Answer:
62
Step-by-step explanation:
There are two lengths so 77 + 77 is 154. Now, subtract from the perimeter. 278 minus 154 is 124. This is both widths combined so to only get one, divide by 2. 124 divided by 2 is 62.
500 (the current collection) + 10 (the weekly addition) x 20 (weeks to add)
500 + 10*20 (Multiplication comes before addition)
500+200
700
Answer:
the temperature is 10 degrees F at 7 pm, and -2 degrees F at 7 am the next morning. How much did the temperature change between 7 pm and 7 am
Answer:
option-D
Step-by-step explanation:
we are given

Let's assume it is equal to 0

We can use quadratic formula
Suppose, we are given quadratic equations as


we can compare and find a,b and c
a=1 , b=2 , c=4
now, we can plug values
and we get

now, we can simplify it
and we get
