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Solnce55 [7]
3 years ago
15

How do i turn 80% 0f 86- i know the answer but i don't know how to do it

Mathematics
2 answers:
myrzilka [38]3 years ago
7 0

Answer:

68.8

Step-by-step explanation:

Let <em>x</em><em> </em>be 80% of 86.

To find 80% of 86

\frac{80}{100}  =  \frac{x}{86}

80 \times 86 = 100x

6880 = 100x

68.8 = x

Or you can simply do it as:

86 \times 80\%

86 \times  \frac{80}{100}

\frac{86 \times 80}{100}

\frac{6880}{100}

68.8

WITCHER [35]3 years ago
6 0

We know that <em>of</em><em> </em> refers to multiplication (from BODMAS)

% means per hundred, i.e., 1/100

So, 80% of 86 is:

(80/100) × 86

or (4/5) × 86

or 4 × 17.2

or 68.8

Hope you understand

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A house was purchased for $89,000. After 6 years the value of the house was $101,000. Find a linear equation that models the val
mamaluj [8]

Answer:  y = 2000x + 89000

Step-by-step explanation:

Given that;

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price after 6 years = $ 101,000

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therefore the linear equation that models the value of the house after x years will be;

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A membership at a yoga studio costs $35 per month. Write an equation for the cost of the membership, c, that you pay if you keep
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6 0
3 years ago
Please answer this question too! :D
Artyom0805 [142]

Answer:

A

Step-by-step explanation:

We can find the surface area of the object by adding the surface areas of each part. We have many rectangle faces to count and two triangular faces. Each has a formula for the area. We will find the area of each and then add them all together.

Triangle - 0.5 *b*h

Rectangle - b*h

<u>Triangles</u>

There are two triangles on either side. The height is 1.5. The base is 1.8.

0.5(1.5)(1.8)=1.35 meters squared

Since there are two, we will add 1.35+1.35 in our final calculation.

<u>Rectangles</u>

We will start by calculating the largest rectangle on the side. It has height of 4 and a base of 2.5 (shown above left).

4(2.5)=10

Since there are two (one we can see and one we can't), we will add 10+10 in our final calculation.

Next we calculate the top and bottom. The height is 3 and the base is 2.5 on top. But the bottom sticks out more and adds 1.8 to its base.

Top - 3(2.5)=7.5

Bottom-3(2.5+1.8)=12.9

Finally, we will calculate the front side and back(not visible) as well as the slant up front. The back side has height 4 and base 3. The front side has base 3 and height 4-1.5=2.5. The slant has base 2.3 and height 3.

Back - 4(3)=12

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Slant - 3(2.3)=6.9

We add all together for the total surface area: 1.35+1.35+10+10+7.5+12.9+12+7.5+6.9=69.5 meters squared.

5 0
3 years ago
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