Answer:
Step-by-step explanation:
1.
Shirts cost $20 each and ties cost $12 each.
<u>Expression for the cost:</u>
Correct choice is B
2.
<u>An expression that represents 40% of a number is:</u>
Correct choice is B. False
3.
t = -2, x = 3 and z = 5
- 4z + 3x − t =
- 4*5 + 3*3 - (-2) =
- 20 + 9 + 2 =
- 31
Correct choice is C. 31
Answer:
d.) 81
Step-by-step explanation:
f(2) would be 27 and 27x3 is 81.
81/3=27
27/3=9
Answer:
Yeah.it is right
Step-by-step explanation:
You're given two points for f(t) and g(t) each. Two points, (x1,y1), and (x2,y2). In this case, x1 is always x1=0, since the time t starts counting at the earliest year given.
We know the form y=mx+b. m can be found a la (y2-y1)/(x2-x1), but remember x1 is 0. b can be found at f(0) or g(0), which we're already given; y1 for both cases.
I'm sorry, but I'm not giving a direct answer. Knowing the method, and being careful with calculations, should be more than sufficient.<span>it would be 22395-20808/5=317.4 f(t)
26508-26155/5= 70.6
</span>
Answer:
6 hours and 45 minutes
Step-by-step explanation:
First, convert 12 hours into minutes.
12*60=720
Convert 5 hours to minutes and add 15
5*60=300+15=315
Subtract 720 from 315.
720-315=405
Convert into hours and minutes.
405/60=6.75
0.75 of an hour is 45 minutes so the answer is 6 hours and 45 minutes.
