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Vladimir [108]
3 years ago
14

Which of the following is the most appropriate unit to describe the rate of the cost of gasoline? Dollars per gallon, because th

e dependent quantity is the gallons Dollars per gallon, because the dependent quantity is the dollars Gallons per dollar, because the dependent quantity is the gallons Gallons per dollar, because the dependent quantity is the dollars
Mathematics
1 answer:
Stolb23 [73]3 years ago
7 0
Gallons per dollar, because the dependent quantity is the dollars
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I need help with geometry
quester [9]

Answeryeehaw

Step-by-step explanation:

8 0
3 years ago
Solve the x.<br> 1. 11x + 9 = 40 - 47<br> 2. 2x – 8 - 6x = 90<br> 3. 5 (3x – 4) = x+6+ 12x
ratelena [41]
1. 11x+9=-7
-9 -9
11x=-16
/11 /11
x= -16/11

2. 2x-8-6x=90
2x-6x=-4x
-4x-8=90
+8 +8
-4x=98
/-4 /-4
x=-24.5


3. 5(3x-4)=x+6+12x
15x-20=13x+6
-13x. -13x
2x-20=6
+20. +20
2x=26
/2. /2
x=13
8 0
3 years ago
How many kilometers are in 765 yards? 1 yard = 3 feet 1 mile = 5,280 feet 1 kilometer = 0.621 miles
luda_lava [24]

Answer:

There are 0.70km in 765 yards.

Step-by-step explanation:

This is a problem of conversion of units, that can be solved by multiple rule of three's.

The first step is converting 765 yards to feet. We have that each yard has 3 feet, so

1 yard- 3 feet

765 yards - x feet

x = 765*3

x = 2295

So, in 765 yards there are 2295 feet.

Now, we have to convert 2295 feet to miles. Each mile has 5280 feet, so:

1 miles - 5280 feet

x miles - 2295 feet

5280x = 2295

x = 0.435 miles

So, in 765 yards there are 2295 feet which is 0.435 miles

Now, the final step is converting from miles to kilometers. Each km has 0.621 miles, so:

1km - 0.621 miles

xkm - 0.435 miles

0.621x = 0.435

x = 0.70km

So, there are 0.70km in 765 yards.

7 0
3 years ago
mary has 39 square feet of patio bricks. each square brick has sides 1 foot long. what is the greatest perimeter of a rectangle
bearhunter [10]

-- The smallest perimeter you can make with a certain area
is a circle.

-- The NEXT smallest perimeter with the same area is a square.

   With 1-ft by 1-ft square bricks, the shortest perimeter she could
make would be by using her bricks to make it as square as possible. 
Without cutting bricks into pieces, the best she could do would be  

                           (13 bricks) x (3 bricks) .

                            =    (13-ft) x (3-ft)

           Perimeter = (2 x length) + (2 x width)

                             = (2 x 13-ft)  +  (2 x 3-ft) 
                           
                             =      (26-ft)  +  (6-ft)  =  32 feet  <== shortest perimeter.

-- Then, the more UNSQUARE you make it, the more perimeter
it takes to enclose the same area.  That means Mary has to make
a rectangle as long and skinny as she can.

The longest perimeter she can make (without cutting bricks into
pieces) is    (39 bricks) x (1 brick) .

                        = (39-ft)  x  (1-ft) .

    Perimeter  =  (2 x length) + (2 x width)

                       =   (2 x 39-ft)  +  (2 x 1-ft)

                       =        (78-ft)  +  (2-ft)     =     80 feet .    

What she'll have then is a brick path, 39 feet long and 1 foot wide,
and when you walk on it, you'll need to try hard to avoid falling off
because it's only 1 foot wide.  

7 0
4 years ago
All rectangles are quadrilaterals.<br><br><br> TrueFalse
mariarad [96]

Answer:

yep

Step-by-step explanation:

yes always

5 0
3 years ago
Read 2 more answers
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