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Aloiza [94]
3 years ago
10

What is kn+4f=9v, solve for n

Mathematics
1 answer:
Effectus [21]3 years ago
6 0
N= 4f/k + 9v /k that’s the answer
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Write and solve a proportion to answer the question.
kari74 [83]

Answer:

a = 25\% \: of \: 78 \\ a =\frac{25}{100} \times 78 \\ a =  \frac{1}{4}\times 78 \\  \boxed{a = 19.5}

<h3><u>a=19.5</u> is the right answer.</h3>
7 0
3 years ago
Read 2 more answers
10.6 &amp; 7.08 in simplest form? plz I need help
Inessa [10]
10.6 over 1 (10 over 10) ➡106 over 10
106 ÷ 2 over 10 ÷2 ➡53 over 5
10.6 ➡ 10 & 3 over 5 [10 3/5]
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7.08 over 1 (100 over 100) ➡708 over 100
708÷ 4 over 100÷4 = 177 over 25
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6 0
3 years ago
NO LINKS PLEASEEEEEEE
Sedbober [7]
The answer would be 6. 21/3.5=6
6 0
3 years ago
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The staff at a theater snack counter has found that 32 oz. of popcorn kernels makes enough to fill 20 small bags.How many small
jarptica [38.1K]
18 oz is equivalent to 1.125 pounds. If this is so, 1.125 pounds = 20 small bags. We need to figure out how much would fit 18 pounds.
18 / 1.125 = 16
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5 0
3 years ago
Suppose that the length of a certain rectangle is four centimeters more than three times its width. If the area of the rectangle
Oksana_A [137]

Answer:  The length and width of the rectangle are 19 cm and 5 cm respectively.

Step-by-step explanation:  Given hat the length of a rectangle is four centimeters more than three times its width and the area of the rectangle is 95 square centimeters.

We are to find the length and width of the rectangle.

Let W and L denote the width and the length respectively of the given rectangle.

Then, according to the given information, we have

L=3W+4~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

Since the area of a rectangle is the product of its length and width, so we must have

A=L\times W\\\\\Rightarrow 95=(3W+4)W\\\\\Rightarrow 3W^2+4W-95=0\\\\\Rightarrow 3W^2+19W-15W-95=0\\\\\Rightarrow W(3W+19)-5(3W+19)=0\\\\\Rightarrow (W-5)(3W+19)=0\\\\\Rightarrow W-5=0,~~~~~3W+19=0\\\\\Rightarrow W=5,~-\dfrac{19}{3}.

Since the width of the rectangle cannot be negative, so we get

W=5~\textup{cm}.

From equation (i), we get

L=3\times5+4=15+4=19~\textup{cm}.

Thus, the length and width of the rectangle are 19 cm and 5 cm respectively.

3 0
3 years ago
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