What does it mean to substitute something?

Answers

Answer 1

Answer: Its like substituting x or y into an equation to solve it

Step-by-step explanation:


Related Questions

George and Lea each toss a tetrahedral die with faces numbered 1 through 4, and then multiply the two resulting numbers. If the product is less than 9, George wins; otherwise, Lea wins. What is the probability that Lea will win? Express your answer as a common fraction.

Answers

Answer:

I think the total number of combinations of 3 from 6 = 6C3 = 20

All possible combinations of 3 which have a product divisible by 3 must contain either a 3 or a 6.

So the number not divisible must be 3 combinations from the number 1, 2, 4, and 5.= which is 4

So the required probability is 20-4 ? 20 = 16/20 = 0.8 Answer

Hope this help you! :)

Shoes cost $135. If you save $27 with a sale, what is the percent discount?

Answers

Answer:

the precent discount is 20%

(27 / 135) x 100 = 20%

I hope this helps! ^^

☁️☁️☁️☁️☁️☁️☁️

Solve for − ∣ x − 2 ∣ + 4 ≤ 0

Answers

Answer:

x ≥ 6 or x ≤ -2

Step-by-step explanation:

- I x - 2 I + 4 ≤ 0

- I x - 2 I ≤ -4

I x - 2 I ≥ 4

x - 2 ≥ 4  or  x - 2 ≤ -4

x ≥ 6  or x ≤ -2

Given a triangle with side lengths of a, b, and c, where c is the longest side, which statement is true?

Answers

Answer:

If a^2 + b^2 =c^2, then the triangle is a right triangle.

Step-by-step explanation:

Given

Shape: Triangle

Sides: a, b, c

Longest: c

Required

Select the true statements (See comment section for options)

From the options, we can see that we need to prove if the triangle is right-angled or not.

Since side c is the longest side, it means that side c is the hypotenuse.

Applying Pythagoras theorem

We have that:

[tex]a^2 + b^2 = c^2[/tex]

If the above mathematical statement is true, then the triangle is right-angled

Answer:

If a^2 + b^2 =c^2, then the triangle is a right triangle.

Step-by-step explanation:

The sum of twice a number and five is greater than three times the number minus three.

Answers

Answer:

x<8

Step-by-step explanation:

2x+5>3x-3

2x+8>3x

8>x

Answer:

n < 8

Step-by-step explanation:

Let n represent the unknown number.  Then:

2n + 5 > 3n - 3

Collecting like terms:

8 > n or n < 8

please help!!!!!!!!!!!!!

Answers

a is ur answer hope u get a good grade with the rest
A is wrong correct answer is B

can someone help? i need help ‍♀️

Answers

Answer:

Mean: 29.6

MAD: 10

Step-by-step explanation:

Answer:

Mean = 29.6

MAD = 10

Step-by-step explanation:

For the mean, just add all of the points together and divide it by 10 since there are 10 games.

For the MAD, use the mean and subtract is from each of the games. As an example, just do 23-29.6 and ignore if it is a negative sign. Do it for all and then add up the leftovers. Then divide it by the 10 games.

(6.6+1.4+1.6+8.4+10.6+8.4+15.4+4.6+26.6+16.4)/10

Check out a khan academy video about it if you're having trouble

Pleaseee helpp answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!

Answers

the answer is 91.8!!!!

what is 14.29 rounded tenths place

Answers

Answer:

14.3

Step-by-step explanation:

Math

Answer:

14.3i think.

Step-by-step explanation:

Help!?!! Im sooo confused

Answers

If x=3 then the f(x)=4
If x=6 then the f(x)=7
If x=7 then the f(x)=8
you just replace x with number, easy.

Cooper and yu are adding fractions, 1/3, 7/9, and 4/15. Their first step is to find the least common denominator of 3, 9, and 15. Is either of them correct? Explain your reasoning

Answers

Answer:

Yes

Step-by-step explanation:

When adding fractions which have unequal denominator values, the first step is to find a way in which all the denominators conform to a common denominator value which is achieved by obtaining the lowest common factor of the denominator values.

The L. C. M of 3, 9 and 15 is : 45

1/3 + 7/9 + 4/15

Npq we have a common denominator value :

(15 + 35 + 12) / 45

= 62 / 45

Paige and Cindy have been saving money. Paige started with $350 in her
savings and deposits $25 into her savings each week. Cindy’s savings is
represented by the equation T = 190 + 40w, where T is total savings and
w is the number of weeks. In how many weeks will Cindy have more
money in her savings than Paige?

Answers

Answer:

Thus the prime factors of the given numbers can be only 2, 3, 5, and 7. ... most 3 + 1 + 1 + 1 = 6 numbers, we are left with at least three numbers among the nine ... points, and b by blue points (for these inequalities to hold we might have to ... 8. The constant function f (x) = k, where k is a positive integer, is the only possible.

Step-by-step explanation:

Find the distance between the points given. (0, 6) and (5, 12)

Answers

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What is the distance between -12 and -8

Answers

Answer:

The distance between -12 and -8 is 4.

Step-by-step explanation:

hope this helps

Pls help me I will mark no one explanation ❤️❤️

Answers

Answer:

1/3

Step-by-step explanation:

Slope is going 1 up and 3 across

PLS HELP! Thank you pls

Answers

Answer:

Step-by-step explanation:

no

A 2 month membership at the gym costs $25.if you
want to be a member for 8 months. how much will
you need to pay?

Answers

$1

because 2 months is 25. so 8 months divided by 2 is 4 so 4 times 25. is 1 dollar

It will cost 100 dollars since 25/2 months is 12.5 dollars a month. Then 12.5 * 8 is 100

Variable Terms in 3x + 2 – 10 – 3x

Answers

Answer:

X

Step-by-step explanation:

because its the varible term

can anyone help meee??

Answers

Answer:

yes I can help u but I'm not really sure what the answere to ur problem is

4. Encuentra dos sistemas de ecuaciones lineales
que tengan como solución el punto dado
Recuerda: para que un punto pertenezca a la
recta, reemplazas las coordenadas en la ecuación
a) (-2,1)
b) 3,-2
c) 0,5; -1)
d) (0,4​

Answers

Answer:

ggghyhjjudeieikwkkskkskskkskkkwkkskskdkejjsjsuusuydueujejekkekejjje

The system of equations for each point are mentioned below.

What is a mathematical function, equation and expression?            function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.

Given is to find two systems of linear equations that have the given point as a solution.

For the point (- 2, 1), we can write the system of equations as -

1 = - 2m₁ + c₁

1 = - 2m₂ + c₂

For the point (3, - 2), we can write the system of equations as -

- 2 = 3m₁ + c₁

- 2 = 3m₂ + c₂

For the point (0.5, 1), we can write the system of equations as -

1 = (1/2)m₁ + c₁

1 = (1/2)m₂ + c₂

For the point (0, 4), we can write the system of equations as -

4 = c₁

4 = c₂

Therefore, the system of equations for each point are mentioned above.

To solve more questions on functions, expressions and polynomials, visit the link below -

brainly.com/question/17421223

#SPJ2

{Translation in english -

Find two systems of linear equations

that have the given point as a solution

Remember: for a point to belong to the

line, plug the coordinates into the equation

a) (-2.1)

b) 3,-2

c) 0.5; -1)

d) (0.4​)

}

ABC is a right-angled triangle.
Calculate the length of BC.
Give your answer correct to 1 decimal place.

Answers

Answer:

14.5

Step-by-step explanation:

The pythagoreom theorum shows a^2 + b^2 = c^2. Therefore, c^2 - a^2 = b^2

256 - 44.89 = 211.11

The square root of 211.11 rounded to the first decimal place is 14.5

The length of BC is 14.5 cm

What is Pythagoras theorem?

The Pythagoras theorem states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Given

AB = 6.7 cm

AC = 16 cm

According to the Pythagoras theorem of triangles

[tex]a^{2} +b^{2} =c^{2}[/tex]

[tex]AB^{2} +BC^{2} =AC^{2}[/tex]

[tex]BC^{2} =AC^{2} -AB^{2}[/tex]

[tex]BC ^{2} =16^{2}-(6.7)^{2}[/tex]

[tex]BC = \sqrt{16^{2} -(6.7)^{2} }[/tex]

BC = 14.5 cm

Hence, the length of BC is 14.5 cm

Find out more information about Pythagoras theorem here

https://brainly.com/question/343682

#SPJ2

Need help with this (10 points)

Answers

Answer:

5 is greater than equal to 5. So f(5)=5+8=13

Step-by-step explanation:

PLEASE HELP
Complete the answers
A ceiling fan has 2.8 ft for the radius what is the circumference?
A water bottle cap has 13 mm for the radius what is the circumference?
A bowl has 56.5 cm for the circumference what is the radius?
A drum has 75.4 in for the circumference what is the radius?

Answers

Answer:

1. 17.59

2. 81.68

3. 8.99225

4. 12.00028

Step-by-step explanation:

for the first two you have to multiply the radii by 2 to find the diameter, then multiply your diameter by pi (3.14) to find the circumference

for the second two you have to work backwards so you have to divide the circumference by pi (3.14) which will give you the diameter, then you have to divide the diameter by 2 to get the radius.

Robin has read 3/4
of a book. Mark said he had read 1/2
as much as Robin. What fraction of the book has Mark ready?

Answers

Answer:

3/8

Step-by-step explanation:

Answer:

3/8

Step-by-step explanation:

3/4 × 1/2 = 3/8

I hope this helps!

What is the slope of the line that passes through the points (-2, -3), and (5, 4)?
3
-1
1
-3

Answers

Answer:

Option 3: One

Step-by-step explanation:

Slope is y2-y1 over x2-x1

4-(-3)= 7

5-(-2)= 7

7/7 = 1

Which ordered pair is a solution of the equation 5x+y=-23?
O (-3,-4)
O (-5,-3)
O (-4,-3)
O (-3,-5)

Answers

5x+y = -23

by substitution

A)
5(-3) + (-4) = -23
-15 - 4 = -23
-19 = -23
Wrong
----------------
B)
5(-5) -3 = -23
-25 - 3 = -23
-28 = -23
Wrong
-----------------
C)
5(-4) - 3 = -23
-20 - 3 = -23
-23 = -23
Right ✅✅✅✅

Answer:

5x-4+-20+ -3=-23

Step-by-step explanation:

5x-3= -15 + -4 = 11

5x-5=-25+-3=22

5x-4=-20+-3=-23

5x-3= -15+ -5= -20

Lindsay has scored 15 goals in 10 lacrosse games this season. a) What is her unit rate of scoring? b) How many goals might Lindsay score in 35 games? What assumptions do you make?

Answers

a)1.5 goals per match
b) 1.5x35= 52.5 so 53
Assuming she is consistent

Six times the lesser of the two consecutive even integers is 4 times the greater even integer. What are the integers?

Answers

Answer:

Integers are 4 and 6

Step-by-step explanation:

Let the two consecutive even integers be [tex]x,x+2[/tex] such that [tex]x<x+2[/tex]

Six times the lesser of the two consecutive even integers is 4 times the greater even integer.

So,

[tex]6x=4(x+2)\\6x=4x+8\\6x-4x=8\\2x=8\\x=4[/tex]

Other integer [tex]=x+2=4+2=6[/tex]

ishdkshdjdicbekjednejjdjxjxj w d f

Answers

Answer: x=73 y=73 z=107

Step-by-step explanation:

The angel of x is 73° because opposite angles are always the same.

The angle of y is also 73° because it is on a parallel line so angles on a parallel line would be the same.

Then the angle of z is 107° because the other side of z would be 73° so you need to deduct this from 180° (because a straight line always adds up to 180°).

How are the semicircle and the diameter of a circle related?

The length of the diameter and the length of semicircle are the same.
The degree measure of the diameter and the degree measure of the semicircle are the same.
The angle measure of the diameter is twice the angle measure of the semicircle.
The angle measure of the diameter is half the angle measure of the semicircle.

Answers

Answer:

B. The degree measure of the diameter and the degree measure of the semicircle are the same.

Step-by-step explanation:

Semicircle and diameter in a circle are related because the degree measure of the diameter and the degree measure of the semicircle are the same.

Diameter:

The diameter of a circle is the the line that passes through the centre of a circle and meets the circumference at opposite end. The diameter divides a circle into semi circle. Therefore, the degree measure is 180 degrees.

Semi Circle

Semi Circle is half of a circle. It is from the diameter of a circle you cut out a semi circle. The degree measure of a circle is 360 degree while the degree measure of half of a circle(semi circle) is 180 degrees.

Therefore, the degree measure of the diameter and the degree measure of the semicircle are the same.

learn more on diameter and semi circle here: https://brainly.com/question/4321778

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