Let x = amount of appliances Jack sold
Let y = amount of appliances Dion sold.
We need to construct a system of equations to solve this problem
33 = x + y
y = 2x - 3.
Let's solve this system of equations by substitution.
33 = x + (2x - 3). Combine like terms.
33 = 3x - 3. Add 3 to both sides.
36 = 3x. Divide both sides by 3
12 = x. Plug this value into one of our original equations.
33 = 12 + y. Subtract 12 from both sides
y = 21
Jack sold 12 appliances and Dion sold 21 appliances.
Answer:
A. x=√60
Step-by-step explanation:
Divide 4 in half because you are solving half of an isosceles triangle
You formula is x²+2²=8²
Square root what you can: x²+4=64
Isolate the variable: x²=60
Square root both sides, x=√60
Answer:
look it up
Step-by-step explanation:
Answer: 9 1/3 - 2/3 = 8 2/3 .
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Note: If the answer were "8 1/3" ;
then: "8 1/3 + 2/3 =? 9 1/3 ? "
→ "8 1/3 + 2/3 = 8 3/3 = 8 + 1 = 9 = only "9" ;
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So the answer has to be MORE than "8 1/3"
Try "8 2/3" → "8 2/3 + 2/3 =? 9 1/3?" ?? ;
→ "8 2/3 + 2/3 = 8 4/3 = 8 + 1 1/3 = 9 1/3 " → Yes!
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So, the answer is: "8 2/3" .
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Another method:
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Given the problem: "<span>9 1/3 - 2/3 " ;
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Note that: "2/3 = 1/3 + 1/3"
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So, "</span><span>9 1/3 - 2/3 = 9 1/3 - (1/3 + 1/3) = 9 1/3 - 1/3 - 1/3 = ?
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Start with: "</span>9 1/3 - 2/3" = 9. Then 9 - 1/3 = 8 3/3 - 1/3 = 8 2/3.
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</span>Another method:
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Given the problem:
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"9 1/3 - 2/3 = ?? " ;
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Convert "9 1/3" into "28/3" ; ("3*9 = 27"); ("27+1=28");
(The "3" comes from the "3" in the: "1/3" portion.)
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So, we rewrite as:
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28/3 - 2/3 = (28 - 2) / 3 = 26/3 ; or, 8 2/3 .
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