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Juliette [100K]
3 years ago
15

Find x if 2, 6 , x are in continued proportion

Mathematics
1 answer:
zlopas [31]3 years ago
4 0
Do you have a picture if not you just mutilply and get 12 I think
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Mrs.Murphy's class is making kites for a science experiment.Each kite requires 3/5 of a yard of fabric.how many kites can they m
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They can make about 16 kites
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3+5^2??????????????????????????????????????
borishaifa [10]
The answer is 28
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The perimeter of the triangle is 37 cm. The lengths of the triangle are 3x, 2(x+4) and 2x+1. What is the value of x?
enot [183]

Answer:

4

Step-by-step explanation:

3x + 2(x + 4) + 2x+1 = 37                    Remove the brackets.

3x + 2x + 8 + 2x + 1 = 37                   Collect like terms

7x + 9 = 37                                         Subtract 9 from both sides

7x + 9-9 = 37 - 9                                Combine

7x = 28                                               Divide by 7

7x / 7 = 28/7

x = 4  

5 0
3 years ago
Jenny peddled her bike 30 miles in 40 minutes. If she traveled at the same speed, how far would she travel in 3 hours?
mart [117]

Answer:

Jenny cycles the grand distance of 29 and one third of a mile.

Step-by-step explanation:

I want to answer this using fractions and without multiplying by an awkward recurring decimal.

Cycling 11 miles in 45 minutes and continuing at the same speed means she will go 22 miles in 90 minutes

To scale up 90 mins to the required 120 mins (2 hours) multiply by 4/3.

22 x (4/3) = 88/3

Jenny will travel 88/3 miles in 2 hours.

Not happy with top heavy fractions?

Let's round up 88/3 to 90/3 by adding 2/3.

90/3 = 30 and to get back to the answer we just take away the two thirds we added when rounding up.

Jenny cycles the grand distance of 29 and one third of a mile.

I think that is the correct answer.

6 0
3 years ago
A building is 30 feet high. At a distance away from the building, an observer notices that the angle of elevation to the top of
yKpoI14uk [10]

Answer

As per the statement:

Height of the building(h)= 30 feet

Angle of elevation (\theta)= 41°

We have to find the distance of observer from the base of the building.

Using tangent ratio:

\tan \theta= \frac{\text{Opposite side}}{\text{Adjacent side}}

You can see the diagram as shown below.

Opposite side = height of the building = 30 feet.

Adjacent side = distance of observer from the base of the building = x (let)

Then;

\tan 41^{\circ}= \frac{30}{x}

0.86928673781 = \frac{30}{x}

By cross multiply we have;

0.86928673781x = 30

Divide by 0.86928673781 both sides we get;

x = 34.51 m

Therefore, the distance of observer from the base of the building is 34.51 m


7 0
3 years ago
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