Answer:
5
Step-by-step explanation:
Let x be the number of cell phones with keyboards needed.
40% =
=
x+45 = 40 -----1
x+120 = 100 -----2
You would want to make the total of 1 the same as 2.
1×
: 2.5+112.5 = 100 -----3
Now 2 and 3 are equal.
x+120 = 2.5x+112.5
Isolate the x and numbers.
120-112.5 = 2.5x-x
Simplify.
1.5x = 7.5
x =
× 7.5
x = 5
The manager of the store needs to add 5 more cell phones with keyboards.
Answer:David bought an identical mailbox for $ 19.95 at a different store.
Step-by-step explanation:
David bought an identical mailbox for $ 19.95 at a different store. you can buy a same mailbox but for different prices you have 22 dollars you have a 110 percent off you dont have enough
Answer:
<u>B</u><u>.</u><u> </u>
Step-by-step explanation:
We answer that before thank you
Answer:
18
Step-by-step explanation: