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irina [24]
3 years ago
7

HELP BECAUSE IM STUPID!

Mathematics
2 answers:
swat323 years ago
7 0

Answer:

an=15.5−2.5n

Step-by-step explanation:

Just took the test :)

mixer [17]3 years ago
6 0
I don't think you're stupid. ^^
Let's take the third term, 8. If n=3, then an should be 8.
The first answer gives 15+2.5*3=22.5.
The second answer gives 15.5+2.5=23.
The third answer gives 15-2.5*3=7.5.
The fourth answer gives 15.5-2.5*3=8.
Choice 4 is correct.

Let's try to actually find the equation on our own.
The equation for an arithmetic series is an=a0+dn where a0 is the term that comes before the first term.
The first term given is 13 and it decreases by 2.5 each time so n=-2.5 and the term that would be before 13 is 15.5.
Thus the equation is an=15.5-2.5n
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Table
viktelen [127]

4) The first and second terms for both ratios need to be in the same order.

Step-by-step explanation:

Given ratio is:

16:36

In order to find any ratio equivalent to given ratio, the ratio can be divided by a number or multiplied to a number.

The equivalent ratio that is given: 72:32

If we multiply the given ratio by 2: We get 32:72

So,

Looking at the options we can conclude that the right answer is

4) The first and second terms for both ratios need to be in the same order.

Keywords: Ratio, Fractions

Learn more about ratios at:

  • brainly.com/question/1993757
  • brainly.com/question/2048256

#LearnwithBrainly

3 0
3 years ago
Please Help !!!
Rina8888 [55]

Answer:

40

Step-by-step explanation:

Sums:

1, 3

2, 2

4, 0

31 and 22 are to small of numbers.  That leaves 40.

40 and 04

so 40

  - 04

____

=  36

Good luck,

Camryn :)

7 0
3 years ago
Cant understand need it done today
adelina 88 [10]
I think they just want you to follow the graph like F goes on -3,2 and then when you do it you rotate it 90 degrees. And then just do the other ones yk?
8 0
3 years ago
State the smallest possible value of x if x is an integer for the following inequality.
Liono4ka [1.6K]
Answer: -22 is the smallest possible value of x
7 0
2 years ago
When do two ratios form a proportion?
umka21 [38]

when they are equal

5 0
3 years ago
Read 2 more answers
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