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Fynjy0 [20]
3 years ago
10

Which proportion would you use to solve the following problem?

Mathematics
2 answers:
Anastasy [175]3 years ago
6 0

Answer:

20km

Step-by-step explanation:

its like 1st grade math?

also im posting so you can give the other dude brainliest

Juliette [100K]3 years ago
5 0

Answer:

They are 20 km away from each other,

Step-by-step explanation:

1cm=5km so 4cm=20km

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Jade ran 6 times around her neighborhood to complete a total of 1 mile. How many times will she need to run to complete 5/6 of m
svetlana [45]
Set up a proportion where number of times is on top and miles is on bottom:
6/1 = x/(5/6)
Cross-multiply:
6*(5/6) = 1*x
5 = x
She must run 5 times around her neighborhood.
7 0
3 years ago
The equation of line WX is y = −2x − 5. Write an equation of a line perpendicular to line WX in slope-intercept form that contai
densk [106]

Answer:

third option

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 2x - 5 ← is in slope- intercept form

with slope m = - 2

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-2} = \frac{1}{2} , then

y = \frac{1}{2} x + c ← is the partial equation

To find c substitute (- 1, 1) into the partial equation

1 = - \frac{1}{2} + c ⇒ c = 1 + \frac{1}{2} = \frac{3}{2}

y = \frac{1}{2} x + \frac{3}{2} ← equation of perpendicular line

7 0
3 years ago
what is the surface are of a colonial grain storage tank that has a height of 54 meters and a diameter of 18 meters? 1802m^2, 17
vodomira [7]
The tank has the shape of a cone
So, the area of the cone = π r²+ π r s

where r is the radius           
          s is the slant height = √(r²+h²)
          h is the height
given the diameter = 18 m and the height = 54 m
∴ r = 9 m  ,  h = 54 m
∴ s = √(r²+h²) = √(9² + 54²) = 54.745 m
∴ Area = π r²+ π r s
             = π * 9² + π * 9 * 54.745 ≈ 1802.3 m²

The correct answer is the first option 1802 m²

6 0
3 years ago
Elijah wraps a gift box in the shape of a triangular pyramid. The figure below shows a
PolarNik [594]
<h2>Understanding how to solve...</h2>

The base of each triangle is 11 ft, and the height of it is 9 ft.

And then, there are 4 of these triangles. So, as we know, when we do the formula for finding one triangle, we do SA=\frac{1}{2} *B*H. But if we have to do it for 2, then we will do... SA = B*H, and applying that same trick, if we have to do it for 4 of them, we will do SA =2*B*H

<h2>Finding answer:</h2>

B = 11

H = 9.53

SA = 2*B*H\\=2*11*9.53\\=2*104.83\\=209.66

<h2>Answer:</h2>

209.66ft² of wrapping paper was used

7 0
3 years ago
Given that R = 6x + 9y
Grace [21]

Answer:

11/3

Step-by-step explanation:

x=1, R=39, y=?

R=6x + 9y

(substitute the parameters into the equation)

39=6(1) + 9y

39= 6 + 9y

(collect like terms)

39 - 6 =9y

33=9y

(divide both sides by 9)

33/9=9y/9

11/3=y

therefore, y= 11/3

4 0
3 years ago
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