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Olin [163]
3 years ago
15

Solve the system of equations. -5x+2y=9 y=7x

Mathematics
2 answers:
posledela3 years ago
6 0

Answer:

x = 1

Step-by-step explanation:

Substitute y with 7x.

-5x + 2(7x) = 9

Solve parentheses.

-5x + 14x = 9

Combine like terms.

9x = 9

Now solve the equation.

9x = 9

/9     /9

-----------

x = 1

Law Incorporation [45]3 years ago
4 0

Answer:

uuuuuuuuuuum

Step-by-step explanation:

maybe it's...


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The scatter plot below shows a linear association. Which is the best linear model for the data?
Ivanshal [37]

Answer:

ye its y=5x-10

Step-by-step explanation:

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3 years ago
Which of the following can be classified as Discrete and Quantitative data. The number of students in your school. The different
WITCHER [35]

Answer:

a) The number of students in your school.      

Step-by-step explanation:

Quantitative and Qualitative:

  • The data that can be expressed with the help of numerical are know as quantitative variable.
  • Qualitative variable is the non parametric variable and numerical does not describe the data

Discrete and Continuous data:

  • Discrete data are expressed in whole number and cannot take all the values within an interval.
  • Continuous variable can be expressed in decimals and can take any value within an interval.

a) The number of students in your school.

Since whole numbers are used to express number of children it is a discrete and continuous data.

b) The different colors of the eyes of your classmates.

These are qualitative data and numerical are not used to express them.

c) The height of all the people in your neighborhood.

These are continuous data as height is measured and can be expressed in decimals.

d) The acceleration of your car as you drive to school.

These are continuous data as acceleration is measured and can be expressed in decimals.

3 0
3 years ago
8. Patrice and Don buy a home for $92,000. The property tax rate is$39.50 per $1,000 of assessed value. The assessment rate is 4
Kaylis [27]

We start by calculating the assessed value, that is 41% of the price.

The price is $92,000.

Then, the assessed value is:

AV=a\cdot P=\frac{41}{100}\cdot92000=0.41\cdot92000=37720

The property tax rate is $39.50 per $1000 of assessed value, so we can express this rate as:

\text{tax rate}=\frac{39.50}{1000}=0.0395

We then can multiply this rate by the assessed value to calculate the total property tax:

\text{tax}=0.0395\cdot37720=1489.94

NOTE: we could have also multiplied 39.50 by 37.72. The value 37.72 is the thousands of dollars of assessed value. We would have obtained the same result: 39.50*37.72=1489.94.

Answer: the property tax is $1,489.94.

3 0
1 year ago
On Saturday Kai gave his guinea pig 80 grams of the food. The table shows the amount of each type of food he gave to the guinea
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Answer:A

Step-by-step explanation:

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2 years ago
Read 2 more answers
Wade borrowed $12,500 from his uncle at 4.5% simple interest to use for travel and repaid the loan in 4 years. How much did he p
natali 33 [55]
12,500 / 100 = 125    125 x 4.5 = 562.5      562.5 x 4 = 2250
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7 0
3 years ago
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