Answer:
x = 3
Step-by-step explanation:
Solve for x over the integers:
5^(2 x - 3) = 125
Multiply both sides by 125:
5^(2 x) = 15625
15625 = 5^6:
5^(2 x) = 5^6
Equate exponents of 5 on both sides:
2 x = 6
All equations give x = 3 as the solution:
Answer: x = 3
Answer:
x=14 or 14x
Step-by-step explanation:
5*2=10
5*3=15
10x-15=125
+15=+15
10x=140
/10=/10
x=14
Luisa mows lawns during the summer. She charges $15 if she cuts the grass but charges $5 more if she also trims the grass. Last week she trimmed 5 more yards than she cut. If she made $415 last week, how many yards did she trim?
Answer:
315÷35=9
Step-by-step explanation:
5 extra yards had given her an extra $100, so the yards she cut, plus those she trimmed, had given her $315. To cut one and trim another one she takes $35. This means 9 yards were cut and 14 trimmed. (315÷35=9)
Answer:
1.)-8
2.)-5
3.)4
Step-by-step explanation:
So, the function f(x)=3x-5
The questions say "If you were to substitute these numbers what answer would you get?"
Understanding this,
First question is with x=-1
f(-1)=3(-1)-5
f(-1)=-3-5=-8
_____________________________________
f(0)=3(0)-5
f(0)=0-5=-5
_____________________________________
f(3)=3(3)-5
f(3)=9-5=4
A.
(4, 0)
B.
(0, 4)
C.
(–2, –3)
D.
(–3, –2)