how many solutions does 4x-20= -2 (-2x + 10) have

Answers

Answer 1

Answer:

It only has one solution.

Step-by-step explanation:

4x-20= -2 (-2x + 10)

Add 20 to both sides

4x-20+20=4x-20+20

simplify:

4x=4x

Subtract 4x from both sides

4x-4x=4x-4

Simplify:

0=0


Related Questions

Evaluate each expression if: a = 5, b = 3, and c = 4.
4) 6a-4b5)
I

Answers

Answer:

-30

Step-by-step explanation:

Simply substitute the values in for the variables:

6(5) - 4(3)(5)   ~ parentheses indicate multiplication in this case

30 - 60 = -30

Write down in terms of n an expression for the nth term of the following sequence
12 16 20 24 28

Answers

Answer:

4n + 8

Step-by-step explanation:

Given the following 30-60-90 triangle , find the value of x and y Round to the nearest tenth x = 5.2 X = 6 Y = 6 Y = 5.2​

Answers

Step-by-step explanation:

tan30° = Opposite/Adjacent = 3/x.

=> 3/x = √3/3, x = 3√3 = 5.2.

sin30° = Opposite/Hypotenuse = 3/y.

=> 3/y = 1/2, y = 6.

The correct answer is the 1st and 3rd options.

Answer:

[tex] \huge \boxed{ \boxed{ \sf \: x = 5.2 \atop\sf y = 6}}[/tex]

Step-by-step explanation:

to understand thisyou need to know about:trigonometryPEMDASgiven:[tex] \theta = {30}^{o} [/tex]opp:3to find:adjacent (x)hypotenuse (y)tips and formulas:[tex] \tan( {30}^{o} ) = \frac{ \sqrt{3} }{3} [/tex]tan(a)=opp/adjsin(a)=opp/hypo[tex] \sin( {30}^{o} ) = \frac{1}{2} [/tex]let's solve:

according to the question

[tex] \tan( {30}^{o} ) = \frac{3}{x} [/tex]

[tex] \frac{ \sqrt{3} }{3} = \frac{3}{x} \\ x\sqrt{3} = 9 \\ x = \frac{9}{ \sqrt{3} } \\ x = 3\sqrt{3} \\ x = 5.2[/tex]

according to the question

[tex] \sin( {30}^{o} ) = \frac{3}{y} [/tex]

[tex] \frac{1}{2} = \frac{3}{y} [/tex]

[tex]y = 6[/tex]

im confused can someone help me

Answers

Answer:

y intercept is -8

slope is 3x

Step-by-step explanation:

the definitions of them speak for themselves

The following exchange rate is given: £1 = 1.11 euros. Convert £8 into euros.

Answers

Answer:

= 8.88

Step-by-step explanation:

£1 = 1.11 x £8 = 8.88 (euro)

= 8.88

This is because if £1 = 1.11, it’s just like x’ing 8 by lots of ones. so the answer would be 8.88

Dan has twice as many stickers as Cam does. If Dan gives Cam 15 of his stickers he will still have 22 more than Cam. How many stickers does each boy have?

Answers

You can solve this question by setting up an equation. Dan has twice as many stickers as Cam does. We can call Dan 2x, and Cam x. So the equation would be:
2x-15=x+22.
Then solve this equation:
Add 15 on both sides
2x=x+37
Subtract x on both sides
2x-x=37
X=37.
Therefore Cam has 37 stickers, and Dan has 74 stickers.

Ordena de menor a mayor 13 5 10 10 4 6 5 59 29 50 24​

Answers

Answer:24

Step-by-step explanation:

lol




Area as a sum:
Area as a Product:


I need the are as a sum Nd a product

Answers

Given:

The area model.

To find:

The area as a sum and area as a product.

Solution:

The four terms of the area model are [tex]2x^2,10x, 3x, 15[/tex].

The area as a sum is the sum of all the terms of given area model.

Area as a sum = [tex]2x^2+10x+3x+15[/tex]

                        = [tex]2x^2+13x+15[/tex]

The area as a product is the factor form of sum of all the terms of given area model.

Area as a product = [tex]2x^2+10x+3x+15[/tex]

                        = [tex]2x(x+5)+3(x+5)[/tex]

                        = [tex](x+5)(2x+3)[/tex]

Therefore, the area as a sum is [tex]2x^2+13x+15[/tex] and the area as a product is [tex](x+5)(2x+3)[/tex].


Charlotte is making a scrapbook. She needs a piece of ribbon that is 3/4 ft long. What is that fraction written as a decimal?

Answers

3/4 in decimal form is 0.75.

A rectangular field measures 400yds x 600yds. Find the length of the diagonal of the field.

Answers

That would be 1000 yards - add the both together

can someone help me wit dis?​

Answers

Answer:

2

Step-by-step explanation:

the answer is 7
3x+10=31
-10 -10
3x=21
/3 /3
x= 7

can someone please help me quickly??

Answers

Answer:

i think your answer would be 35

Step-by-step explanation:

oh sorry it's answer is 42.

calculate by adding all the individuals less than 40

given: x+y=10 if x=-21, what is y?

Answers

Answer: y = 31

Step-by-step explanation: all you need to do is plug in the x

since x = -21 we can put: -21 + y = 10

now we add 21 to both sides giving us: y = 31

Answer:

(-21,22)

Step-by-step explanation:

x+y=10

x=-21

subtitue the x value

-21+y=2

solve for y

y=22

Then write your answer by ordered pair

(-21,22)


Solve the system of linear equations by substitution.
y = -2x + 10
y = x +1

Answers

Step-by-step explanation:

y=14

y=1

thats the answer.

Find the missing side length.
12
15

Answers

Answer:

you need to show the shape or somet or else I can't rlly help

Answer:

If the hypotenuse is 15 and one of the sides is 12, the answer is 9.

If these are the side lengths, the hypotenuse is square root of 369, which is about 19.21

Step-by-step explanation:

Pls help me add me on ig hairstyles2530

Answers

Answer:

Step-by-step explanation:

If the given lengths of 7cm, 24cm, and 25cm for the sides of a triangle satisfy the equation of the Pythagorean theorem then yes!

At the carnival, it costs $10 to enter. It then costs $1.50 per ride you go on.
If you have $28, how many rides can you go on? *
1 point

Answers

Answer:

18.6

Step-by-step explanation:

28 divided by 1.50 equals 18.6

The number of rides will be equal to 12 in the Carnival.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that at the carnival, it costs $10 to enter. It then costs $1.50 per ride you go on. The total amount is $28.

The number of rides will be calculated by forming an equation below,

A = 10 + 1.5R

28 - 10 =1.5R

1.5R = 18

R = 18 / 1.5

R  = 12

Therefore, the number of rides will be equal to 12 in the Carnival.

To know more about an expression follow

https://brainly.com/question/18186591

#SPJ2

Four basketballs and six baseballs cost $44. Five basketballs and four baseballs costs $48. Determine the cost for one basketball and one baseball.

Answers

Answer:cost for basket ball= $8 and

cost of baseball = $2

Step-by-step explanation:

Step 1

Let the cost of basket ball be represented as x

and cost of  baseball = y          such that

Four basketballs and six baseballs cost $44 will be expressed as

4x+ 6y= 44  --- eqn 1   also

Five basketballs and four baseballs costs $48 will be expressed as

5x+ 4y= 48--- eqn 2

Step 2

Having obtained two expressions we can now sole

4x+ 6y= 44  --- eqn 1

5x+ 4y= 48--- eqn 2

multiplying eqn 1 by 5 and eqn 2 by 4

20x+ 30y =220---- eqn 3

20x+ 16y=192-----eqn 4

subtracting equation 4 from 3   we now have

14y=28

y= 28/14

y=2 = $2

from equation 1

4x+ 6y= 44, putting the value of y=7 to find x

4x+ 6(2)= 44

4x+12= 44

4x= 44-12

4x=32

x= 32/4

x=8=$8

cost for basket ball= $8 and

cost of baseball = $2

Determine whether the expression is a polynomial. If it is a polynomial, find the degree
and determine whether it is a monomial, binomial, or trinomial.
3y^2 – 2

Answers

Answer:

This expression is a polynomial. The largest exponent is 2, therefore, it is in the quadratic degree. It is a binomial because it has two parts: 3y² and -2.

42% OF WHAT NUMBER IS 2? If you could please use the fiery cross?​

Answers

Answer:

2100

Step-by-step explanation:

Sorry i dont know what the fiery cross is

8 = –(q + –6) + 18
solve for q

Answers

Answer:

q=16

Step-by-step explanation:

math

way

.com

Answer:

q = 16

Step-by-step explanation:

im not sure how to do this ​

Answers

Step-by-step explanation:

plz make me brainliest ....

at a local gym you can either pay $90 for a monthly pass then pay for dollars each time you go to the gym or you can pay $13 each time you go with no monthly pass fee if you're going to the gym 17 times in a month which option is better​

Answers

Answer:1st option

Step-by-step explanation:

Figure ABCD is reflected across the y-axis.
What are the coordinates of A' B', C. and D'?
Enter your answer by filling in the boxes.
AOD
10-0-7
B'OD
D'OD

Answers

Answer:

yreflection in y-axis (x, y) → (-x, y)  **the sign of the x-coordinate changes, the y value stays the same**

A'(1, 4)

B'(5, 8)

C'(5, 4)

D'(4, 2)

Step-by-step explanation:

Answer:

A'(1, 4)

B'(5, 8)

C'(5, 4)

D'(4, 2)

Step-by-step explanation:

took the test

What is the value of 6x+7y−5 when x = 2 and y = 3?

Answers

Answer:

28

Step-by-step explanation:

6(2) + 7(3) - 5

12 + 21 -5

It's a good idea to get into the habit of using parenthses

when substituting numbers in for variables.

Since x = 2 and y = 3, 6x + 7y - 5 is 6(2) + 7(3) - 5.

Simplifying from here, we get 12 + 21 - 5 or 33 - 5 which is 28.

Please help!!
What is the measure of angels DEF and angles DEG?

Answers

47+ 30 is 77 so def is 77 and 103 is deg. and

Read the following bar graph and answer the following related questions :



a) Who got the maximum marks?
b) Who got the minimum marks?
c) The ratio between the marks obtained by Saroj and Vimla is _______.
d) How many girls have got marks of more than 100?

Answers

Answer:

who got the maximum marks? it would have been apala she got the high mark

Rewrite the expression without parentheses.
12m - (3 + 8m)

Answers

Answer:The answer is 1m

Step-by-step explanation:

12 - (3+8m)

(3+8m)=11m

12-11m =1m

Sara has 600 quarters and dimes in her piggy bank which totals $123.75. How many quarters and
how many dimes does she have?

Answers

Answer: well each quarter is .25c and 600x.25=150 which is over $123.75. So, this is a trick question or this question is not possible to answer.

Step-by-step explanation:

Identify the slope and y-intercept of the graph of the equation. y =3/5 x + 1

Answers

Answer:

slope = 3/5

y intercept = 1

Step-by-step explanation:

i think

Answer:

Slope: 3/5

Y-int: 1

Step-by-step explanation:

Slope intercept form is y=mx+b, with m being the slope being the y-int. So, m is 3/5 and b is 1 in the equation.

(hope this helps :P)

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