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TEA [102]
3 years ago
13

The first jumbo jet was the Boeing 747, which is 70.5 meters long. The wingspan of a 747 is 60 meters. A model 747 has a wingspa

n of 80 centimeters. What should the length of the model be?
Mathematics
1 answer:
nydimaria [60]3 years ago
6 0

Answer:

94 cm

Step-by-step explanation:

Set up and solve an equation of ratios:

wingspan         length

60 meters        70.5 m

----------------- = ----------------

80 cm                   x

Cross multiplying:

(60 m)x = (70.5 m)(80 cm)

Solve for x by dividing both sides of this equation by 60 m:

x = (70.5 m)(80 cm) / (60 m) = 94 cm

The length of the model should be 94 cm.

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3 0
3 years ago
At the local nursery, 1/8 of the plants for sale are flowers and another 1/4 of them are bushes. What fraction of the plants for
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3 0
2 years ago
The pyramid shown has a height of 14 inches and a base area of 60 in2. Find the volume of the pyramid.
Kamila [148]

Volume of pyramid is 280 in^{3}.

The pyramid has a height 14 inches and a base area of 60 in2.

What is volume?

Volume is a three - dimensional quantity that is used to measure the capacity of a solid shape.

Volume of the pyramid = Area base X \frac{height}{3}

                                    = 60.\frac{14}{3}

                                    = 280 in^{3}

So the volume of pyramid = 280 in^{3}

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8 0
1 year ago
Solve the following quadratic equations by completing the square.<br><br> y^2-14y+48=0
NISA [10]

Answer:

  y = 6 or 8

Step-by-step explanation:

1. Subtract the constant:

  y^2 -14y = -48

2. Add the square of half the y-coefficient:

  y^2 -14y +49 = -48 +49

Write as a square, if you like:

  (y -7)^2 = 1

3. Take the square root:

  y -7 = ±√1 = ±1

4. Add the opposite of the constant on the left:

  y = 7 ±1  =  6 or 8

The solution is y = 6 or y = 8.

5 0
3 years ago
A car traveled 180 miles and used 6 gallons of gas. If the same car traveled 1,260 miles at the same rate, how many gallons of g
Luba_88 [7]

Answer:

180miles=6gallons

1260miles=?gallons

1260/180*6

=42 gallons

Step-by-step explanation:

6 0
2 years ago
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