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ch4aika [34]
3 years ago
7

Define a variable and write an equation to model the situation,

Mathematics
1 answer:
lara31 [8.8K]3 years ago
6 0

Answer:

Let P = Perimeter of square

Let l = Length of the sides of the square

P = 4l

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A fruit stand has 28 apples, 20 oranges, and 12 pears. What is the ratio of apples to the total pieces of fruit?
ruslelena [56]
Data:
Apples = 28
Oranges = 20
Pears = 12

<span>What is the ratio of apples to the total pieces of fruit?
Solving:
</span>\frac{apples}{apples+oranges+pears} =  \frac{28}{28+20+12} =  \frac{28}{60} \frac{\div4}{\div4} \to\:\boxed{\boxed{ratio = \frac{7}{15}}}\end{array}}\qquad\quad\checkmark<span>
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5 0
2 years ago
If y varies directly as x and y = 21 when x = 5, find x when y = 42.
Lorico [155]

Answer: 10

<u>Step-by-step explanation:</u>

varies directly means: \frac{y}{x} = k

Step 1: solve for k   ⇒  \frac{21}{5} = k

Step 2: plug in the given value and k to solve for the missing value: \frac{42}{x} = \frac{21}{5}

42(5) = 21(x)

\frac{42(5)}{21} = \frac{21(x)}{21}

2(5) = x

10  = x


5 0
3 years ago
Equations for m equals three times n devided by the difference of 4p and 5 n
MrRa [10]
Numerator of the equation is 3*nDenominator is 4*p - 5*n The equation is m = 3n/(4p-5n) 

Numerator = 3*n
Denominator = 4*p - 5*n
Equation = [m = 3n/(4p-5n)]
4 0
3 years ago
Please fill this out will give BRAINLIST
bixtya [17]
Rectangle: a = w x l

Square: a = a^2

Triangle: a= b x h divided by 2

Parallelogram: a = HH

Trapezoid: a = a+b
2h


5 0
2 years ago
Read 2 more answers
A cone has a height of 5 inches and a radius of 4 inches. What is its volume?
Yuki888 [10]

9514 1400 393

Answer:

  83.73 in³

Step-by-step explanation:

It is appropriate to use the formula for the volume of a cone:

  V = (1/3)πr²h

  V = (1/3)(3.14)(4 in)²(5 in) ≈ 83.73 in³

The volume of the cone is about 83.73 in³.

5 0
3 years ago
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