Mathematics Middle School

please help me finish this part of my study guide

Answers

Answer 1

Answer:

(5,15)

Step-by-step explanation:

We know that 225 = 15a + 10c, and he purchased a total of 20 tickets, so

a + c = 20, using this, we know that c = 20 - a, we can substitute this for c in 225 = 15a + 10c to get:

225 = 15a + 10(20 - a) =

225 = 15a + 200 - 10a

225 = 5a + 200

25 = 5a

a = 5

Now we substitute 5 for a:

225 = 15a + 10c

225 = 15(5) + 10c

225 = 75 + 10c

150 = 10c

c = 15

so a = 5 and c = 15, the solution is (5,15)

P.S. I'm the guy who did your other question

Answer 2

5,15 i think sorry if wrong

Related Questions

In the table, Pattern A uses the rule "add 3" and Pattern B uses the rule "add 9."

Answers

Statement 1 is true.
-Hope this helps, have a nice day! :)

option A. is the correct answer

can someone help me ?

Answers

Alright so A triangles perimeter is always going to be 90°

So for #1 You would add 18+24= 42 then subtract 42 from 90. 90-42=48. So for the first equation the side would be 48ft.

And for #2 You add 41+40= 81 then subtract 81 from 90 90-81=9 so the answer to the second equation would be 9 ft.

Hope this helps! :)

Answer:

Step-by-step explanation:

a² + b² = c² (pythagorean theorem formula)

let's take 18 as a and 24 as b

So, you'll write it as

18² + 24² = c²

324 + 576 = 900²

c² =810000

c= [tex]\sqrt810000[/tex] = 900

c=900ft

PLEASE HELP ME WITH THIS
A kitchen counter will be designed according to the measurements of the diagram in the image. What is the area of the surface of the counter in square feet?
A. 27 ft²
B. 31.5 ft²
C. 36 ft²
D. 40 ft²

Answers

B. 31.5 ft^2 because you find the area of each rectangle and add them and then find the area of the triangle and add it in to get 31.5 ft^2

3 x 5 = 15ft
3 x 4 = 12ft
3 x 3 = 9 divided by 2 = 4.5
15 + 12 + 4.5 = 31.5 ft

show work plz answers i know just tell me the equation that equals the answer or explain all how to do it

Answers

Step-by-step explanation:

you find the blank number by finding the pattern. on number 9 the number increases by 10 every time. you find the mean by adding all the numbers on question 9 and finding the average.

example say its 0 5 10 _ 20 25

you can assume the blank is 15 because the pattern is +5

then you add all of them together which is 75

then you find the average or mean. you find this by dividing it by the numbers you started off with. with this example you divide it by 6 because we started with 6 numbers.

the mean would be 12.5

hope this helped

Answer:

BLICKY

Step-by-step explanation:

13. Write the quantity in simplest exact form.
√5

Answers

Hehehehehehejtnevehege

The square root of 5 can’t be simplified even more than it already is love~ :3

Find the perimeter of the figure.

Answers

Answer:

97 cm

Step-by-step explanation:

10+3+3+33+33+15=97

Answer:

97 cm

Step-by-step explanation:

Hi there!

The perimeter of a figure is the distance around it. To find P, add all the edge measurements:

P = 10+3+33+15+33+3

P = 13+48+36

P = 61+36

P = 97

Therefore, the perimeter of the figure is 97 cm.

I hope this helps!

Consider the following equation. x · y = z, where x < 0 and y > 0

Which one of the following statements is true?
A. z > 0
B. z < 0
C. z ≥ 0
D. z ≤ 0

Answers

Answer:

Step-by-step

im better bby

Answer:

Step-by-step explanation:

Using -5 (as x because it’s less than 0) times 4 (as y because it’s more than 0) as examples, you’d get -20 (as z). If you do a solution set, you’d see a pattern of only negative numbers. Hope this helped, and tell me if I’m wrong, no hurt feelings

ok heelp ummmm........

Answers

Answer:

Step-by-step explanation:

If a cylinder has a volume of 226.2 cubic centimeters and a radius of 3 centimeters, what is the height of the cylinder, in centimeters? Use π≈3.14. Round your answer to the nearest whole, if needed.

Answers

V = π r^2 h
226.2 = (3.14) (3)^2 h
226.2 = (3.14) (9) h
226.2 = 28.26 h
226.2 = 28.26 h divided by 28.26
226.2 divided by 28.26 = h
8 = h

I think h=8 --> emphasis on the I tHiNk :<

If 90 females and 120 males out of 504 total students get to school by car, what is the relative frequency of females who get to school by car in relation to the total students at the school?

Answers

Answer:

0.1786 = 17.86%

Step-by-step explanation:

120 + 90 = 210/504 journey by car

Relative frequency of 90/ 504

= 90/504 =0.178571429

0.1786 = 17.86%

The requried relative frequency of females who get to school by car in relation to the total students at the school is approximately 0.1786 or 17.86%.

What is the relative frequency?

Relative frequency is a measure that indicates the proportion or percentage of times an event occurs in relation to the total number of events. It is calculated by dividing the frequency of an event by the total number of events. The result is a decimal or a percentage.

Here,
The total number of students who get to school by car is 90 + 120 = 210.

The relative frequency of females who get to school by car is the number of females who get to school by car divided by the total number of students at the school, which is 504:

90/504 = 0.1786

Therefore, the relative frequency of females who get to school by car in relation to the total number of students at the school is approximately 0.1786 or 17.86%.

Learn more about relative frequency here:

https://brainly.com/question/30466267

#SPJ3

help please or else I will delete your face

Answers

Answer:

Step-by-step explanation:

(3/4)x=15

x=15 ÷ 3/4

x=20

A graphic shows that Maya makes $3 for a each bracelet she sells at a craft fair. What ordered pair shoes this relationship? What does this ordered pair represent?

Answers

B (3,9); Maya sells 3 bracelets and makes $9.

answer: B

explain: 3x3=9

3,6,9

70 points and the right question will get brainlistee!!! I NEED HELP ASAP it’s a test need due today!!!!!!!!!!

What association does the scatter plot show?

A. Positive Nonlinear Association

B. Positive Linear Association

C. No Association

D. Negative Nonlinear Association

E. Negative Linear association

Answers

B. Positive Linear Association

I think it’s B, a positive linear association

can someone please help me with this math problem and please explain how you got your answer

Answers

Answer:

Step-by-step explanation:

V=4/3[tex]\pi r^{3}[/tex]

V=4/3[tex]\pi[/tex][tex](1)^{3}[/tex]

V= 4.188 or just 4.19

Answer:

Step-by-step explanation:

V=4/3\pi r^{3}πr

V=4/3\piπ (1)^{3}(1)

V= 4.188 or just 4.19

Help me please this due in 8 minutes

Answers

The answer is 281 if it means gives away 7 books but if it meant 7 boxes then 288-252 which then equals 36

The ordered pair, (1,5) indicates the unit rate of books to cost on the graph shown. What does the point on the graph represent?

Answers

The point on the graph represents that 2 books cost $10.

create a one-step inequality that has solution x greater than 5

Answers

Answer:

y < x and y > 0x + 10

Step-by-step explanation:

y < x and y > 0x + 10

I checked it on Desmos graphing calculator

Answer:

x + 1 > 6

Explanation:

⇒ x + 1 > 6

- 1 > -1

⇒ x > 5

Hope this helps!

I need help! Tysm in advance. Giving 10 points for this

Answers

235 I’m pretty sure .

Directions: Study the thermometers and answer these questions.

1. Write in the temperature from both systems.

Answers

Answer:

1. F:32 C:0

2. F:212 C:100

3. F:70 C:30

4. F: 97 C: 36.5

Step-by-step explanation:

I can not see the thermometer

What is the mean of these numbers :
6,7,7,8,8,4,7,6,4,6,8,7

Answers

Answer:6.5

Step-by-step explanation:

It is 6.5 because 6+7+7+8+8+4+7+6+4+6+8+7=78 and because their is 12 numbers than 78/12=6.5

The median is 7
Organize them smallest to largest and find the middle

Higher Order Thinking A customer at a clothing store is buying a pair of pants and a shirt. The customer can choose between a sale that offers a discount on pants, or a coupon for a discount on the entire purchase. Let n represent the original price of the pants and s represent the price of the shirt. a. Write two expressions that represent the "15% off sale on all pants" option. b. Write two expressions that represent the "10% off her entire purchase" option. c. If the original cost of the pants is $25 and the shirt is $10, which option should the customer choose? Explain

Answers

Answer:

do you still need an answer?

Step-by-step explanation:

Please answer! Multiple choice accepted

Answers

B is an answer for sure. I seen that it says multiple answers accepted but not necessary?

The answer is b :)) hope this helps

The equation 24x2+25x−47 ax−2 =−8x−3− 53 ax−2 is true for all values of x≠ 2 a , where a is a constant. What is the value of a?
A) -16
B) -3
C) 3
D) 16

Answers

I swear if it’s wrong I’m sorry ok but it’s 3 for me

please help me. the answers are: A. 47 1/4 ft^3
B. 94 1/2 ft^3
C. 189 ft^3
D. 378 ft^3

Answers

Answer:

C. 189 ft^3

Step-by-step explanation:

hope this helps

The answer is c 189ft^3

Please help and give the correct answer. I will give Brainliest! Using the image below, how many ants are in the ant farm? REMEMBER: This is a balanced scale. Use that information to help you solve for what is in the ant farm ONLY.
A - 20
B - 10 (I tried this and it's incorrect.)
C - 25
D - 30
E - 15
F - 35
G - 40

Answers

Answer:

Step-by-step explanation

Answer: 35

Step-by-step explanation:

A map has a scale of 1: 500 000.
If the distance from A to B on the map is 7 cm, what is the actual distance be on the ground, in kilometers?

Answers

Answer:

350km

Step-by-step explanation:

If a map has a scale of 1: 500000, then 1 cm on the map is 500000 cm

So 7 cm on the map is 35000000 cm = 350 km

Answer: 350km

Explanation:

1cm on map = 500000cm on ground
1cm on map = 50km

Then 7cm = 350km

please help me with this

Answers

the volume is 113.1 i think

PLEASE HELP ME!!! THIS IS TIMED!!!! PLEASE HELP ME!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

if its wrong im so sorry

I’m almost certain it is 2%

Tell me everything I need to know and please work out the problems

Answers

1. when r = 0,
the expression becomes (5(0)+ 1/5)^2
= (0+1/5)^2
= 1/5^2
=1/25

2. divide the number of people by 80
saturday: 1210/80
= 15.125
= 15 as you can’t have 0.125 gift cards
sunday: 1814/80
= 22.675
= 22 - same logic as saturday

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