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nasty-shy [4]
3 years ago
15

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

Mathematics
2 answers:
erastovalidia [21]3 years ago
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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Ghella [55]

Answer:

PART A: Inequality (a)

Solve for y

The graph of y ≥ ⅓(8-x) is represented by the upper red line and all points in the shaded area below it. The line is solid because points on the line satisfy the conditions.

 Inequality (b)

Solve for y

The graph of y ≥ 2 - x is represented by the lower blue line and all points in the shaded area above it. The line is solid because points on the line satisfy the conditions. The solution lies in the purple area. It consists of all combinations of x and y that make y ≥ ⅓(8 - x) and y ≥ 2 - x. A practical but not a mathematical condition is that all values of x and y must be zero or positive numbers (for example, you can't have -2 servings of food), so I have plotted only the numbers in the first quadrant.

PART B: If a point is a solution of the system, then the point must satisfy both inequalities of the system.

For x=8, y=2. Verify inequality A  is not true. So the point does not satisfy inequality A. Therefore, the point is not included in the solution area for the system.

PART C: I choose the point (3,1) which is included in the solution area for the system.

That means Michelle buys 3 serves of dry food and 1 serving of wet food.

Step-by-step explanation:

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3 0
3 years ago
A drawing of a surfboard in a catalog, it shows its length as 8 4/9 inches. Find the actual length of the surfboard if 1/3 inch
Bond [772]

Answer:

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Step-by-step explanation:

Length of drawing = 8 4/9 inches

Scale : 1/3 inch in drawing = 3/8 actual length

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8 4/9 = 76/9 inches

Number of 1/3 inches in total length of drawing :

76/9 ÷ 1/3

76/9 * 3 / 1

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(228 / 9) * (3 /8)

(228/3) * (1/ 8)

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4 0
3 years ago
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Norma-Jean [14]

Answer:

Correct choice is A

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Two vertices of the rectangle have coordinates A(-1, 5) and B(2, 1). If rectangle sides are parallel to the axes, then two remaining vertices have coordinates C(-1,1) and D(2,5) (see attached diagram for details).

Find the length and the width:

AC=\sqrt{(-1-(-1))^2+(5-1)^2}=4\ units,\\ \\AD=\sqrt{(2-(-1))^2+(5-5)^2}=3\ units.

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tankabanditka [31]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
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RUDIKE [14]
<h3>Answer:</h3>

The slope is -10 and the y-intercept is 1.

<h3>Explanation:</h3>

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In this case, m=-10 and b=1, so those are the answers to this problem.

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3 years ago
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