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2 years ago

please help me answer this question! it’s due in soon. could you do this?

Mathematics

2 answers:

ASHA 777 [7]2 years ago

3 0

Answer:

a:) Integer Sequences

b:) 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, ...

Step-by-step explanation:

hjlf2 years ago

3 0

I’m not sure what the answer to a is but b is 21

1 + 2 = 3
3+ 3 = 6
6+ 4 = 10
10+ 5 = 15
15 + 6 = 21

The patter is that the number that is added increases by 1 each time

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4vir4ik [10]

Hint:- integral of x is x^2 / 2

5 0

3 years ago

What is the percent change of $15.60 to $11.70?

Rashid [163]

Answer:

percentage change=25% .

Step-by-step explanation:

Given : $15.60 to $11.70 .

To find: What is the percent change .

Solution: We have given that $15.60 to $11.70 .

Change = final value - initial value .

Change = $15.60 - $11.70

=$3.9

percentage change = $\frac{change}{original value}*100$

= $\frac{3.9}{15.60}*100$

= $\frac{390}{1560}*100$ .

On dividing both number by 3

percentage change= $\frac{130}{520}*100$ .

percentage change= $\frac{1}{4}*100$ .

percentage change=25% .

Therefore, percentage change=25% .

5 0

3 years ago

Read 2 more answers

Which graph represents the solution set of the system of inequalities? {−2x+y≤4 {y>x+2

Marat540 [252]

The answer is

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6 0

2 years ago

25 is 45% of what number

Oksi-84 [34.3K]

Answer: 55.56

Step-by-step explanation:

Let the unknown number be k

(45 x k) / 100 = 25

45k/100 = 25

multiply both sides by 100

45k = 25 x 100

45k = 2500

divide both sides by 45

k = 2500/45

k = 55.56

6 0

3 years ago

Peter purchased 14 new baseball cards for his collection. This increased the size of his collection by 35%. How many baseball ca

Vlad [161]

Answer:

Peter now has 54 baseball cards

Step-by-step explanation:

Percentages

Assume Peter had x baseball cards in his collection. The 35% of his initial collection is

35 * x / 100= 0.35x

We know that those 14 new baseball cards represent a 35% of his previous collection, therefore we can set a simple equation

0.35x=14

When we solve for x, we'll know how many baseball cards Peter had before

x=14 / 0.35 = 40

Peter had 40 cards, he added 14 new baseball cards, so he now has 40+14=54

Peter now has 54 baseball cards

8 0

3 years ago

￼please help me answer this question! it’s due in soon. could you do this?

please help me answer this question! it’s due in soon. could you do this?