X = 3 * 40 / 15 = 8
The answer is 8
5x - 4
4 less than = - 4 (since it's 4 less than and not 4 more than, the - 4 will go after five times a number)
five times a number = 5x (x because we don't know the number, so we use a variable)
Answer is D. y = 1/2x + 3
Explanation
you are looking for “least steep” on the graph, so you are looking for the least amount of slope. Slope is the number next to x in the slope intercept y=mx+b.
1/2 on a graph would be 1 up and 2 to the right
The other three options would be 1 up 1 over, 2 up 1 over, 3 up 1 over, all having a steeper slope.
Answer:
plot those dots in a x-y graph, see which one is not on the same line
the question is a bit wrong though...a function can include all of those points, but a Linear function cannot.....so if u can, tell the guy who wrote the question to rephrase it to "Linear function"
Step-by-step explanation:
5th term = a1 + 4d = 34
10th term = a1 + 9d = 43
subtracting first equation from the second gives:-
5d = 9 so d = 9/5 or 1.8
first term a1 = 34 - 4(1.8) = 26.8
Sum of first 20 terms = (20/2)[2(26.8) + 19*1.8]
= 10* 87.8
= 878