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Readme [11.4K]
3 years ago
7

The sum of 6 times a number and 8 times another number is 12. The difference of those numbers is 9. What are the two numbers

Mathematics
1 answer:
Inga [223]3 years ago
6 0

Answer:

(x,y): (6 , -3) or (-30/7 , 33/7)

Step-by-step explanation:

6x + 8y = 12

x = y + 9 or   y = x+ 9

if x = y+9

6*(y+9) + 8y = 12

14y = -42

y = -3 and x = 6

if y = x+9

6x + 8*(x+9) = 12

14x = -60

x = -30/7   and y = 33/7

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kicyunya [14]
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QS = 3v + 2
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TV = 7v
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5 0
3 years ago
Caroline's favorite animal is the dolphin. One of the dolphins in the tank is 4 meters long. What is its length in centimeters?​
IrinaK [193]

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Step-by-step explanation:

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2 years ago
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4 years ago
Perimeter of an isosceles triangle is 90 m. If the length of the two equal sides is three fourth of the unequal side , find the
Sveta_85 [38]

Answer:

The length of the equal side is 27 meters each and that of the unequal side is 36 meters

Step-by-step explanation:

An isosceles triangle is a triangle with two sides being equal (also two equal base angles).

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x + x + y = 90

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But the length of the equal side is  three fourth of the unequal side, i.e x = 3/4y

Therefore:

2(3/4y) + y = 90

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3 years ago
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Answer:

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3 years ago
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