Mathematics High School

12. Is 3 a solution to the equation 3x - 5
= 4 + 2x ? Explain
I

Answers

Answer 1

Answer:

No

Step-by-step explanation:

3x-5= 4+2x

Or, x=4+5

x=9

Answer 2
3x-5=4+2x
= 3x-5 + 5= 4 + 2x
= 3x = 4+ 2x
= 3x/2x = 4 + 2x/2x
= X = 4

Related Questions

What is the final price of an item that cost $38 with 90% mark-up

Answers

Answer:

$342.00

Step-by-step explanation:

38 x 90  = 3420

Answer:

72.2

Step-by-step explanation:

38 * 190%

Evaluate d−7 when d=10.

d−7=
plsss i need an answer

Answers

Answer:

Its 3

Step-by-step explanation:

If we know that d is 10 we can substitute d for 10 thus giving us 10 - 7 which is 3

Answer :

We are given,

d - 7 .....[eqⁿ (i)]

and we are also given the value of d :

d = 10

Now, just put the value of d = 10 in eqⁿ (i) we get :

10 - 73

Hence your final answer is 3.

I need help immediately!!​

Answers

F(4)=4(4)+5
Which equals
F(4)=21

Answer:

f (4) = 21

Step-by-step explanation:

the given equation is f (x) = 4x + 5

putting the value of x = 4

we get, f (4) = (4×4) + 5

f (4) = 16 + 5

f (4) = 21

i hope u got it

A submarine rises to the ocean's surface at 720 feet in 6 minutes. Find the points submarine's change in elevation per minute.

Answers

Answer:

The submarine gains 120 feet of elevation per minute.

Step-by-step explanation:

What is the ratio of boys to girls in Mrs. Carlton's class, which has a total of 31 students, 14 of whom are girls?

Answers

Answer:

17:14 or 17 to 14

Step-by-step explanation:

since you know there are 14 girls, subtract 14 from 31 and then you'll get 17. since its asking for a ratio of boys to girls not girls to boys, you put boys first, then girls. so your answer will be 17:14

5.) 3x^2 - 13x + 4 = 0

Answers

Answer:

Answer:

x= 1/3 or x=4

Step-by-step explanation:

Let's solve your equation step-by-step.

3x2−13x+4=0

Step 1: Factor left side of equation.

(3x−1)(x−4)=0

Step 2: Set factors equal to 0.

3x−1=0 or x−4=0

x= 1/3or x=4

plz give brainlyest

The graph shows the amount of money Miguel earns after working x hours.



What is the rate of change of the amount earned with respect to hours worked for this function?

hours per dollar
hours per dollar
3 dollars per hour
13 dollars per hour
What is the slope of the line?

−3


3

Answers

Answer:

13 dollars

and slope is 3

Step-by-step explanation:

In which diagram are angles 1 and 2 vertical angles?

Answers

The first diagram since the two angles are opposite of each other

If the circumference of a circle is rational, the area is always rational.

Answers

Answer:

Yes!!!

Step-by-step explanation:

Since π is non-terminating non-recurring i.e., an irrational, thus the area will always be rational provided with the circumference is rational.

There were 45 runners sister erased in the first half of the race 2/3 of them dropped out in the second half of the race to fifth of the remaining runners chopped out how many runners finish the race

Answers

Answer:

9 runners

Step-by-step explanation:

Number of runners who started race = 45

Fraction that dropped off in the first half =. 2/3

Fraction of the remaining that dropped of in the second half = 2/5

Number of runners who dropped off in the first half :

(2/3) * 45 = (2 * 45) / 3 = 90 /3 = 30 runners

Runners left = (45 - 30) = 15

Number who dropped off in the second half :

(2/5) * 15 = (2 * 15) / 5 = 30 /5 = 6 runners

Number of runners who finished the race :

(15 - 6) = 9 runners

The length of a school bus is 12.6 meters. If 9 school buses park end to end with 2 meters between each one, what's the total length from the front of the first bus to the end of the last bus?

Answers

Answer:

129.4

Step-by-step explanation:

Calculation for what's the total length from the front of the first bus to the end of the last

First step is to multiply the given number of buses by the length of each one

Hence,

12.6 meters x 9 = 113.4 meters

Second step

Since there are 8 spaces in between we would multiply the 8 spaces by 2 meters

8 x 2 meters = 16

Now let calculate total length from the front of the first bus to the end of the last

16 + 113.4 meters =129.4

Therefore total length from the front of the first bus to the end of the last will be 129.4

Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.

Answers

Answer:

70 i am 100 percent sure

Step-by-step explanation:

1:10

7     70

I’ll give you BRAINLEST PLEASE HELP

Answers

Answer:

Help with what?

Step-by-step explanation:

If TRAP is an isosceles trapezoid, what is the value of X?
A. 6
B. 32
C. 28
D. 22
E. 15
F. Cannot be determined

Answers

it’s b because you simplify it to it’s simplest form

PLEASE ANSWER ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

112°

Step-by-step explanation:

according to the question

34°+34°+x=180°

68°+x=180°

x=112°

Line p intersects line a and b. a b. By which theorem is a1 ≈ a8

PLEASE HELP!!

Answers

Answer:

option a

Step-by-step explanation:

alternate exterior angle theorem

pLeAsE hElP mE...!!!!!!????? wut is 20 x 87

Answers

Answer:

69

jk 1740

Step-by-step explanation:

Answer:

well, the required answer is 1740

Step-by-step explanation:

it can be written as

=》 20 × ( 80 + 7 )

=》 1600 + 140

=》 1740

C=5/9(F−32)


The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true?


1. A temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of 5/9 degree Celsius.


2. A temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit.


3. A temperature increase of 5/9 degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius.


A) I only

B) II only

C) III only

D) I and II only

Answers

Answer:

D) I and II only

Step-by-step explanation:

Cesar, Carmen, and Dalila raised $95.34 for their tennis team. Carmen raised $12.12 less than Cesar, and Cesar raised $35 more than Dalila.

If x = the amount raised by Carmen, choose the expressions that represent the amount each other player raised.

Answers

Let Cesar's, Carmen's and Dalila's amount be represented by x, y and z respectfully.

Since they're money sum up to $95.34, the first expression will be;

x+y+z=95.34

Carmen_y_ is $12.12 less than cesar_x, so the equation will be ;

y=x-12.12

Cesar_x_raised $35more than Dalila_z. So the equation will be;

x=z+35

making z the subject, z=x-35 .

Substituting the Second equation into the first one, we get;

x+x-12.12+z=95.34

Subtracting the third equation into the new equation we get;

x+x-12.12+x-35=95.34

Simplifying, we get 3x- 47.12= 95.34.

3x=142.46

PLEASE HELP ME WITH THIS

Gwen borrows $300 from her parents to buy a bike. She agrees to pay them back with 3% simple interest every month for one year. What is the total amount of money Gwen will owe her parents? *
Just enter the numerical portion of your answer - no dollar signs or change needed!

Answers

Answer:

408

3 percent of 300 is 9.

So it is $9 every month times 12 months

is equal to 108 so add the 300 on top of the 108 = 408

Step-by-step explanation:

what is the graph for y=2x+1

Answers

Here I think this is the answer

How long is the rectangle? *
A rectangle is 5cm longer than it is wide.
The perimeter of the rectangle is 86cm.
How long is the rectangle?

Answers

Solution

here, length= 5cm

breath= ?

Perimeter= 86 cm

By the question,

Perimeter (P) = l×b = 86 cm

or, 5cm × b= 86 cm

or, b = 86÷ 5

or, b= 17.2 cm

Hhhjeeeeelllppppp pppplllllsss

Answers

Answer:

c= 89

Step-by-step explanation:

the angles of a triangle add up to 180

in this triangle, our angles are:

c-33

c-25

c-29

this means that

(c-33) + (c-25) + (c-29) = 180

3c - 87 = 180

add 87 to both sides

3c = 267

divide both sides by 3

c = 89

Solve log2x = log53 + 1 by graphing. Round to the nearest tenth.
What does X equal?

Answers

Answer:

3.2 plz help me to

Step-by-step explanation:

Answer:

3.2

Step-by-step explanation:

Help pls thank you !!

Answers

Answer:

B is correct 4⁷ is the final answer

Denise has $4.25 and needs to buy school supplies. She has a package of pencils that costs $1.75, a notebook that costs $1 and some erasers (x) that costs $0.25 each. At most, how many erasers can denise buy?

Answers

Answer:

6 erasers

Step-by-step explanation:

The pencils and the notebook together cost $2.75, from there you can calculate how many erasers.

1 eraser would bring the total to $3, therefore Denise can buy $1.25 more of erasers which is 5. 3 + 1.25 is $4.25. therefore Denise can buy 6 erasers

Answer:

he can buy 6 erasers

Step-by-step explanation:

because if you add 1.75 plus one and add 0.25 ....6 times it will equal 4.25 i hope this was helpful

What is 25*25?
Yehawwwwwwww

Answers

Answer:

625

Step-by-step explanation:

Answer:

25×25

25

× 25

______

125

+ 500

_______

625

Solve for the variable.
6x-5=12

Answers

Answer:

6x-5=12 +5

6x=17 :6

x=2.8333333333

Step-by-step explanation:

prove me wrong

2. This graph shows the solution for which inequality below?
10 20 30 40 50 60 70
80 90 100
A. = 25
B. 3x < 150
c x<10
D. 2x > 100
2
(A) A
в) В
( c) С
D

Answers

Answer:

the aswer would be B because x<50 therefor the highst posible value for x is 49 and 3x49 is 147 which is less than 150

The sum of twice a number and 18 is 5 less than three times the number, Write the
equation and find the number.

Answers

Step-by-step explanation:

Let x represent the number.

We have 2x + 18 = 3x - 5, therefore x = 23.

The number is 23.

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