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Sveta_85 [38]
3 years ago
10

For 3/4 (three fourths) of a pound of peanuts, Jimmy paid $2.25. What is

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
3 0
3 dollars pound because since it is 3/4 you can do: 2.25/3 and get 0.75. Thus means 0.75 is 1/4 a pound. 0.75 x 4 will get you dollars for pound. So 3
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3. How many solutions does the system of equations have? 2x=-10y+ 6 and x+5y=3
ozzi

Answer:

<h2>3. Infinitely many</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}ax+by=c\\dx+ey=f\end{array}\right\\\\(1)\\\text{if}\ a=d,\ b=e,\ c=f,\ \text{then the system of equations has infinitely many solutions}\\Example:\\\left\{\begin{array}{ccc}2x-3y=5\\2x-3y=5\end{array}\right\\(2)\\\text{if}\ a=d,\ b=e,\ c\neq f,\ \text{then the system of equations has no solution}\\Example:\\\left\{\begin{array}{ccc}2x-3y=5\\2x-3y=-5\end{array}\right

(3)\\\text{if}\ a\neq d\ \text{or}\ b\neq e,\ \text{then the system of equations has infinitely many solutions}\\Example:\\\left\{\begin{array}{ccc}x-3y=5\\2x-3y=5\end{array}\right

\text{We have:}\\\\\left\{\begin{array}{ccc}2x=-10y+6&\text{add 10y to both sides}\\x+5y=3\end{array}\right\\\left\{\begin{array}{ccc}2x+10y=6&\text{divide both sides by 2}\\x+5y=3\end{array}\right\\\left\{\begin{array}{ccc}x+5y=3\\x+5y=3\end{array}\right

4 0
3 years ago
If i run a 5.31 second in 40 meter what would i run in a 40 yard dash
-Dominant- [34]

Answer:

im not sure , sorry... i wish i could have helped

5 0
3 years ago
the product of three consecutive whole numbers is 990.what is the sum of the three consecutive whole numbers
konstantin123 [22]
The numbers are 9,10,11 . the sum being 20 :) hope this helped have a great day 
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3 years ago
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Katie was selling her necklaces at a garage sale. She sold 4 bead necklaces and 3 gem stone necklaces if each necklace cost $3 h
Mrrafil [7]

Answer: 21

Step-by-step explanation:

4 • 3 = 12

3•3=9

12+9= 21

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