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3 years ago

9

Determine the number and type of solutions to the equation 5+x+10=0

1 answer:

Doss [256]3 years ago

6 0

The answer is -15

x = -15 because 10+5=15 and 15 + -15 = 0

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Suppose y varies directly with x. If y = 6 when x = 2, find x when y = 12. 4 3

kobusy [5.1K]

$\bf \qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \textit{we also know that } \begin{cases} y=6\\ x=2 \end{cases}\implies 6=k(2)\implies \cfrac{6}{2}=k\implies 3=k \\\\\\ therefore\qquad \boxed{y=3x} \\\\\\ \textit{when y = 12, what is \underline{x}?}\qquad 12=3x\implies \cfrac{12}{3}=x\implies 4=x$

6 0

3 years ago

How do you do this question?

ohaa [14]

Step-by-step explanation:

The marginal totals are the sum of each row and column.

For example, the total number of sophomores is 120 + 302 = 422.

See picture of table with marginal totals filled in.

3 0

3 years ago

A drapery panel measured 6 ft by 7 ft. Find how many square feet of material are needed for six panels.

Vera_Pavlovna [14]

Answer:

6 metals

Step-by-step explanation:

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3 years ago

Terry flips a coin 150 times.Make a prediction that the coin will come up tales

Vinvika [58]

Answer:

its either C or D

Step-by-step explanation:

there are 2 possible outcomes for getting either heads or tails so if we divided 150 by 2 we get 75, so about 75 times you could get tails.

so maybe it is D, but im not sure

5 0

3 years ago

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Chris plants 40 pumpkin seeds in 5 equal rows. how many seeds does Chris plant in each row?

Studentka2010 [4]

40/5=8

You need 8 seeds in each row

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3 years ago

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