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Veronika [31]
2 years ago
8

Please help me understand how to work out these types of equations?

Mathematics
2 answers:
Mademuasel [1]2 years ago
5 0
Answer:
115.2 other solutions is 576/5, 115 1/5
Step by step explanation:
To divide by a fraction, multiply by the reciprocal of the fraction
2.4 x (12 x 4)
Then multiply 12 and 4 which is 48
2.4 x 48
Then multiply 2.4 x 48
which is 115.2
goldenfox [79]2 years ago
5 0

Answer:

48

Step-by-step explanation:

2.4 (12 / 1/4)

First you do distributive property (multiplying the number in front of the parenthesis).

28.8 / 0.6

Then you just do the math

48

It's pretty easy, but it just depends on how somebody explains it.

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a round swimming pool has a circumference of 66 feet. Carlos wants to buy a rope to put across the diameter of the pool. the rop
xxMikexx [17]

Answer:

  • $11.25
  • 21 ft

Step-by-step explanation:

The formula for the circumference of a circle in terms of diameter is ...

  C = πd

Then the diameter is ...

  d = C/π

If we use π ≈ 22/7 and C = 66 ft, then we find the diameter to be ...

  d = (66 ft)/(22/7) = (66 ft)(7/22) = 21 ft

The diameter of the pool is about 21 feet.

__

Since Carlos needs 4 more feet of rope, he will want to buy 25 feet of rope for a cost of ...

  (25 ft)($0.45 /ft) = $11.25

Carlos will pay $11.25 for the rope.

3 0
3 years ago
Please help me out!!!!!!!!
qaws [65]

Answer:

x = - 6

Step-by-step explanation:

Given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = - 9 when x = 3, thus

k = \frac{y}{x} = \frac{-9}{3} = - 3

y = - 3x ← equation of variation

When y = 18, then

18 = - 3x ( divide both sides by - 3 )

x = - 6

5 0
3 years ago
What is the sum of the 14th square number and the 6th square number?
son4ous [18]
14th square number = 196

6th square number = 36
5 0
3 years ago
I need the answer in under 34 min
MissTica

Answer:

I. 1 cup is $4.50

2 cups is $9.00

3 cups is $13.50

ll. 6 cups is $27.00

Step-by-step explanation:

Now since the number of cups is proportional to the total cost of frozen yoghurt,and the cost of 4 yoghurts cups where given .ie. $18.00

then 1 cup is $18/4 which is $4.50 per one cup, thus the other cost of cups are given.

therefore 6 cups is 6•18/4 which is $27.00.

hence 5 cups is 5•18/4 which is $22.50.

4 0
3 years ago
TWO MINUTES HURRY HELP ME PLEASE
Elis [28]

Answer:

x=-1

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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