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nikitadnepr [17]
4 years ago
5

The value of 

Mathematics
1 answer:
nataly862011 [7]4 years ago
5 0

Answer:

y = 17.5

Step-by-step explanation:

Given that y is directly proportional to x then the equation relating them is

y = kx ← k is the constant of proportion

To find k use the condition y = 42 when x = 84, then

42 = 84k ( divide both sides by 84 )

0.5 = k

y = 0.5x ← equation of proportion

When x = 35, then

y = 0.5 × 35 = 17.5

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ki77a [65]
10^3=10*10*10=1000
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3 years ago
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Two points are separated on the ground by a distance of 43 km. Can they be placed on a 1 / 25000th map with dimensions 1.32 m on
Wittaler [7]

Answer:

No

Explanation:

The distance between the two points on the ground = 43km

\text{Scale}=\frac{1}{25000}

First, we calculate the distance between the two points in meters.

• 43km = 43,000 m.

Next, determine the distance it will take using the scale.

\begin{gathered} \frac{1}{25000}=\frac{x}{43000} \\ 25000x=43000 \\ x=\frac{43000}{25000} \\ x=1.72m \end{gathered}

The distance between the points using the scale is 1.72m.

Next, we see that the dimensions (1.32 m by 0.85 m) are smaller than the length.

As a final check, calculate the length of the diagonal of the map. The diagonal is usually the longest part.

\text{Diagonal}=\sqrt[]{1.32^2+0.85^2}=1.57m

Since 1.57m is still less than 1.72m, the two points cannot be placed on the map.

7 0
1 year ago
Find the equation of the parabola in the graph. The vertex is at (0,0) x^2=-8/3 y^2=-64 y^2 = -8/3x y^2= 8/3x
TiliK225 [7]
Y2 = (4,5) I HOLE IT HELPED YOU
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3 years ago
What letter follows next in this sequence?<br> A, d, i, p.
vivado [14]
A to D - 2 letters in between

D to I - 4 letters in between

I to P - 6 letters in between

P to Y - 8 letters in between

the answer should be Y.
hope this helps :)



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3 years ago
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Graph the following equation on the graph C = 7250 + 205s
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Answer:

  see attached

Step-by-step explanation:

This is a difficult graph to make, because none of the points are on any grid intersections.

At the left (s=0), it starts 1/4 of the distance up from 7000 toward 8000.

At the right (s=10), it crosses 3/10 of the distance up from 9000 toward 10,000.

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