Step-by-step explanation:
4+log(2x+3) = 5
log(2x+3) = 5-4
log(2x+3) = 1
2x+3 = 10¹
2x+3 = 10
2x = 7
x = 7/2
Answer:
Hi there!
Your answer is:
The length is 75
Step-by-step explanation:
P=180
L=5w
Perimeter formula
L+L+W+W=P
Plug in known values
5W+5W+W+W=180
12W=180
/12
W=15
Plug in width in length formula!
L=5W
L=5(15)
L=75
4 P 4 = 24
4 P 4 = 4! (4-4)! = 4!/1 = 4*3*2*1
you are doing combinatorics, yes?
[Part A]
company A company B
A=3h+75 B=2h+85
definition of variables
A=company A
B=company B
h=number of hours used
[Part B]
company A would charge less for 5 hours
justification
company A company B
A=3(5)+75 B=2(5)+85
A=15+75 B=10+85
A=90 B=90
[Part C]
By using the services of company A instead of company B to rent a truck for three hours you save 7 dollars.
company A: A=3(3)+75 = 9+75= 84
company B: B=2(3)+85 = 6+85 = 91
difference: 91-84= 7
Answer:
She changed the symbols in the first two problems because they were divided by a negative number whereas she shouldn't have changed the symbol in the last problem as it was not divided by a negative number and so the sign remains the same.
