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Oxana [17]
4 years ago
5

The difference of the square of a number and 18 is equal to 3 times that number. Find

Mathematics
1 answer:
ololo11 [35]4 years ago
7 0

Answer:

6.

Step-by-step explanation:

To solve this, you can set up an equation as such:

x²-18= 3x

Now, rearrange this to make it an equation in standard form:

x²-3x-18=0.

Simply turn this equation into factored form:

(x-6)(x+3)= 0.

The only positive solution here is x=6.

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A fruit stand has to decide what to charge for their produce. They need $5 for 1 Apple and 1 orange. They also need $15 for 3 ap
lakkis [162]

Answer:

x + y = 5

3x + 3y = 15

Step-by-step explanation:

let x represent apple and y represent orange

Hence x + y = 5

and 3x + 3y = 15

Solving both equations simutaneously

From first equation, x = 5-y

Substitute x=5-y into the second equation

3(5-y)+3y = 15

y= 0

x = 5-0 = 5

6 0
3 years ago
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Carrie often asks friends to play Among Us at lunch. Of the 5 games they play, Carrie wins 2 games. Consider this data. If she p
dlinn [17]

Answer:

8

Step-by-step explanation:

2 is 40% of 5, so if we stay within this data, then she will win 40% of the next 20 games she plays. 40% of 20 is 8, so she will win 8 games out of 20

3 0
3 years ago
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Need help with this math problem
ladessa [460]

Answer:

m<1: 51

m<2: 61

m<3: 29

Step-by-step explanation:

m<1 = 51, because to find the 3rd angle, you need to add the other two angles and then subtract 180 from that answer.

61 + 68 = 129

180 - 129 = 51

m<2 = 61, because it's a vertical angle, meaning that the angle that's opposite to it exactly, is the same. So since the angle opposite to m<2 is 61, that's what the answer would be.

m<3 = 29, because all you need to do is add 90 and 61, and then subtract 180 by the answer. I got 90 as one of the angle measurements because there's a right triangle, meaning it's 90. Then since we already know what angle 2 is (61) then all you need to do is add:

90 + 61 = 151

Then subtract:

180 - 151 = 29

8 0
4 years ago
What's is two sevenths divided by nine
forsale [732]
2/54 is the answer I think
6 0
3 years ago
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Which number is equal to 10^3
eduard

Answer: is 0.001

10^-3 = (1)/(10^3) move the negative exponent to the denominator (1)/(1000) simplify 10^3 in the denominator (1)/(1000) = 0.001

Step-by-step explanation:

Hope you have a great night

8 0
3 years ago
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