7r+8p-(5-rp-rp) where r=3 and p=4
plug in 3 and 4 for r and p where it says in the equation
7(3)+8(4)-(5-(3)(4)-(3)(4))
multiply
21+32-(5-12-12)
21+32-(-19)
two negatives make a positive
21+32+19
=72
Answer:
3 +- 2i
Step-by-step explanation:
It takes about 4 days for the temperature to decrease by 9°F.
An equation is an expression that shows the relationship between two or more variables or numbers.
Let x represent the number of days. Given that the temperature drop decreased by 1 1/2°F each day (- 1 1/2), for it to decrease by 9°F (-9):
-1 1/2 * x = -9
-1.5x = - 9
x = 4 days
It takes about 4 days for the temperature to decrease by 9°F.
A=60
B=52
C=152
I’ve attached my work on how I got these answers
Hope this helps!
