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maksim [4K]
3 years ago
12

A triangle has a perimeter of 91 cm. If the three sides of the triangle are n,4n - 2 and 5n - 7 what is the length of each side

Mathematics
1 answer:
sdas [7]3 years ago
5 0

Answer:

10,38,43

Step-by-step explanation:

n+4n-2+5n-7=91

10n=91+2+7

10n=100

n=10

4(10)-2=38

5(10)-7=43

if anything is unclear, ask freely.

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Leviafan [203]

using the vertical line test

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3 0
3 years ago
Benny wants to make cookies.To make cookies, he needs 7/3 cups of flour per batch of cookies.If Benny has 7 cups of flour, then
Amanda [17]

Answer:

With 7 cups of flour  3.13 batches of cookies can be made.

Step-by-step explanation:

The amount of flour needed per batch of cookies = 7/3 cups

=  2.33 cup

⇒ 1 batch of cookies = 2.33 cup of flour

or  the ratio of <u>cookie to flour =         1       :      2.33</u>

<u />

Now, the amount of flour Benny has = 7 cups

Let the total batches of cookie made = m

or, ratio of <u>cookie to flour =         m       :      7</u>

So, by the RATIO OF PROPORTIONALITY:

\frac{1}{2.23}  = \frac{m}{7 }

⇒ m = 7 /2.23

or, m   =  3.13

or,  total batches of cookie made = 3.13

Hence, from 7 cups of flour  3.13 batches of cookies can be made.

8 0
3 years ago
What are the excluded values v^2 +1 / v^2 -v-6
valentina_108 [34]
The rational expression
\dfrac{v^{2}+1}{v^{2}-v-6}=\dfrac{v^{2}+1}{(v-3)(v+2)}
will be undefined where the denominator is zero. Values of v that make the denominator zero are v=3 and v=-2.

Excluded values of v are -2 and 3.
5 0
3 years ago
The discount on a pack of socks is 15%. It is on sale for $17. What is the original price of the pack of socks?
Aneli [31]

Answer:

$19.55

Step-by-step explanation:

17*0.15=2.55

17+2.55=19.55

4 0
3 years ago
12-1 one step equations
morpeh [17]

Answer:

1) n=-3

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3)n=-2

4)n=18

5)n=4

6)n=-15

7)n=14

8)n=-6

9)n=24

10)n=10

5 0
2 years ago
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