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julsineya [31]
3 years ago
11

Solve the simultaneous equations 5x−y=8

Mathematics
1 answer:
Igoryamba3 years ago
4 0
<span>5x−y=8 ; y = 5x - 8
7x+4y=22

substitute </span>y = 5x - 8 into 7x+4y=22

7x+4y=22
7x+4(5x - 8) = 22
7x + 20x - 32 = 22
27x = 54
x = 2

y = 5x - 8
y = 5(2)- 8
y = 10 - 8
y = 2

answer: x = 2 y = 2 or (2,2)

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15 points guys.
Rudiy27
Hello there.

Question: <span>Jamie has a deck of 60 sports cards, of which some are baseball cards and some are football cards. Jamie pulls out a card randomly from the deck, records its type, and replaces it in the deck. Jamie has already recorded six baseball cards and nine football cards. Based on these data, what is, most likely, the number of baseball cards in the deck?
12
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Answer: You could use ratio to figure this out.
6:9 = 15
6 baseball for 9 football cards
Divide the total by the amount already known
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Multiply all values by 4.
6 x 4 = 24.
9 x 4 = 36.

In short, the answer is 24.

Hope This Helps You!
Good Luck Studying ^-^


</span>
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Whay is the value of m in the equation when 1\2m-3/4n=16 when n is 8
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3 years ago
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Please answer my question bcz I can’t understand
RUDIKE [14]
Please send more context as of the "green numbers".

For the multiplication,

i 49 x 10 = 490
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ii 2.3 <span>÷ 10 = 0.23
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iii 0.034 x 1000 = 34
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Hope this helps :)</span>
3 0
3 years ago
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