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DaniilM [7]
3 years ago
13

Solve for x.

la1" title=" \frac{x}{3} = \frac{5}{8} " alt=" \frac{x}{3} = \frac{5}{8} " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Alja [10]3 years ago
8 0
This is proportion,
so general rule is
 \frac{a}{b} = \frac{c}{d} , 
\\ \\ a = \frac{bc}{d} , 
\\ \\ x= \frac{3*5}{8} =1.875



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the cost of building an airplane with 200 seats is about 100$ million if the cost in million of dollars c is proportional to the
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Answer:

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Step-by-step explanation:

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3 years ago
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After 2 week he has used 8 1/2 cups of dog food after 5 week he has used 21 1/4 cups construct a function in the form y =mx+ to
gladu [14]

Answer:

<em> y = 4.25x</em>

Step-by-step explanation:

Given that:

After 2 week he has used 8 1/2 cups of dog food after 5 week he has used 21 1/4 cups, we can write this in coordinate form (x, y) where;

y is the amount of dog food

x is the time in weeks

The coordinates are (2, 8 1/2) and (5, 21 1/4)

get the slope m:

m = y2-y1/x2-x1

m = (21 1/4 - 8 1/2)/5-2

m = (85/4-17/2)/3

m = (85-34/4)/3

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Get the intercept c:

Substitute any of the points say (2, 17/2) and m = 51/12 into the equation

y = mx+c

17/2 = 51/12(2) + c

17/2 = 51/6 + c

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c = 51-51/6

c = 0

Get the required equation:

substitute m - 4.25 and c = 0 into y = mx+c

y = 4.25x + 0

<em>Hence the required equation is y = 4.25x</em>

<em></em>

8 0
3 years ago
Sarah wants to buy carpet for a square room with an area of 400sq ft.
zavuch27 [327]

Sarah wants to buy a carpet for a square room with an area of 400sq ft.

the length of the room is 20ft.

Area is a quantity that describes the extent of an area on a plane or curved surface. The area of ​​a planar region or planar region refers to the area of ​​a shape or planar layer, and surface area refers to the area of ​​an open surface or boundary of a three-dimensional object. Wikipedia

The area is the area occupied by a two-dimensional figure. That is, it is a quantity that measures the number of unit squares that cover the surface of a closed figure. The standard unit of area is the square unit, commonly expressed in square inches, square feet, and so on.

Learn more about area here

brainly.com/question/17713367

#SPJ1

6 0
1 year ago
Answer this quick I have 20 minutes<br> 25 points
e-lub [12.9K]

The answer is A. You can comment if u want an explanation :)

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2 years ago
Three more than eight times a number is equal to 19
djverab [1.8K]
19-3=16
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