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Archy [21]
3 years ago
12

The equation 0.3x = 7 was translated from the problem "_____."

Mathematics
2 answers:
Savatey [412]3 years ago
6 0
What number is 30% of 7
pshichka [43]3 years ago
5 0

Answer:

B) 30% of what number is 7.

Step-by-step explanation:

The given equation is 0.3x = 7

Here "x" is a variable.

0.3x = 7 means 0.3 times of x equals 7.

The variable x is assigned for an unknown number and 0.3 = \frac{30}{100} = 30 %

0.3x = 7

30% of x is 7

Which means 30% of the number(x) is 7.

Therefore, the answer B) 30% of what number is 7.

Note: Variables always assigned to find the unknown numbers.

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Write an equation for the line parallel to the line 5/8x−7/6y =2 through the point (7,−1).
LiRa [457]

y =  -  \frac{28}{48x - 15} -  \frac{125}{321}is the answer.

Step-by-step explanation:

For this question,

•<u> </u><u>First</u>, find the slope of the line parallel to the line 5/8x−7/6y=2 :-

m =  - \frac{28}{ - 15 + 48x}

•<u>Second</u>, find the equation of the line,

y =  -  \frac{28}{48x - 15} -  \frac{125}{321}

7 0
2 years ago
Find an equation for the line that passes through the point (-4, 10) and (16, -2)
Crank

Answer:

y = 3/5x + 62/5

Step-by-step explanation:

Equation of a line with two points is

m = y - y_1 / x - x _1

m = y_2 - y_1 / x_2 - x _1

Equating both

y - y_1 / x - x_1 = y_2 - y_1 / x_2 - x_1

Using what we are provided with

(-4 , 10)(16 , -2)

x_1 = -4

y_1 = 40

x_2 = 16

y_2 = -2

Imputing the values

10 - (-2) / 16 - (-4) = y - 10 / x - (-4)

10 + 2 /16 + 4 = y - 10 / x + 4

12 / 20 = y - 10 / x + 4

Lets cross multiply

12 ( x + 4) = 20(y - 10)

Open the brackets

12x + 48 = 20y - 200

12x + 48 + 200 = 20y

12x + 248 = 20y

Following this equation of line

y = mx + C

20y = 12x + 248

Let's divide through by 20 to get y.

20y / 20 = 12x + 248 / 20

y = 12x + 248 / 20

We can separate it by

y = 12x / 20 + 248 / 20

y = 3/5x + 62/5

Therefore, the equation of the line is

y = 3/5x + 62/5

3 0
3 years ago
Select "Rational" or "Irrational" to classify each number.
xenn [34]

Answer:

rational rational irrational

Step-by-step explanation:

6 0
3 years ago
Kate's swim coach informs her that she only has 35% of her workout left. Kate has swum 26 laps so far.
Sergio039 [100]
Well so far, Kate has saw 65% of her workout

65% of total = 26
0.65 * t = 26
t = 26/0.65
t = 40 laps
3 0
3 years ago
Read 2 more answers
In a survey of 1,600 people who owned a certain type of car, 720 said they would buy
bazaltina [42]

The percentage of the people surveyed that were satisfied with the car is 45%.

<u>Given the following data:</u>

  • Total population = 1,600 people
  • Number of car owner = 720 people.

To determine the percentage of the people surveyed that were satisfied with the car:

<h3>How to solve for a percentage.</h3>

In this exercise, you're required to calculate the percentage of the total population in this survey that would by a particular type of car again because they were satisfied with it. Thus, we would solve for the percentage as follows;

Percent = \frac{Satisfied\;persons}{Total\; population} \times 100

Substituting the given parameters into the formula, we have;

Percent = \frac{720}{1600} \times 100\\\\Percent = 0.45 \times 100

Percent = 45%

Read more on percentage here: brainly.com/question/14432715

3 0
2 years ago
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