4 years ago

5 divided by twice the value of x

Mathematics

1 answer:

Ray Of Light [21]4 years ago

8 0

Whats the value of X?

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4. Sean bought 1.8 pounds of gummy bears and 0.6 pounds of jelly beans and paid $10.26. He went back to the store the following

valkas [14]

Let

the price of gummy bears per pound = x

the price of jelly beans per pound = y

$\begin{gathered} 1.8x+0.6y=10.26 \\ 1.2x+1.5y=15.09 \\ 1.2x=15.09-1.5y \\ x=12.575-1.25y \\ \\ 1.8(12.575-1.25y)+0.6y=10.26 \\ 22.635-2.25y+0.6y=10.26 \\ -1.65y=10.26-22.635 \\ -1.65y=-12.375 \\ y=\frac{-12.375}{-1.65} \\ y=7.5 \\ \\ 1.8x+0.6y=10.26 \\ 1.8x+0.6(7.5)=10.26 \\ 1.8x+4.5=10.26 \\ 1.8x=10.26-4.5 \\ 1.8x=5.76 \\ x=\frac{5.76}{1.8} \\ x=3.2 \end{gathered}$

price per pound of gummy bear = $3.2

price per pound of jelly beans = $7.5

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2 years ago

Write an equation whose graph is a line perpendicular to the graph of x = -7 and which

Travka [436]

Answer:

y = 1

They will pass through each other perpendicular, also you can look up graph in chrome and use a free graph.

Step-by-step explanation:

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3 years ago

2x + 6 = 0

Harlamova29_29 [7]

Answer:

The answer is x=3. YOU add the 6 to the zero and then divide the 2x by 6 and you get 3

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4 years ago

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Math question help pls

zimovet [89]

Answer:

you would have to multiply times 4

Step-by-step explanation:

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3 years ago

What number must be added to -7 to get - 13? (A.) 7 (B.) -7 (C.) 6 (D.) -6

Marizza181 [45]

Answer:

Step-by-step explanation:

Because -7+6 would be -1 and two negatives have to add together to get a lesser negative number. Also YOU COULD HAVE JUST USED A CALCULATOR!!!!!!

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3 years ago