Mathematics High School

Julie has 3 boxes of pens.
The diagram shows expressions for the number of pens in each box.
Look at these equations,
a = b + 9
b = c-2
Write an equation to show the relationship between a and c.

Answers

Answer 1

Answer:

a = c + 7

Step-by-step explanation:

just plug in (c - 2) for b in a = b + 9

Related Questions

Solve for X
a) 6
b) 11
c) 0
d) 12 ​

Answers

Step-by-step explanation:

2x + 210 + x + 75 = 180

3x = - 105

x = - 35

what????

Please help will give brainliest

Answers

Answer:

24 because 6 times 4 equal 24 and thats the area

Step-by-step explanation:

Find the value of x in the triangle shown below.
2
7
x

Answers

Answer:

[tex] {2}^{2} + {x}^{2} = {7}^{2} \\ {x}^{2} = 49 - 4 \\ x = \sqrt{45} \\ x = 6.708[/tex]

Answer:

By using Pythagoras theorem we get

H²=p²+b²

7²=2²+x²

X²=7²-2²

X=√(49-4)=√45=3√5

Step-by-step explanation:

Match the reason with the statements please. Thank you!

Answers

Answer:

st 1 _ r 3

st 2 _ r 1

st 3 _ r 2

st 4 _ r 4

A teacher gave a 3-question multiple choice quiz. Each question had 4 choices to select from. If the a student completely guessed on every problem, what is the probability that they will have 2 or less correct answers?

Answers

Answer:

0.9844

Step-by-step explanation:

This is a binomial probability problem.

Probability of getting a correct answer: p = 1/4

Probability of getting an incorrect answer: q = 3/4

Number of questions; n = 3

Thus;

probability of 2 or less correct answers is; P(x ≤ 2) = P(X = 2) + P(X = 1) + P(X = 0)

From binomial probability the formula is;

P(X = x) = C(n, x) × p^(x) × q^(n - x)

P(X = 2) = C(3, 2) × (¼)² × (¾)¹

P(X = 2) = 3 × 0.0625 × 0.75

P(X = 2) = 0.1406

P(X = 1) = C(3, 1) × (¼)¹ × (¾)²

P(X = 1) = 3 × 0.25 × 0.5625

P(X = 1) = 0.4219

P(X = 0) = C(3, 0) × (¼)^(0) × (¾)³

P(X = 0) = 0.4219

P(x ≤ 2) = 0.1406 + 0.4219 + 0.4219

P(x ≤ 2) = 0.9844

Pls help you can do either one

Answers

Answer:

4. 20.8 in

5. 60 degrees

6. i cant see number 6 so yah

Step-by-step explanation:

Davindra made a paper box that is 8 in. Long, 5 in. Wide, and 1 in. High. It is shaped like a rectangular prism. What is the surface area of the box? *

Answers

Answer:

106 in²

Step-by-step explanation:

Given that :

Davindra made a paper box that is 8 in. Long, 5 in. Wide, and 1 in. High.

Using the relation :

SA=2lw+2lh+2hw

Surface area :

2(lw + lh + hw)

l = 8 ; w = 5 ; h = 1

Surface area :

2(8*5 + 8*1 + 1*5)

Surface area :

2(40 + 8 + 5)

= 2(53)

= 106 in²

Find the perimeter of the shape

Answers

Answer:    21

Step-by-step explanation:

add all the numbers together as many times as they are shown on the shape so 2.8=4 times

1.4= 2 times

and 3.5= 2 times

A number g multiplied by -8 is at least 1/4​

Answers

G is -0.04 or greater.
G is -0.04 or greater.

a street sign is 88 inches tall how tall is it in feet and inches​

Answers

1 ft=12 in
7x12=84
88-84=4
Answer:7ft 4 in

Three stores are selling the same brand of soda for different prices. Which stores has the better price? Store x / 4 for $2.48 Store Y / 5 for $3.00 Store Z:\$0.62 for 1 can

Answers

Answer:

store y has the best price

Step-by-step explanation:

store x you would pay .62 for each soda

store z you would pay .62 for one soda

and store y you would pay .60 for each soda so you would want to pick the one with the lowest price on each and you would get more for a lower amount of money.

What is the length of K Street and D Street?

Answers

Answer:

775 ft

Step-by-step explanation:

1000/800= K/620

800K = 620,000

K = 775 ft

Find the value of each variable using sine and cosine. Round your answers to the nearest tenth.

Answers

Answer:

x ≈ 9.5 , y ≈ 15.3

Step-by-step explanation:

sin32° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{18}[/tex] ( multiply both sides by 18 )

18 × sin32° = x , then

x ≈ 9.5 ( to the nearest tenth )

cos32° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{y}{18}[/tex] ( multiply both sides by 18 )

18 × cos32° = y , then

y ≈ 15.3 ( to the nearest tenth )

does anyone know the answer??

Answers

Answer:

rational

Step-by-step explanation:

Any rational number can be expressed in the form

[tex]\frac{a}{b}[/tex] ← where a and b are integers

Given

[tex]\sqrt{4}[/tex] = - 2 or + 2

Since - 2 =  [tex]\frac{-2}{1}[/tex] and 2 = [tex]\frac{2}{1}[/tex] ← both in rational form, then

[tex]\sqrt{4}[/tex] is rational

4. An extension ladder is leaned up against a building to reach a window that is 16.1 feet
from the ground. The base of the ladder is 10 ft from the building.
a How long is the ladder if it is fully extended?
b. What is the angle that the ladder makes with the ground?
C. What is the angle of the ladder with the building?

Answers

Answer:

a) ~18.95ft

b) ~58°

c) ~32°

20 large plastic bottles can be recycled to 1 fleece jacket.
How many fleece jackets can be made with 280 large plastic bottles?

Answers

Answer:

14 jackets

Step-by-step explanation:

20 plastic bottles=1 fleece jacket

280 plastic bottles=?

(280×1)÷20

=14

It would be 14 fleece jackets would be made

Write an equation that represents the line.
Use exact numbers.

Answers

y = 3/4x + 2
The slope is 3/4 and y intercept is 2
equation:

y=3/4x + 2

explanation:
when writing an equation for a linear graph finding the slope, you always wanna use the equation y=mx + b. b represents the y- intercept, m represents the slope.

in this equation the slope is 3/4 and you can find this by finding two “friendly points” which are basically points that are exactly on the in between part between 4 cubes. an example of two friendly points on this graph you can use to find the slope are (0,2) and (4,5). to find the slope using these points, count how many spaces are up and then to the right to get to the point. when writing the slope, the number of spaces up goes on top of the amount of spaces to the side. here it is 3 up and 4 to the side, meaning it will be 3/4.

put it all together you get y= 3/4x +2

if you find this helpful, would you mind giving brainliest?

someone please answer this!!

Answers

Answer:

second option

Step-by-step explanation:

the side length of AB should be equal to XY as they are corresponding sidelengths

Answer:

BC=YZ

AB=XY

Step-by-step explanation:

Line BC is congruent to Line YZ

Line AB is congruent To line XY

The letters N, T, and O are arranged in a random order. What is the probability that the arrangement spells a three-letter word.

Express your answer as a simplified fraction.

Answers

Answer:

1/3

Step-by-step explanation:

Three letters can be arranged in:

3! = 6 ways

We can spell two words from using the letters N, T, O:

"Not" and "Ton"

So there are 2 favorable outcomes out of 6 total outcomes:

P(3-letter word) = 2/6 = 1/3

Answer:

probability of getting I letter word =1/3

Lyla has $1 and 5 dimes in her pile. Harrison has 15 dimes in his pile. If Lyla gives Harrison $1 and
Harrison gives Lyla 10 dimes, will the two piles still be equal in value? Explain.
Select the correct choice below and fill in the answer boxes to complete your choice.

Answers

Answer:

yes, they will be equal

Step-by-step explanation:

I think they will be equal, because 10 dimes=$1

4. The length of a rectangle is represented by 8x-3. The width of the
rectangle is represented by 2x. The perimeter is 34 centimeters. Which
equations represent the perimeter? Choose all the correct answers.
A. 4(2x+8x-3)=34
B. 2(2x)+2(8x-3)=34
C. 2x+8X-3+2x+8x-3=34
D. 20x-6=34
E. 2x(8x-3)=34

I NEED THIS ASAP!!!!!

Answers

Answer:

B, C, & D

Step-by-step explanation:

please help I'm timed

Answers

Answer:

60 students-530 Question 1.

Step-by-step explanation:

Please help me with this question 14 + what = 6

Answers

Answer:

-8

Step-by-step explanation:

14 + x = 6

6 - 14 = -8

brainliest plz

In Ms. Perron’s class, 25% of the class are boys. There are 6 boys in the class. What is the total number of students in Ms. Perron’s class?

Answers

Answer:

24

Step-by-step explanation:

25%= 1/4 of the class

1/4 *x=6

x=24

6 / x = 25% / 100%

6 multiplied by 100 = 600
600 divided by 25 = 24

Ms. Perron has 24 kids in her class.

Explanation: 25% of 24 is 6.

The author also uses _________ to describe the building and to give the reader a sense of "forbidding" or imposing fear.

repetition
imagery
irony
personification

Answers

Answer:

Imagery

How:

By describing the building through imagery, explaining it's appearance/past/history/story (and assuming it's bad), gives the listener a feeling of "forbidding" or imposing fear.

DEFINITIONS:

Forbidding: Unfriendly or threatening in appearance.

Imposing fear: Someone noticeably feared by something/someone.

Factor the following quadratic expression.

2p2−19p+35


I don't get this

Answers

Answer:

(p - 7)(2p - 5)

Step-by-step explanation:

[tex]2 {p}^{2} - 19p + 35 \\ \\ = 2 {p}^{2} - 14p - 5p + 35 \\ \\ = 2p(p - 7) - 5(p - 7) \\ \\ = (p - 7)(2p - 5)[/tex]

Select all the true statements.




(1048 – 876) ÷ 4 is four times as large as (1048 – 876).


(1048 – 876) + 24 is 24 times as large as (1048 – 876).


(1048 – 876) – 17 is seventeen less than (1048 – 876).


1/2 × (1048 – 876) is half as large as (1048 – 876).


(1048 – 876) × 4 is four more than (1048 – 876).

Answers

Answer:

C and D are are the true statements

which of the three curves drawn matches the graph of y = 2x 2 + x

Answers

Can’t see the curves!

The online store charges a flat rate of $4.99 for shipping. Ashley is buying a book for $21.93. She could buy the same book with a hardcover for $2.50 more.
Paying 15 pionts Pls Help

Answers

Answer:

C,D,A,B

Step-by-step explanation:

C - $24.74

D - $25.93

A - $26.92

B - $26.98

Find the slope of the line through the pair of points (-6,-5) and (-2,6)

Answers

Answer:

11/4

Step-by-step explanation:

Hi!
The slope is change in y over the change in x.
So... 6-(-5) over -2-(-6).
It is 11 over 4.
The slope of the line is 11/4.
Hope this helps :)
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