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3 years ago

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A container has 10 oz of salt water containing 59% salt. Roberto added 20 oz of salt water containing 20% salt to the container.

What percent of the mixture in the container is salt.

1 answer:

zubka84 [21]3 years ago

4 0

Does it give u answer choices

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How many rows of seats are needed to seat 673 people at a concert when the rows seat 37 people each?

Rasek [7]

Answer:

18.189 rows

Step-by-step explanation:

673 / 37 = 18.189189189

Hope this helps!

5 0

3 years ago

What is the length of the vertical drop?

Sidana [21]

Let the value of the vertical drop be x
cos20°=x/11
x=0.9*11
x=9.9
Thus, the length of the vertical drop is 9.9 feet

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3 years ago

Which equation represents a line that passes through (2,-1/2) and has a slope of 3 ?

Anna11 [10]

Answer:

C. $y + \frac{1}{2} = 3(x - 2)$

Step-by-step explanation:

Given

$Point: (2,\frac{-1}{2})$

$Slope: 3$

Required

Equation of line

Let m represents the slope of the line;

m is calculated as thus

$m = \frac{y - y_1}{x - x_1}$

$where (x_1,y_1) = (2,\frac{-1}{2})$

$So; x_1 = 2; y_1 = \frac{-1}{2}$

$m = 3$

By substituting the right values in the formula above;

$m = \frac{y - y_1}{x - x_1}$ becomes

$3 = \frac{y - \frac{-1}{2}}{x - 2}$

Multiply both sides by $(x - 2)$

$3 *(x - 2) = \frac{y - \frac{-1}{2}}{x - 2} *(x - 2)$

$3 *(x - 2) = (y - \frac{-1}{2})$

$3 *(x - 2) = (y + \frac{1}{2})$

$3(x - 2) = (y + \frac{1}{2})$

$3(x - 2) = y + \frac{1}{2}$

Reorder

$y + \frac{1}{2} = 3(x - 2)$

Hence, the equation that represents the line is $y + \frac{1}{2} = 3(x - 2)$

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3 years ago

4xsquared 12x 10 is less than or equal to 0 (or what multiplies to get 40 and adds to get 12)

g100num [7]

It either x=5 or x=-2 not sure which on

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3 years ago

Angle is in standard position and (-5, -7) is a point on the terminal side of 0.

vfiekz [6]

Answer:

Step-by-step explanation:

Don't use 0 as a substitute for θ. 0 is always 0.

cosθ = -5/(2√15)

secθ = 1/cosθ = -2√15/5

4 0

3 years ago