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skad [1K]
2 years ago
8

PLEASE HELP ILL GIVE BRAINLIEST PLEASE PLEASE PLEEEEEEEAAAAASE

Mathematics
1 answer:
Nesterboy [21]2 years ago
8 0

The recursive formula is  a_n= a_{n-1} -5.

<h3>What is Arithmetic Progression?</h3>

A set of numbers is an arithmetic progression (AP) or an arithmetic sequence such that the difference between successive words is unchanged.

Given:

A(n)=(-1)+(n-1)(-5)

A(n) = -1 - 5n + 5

A(n) = 4-5n

n=1

A(1)= 4-5= -1

n=2,

A(2) = -6

n=3

A(3)= -11

Hence, the recursive formula is a_n= a_{n-1} -5.

Learn more about this concept here:

brainly.com/question/20113523

#SPJ1

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A retailer returned 2700 defective items to the manufacturer and received a credit for the retail price of $0.83 or 834/34 per i
Helga [31]

Answer:

credit gain by retailer is $2257.39

Step-by-step explanation:

Given data:

Retaile price 83 4/3 c or 84.33c

Let Discount rate 6/7

Discount amount = (6/7)% of 84.33 c = 0.7228 C

Net credit received = 84.33c - 0.7228c = 83.607c

Net credit received = 83.607 c

Item required  = 2700

Total discount = 2700 × 83.0607 = 225739.44c

Total discount = $2257.39

credit received by retailer is $2257.39

8 0
3 years ago
If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?
yuradex [85]
Y
y=ax
where a is a constant of proportionality;
y=20, x=4
20=4a
a=20/4
a=5
y=5x
The constant of variation is 5
3 0
3 years ago
Anne has worn a black shirt on 6 of the last 20 days. Considering this
Stels [109]

Answer:

3

Step-by-step explanation:

Considering she wore a black shirt 6 times in 20 days will give you the statistic of 3/10. If the question is about the next 10 days then she will wear 3 black shirts. (It's also 1/2 of the original question.)

7 0
3 years ago
An H0-scale model railroad engine is 9 inches long. The H0 scale is 87 feet to 1 foot. How long is a real engine?
Semmy [17]

The real engine is 65.25 feet long

<h3>How to determine the length?</h3>

The scale is given as:

Scale = 87 feet to 1 foot

The scale length is given as

Scale length = 9 inches

Convert inches to feet

Scale length = 9/12 feet

The actual length is then calculated as:

Actual = 87 * 9/12 feet

Evaluate

Actual = 65.25 feet

Hence, the real engine is 65.25 feet long

Read more about scale ratios at:

brainly.com/question/16192120

#SPJ1

7 0
2 years ago
. Jill is 48 5/8 inches tall. Lei is 47.5 inches tall. What is the difference in their heights? a. 0.125 inches b. 1.08 inches c
Roman55 [17]

Explanation:

First we write the fraction as a decimal. 5/8 is 0.625, so the height of Jill is 48.625 inches.

The difference is:

48.625-47.5=1.125

Answer:

c. 1.125 inches

5 0
1 year ago
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