Mathematics High School

MATH, HELP ASAP
TWO STEP EQUATIONS
What is three times the sum of a number and five times the number is thirty six what is the number

Answers

Answer 1

Answer: 3(n+5n) = 36  n = 2

Step-by-step explanation:

Distribute 3: 3n+ 15n = 36

Add the coefficient of variable: 18n= 36

Divide by 18 on both sides: n = 2

Related Questions

I need help Please!!!!​

Answers

i think it’s 48 inches

Answer:

48 inches

Step-by-step explanation:

[8/3](18) =48

laurague here is your answer:)

Answers

Got it :)Thank you!!!!!!!

1. 6x + 2y = -12
4x + 3y = 7

2. 4x - y = 26
5x - 4y = 8

3. 5x + 3y = 13
17x + 8y = -16

using elimination to solve each system of equations

Answers

Answer:

J71763eua8w8w8us

Nakshatra w

Nskd8w8

I2991992



In the book club, the girl to boy ratio is 6 to 9. If there are a total of 45 students, how many girls are there

Answers

30
:)
Hope this helps!!!!

What is the value of X?

Answers

Answer:

[tex]x=45[/tex]

Step-by-step explanation:

Because the outer angles of a parallelogram always add up to [tex]360[/tex]°, the followijg equation can be used:

[tex]3x+x+3x+x=360→8x=360→x=45[/tex]

plss help (ZOOM IN TO SEE FULL PIC)

Answers

Answer:

20

Step-by-step explanation:

root 144+ 256= 400 root 400 =20(Pyto Th.)

so 20

if my answer helps please mark as brainliest.

Answer:

20

Using the formula of Pythagoras theorum 20 is the answer.

answer this question​

Answers

It’s facing the left to its negative and if you count rise over run then the slope is -3 so

Correct answer is the last option
The answer is the last choice

Can someone help me please

Answers

Answer:
17 inches

Explanation:
The Pythagorean theorem states that a^2+b^2=c^2 when c is the longest side (the hypotenuse) and a and b are the other two sides. This theorem can only be applied to right triangles.

First, plug the values into the formula.
a^2+b^2=c^2
8^2+15^2=c^2
64+225=c^2
289=c^2
Take the square root of both sides
c=17

I hope this helps!

Solve the system of equations:
y=2x
Y=x^2-3

Answers

Answer:

C

Step-by-step explanation:

The two solutions are (-1,-2) and (3,6)

Which set of measurements could be the side lengths of a right triangle?
A. {3 in., 5 in., 7 in.}
B. {6 in., 9 in., 12 in.}
C. {8 in., 15 in., 17 in.}
D. {10 in., 20 in., 30 in.}

Answers

Answer:

D

Step-by-step explanation:

you simply add the 2 smaller sides, and if their sum equals the bigger side, its correct!

PLEASE HELP MANY POINTS AND WILL MARK BRAINLIEST

Answers

Answer:

x=42

Step-by-step explanation:

i don't know how to explain it??

not good at explaining things

HELPPPPPPPPPPPPPpPppp

Answers

Answer:

Answer c..... can i get brainliest ?

Step-by-step explanation:

Just substitute (2,0) in the equation

2 for x

0 for y

Show work pls for briskly

Answers

Answer:

She'll make 6 yard sticks

as,

1/2 yard = 1 pillow

1 yard = 1 * 2 / 1 = 2

so,

3 yard = 3 * 2

Hope this helped

Hope this helped ALL THE BEST !!

Answer:

6 pillows

Step-by-step explanation:

1/2*3=3


B. Prove the following using indirect proof.
1. If x = 3, then 3x + 5 ≠10
2. If a triangle is an isosceles triangle ( 2 sides are equal), then the base angles
cannot measure 92 degrees.
3. Given: 3 - 5 ≠ 13
Prove: r≠6
4.Given: x = 5
Prove: 2x + 4 12
​

Answers

Answer:

jsjsusjsksksisidjjdsksjks

Did I do it rightly?

Answers

Yes. If the segment only has 2 points, it can be named both ways.

Help please I need help with this

Answers

Answer:

The answer is 1.53 for week 1 and

week 2 is 1.2

Step-by-step explanation:

I NEED HELP FAST PLEASE !!!!!!!!!!! The grade of a hill steepness represented as a percent. Jim tracks his walking speed up different hills. What does the rate of change , or slope , represents in this situation a= the rate represents an increases in speed for each 1% b= the rate represents a decrease in speed for 1% grade c = the rate represents a decrease in speed for each 1% grade increase D= the rate represents no change in speed for each 1% grade decrease

Answers

Answer:

C

Step-by-step explanation:

slope=walking speed /%

negative slope

so that rules out a and d

and you can see that as the percent increases the speed decreases.

so I think It would be C.

Solve for x

x = ____

30
45
22.5​

Answers

Answer:

45

Step-by-step explanation:

x+3x+90=180

4x=180

X=45

What is the area of the shaded region?
26 km
35 km

Answers

Answer:35/2=17.5*26= ?

Step-by-step explanation:

A bag contains only red, green, brown and yellow marbles. The probabilities of selecting each colour are shown below. Colour Red Green Brown Yellow Probability 0.2 0.3 x 0.1 Find the probability of selecting a brown marble.

Answers

Answer:

0.4

Step-by-step explanation:

Given that:

Probability of :

Red _____Green ___ Brown _____ Yellow

0.2 ______ 0.3 ______ X ________ 0.1

Since the bag contains only red, green, brown and yellow marbles ;

The sum of each color's probability should sum up to 1;

ΣP(x) = 1

Hence,

0.2 + 0.3 + x + 0.1 = 1

0.6 + x = 1

x = 1 - 0.6

x = 0.4

P(brown) = 0.4

What is the answer to (a²)(a⁵)(a⁷)

Answers

Answer:

The answer would be a^70

Step-by-step explanation:

Hope this helped!! If it is wrong please tell me and I will re-check my answer. :)

Since there are parenthesis you just multiply the exponents and get A^70

Hope this helps

A regular pentagon and an equilateral triangle have the same perimeter. The perimeter of the pentagon is 5(x-2) inches. The perimeter of the triangle is 4(1/2x+2) inches. What is the perimeter of each figure?

Answers

Answer:

20 inches.

Step-by-step explanation:

We equate the perimeters:

5(x - 2) = 4(1/2x + 2)

5x - 10 = 2x + 8

5x - 2x = 8 + 10

3x = 18

x = 6

The perimeters = 5(6-2)

= 20 inches.

A basket contains 2 cartons of white milk, 3 cartons of chocolate milk, and 3 cartons of strawberry milk. A carton of milk is pulled out of the carton without replacement. Then another carton of milk is pulled out without replacement. What is the probability of pulling out 1 carton of chocolate milk followed by another carton of chocolate milk?

Answers

Answer: 3/8.

Step-by-step explanation: You have to write a fraction with the amounts of milk in the denominator and the amount of chocolate in the numerator.

Answer:

3/28

Step-by-step explanation:

Total number of cartons:

2 + 3 + 3 = 8

Let cm be the chocolate milk, there are 3 cartons of cm.

The probability of the first pull of cm is:

P(cm) = 3/8

Then we have 7 total left and 2 cm.

The probability of the second cm is:

P(cm) = 2/7

Now the probability of the two pulls:

P(cm and cm) = 3/8*2/7 = 3/28

Which expression is equivalent to -4x - 36?

Answers

Answer:

if it's not multiple choice, I'd say 36 + 4x

Step-by-step explanation:

Commutative property

Answer:

D.) -4(x + 9)

Step-by-step explanation:

Plz mark brainliest

a standard toilet uses 1.6 gallons per flush. If a toilet is flushed four times per day, how much water will be used in a month(30days)?

Answers

Answer:

192 gallons

Step-by-step explanation:

1.6 gallons x by 4 (the amount of times flushed in a day) = 6.4 gallons a day

6.4x30 (days in a month) = 192

192 gallons of water is being flushed a month

Answer:

192 gallons

Step-by-step explanation:

The cube above has side lengths of 1 unit. What is the volume of the cube?

Answers

The volume of the cube is 1

Identify the slope of the line in the graph.

Answers

Answer:

-1/2

Step-by-step explanation:

Slope is calculated by rise over run.

In this case, the rise is 1, and the run is -2.

So, the slope is -1/2.

Let me know if this helps!

which of the following is NOT a monomial?
a. x-4
b. 22xy
c. 3
d. -11x

Answers

answer is (a)
its a binomial
not a monomial

The average cost for a gallon of gasoline in 2006 was $2.45. In 2007, the average cost of a gallon of gasoline was $3.29. What is the approximate percent of change in the cost of a gallon of gasoline?
A. 25%
B. 35%
C. 75%
D. 135%

Answers

Answer:B

Step-by-step explanation:

2.45(0.35)= 0.8575+2.45= 3.30

B. Because 2.45(0.35)=08575+2.45=3.30

Can you solve the equation?

Answers

Answer:

x=3 and 9

Step-by-step explanation:

; x-3=0

x=3 (change side change mark)

and

[tex] \frac{2}{3} x - 6 = 0[/tex]

[tex] \frac{2}{3} x = 6[/tex]

[tex]x = 6 \times \frac{3}{2} [/tex]

change side change mark.

So, x=9

If u wanna check the answer you can check by substitution x=3 and 9 in equation.

hope it helps you ☺️

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