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kkurt [141]
2 years ago
11

The variables x and y vary directly. Given the equation y = 2x , find the value of x when

Mathematics
2 answers:
anastassius [24]2 years ago
4 0
Answer:
The answers B, 5


Whitepunk [10]2 years ago
3 0
The answer for this question is 5
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PLS HELP ME, PLS THIS IS DUE FIRST CORRECT ANSWER GETS BRAINLIEST​
AysviL [449]

Answer:

Step-by-step explanation:

The first choice is correct

The rate is 20 per dog, thus we get the equation:

c= 20d

However the first dog is free, so the equation becomes

c = 20(d - 1)

And he also has a walking fee of 85 dollars and thus the equation becomes

c= 85 + 20(d-1)

5 0
2 years ago
A solid oblique pyramid has an equilateral triangle as a base with an edge length of 4 cm and an area of 12 cm2. What is the vol
Pavel [41]

Solution:

Let me define pyramid first.A pyramid is a Polyhedron , whose base  can be any polygon and it's faces are triangular which meet at a point called vertex.

Volume of Pyramid =  \frac{1}{2}\times{\text{Area of Base}\times{\text{Height}

Side of base which is an equilateral triangle= 4 cm

Area of whole pyramid = 12 square cm

Area of Equilateral triangle having side 4 cm=\frac{\sqrt3}{4}\times(Side)^2=\frac{\sqrt3}{4}\times(4)^2=4 \sqrt3 cm²

So, Area of three triangle which are faces of pyramid = (12 - 4 √3)cm²

Area of triangle = \frac{1}{2} \times (Base)\times(Height)

12 - 4 √3= \frac{1}{2} \times (4)\times(Height)

Height =\frac{12-4\sqrt3}{2}

Height=(6-2√3) cm

Volume of pyramid = Area of Equilateral triangle which is it's Base × Height of Pyramid

          =4√3 × (6-2√3) cm³

           =(24 √3 -24)

           = 24 (1.732-1)

          =24 × 0.732

          =17.568 cm³



8 0
3 years ago
Read 2 more answers
How is 6/6 equivalent to 1
sergij07 [2.7K]
Because the numerater and denomenater are = hence 1/1, 2/2, 3/3, 4/4 5/5, 6/6, 7/7, 8/8, etc. are all = to one
hope this helps :)
5 0
3 years ago
Read 2 more answers
Winnie has 7 soccer trophies she wants to arrange in an array. How many different arrays are possible?
notka56 [123]

Answer:

5040 possible arrangements

Step-by-step explanation:

Given

Trophies = 7

Required

Possible arrangements

The 1st can be placed in any 7 positions

The 2nd, in 6 positions

-----

--

-

Up till the last in 1 position

So, the number of arrangements is:

Arrangements = 7 * 6 * 5 * 4 * 3 * 2 * 1

Arrangements = 5040\ ways

7 0
3 years ago
A ribbon that is 100 centimeters long is being cut into pieces that are 4.5 centimeters each. Which of the following is the grea
NeTakaya

Answer:

22

Step-by-step explanation:

100/4.5 is 22.222..., so there are 22 whole ribbon pieces.

5 0
3 years ago
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