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bixtya [17]
3 years ago
8

Lucy has a coin collection of quarters from different states.The value of her collection is $9.50.How many quarters does she hav

e in her collection and what is the equation for this problem
Mathematics
2 answers:
marta [7]3 years ago
4 0

Answer:

38

Step-by-step explanation:

4 quarters in a dollar

4x9=36+2=38

Leona [35]3 years ago
3 0

Answer:

38 quarters

Step-by-step explanation:

write a equation for the word problem

0.25x=9.50

1 quarter: 25 cent

now you divided both sides by 0.25

0.25x/0.25 = 9.50/0.25

x= 38

Answer check:

substitute (x) for 38 to if your answer is right

0.25(38)= 9.50

9.5= 9.50

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Please help me! The answer choices are included in the picture.​
Murljashka [212]

Answer:

C

Step-by-step explanation:

Let's just look at the point G(3) = 3

this point only occurs through one equation which is

g(x) = (1/3)x^2

4 0
3 years ago
Read 2 more answers
The question says “The image shows the front of Bob’s barn.Bob plans on painting the front of his barn,not including the doors o
AleksandrR [38]

Bob need to paint 205 square feet.

Solution:

Length of the door = 7 ft

Breadth of the door = 5 ft

Area of the door = length × breadth

                            = 7 × 5

                            = 35

Area of the door = 35 ft²

The given image is a trapezoid.

Top base = 12 ft

Bottom base = 20 ft

Area of the trapezoid = \frac{1}{2} \times\text{sum of the parallel sides}\times\text{height}

                                    $=\frac{1}{2}\times(12+20)}\times15

                                    $=\frac{1}{2}\times 32\times15

                                    = 240

Area of the trapezoid =  240 ft²

Surface area to paint = Area of the trapezoid – Area of the door

                                    = 240 ft² – 35 ft²

                                    = 205 ft²

Hence Bob need to paint 205 square feet.

6 0
3 years ago
Kerille is reading a book at the rate of 4.5 pages per minute. What ordered pair on a graph of his reading rate would represent
viva [34]
This is a linear equation y = mx, where:
m= slope or reading rate:
x = the number of minutes
y = the number of pages read.

So the equation becomes: y = 4.5.x
How many minutes it will take to read 90 pages (y):
90 = 4.5.x    or x = 90/4.5  and x = 20 minutes
So the ordered pair will be (20,90)



5 0
3 years ago
The interquartile range of a data set is 10 units. What does this represent?
babunello [35]
The central 50 percent of data around average
4 0
3 years ago
Read 2 more answers
The cost C of moving rubble is proportional to the product of the mass M of the rubble and the distance D the rubble must be mov
Mandarinka [93]

Answer:

a) C(M,D) = KMD

b) $12,000                  

Step-by-step explanation:

We are given the following information in the question:

The cost C of moving rubble is proportional to the product of the mass M of the rubble and the distance D the rubble must be moved.

This can be written as:

a)

C \propto M\times D\\C = KMD,\\\text{where K is the constant of proportionality.}

C(M,D) = KMD

b) It costs 50 dollars to move 1 ton of rubble 1 mile

50 = K\times 1\times 1\\\Rightarrow K= 50

We have to find  cost to move 16 tons 15 miles.

Putting the values in the function:

C(16,15) = 50\times 16\times 15 = 12000

Thus, $12,00 is the cost to move 16 tons 15 miles.

3 0
2 years ago
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