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irga5000 [103]
3 years ago
5

Been stuck on this all day!! Helppp

Mathematics
2 answers:
stealth61 [152]3 years ago
8 0

Answer:

Step-by-step explanation:

You have to use the arithmetic sequence

f(n)=f(n-1)+d

You can plug in (40,10) and (50,20)

(10)=f(1)+39d

(20)=f(1)+19d

subtract

-10=20d divide

d=-1/2

plug into one of the equations above

(10)=f(1)+39(-1/2)

10=f(1)-39/2

59/2=f(1)

f(1)=29.5

plug into formula

f(n)=29.5-1/2(n-1)

f(n)= -1/2n +30 final equation (Plug in the table values into "n") to solve

statuscvo [17]3 years ago
4 0

Answer:

if it was like that wouldnt it go from 10 to 20 to 30 to 40 ect.

Step-by-step explanation:

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Jennifer places $500 into a savings account that is paying 1.5% annual interest. The interest is compounded monthly. How much mo
Anna11 [10]

Answer:

$522.99

Step-by-step explanation:

FV  = P (1 + \frac{r}{n} )^n^t

Fv = total amount plus interest over the given period of time

P = Principal amount deposited i.e $500

r = interest given 1.5% i.e 0.015

n = period of time the principal remains deposited. In this case annually i.e 12 months

FV = 500 ( 1 + \frac{0.015}{12} ) ^1^2^X^3

FV = 500 ( 1.04599)

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4 0
4 years ago
Jackson drinks 0.44 liters of water, which was 55% of the water in the bottle. How much water was in the bottle to start?
Delicious77 [7]

Answer:

He had 0.8 liters to start with...

Step-by-step explanation:

0.44 is 55% of what? (what = x)

Equation: Y = P% * X

X = Y/P%

X = 0.44/55%

55% = 0.55

X = 0.44/0.55

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7 0
4 years ago
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X+12=7 plz solve for x and explain
aalyn [17]

Answer:

x \:  + 12 = 7 \\  x = 7 - 12 \\ x =  - 5 \\  \\ hope \: that \: helps \: uh...

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A room that contains 28 square yards was carpeted at a cost of $322. If
ASHA 777 [7]

The cost for carpeting 20 square yards is $230.

Further explanation:

First of all, we will calculate the cost for one square yard then will find the final answer.

So,

Given

Total area = 28 square yards

Cost of carpeting 28 square yards = $322

Cost of carpeting one square yard = 322/28 = $11.5 per square yard

Now to find the cost of carpeting 20 square yards

Cost of 20 square yards = 20*11.5

= $230

The cost for carpeting 20 square yards is $230.

Keywords: Costing, Word Problems

Learn more about costing at:

  • brainly.com/question/3950386
  • brainly.com/question/4021035

#LearnwithBrainly

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4 years ago
Suppose the auction house from the preceding problem sold 200 tickets at $1 each, and had 16 prizes of $10 each. What is the new
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The answer is $0.8

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200+160=360/1.25/160=200.8
so the answer is $0.8
8 0
4 years ago
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