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3 years ago

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OMG PLSS ANSWERR People use water to cook, clean, and drink every day. An estimate of 17.2% of the water used each day is for c

ooking . If a family uses 68.8 gallons of water a day for cooking, how many gallons do they use every day?

1 answer:

Anna71 [15]3 years ago

8 0

Answer:

260 gallons

Step-by-step explanation:

Hope it's correct

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If you take a number, times by 8 then add 6. You get the same as if you took the number multiply it by 3 then subtract 7. What i

Gennadij [26K]

Answer:

x = -13/5

Step-by-step explanation:

let x be the number

8x + 6 = 3x - 7

move variables to left and numbers to right

8x - 3x = - 7 -6

5x = -13

x = -13/5

4 0

3 years ago

at noon on monday the temperature was 13°f.by 6:00 pm,the temperature had dropped 9 degrees.by midnight the temperature had drop

Ivenika [448]

Answer: -3 degrees

Step-by-step explanation:

13-9=4-7=-3 degrees

3 0

3 years ago

Read 2 more answers

Write an equation of the line passing through the point (5, 1) that is perpendicular to the line 5x+3y=15. An equation of the li

pochemuha

Answer:

$\displaystyle y = \frac{3}{5}\, x + (-2)$ .

Step-by-step explanation:

The slope of a line in a plane would be $m$ if the equation of that line could be written in the slope-intercept form $y = m\, x + b$ for some constant $b$ .

Find the slope of the given line by rearranging its equation into the slope-intercept form.

$3\, y = (-5)\, x + 15$ .

$\displaystyle y = \frac{(-5)}{3} \, x + 5$ .

Thus, the slope of the given line would be $(-5) / 3$ .

Two lines in a plane are perpendicular to one another if and only if the product of their slopes is $(-1)$ .

Let $m_{1}$ and $m_{2}$ denote the slope of the given line and the slope of the line in question, respectively.

Since the two lines are perpendicular to each other, $m_{1}\, m_{2} = (-1)$ . Apply the fact that the slope of the given line is $m_{1} = (-5) / 3$ and solve for $m_{2}$ , the slope of the line in question.

$\begin{aligned}m_{2} &= \frac{(-1)}{m_{1}} \\ &= \frac{(-1)}{(-5) / 3} = \frac{3}{5}\end{aligned}$ .

In other words, the slope of the line perpendicular to $5\, x + 3\, y = 15$ would be $(3 / 5)$ .

If the slope of a line in a plane is $m$ , and that line goes through the point $(x_{0},\, y_{0})$ , the equation of that line in point-slope form would be:

$(y - y_{0}) = m\, (x - x_{0})$ .

Since the slope of the line in question is $(3 / 5)$ and that line goes through the point $(5,\, 1)$ , the equation of that line in point-slope form would be:

$\begin{aligned} (y - 1) = \frac{3}{5}\, (x - 5) \end{aligned}$ .

Rearrange this equation as the question requested:

$\begin{aligned} y - 1 = \frac{3}{5}\, x - 3 \end{aligned}$ .

$\begin{aligned} y = \frac{3}{5}\, x - 2 \end{aligned}$ .

$\begin{aligned} y = \frac{3}{5}\, x + (-2) \end{aligned}$ .

7 0

2 years ago

Joràni flips two standard American quarters. How many ways can she get at least one head?

kobusy [5.1K]

Answer:

A.1

Step-by-step explanation:

If there are only to sides to a quarter than you have a 50 50 chance, or 1:2

7 0

3 years ago

An angle is 8 times its supplementary angle. What is the measure of each angle?

Zinaida [17]

Answer:

Let the angle be "x".

Its supplement is "8x".

-------------

Step-by-step explanation:

x + 8x = 180

9x = 180

x = 20 degrees

8x = 8*20 = 160 degrees

===============================

4 0

3 years ago