Question

Ahmed wants to buy one of two skateboards. One skateboard costs $1 more than the other. The sum of their costs is $145. How much does each skateboard cost.

Answer 1

Answer:

$72 and $73

Step-by-step explanation:

Step 1: Turn the question into words

$s_1+s_2=145\\s_2=s_1+1$

Step 2: Rearrange the equations a bit

$s_1+s_2=145\\-s_1+s_2=1$

Step 3: Subtract the second equation from the first

$2s_1=144$

Step 4: Divide both sides of the equation by 2

$s_1=72$

Step 5: Find s2

$s_2=s_1+1\\s_2=72+1\\s_2=73$

Step 6: Conclude

One skateboard costs $72 and the other skateboard costs $73.

Answer 2

Answer:

Hey! The answer is 72 and 73  

Step-by-step explanation:

Take 145, take away 1$ then divide by 2 considering there are 2 skateboards,  then that leaves you with 2 72's or 72 and 72 then add the one back leaving you with 72 and 73

Hope this helped!