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3 years ago

Kelly has 24 dimes and quarters worth $3.60 how many quarters does she have?

2 answers:

7 0

If all were dimes, Kelly would have $2.40. She has $1.20 more than that. Each quarter that replaces a dime adds $0.15 to the total, so she must have 1.20/0.15 = 8 quarters.

_____
Check
.. 8 quarters = $2.00
.. 16 dimes = $1.60
total = 24 coins = $3.60

Mrac [35]3 years ago

3 0

She has 20 more dimes
it might be wrong sorry if it is

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Answer:

16 ALB

Step-by-step explanation:

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3 years ago

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Alika [10]

Answer:

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Step-by-step explanation:

the area of a polygon is/

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4 years ago

5 Vera is a shop manager. 5 She has this information about the income in her shop for eight weeks this year. Week 1 2. 3 4 5 6 7

Alex

Using the median concept, it is found that it suffered a 11.16% decrease.

<h3>What is the median of a data-set?</h3>

It is the 50th percentile of the data-set, which is the value that separates the lower 50% from the upper 50%.

In this problem, the ordered data-set, in thousands of £, is given by:

{19.4, 39.8, 42.3, 42.5, 45.1, 47.9, 52.4, 53.5}

It has even cardinality, hence the median is the mean of the 8/2 = 4th and 5th terms, so:

M = (42.5 + 45.1)/2 = £43800.

It decreased from £49300 last year. The percentage decrease is the change divided by initial amount and multiplied by 100%, hence:

P = (49300 - 43800)/49300 x 100% = 11.16%.

More can be learned about the median concept at brainly.com/question/25215461

5 0

2 years ago

Find the slope of the line through the given points (4,-2),(-1,8)

nikklg [1K]

Answer:

$\displaystyle m=-2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (4, -2)

Point (-1, 8)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{8+2}{-1-4}$
[Fraction] Add/Subtract: $\displaystyle m=\frac{10}{-5}$
[Fraction] Divide: $\displaystyle m=-2$

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3 years ago

3х - 2y = 14 5х + бу =42 What’s this on a graph?

Gelneren [198K]

Answer:

Step-by-step explanation:

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3 years ago