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Talja [164]
3 years ago
15

15 acres decreased by 80% Find the new amount

Mathematics
1 answer:
Savatey [412]3 years ago
8 0
3 acres would be the new amount
You might be interested in
On a linear X temperature scale, water freezes at −115.0°X and boils at 325.0°X. On a linear Y temperature scale, water freezes
belka [17]

Answer:

The current temperature on the X scale is 1150 °X.

Step-by-step explanation:

Let is determine first the ratio of change in X linear temperature scale to change in Y linear temperature scale:

r = \frac{\Delta T_{X}}{\Delta T_{Y}}

r = \frac{325\,^{\circ}X-(-115\,^{\circ}X)}{-25\,^{\circ}Y - (-65.00\,^{\circ}Y)}

r = 11\,\frac{^{\circ}X}{^{\circ}Y}

The difference between current temperature in Y linear scale with respect to freezing point is:

\Delta T_{Y} = 50\,^{\circ}Y - (-65\,^{\circ}Y)

\Delta T_{Y} = 115\,^{\circ}Y

The change in X linear scale is:

\Delta T_{X} = r\cdot \Delta T_{Y}

\Delta T_{X} = \left(11\,\frac{^{\circ}X}{^{\circ}Y} \right)\cdot (115\,^{\circ}Y)

\Delta T_{X} = 1265\,^{\circ}X

Lastly, the current temperature on the X scale is:

T_{X} = -115\,^{\circ}X + 1265\,^{\circ}X

T_{X} = 1150\,^{\circ}X

The current temperature on the X scale is 1150 °X.

5 0
3 years ago
Write the following comparison as ratio reduced to lowest terms 194 inches to 17 feet
GaryK [48]
If you put it in fraction form and use PEMDAS to find the answer
7 0
3 years ago
Find 12 +13 - (-9)+(-19.4) +3.3
Rina8888 [55]

Answer:

17.9

Step-by-step explanation:

You could use PEMDAS but you don't really need to because this is just adding an subtracting.

5 0
3 years ago
Read 2 more answers
What is the equation of a line that passes through point R(3,7) and has a slope of 6?
djyliett [7]
The answer in slope intercept form is y = 6x-11

If you want the answer in standard form, then it would be 6x-y =11

notes:
* Slope intercept form is y = mx+b
* Standard form is Ax+By = C
=====================================

Explanation:

The given slope is m = 6
The line goes through (x,y) = (3,7)

Plug those three values into the equation below. Isolate b
y = mx+b
7 = 6*3+b
7 = 18+b
7-18 = 18+b-18 ... subtract 18 from both sides
-11 = b
b = -11

So because m = 6 and b = -11, this means y = mx+b turns into y = 6x-11

The answer in slope intercept form is y = 6x-11

To convert to standard form Ax+By = C, we just have to get all the x and y terms together on the same side. I'm going to move the y term to the right side and move the 11 to the left side

y = 6x-11
y+11 = 6x-11+11
y+11 = 6x
y+11-y = 6x-y
11 = 6x-y
6x-y = 11

The answer in standard form is 
6x-y = 11
which is a different way to write the same line

4 0
3 years ago
Match the given conditions to the number of triangles that can be constructed from them. The measures of two angles are 30 degre
Maurinko [17]

Answer:

One triangle

Step-by-step explanation:

The angles being fixed at 30° and 60° cause the legs to be fixed.

For the 30° angle, one side is the given side of 12, the other side is at a fixed position.

The same goes for the 60° angle.  

So both missing legs of the triangle are at fixed angles.  The missing angle is 90° (if one is 30° and the other is 60°, then the last angle must add up to 180°, so it is 90°)

Since the last angle is also fixed, it means that there is only one way for the legs to intersect to cause a 90° angle, so there is only one triangle that can be formed

4 0
3 years ago
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