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xxTIMURxx [149]
3 years ago
11

A local fun raiser collected 525$ for a local children's hostpital one person donated 45$ and the donated 75$ the rest of the mo

ney came in equal amounts from 27 other people
Mathematics
1 answer:
KengaRu [80]3 years ago
5 0

Answer:

everyone else donated 15 dollars

Step-by-step explanation:

525 minus 45 and then minus 75 and then divide by 27

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What will happen to the graph of the line y = -54x + 3 if you change -54 to 54?
viva [34]

Answer:

Graph the line using the slope and y-intercept, or two points.

Slope:  

1

y-intercept:  ( 0 , 0 ) x y 0 0 1 1

6 0
4 years ago
A collection of quarters and nickels is worth $14.80. There are 88 coins in all.
ycow [4]
So the equaiton is

number of nickes=n
number of quarters=q

if you have 1 quarter then you have 25 cents so we will represent like this
25q

and nickles is 5n
14.50=1450 cents

so
25q+5n=1480
q+n=88
subtract q from both sides
n=88-q
subsitute into first equation
25q+5(88-q)=1480
25q+440-5q=1480
add like terms
20q+440=1480
subtract 440 from both sides
20q=1040
divide both sdies by 20
q=52
there were 52 quarters
25(52)+5n=1480
1300+5n=1480
subtract 1300 from both sides
5n=180
divide both sides by 5
n=36
there were 36 nickels


nickles=36
quarters=52
8 0
4 years ago
The area of a rectangle is 72cm square. Length,/, of the rectangle is 6 cm longer than the width w
Butoxors [25]
As you haven't specifically stated what exactly the question is, I will be assuming that the question is most likely asking for what the dimensions ( length and width ) of the rectangle is. With this in mind, I will be answering the question so here I go...


STEP-BY-STEP SOLUTION:

Let's solve this problem step-by-step.

Let's first establish the formula for the area of a rectangle as displayed below:

Area = Length × Width

A = lw

From this, we will establish the values for each of the parts in the area formula using the information given in the problem as displayed below:

A = 72cm^2

l = w + 6

w = w

Now, we will substitute these values into the area formula and then make ( w ) the subject as displayed below:

A = lw

72 = ( w + 6 ) ( w )

72 = w ( w + 6 )

72 = w^2 + 6w

0 = w^2 + 6w - 72

0 = w^2 + 12w - 6w - 72

0 = w ( w + 12 ) - 6 ( w + 12 )

0 = ( w + 12 ) ( w - 6 )


w + 12 = 0

w = 0 - 12

w = - 12


w - 6 = 0

w = 0 + 6

w = 6

As the answer must be positive as measurements are always positive, the answer must be the option which is a positive number.

Therefore:

w = 6

Using the equation we made for the length before, we can substitute the value of ( w ) to obtain the value of the length as displayed below:

l = w + 6

l = ( 6 ) + 6

l = 12


FINAL ANSWER:

The dimensions of the rectangle are:

Length = 12cm

Width = 6cm


Please mark as brainliest if this was helpful! : )
Thank you <3
7 0
4 years ago
If you can run 4 laps in 5.25 <br> minutes, how many laps can <br> Do you run in 20 minutes?
GREYUIT [131]

Answer:

105

Step-by-step explanation:

7 0
3 years ago
1-66.
Andreas93 [3]

The Area of rectangle = 80 unit².

<h3>What is Area of rectangle?</h3>

The area can be defined as the amount of space covered by a flat surface of a particular shape. It is measured in terms of the "number of" square units (square centimeters, square inches, square feet, etc.) The area of a rectangle is the number of unit squares that can fit into a rectangle. Some examples of rectangular shapes are the flat surfaces of laptop monitors, blackboards, painting canvas, etc. You can use the formula of the area of a rectangle to find the space occupied by these objects. For example, let us consider a rectangle of length 4 inches and width 3 inches.

from figure (a)

DE= 40/8 = 5

BC= 100/5 = 20

Now,

AC= AB + BC=  8+ 20 = 28

CE= CD + DE = 10+5= 15

So, area of rectangle

= AC* CE

= 28* 15

= 420

Now, from figure (b)

CD= 24/12= 2

DE= 12/4 = 3

AC= AB+ BC= 14+ 4= 16

CE= CD + DE= 2+3 = 5

So, Area of rectangle= 16*5 = 80 unit²

Learn more about area of rectangle here:

brainly.com/question/237997

#SPJ1

7 0
2 years ago
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