Select the true statement(s):

The solution to the system of equations 9x - 4y = 19 and 4x + 4y = 20

is x = 3 and y = 2.

A straight line on the coordinate plane is represented by a linear function. As an illustration, the equation y = 3x - 2 depicts a linear function because it is a straight line in the coordinate plane.

Any function whose graph is not a straight line is said to be nonlinear.

Any curve other than a straight line can be a graph of it.

An example of a non-linear function is a quadratic function.

Given, Two linear equations in two variables 'x' and 'y',

9x - 4y = 19 and 4x + 4y = 20.

Now, Adding these two equations we have,

13x = 39.

x = 3 and hence y = 2.

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Answer:

6.32

Step-by-step explanation:

6^2 - 2^2

✓40

=6.32455532

2d.p = 6.32

Answer:

x²+5x-14

Step-by-step explanation:

expand out the brackets:

x²-2x+7x-14

simplify:

x²+5x-14

Answer:

546

Step-by-step explanation:

Surface Area = 2(lw + lh + wh)

plug in 21 10.5 and 2.5

Answer:

Triangle P

Step-by-step explanation:

Answer:

x is 10.

Step-by-step explanation:

3x + 12 = 42

Subtract 12 from both sides

3x = 42 - 12

Subtract 12 from 42 to get 30

3x = 30

Divide both sides by 3

x = 30/3

Divide 30 by 3 to get 10

x = 10

Answer:

There are 10 slices in one pizza.

Step-by-step explanation:

30 ÷ 3 = 10

Answer:

10 slices

Step-by-step explanation:

30÷3=10 meaning every pizza will have 10 slices and 2 pizzas will have 20.

The mean cost of transportation is £20.80

The peace of data that distorts the mean average is the taxi fares.

Step-by-step explanation:

Since the mean is the average, you add all the piece of date together then divide by the amount of data.

The equation for that would look something like this:

[tex](8.5 + 7 + 5.7 + 62) \div 4[/tex]

Answer:

a) 12.1

b) 15.1

Step-by-step explanation:

The number of bass are 9 and the number of trout are 3.

Given that, Pat was in a fishing competition at Lake Pisces. He caught some bass and some trout.

A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.

Let x be the number of bass and y be the number of trout.

Each bass weighed 3 pounds, and each trout weighed 1 pound. Pat caught a total of 30 pounds of fish.

So, 3x+y=30 --------(I)

Since trout are endangered in Lake Pisces, he lost 1 point for each trout. Pat scored a total of 42 points.

5x-y=42 --------(II)

Use elimination method

Add equation (I) and (II), we get

3x+y+5x-y=30+42

⇒ 8x=72

⇒ x=9

Put x=9 in equation (I), we get

3(9)+y=30

⇒ y=3

Hence, the number of bass are 9 and the number of trout are 3.

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Answer:

Here's how to solve the problem

Step-by-step explanation:

50% of participants are in 6th grade.

100% - 50% = 50

0.3, when converted to percentage form is 30%

50% - 30% = 20%

This remaining 20% is how many participants, out of the whole, are in the 7th grade

20% = 0.2 = 2/10 = 20/100

Answer: 168.5 inches

50 yards = 1800 inches

50 meters = 1968.5 inches.

So, if you run 50 yards, you run 1968.5 - 1800, 168.5 inches less than 50 meters.

Let me know if this helps!

Answer: the answer would be $150

Step-by-step explanation:

Answer:$150.00

Step-by-step explanation:

If you think about a item going down by 70%, it means that you are paying only 30% of the total price.

100%-70%=30%

So 30% of $500 is what you are paying.

30%=30/100=0.3

So you multiply 0.3x500

Which is equal to 150

Answer:

Joel need to practice this week = [tex]\frac{3}{4}[/tex] hour

Step-by-step explanation:

P.S - the exact question is -

As given

Total practice goal of Joel = [tex]4\frac{1}{2}[/tex] hours

He practiced on : Monday - [tex]1\frac{1}{2}[/tex] hours

                             Wednesday - [tex]1\frac{1}{4}[/tex] hours

                             Thursday - 1 hour

Let the remaining practice = x hours

⇒ Total practice =  [tex]4\frac{1}{2}[/tex] hours

⇒[tex]1\frac{1}{2}[/tex] + [tex]1\frac{1}{4}[/tex] + 1 + x = [tex]4\frac{1}{2}[/tex]

⇒ 1 + [tex]\frac{1}{2} + 1 + \frac{1}{4} + 1 + x = 4 + \frac{1}{2}[/tex]

⇒3 + x - 4 = [tex]\frac{1}{2} - \frac{1}{2} - \frac{1}{4}[/tex]

⇒x - 1 = [tex]-\frac{1}{4}[/tex]

⇒x = [tex]-\frac{1}{4} + 1 = \frac{-1 + 4}{4} = \frac{3}{4}[/tex]

⇒x = [tex]\frac{3}{4}[/tex] hour

∴ we get

Joel need to practice this week = [tex]\frac{3}{4}[/tex] hour

Answer:

(5,-2)

Step-by-step explanation:

Answer:

3. trust me because 9 is leads than 2

Answer:

Its 33,44,55.

Step-by-step explanation:

Step-by-step explanation:

70 Reis espero ter ajudado

Answer:

3 pounds 2 oz

Step-by-step explanation:

1 pound = 16 oz

x pounds = 50 oz

Cross Multiply

16x = 50 oz             Divide by 16

x = 50 / 16

x = 3 pounds with 2 oz left over.

Your calculator will give you 3.125

0.125 = 1/ 8

1/8 * 16 = 2

Answer:

Step-by-step explanation:

If you wanna decrease the number 10 by 90%, It's just 9. You simply need to multiply a/100 at the number you try to decrease by a%.

Answer:

Decrease 20g by 90%: final value 2 gm

Step-by-step explanation:

decrease 90%: decrease 20 * 0.9 = 18

new value after decrease: 20 - 18 = 2

Answer:

Can you pls enter the correct question

Answer:

im confused on that question too but here is the a pic for u

Step-by-step explanation:

Answer:

Answer vary:

1 3/5

Step-by-step explanation:

I have no idea how to explain I did it on paper but if you look up how to divide fractions it‘ll show you how and that’s how you get your answer or use a calculator.

1. turn 1 1/5 into an improper fraction = 6/5

this is how it should go :

1 1/5 divided by 3/4

1 1/5 turns into 6/5

3/4 divide 6/5

and after that you jus keep going and if you don’t know how to divide fractions look it up and it should show you.

The sum of the mixed fraction number 1 ¹/₅ and the fraction number 3/4 will be 39/20.

Algebra is the study of algebraic expressions, while logic is the manipulation of those concepts.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to answer the problem correctly and precisely.

The two numbers are given below.

1 ¹/₅ and 3/4

Convert the mixed fraction number into a fraction number. Thew we have

1 ¹/₅ = 1 + 1/5

1 ¹/₅ = 6/5

Then the sum of the fraction numbers 6/5 and 3/4 will be calculated as,

⇒ 6/5 + 3/4

⇒ (24 + 15) / 20

⇒ 39 / 20

The sum of the mixed fraction number 1 ¹/₅ and the fraction number 3/4 will be 39/20.

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Answer:

4h^2 -14h - 30

Step-by-step explanation:

Foil the binomials:

Multiply the first two 4h^2

Multiply the outer two -20h

Multiply the inner two +6h

Multiply the last two terms -30

Then combine like terms and you get final answer

Answer:

x=48 degrees

Step-by-step explanation:

hope this helps :D

Answer:

x=162°

Step-by-step explanation:

interior angle of B= 180-75= 105°

interior angle of E=180-123=57°

105+57=162°

x=162°

Answer:

it is a polynomial because it has more than two terms

Answer:

A. X < 3

Step-by-step explanation:

Let x represent the average number of shots Kaydence can take on each hole in order to beat Delilah's score.

Delilah final score is 42 while Kaydence has 5 holes left and has a score of 27. Hence:

number of holes left for Kaydence * x < Delilah final score - Kaydence present score

That is:

5*x < 42 - 27

Simplifying gives:

5x < 15

Dividing both sides by 5 to make x the subject of the inequality:

5x / 5 < 15 / 5

x < 3

Answer:

The person from the top was correct

Step-by-step explanation:

x < 3