Mathematics High School

need helppppp!!!! I'll brainlist quickkkk​

Need Helppppp!!!! I'll Brainlist Quickkkk

Answers

Answer 1

Answer:

7a is 24

bis 18

c is -15

Step-by-step explanation:

7a. 2(3)+3(6)

6+18=

24

7b. 6(6)-(3)(6)

36-18=

18

7c. 3(3)-4(6)

9-24=

-15

Related Questions

convert 3x- y=7 to slope intercept form

Answers

Answer:

y = 3x - 7

Step-by-step explanation:

-y = -3x + 7

divide both sides by -1 to get rid of the negatives

y = 3x - 7

Carrie needs to determine the number of towels that will fit each row along the back of the shower if the back of the shower measures 6 feet long and each towel is 2/3 a foot long which equation shows how to determine the number of tiles that will fit in each row

Answers

Answer:

6 / 2/3 = 9

Step-by-step explanation:

Carrie want to find out the number of towels that will fit each row along the back of the shower

The back of the shower measures 6 ft long

Each towel is 2/3 foot long

Therefore the equation which shows how to determine the number of tile that will fit in each row is

Since 1 tile is 2/3 foot long then the number the number of tile in each row is

= 6 / 2/3

= 6 ×3/2

= 18/2

= 9


[tex] \sqrt{147} - \sqrt{75} + \sqrt{27} [/tex]
​

Answers

I am not smart at math I have no idea

which operation will undo subtractraction

Answers

Answer:

addition

Step-by-step explanation:

addition and subtraction undo each other same with multiplication and divsion

Lines n, m, and p are drawn on the coordinate grid below.

Which choice is NOT true?

Answers

C. All of the rest of the statements are true.

(13 points & to get BRAINLIEST, plz give a good explanation so I can improve)

Indications:
Ignore my work for number 1, I need help with number 2. I must submit before 11:59 and it would be really appreciated to get an explanation, not only the answers to the questions.

Answers

I would just like to point out that you solved your first equation incorrectly.

I didn't try finding the correct answer but -23 + 5 = -18 not 18, you forgot the negative sign!!!

plzzzzzz help due in 20 mins​

Answers

the answer is lines 3 and 5

A roller coaster climbs 115 feet on the first hill then drops 40 feet down. On the second hill the roller coaster climbs another 70 feet then drops 45 feet. What is the height at the end of the second hill Write an addition expression and evaluate. Make a T chart using Drops (-) and Climbs (+)

Answers

Answer:

Step-by-step explanation:

h=115-40+70-45

=115+70-40-45

=185-85

=100 ft

How many unit cubes are required to create a larger cube with edge length of 3 units? Can I also get an explanation so I know how it's done? Thanks :)

Answers

Answer:

The unit cubes that are required to create a larger cube with an edge length of 3 units is:

27 cubes.

Step-by-step explanation:

To identify the number of cubes you need to create a larger cube, you must think in the number of cubes of the length (3 cubes in this case), and use the exponent 3, because you need to form a cube. Below I'll show you:

[tex]3^{3}= 27 cubes.[/tex]

To understand it in a better form, suppose that you need a cube with an edge of 5 units, in that case, remember you use the number 5 how base and the exponent is 3, because is a cube, in that case, it would be:

[tex]5^{3}= 125 cubes[/tex]

If it wasn't a cube but a square, you must elevate to the number 2, in the case of the cube is elevated to 3, so, the unit cubes that are required to create a larger cube with an edge length of 3 units is 27 cubes.

If you wanted to find the difference of 6/25-4/5,what common denominator should you choose?why?​

Answers

Answer:

25

Step-by-step explanation:

25 should be chosen as the common denominator. 5 is a possible common denominator because the other fraction has a denominator of 5 and 25 is divisible by 5, however, the numerator cannot be evenly divided by 5. Attempting to do so would cause a much more difficult equation. On the other hand, the denominator 5 can be changed to 25 by multiplying by 5, and 4 can also be changed by multiplying by 5.

4/5 x 5 = 20/25

6/25 - 20/25 = -14/20 = -7/10

Susan made 168 cupcakes and gave some to her 21 students.
She then had 1/2 of her cupcakes left. On average, how many
cupcakes did she give to each of the 21 students?

Answers

Answer:

4

Step-by-step explanation:

The diameter of a planet is 1280 mi. Find the volume of the planet ?

Answers

Answer:

=098066219.4435 miles cubed

Step-by-step explanation:

Use the radius, 1280/2 = 640

Then use the formula for finding the volume of a sphere.

In the figure, m∠4=(10x+5)° and m∠5=(20x−15)° .

For what value of x is m∥n ?

Enter your answer in the box.
x =

Answers

Answer:

2

Step-by-step explanation:

plug in the answer

The value of x from the given angles is 6.3.

Given that, m∠4=(10x+5)° and m∠5=(20x−15)°.

What are angles of parallel lines?

Angles in parallel lines are angles that are created when two parallel lines are intersected by another line called a transversal.

From the figure given below,

m∠4+m∠5 = 180° (Adjacent angles adds upto 180 degree)

⇒ (10x+5)°+(20x−15)° = 180°

⇒ 10x+20x+5-15 = 180°

⇒ 30x-10 = 180°

⇒ 30x=190

⇒ x=190/30

⇒ x=6.3

Therefore, the value of x from the given angles is 6.3.

To learn more about the adjacent angles visit:

https://brainly.com/question/12838185.

#SPJ5

Need help on this ASAP

Answers

76 granola bars
to solve this, you need to multiply 15 by 5 for the big boxes and 8 by 2 for the small boxes. 15 x 2 = 60 and 8 x 2 = 16, therefore adding them together gets you 76.

Find the solution to the syster
y = 2x = 5
y = X - 2

Answers

Answer:

Both of these equations are in slope-intercept form. The slope-intercept form of a linear equation is: y=mx+b

Where m is the y-intercept value.

y=-2x+5

y=-2x+20

The slope of the two equations are: m1=−2 and m2=−2

Step-by-step explanation:

Because the have the same slope it means the lines represented by these two equations are either parallel or are the same line.

The y-intercepts for the two lines are:b1 = 5 and b1=20

In Aunt Peggy’s backyard there are cows and chickens. There are 20 more chickens than cows. The total number of legs is 130. How many chickens and how many cows are there? (Each cow has 4 legs, each chicken has 2 legs.) PLZ HELP! Will mark brainliest

Answers

Answer:

There are 15 cows and 35 chickens

Step-by-step explanation:

So first you take 20 and multiply it by two since there are two legs on each chicken. You get 40.

Then you subtract 40 from 130. You get 90.

Since the cow has double the legs of the chicken, you can count the cow as two chicken.

You divide 90 by 3. You get 30.

To get the number of chicken you divide 30 by 2 and you get 15.

You add 15 and 20 together and you get 35 chickens.

To get the number of cows you divide 30 by 2 and you get 15.

So you have your answer. 35 chicken and 15 cows.

Keiko purchased a prepaid phone card for $20 . Long distance calls cost 16 cents a minute using this card. Keiko used her card only once to make a long distance call. If the remaining credit on her card is $17.28 , how many minutes did her call last?

Answers

Answer:

17 minutes

Step-by-step explanation:

To answer this question, all we have to do is subtract the original amount of money on the phone card by what is remaining after Keiko's call:

20 - 17.28 = 2.72

Now, we divide this number by 0.16:

2.72 / 0.16 = 17

So, Keiko's call lasted 17 minutes

Hope this helps :)

Credit card A is running a promotion where they will charge 0% interest for the first year, and then 0.8% compounded continuously after that. Credit card B has an interest rate of 0.7%, also compounded continuously. If you are going to make a $500 purchase and plan to not make a single payment for 2.5 years, which credit card should you go with? Write the equation showing the total balance at the end of 2.5 years for that card. How much money invested at 5% compounded continuously for 3 years will yield $820

Answers

Answer: 0.1

Step-by-step explanation:

your going to substact credit card a and b and then what ever you get will be your answer

Helppp meeee plzz. Thank you

Answers

Answer:

midpoint is (−6,11 over 2)

can someone help me with the math on my page i will mark them brainliest pls

Answers

Answer:

Step-by-step explanation:

ok

Order the numbers from least to greatest

Answers

Answer:

1.4, 2, √7

Step-by-step explanation:

√7 = 2.65 (rounded to nearest hundredth)

1.4 is the smallest

2 is next

√7 is the biggest

Hope I helped :)

Please consider Brainliest :)

Is it possible to form a triangle using 15 in, 12 in, 8 in ? Why or why not?

Answers

Answer:

No

Step-by-step explanation:

Use the pythagoreon theory

15^2+12^2=8^2

454=64

Since they do not equal the same number you can not form a triangle, and no matter how many times you switch the numbers around they will not equal.

Nolan gave out a survey to some students in his school about their favorite color. Students could choose between red and purple. 238 of those surveyed said their favorite color was red. 66% of the students surveyed said their favorite color was purple. How many students were surveyed in total?​

Answers

Answer:

700

Step-by-step explanation:

100%-66%=34%

34% equals the 238 that is red

238÷34%=7 people per percentage

7×66%= 462 students that chose purple

462+238=700 which should be the total amount of people surveyed.

(4x+2y=4
(6x +2y=8
Solve by elimination

Answers

Answer: Y=1

Step-by-step explanation:

Hope this helps

Zoe, Latoya, Christina, and Rhoda each used a different method to verify that Negative 2 (3 x minus 12) = negative 6 x + 24.

Answers

Answer:

Rhoda

Step-by-step explanation:

sub same values of x into both expressions. The expressions are equivalent if the values of the expressions are equal

Answer:

rhoda

Step-by-step explanation:

find the cube root of 125 ​

Answers

Answer:

the cube root of 125 is 5.

5x5x5=125

Step-by-step explanation:

To find the cube root of a number you need to think of a number that if you multiply it 3 times by itself you would get the the number that is being cube rooted.

Explain! Prize! Thank you!

Answers

Answer:

60 pages in 2 days

Step-by-step explanation:

120 pages in 4 days is equivalent to a 30 pages in 1 day rate (divide both by 4). The only other rate that is equivalent to a 30 pages in 1 day rate is 60 pages in 2 days because 60 = 30*2 and 2 = 1*2.

Answer:

60 pages in 2 days is the answer

compare and contrast between x-intercept and y-intercept

Answers

Answer:

"The x-intercept is the point at which the graph crosses the x-axis... ...The y-intercept is the point at which the graph crosses the y-axis." (Lumen)

The x-intercept is on the horizontal axis while the y-intercept is vertical axis. Aside from that they are practically the same and serve the same purpose while graphing, they just go in differing positions.

The intercepts of a graph are points at which the graph crosses the axes. The x-intercept is the point at which the graph crosses the x-axis. ... The y-intercept is the point at which the graph crosses the y-axis. At this point, the x-coordinate is zero.

urgently need help from whoever knows how to use keep me change me flip me!!

Answers

Your going to keep the first fraction then change the sign to multiplatation and flip the last fraction. -77/9 (mixed number into fraction) x -7/11

539/99 and then you can simplify that into 5 4/9

Answer:

ik you have a answer already I just really needed points so please don't repeat the answer

If the smallest angle of rotation for a regular polygon is 18°, how many sides does polygon have?

Answers

Answer:

20

Step-by-step explanation:

360÷18=20

thus ,the polygon have 20 sides

Answer:

20

Step-by-step explanation:

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