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Nesterboy [21]
3 years ago
6

X+y=27 x-y=1 What is x? What is y?

Mathematics
2 answers:
Zina [86]3 years ago
8 0

Answer:

x= 14 y= 13

Step-by-step explanation:

Use substitution or elimination

Art [367]3 years ago
7 0

Answer:

Y= 13 X= 14

Step-by-step explanation:

X-Y=1 (add Y on both sides to cancel it out)

X=1+Y (now we pug in this for the next equation)

X+Y=27 is now (1+Y)+Y=27

1+Y+Y=27 (Combine like terms)

1+2Y=27 (Subtract 1 on both sides to cancel it out)

2Y=26 (Divide by 2 on both sides to cancel it out)

Y=13 (Now we plug it into the another equation)

X + Y = 27 is now X + 13 = 27

X+13=27 (subtract 13 on both sides)

X=14

ALWAYS CHECK YOUR ANSWER BY PLUGGING IT IN!!!

X-Y=1 is 14-13=1 Which is correct!!

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The price of a video game is $35.60. If you purchase the video game for $30.26 with a coupon, what percent of the original price
topjm [15]
(30.26/35.6)*100= 85%

check: .85 * 35.6 = 30.26
4 0
3 years ago
IF IT IS 13.OO IN SOUTH AFRICA, WHAT TIME IS IT IN LONDON
Sati [7]
It would be 12:00 in London if its 13:00/1:00 in South Africa 
7 0
2 years ago
Evaluate the expression -2cd if a = -8 b = 2 c = -5 d = 6
Elza [17]

Answer:

60

Step-by-step explanation:

Replace c and d with -5 and 6.

-2*-5*6

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10*6=60

The expression is equal to 60.

-hope it helps

5 0
2 years ago
25. a 2018 pew research center survey found that more americans believe they could give up their televisions than could give up
geniusboy [140]

(a)Probability that a person could give up cell phone = 0.48

(b)Probability that a person who could give up her cell phone also could give up television is 0.65

(c) Probability that a person who could not give up a cell phone could give up television is 0.73

What is Probability?

Calculating the likelihood of experiments happening is one of the branches of mathematics known as probability. We can determine everything from the likelihood of receiving heads or tails when tossing a coin to the likelihood of making a research blunder, for instance, using a probability. It is crucial to grasp this branch's most fundamental concepts in order to fully comprehend it, including the formula for computing probabilities in equiprobable sample spaces, the likelihood of two events joining together, the probability of the complementary event, etc.

According to  the given question:

a. Probability that a person could give up cell phone = 0.48

b. Probability that a person who could give up her cell phone also could give up television

= P(give up cell phone and TV)/p(give up cell phone)

= 0.31/0.48

= 0.6458

= 0.65

c. Probability that a person who could not give up a cell phone could give up television is

= P(could not give up cellphone and could give up TV)/P(could not give up cell phone)

= 0.38/0.52

= 0.73

d. The probability a person could give up television is higher for persons who couldn't give up cell phones than for those who could give up their cell phones.

Hence,

(a)Probability that a person could give up cell phone = 0.48

(b)Probability that a person who could give up her cell phone also could give up television is 0.65

(c) Probability that a person who could not give up a cell phone could give up television is 0.73

To learn more about Probability, visit:

brainly.com/question/13604758

#SPJ4

5 0
1 year ago
Does anyone know ill give brainliest answer if you know
vichka [17]

Answer:

A

Step-by-step explanation:

please please please mark as brainliest

6 0
3 years ago
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