MATHEMATICS HIGH SCHOOL

Show that (2.1) is a solution of the system of equations.Substitute (2, 1) into x + 3y = 5 to get -
Simplify the equation to get -
Substitute (2, 1) into y = -x+ 3 to get -
Simplify the equation to get -
Show that (2.1) is a solution of the system of - 1

Answers

Answer 1
Answer:

Answer:

Substitute (2, 1) into x + 3y = 5 to get  2 + 3(1) = 5

Simplify the equation to get 5 = 5 is true

Substitute (2, 1) into y = –x + 3 to get 1 = -(2) + 3

Simplify the equation to get 1 = 1 is true

Step-by-step explanation: well i am doing it right now and i got it right

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Miguel ordered a party tray of sandwiches for a birthday party. during the party, the guests left of the sandwiches. the next day, miguel shared the leftover sandwiches with his family who ate of the remaining sandwiches. which fraction represents the portion of the entire tray miguel's family ate?
Which property does the statement illustrate?Column A Column B 1. If x – 3 = y and y = 8, then x – 3 = 8. 2. If x + 2 = 7, then 7 = x + 2. 3. If m = 2x and 2x = 7, then m = 7. 4. If 2n – 4 = 5 + n, then 5 + n = 2n – 4. A. symmetric property B. transitive property please answer within 2 mins

Each day, 895 people visit the museum. How many people visit the museum in 5 days

Answers

Answer:

the correct answer is 895*5=4505

Step-by-step explanation:

hope it helps

What is 3- 6/7 as an improper fraction ?? please help

Answers

the improper fraction is 27/7

To convert the mixed number 3 6/7 to an improper fraction, we need to combine the whole number part with the fractional part.

First, multiply the whole number (3) by the denominator (7), which gives us 21. Then, add the numerator (6) to get 27.

Next, write the sum (27) as the numerator and keep the denominator (7) the same. The resulting improper fraction is 27/7.

This means that there are 27 parts (numerator) out of 7 equal parts (denominator). The improper fraction emphasizes the total number of parts beyond a whole number.

Converting the mixed number 3 6/7 to the improper fraction 27/7 allows for easier mathematical operations and comparisons with other fractions.

Therefore, the improper fraction is 27/7

Learn more about improper fraction here

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Answer:

27/7

you have to times the denominator and the whole number then add the numerator

If a thermometer indicates 30 degrees Celsius, what is the temperature in degrees Fahrenheit? A. 54°F
B. 17°F
C. 24°F
D. 86°F

Answers


To calculate the Fahrenheit temperature:

-- Take the Celsius temp.
-- Multiply by 1.8 .
-- Then add 32 to the product.

   30°C  ==>  (30 x 1.8) = 54  ==>  54 + 32  =  86°F.
_____________________________________

To calculate the Celsius temperature:

-- Take the Fahrenheit temp.
-- Subtract 32 .
-- Multiply what's left by  0.55... (5/9 to be exact).

     86°F   ==>  (86 - 32) = 54   ==>  (54) x (5/9) =  30°C .
 

Answer:86F

Step-by-step explanation:

A piece of licorice is to be cut into 10 equal size pieces . If the length of the piece of licorice is 2/3 yard, how long will each piece of licorice be?

Answers

The first thing to do is turn this into an equation: 
2/3 ÷ 10 

10 as a fraction is 10/1
2/3 ÷ 10/1 = 

Fractional division is just fractional multiplication after switching the numerator and the denominator of the second fraction: 
2/3 X 10/1 

Fractional multiplication is simply multiplying the numerators by each other, and the denominators by each other: 
2 X 10 = 20
3 X 1 = 3

20/3

Each piece of liquorice will be 20/3 or 6 2/3 of a yard long. 

Answer: 20/3

Step-by-step explanation:

Help me im having trouble on slopes

Answers

Answer:

The slope-intercept form of an equation looks like this: y=mx+b

The m stands for the slope and the b stands for the y-intercept.

We need two points from the line to write out this equation.

For example (-2,0) and (1,2)

Now that we have the slope, we can plug it into our equation: y= 2/3x + b

To get b, our y-intercept, we just need to plug in one of the points found and solve. For example (-2,0)

Now that we have both our m and b values, we can plug them in to get our equation: y=2/3x + 4/3

Step-by-step explanation:

m= (y1-y2)/(x1-x2) = (0-2)/(-2-1)

m=(-2)/(-3) = (2)/(3)

0=(2)/(3)(-2)+b

0=-(4)/(3)+b\n 0+(4)/(3)=-(4)/(3)+(4)/(3)+b\n 0+(4)/(3)=b\n (0*3)/(3)+(4)/(3)=b\n (4)/(3)=b

$4 is what percent of $50

Answers

it is 8 percent of 50. 

This is 1 way-
4/50=%/100 You now have a proportion. Cross multiply.
50%=400 Replace % with any variable.
50x=400 Now divide both sides of the equation by 50.
x=8

(% is basically the percentage of 4 of 50 over 100. its much easier to solve percentage problems when the percentages are over 100. 100 represents a full percentage. 
example- 4 of 100 is 4% of 100)

2nd example-
Since the percentage can be found if over 100 as well (%/100), and since 100 is a multiple of 50, we can do 4 of 50 (which would look like 4/50) and multiply  both numbers by 2 to get the percentage. These are our steps:

4/50× 2/2=
8/100

Therefore, 4 of 50 is 8% of 50
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