)}+{g(x)}{=3x+1}h(x)=f(x)+g(x)=3x+1

we can also evaluate combined functions for particular inputs. let's evaluate function hh above for x=2x=2. below are two ways of doing this.

method 1: substitute x=2x=2 into the combined function hh.

h(x)

h(2)

​    

=3x+1

=3(2)+1

=7

​ since h(x)=f(x)+g(x)h(x)=f(x)+g(x), we can also find h(2)h(2) by finding f(2) +g(2)f(2)+g(2).

first, let's find f(2)f(2):

f(x)

f(2)

​    

=x+1

=2+1

=3

​  

now, let's find g(2)g(2):

g(x)

g(2)

​    

=2x

=2⋅2

=4

​  

so f(2)+g(2)=3+4=\greend7f(2)+g(2)=3+4=7.

notice that substituting x =2x=2 directly into function hh and finding f(2) + g(2)f(2)+g(2) gave us the same answer!

1/3

step-by-step explanation:

to find this, you can divide 12 by 4 which is 3 or you can multiply 4 until you reach 12 (4x3=12). both should give you 3, meaning theres three times less bananas than there are oranges.