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kirill115 [55]
3 years ago
8

The sum of five times a number and -6 is -2

Mathematics
1 answer:
koban [17]3 years ago
7 0
So,

"The sum of five times a number and -6"
5n + -6 or 5n - 6

"is -2"
= -2

5n - 6 = -2

Add 6 to both sides.
5n = 4

Divide both sides by 5.
n =  \frac{4}{5} \ or\ 0.8\ or\ 80\ percent
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To make a profit, a clothing store sells jeans at 115% the amount they paid for them. How much did the store pay for the jeans s
Svetllana [295]

Answer:

The store paid 6.67 times the profit made on the jeans

Step-by-step explanation:

Let the amount the clothing store pay for Jean be X

Let the amount the clothing store sells Jean be Y = X ×1.15

The profit (P) made is the difference between amount the clothing store sells Jean and the amount paid for Jean = Y - X = 1.15X - X

Profit (P)  = 0.15X

X =  P/0.15 = 6.67P

Therefore, the store paid 6.67 times the profit made on the jeans

8 0
3 years ago
Please help me with this question.
kow [346]
They are equivalent. combine like terms on the first one and 9x-4x+25 can be simplified to 5x+25.
6 0
3 years ago
In a group of eighteen people, each person shakes hands once with each other person in the group. How many handshakes will occur
miv72 [106K]

The number of handshakes that will occur in a group of eighteen people if each person shakes hands once with each other person in the group is 153 handshakes

In order to determine the number of handshakes that will occur among 18 people, that is, the number of ways we can choose 2 persons from 18 people.

∴ The number of handshakes = ^{18}C_{2}

^{18}C_{2} = \frac{18!}{(18-2)!2!}

^{18}C_{2} = \frac{18!}{16!2!}

^{18}C_{2} = \frac{18\times17\times16!}{16!\times2!}

^{18}C_{2} = \frac{18\times17}{2\times1}

^{18}C_{2} = \frac{306}{2}

^{18}C_{2} = 153

∴ The number of handshakes = 153 handshakes

Hence. 153 handshakes will occur in a group of eighteen people if each person shakes hands once with each other person in the group.

Learn more here: brainly.com/question/1991469

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2 years ago
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Vika [28.1K]
Answer is 1704 and to explain just put that you added to get your final answer
4 0
3 years ago
Read 2 more answers
The profit of a company in thousands of dollars is given by the quadratic function P(x) = 3000 + 1200x - 6x2 where x is the amou
Ganezh [65]
P(x) = 3000 + 1200x - 6x²

P'(x) = 1200 - 12x

1200 - 12x = 0

- 12x = - 1200

x = 100<span>
Shoutout to @dferreiraalves 


Your answer is: x = 100 

Have an amazing day and stay hopeful!

</span>
8 0
3 years ago
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