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Dmitry_Shevchenko [17]
3 years ago
12

Any help at all is greatly appreciated??!!!

Mathematics
1 answer:
Reil [10]3 years ago
8 0

Answer:

A) x + 5y = -2

B) 2x -7y = 10

We multiply A) by -2

A) -2x -10y = 4 then we add B)

B) 2x -7y = 10

-17y = 14

y = -(14/17)  then plugging this into A)

A) x = -2 +-5*(-14/17)

A) x = -2 + 4.1176470588

A) x = 2.1176470588

Step-by-step explanation:

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the number of members in a club dropped from 80 to 52. what is the percent of decrease in the number of members
Illusion [34]
Percent of decrease :
Original - New / Original
so...
80 - 52 / 80 ---->
28/80
.35 multiply by 100 to get percent
35% increase Hope I helped if you have any questions let me know! :)



7 0
3 years ago
The price of a fan is $15. This price is 27% lower than last week.
Goshia [24]

The price of fan was 20 Dollars 55 cents last week.

Step-by-step explanation:

Let,

The price last week = x

As the price is 27% lower than last week, therefore

(100%-27%) * Price last week = $15

73% * x = 15

Solving the percentage;

\frac{73}{100}*x=15\\ Multiplying\ both\ sides\ by\ 100\\100*\frac{73x}{100} = 15*100\\73x=1500\\Dividing\ both\ sides\ by\ 73\\\frac{73x}{73} = \frac{1500}{73} \\x= 20.55

The price of fan was 20 Dollars 55 cents last week.

Keywords: Percentage, multiplication.

Learn more about percentages at:

  • brainly.com/question/2140933
  • brainly.com/question/2142762

#LearnwithBrainly

5 0
3 years ago
Wich expression can be used to find the slope of a line containing the points (-3,2) and (7,-1)
docker41 [41]
A(x_1;\ y_1);\ B(x_2;\ y_2)\\\\\text{The slope:}\ m=\dfrac{y_2-y_1}{x_2-x_1}


\text{We have:}\\(-3;\ 2)\to\ x_1=-3;\ y_1=2\\(7;\ -1)\to x_2=7;\ y_2=-1

\text{substitute}\\\\m=\dfrac{-1-2}{7-(-3)}=\dfrac{-3}{10}=-\dfrac{3}{10}
6 0
3 years ago
Which of the following choices describe the bases of a cylinder
shtirl [24]
You have not provided the choices, therefore, I cannot give exact answers.
However, I will try to help you out with some information.

A cylinder is a three-dimensional geometric solid.
It has the same shape as a soda can.

<u>As for the bases, they have the following properties:</u>
1- the bases have a circular (disc) shape
2- the bases are congruent to each other
3- the bases are parallel to each other

Hope this helps :)


8 0
3 years ago
Read 2 more answers
Roberto is dividing his baseball cards equally between himself, his brother, and his 5 friends. Roberto was left with 6 cards. H
telo118 [61]

Answer:

(7) 35  7 28

Step-by-step explanation:

5 0
3 years ago
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