All categories

2 years ago

Determine the sum of the first twenty five terms of the sequence whose first five terms are 5,14,23,32 and 41

Mathematics

1 answer:

Alika [10]2 years ago

5 0

Answer:

Step-by-step explanation:

This is an arithmetic sequence. Each term is 9 more than the preceding term.

The 25th term is 5+24*9 = 1085.

Sum of first 25 terms is 25(5+1085)/2 = 13625

You might be interested in

A teacher is making a history test composed of the same number of multiple-choice questions as short-answer questions. She estim

STALIN [3.7K]

Answer:

The inequality is $5.5n \leq 45$

Step-by-step explanation:

Total time:

The total time to complete the test is the sum of the number of multiple-choice questions multiplied by the time it takes to solve each and the number of short-answer questions multiply by the time it takes to solve each.

In this question:

Same number(n) of both.

Multiple-choice takes 2 minutes, short-answer takes 3.5 minutes. The total time is given by:

$T = 2n + 3.5n = 5.5n$

Write an inequality to determine how many questions, n, the teacher can include if the test must take students less than 45 minutes to complete.?

This means that:

$T \leq 45$

$5.5n \leq 45$

The inequality is $5.5n \leq 45$

5 0

3 years ago

Rebecca bought a desk for $70 she refinished it and sold it for a 20% profit? How much profit did she make? What price did she r

belka [17]

Answer:

she sold it for $84 and made $14

Step-by-step explanation:

take 20% of 70 add it to 70 and bam answer

6 0

3 years ago

Bella is buying balloons for a back to school celebration. She sees there are 4

loris [4]

Answer:

The first deal is better because it has more balloons for not too much of a price (individually)

Step-by-step explanation:

15*4= 60

60/18= 3.33

Deal 1= 3.33 for each balloon

10*5= 50

50/16=3.125

3 0

3 years ago

Read 2 more answers

Tasha graphs a star with one tip at point S(-3,1). What are the coordinates of the corresponding point after a 90 rotation abo

Rom4ik [11]

Answer:

corresponding point after a 90° rotation is (1,3)

Step-by-step explanation:

its drawn

5 0

2 years ago

25.1° what is the complementary angle

kari74 [83]

90-25.1=64.9
since complementary angles equal 90
hope this helped

4 0

3 years ago