Answer:
0.48 of the room per hour
Step-by-step explanation:
your welcome
Suppose that y is directly proportional to x, and y = −16 when x = −2. What is the constant of proportionality?
A) −8
B) −
1
8
C) 1
8
D) 8
Answer:
In the given expression the constant of proportionality is k = 8.
Step-by-step explanation:
The quantity P is said to be directly proportional to Q if they vary in proportion to each other.
Here, P ∝ Q ⇔ P = kQ : k = Proportionality Constant
Now, here given y ∝ x and x = -2, y = -16
Now, y ∝ x ⇒ y = kxor, (-16) = k (-2) or, k = 16/2 = 8 ⇒ k = 8So, for k = 8, y ∝ x
Hence, in the given expression the constant of proportionality is k = 8.
Reflection/Math please help
Answer:
Step-by-step explanation:
A' = (-4, 1)
B' = (-7, 2)
C' = (-2, 8)
D' = (-2, 3)
1. At a temperature of 22oC, a liquid that has a volume of 5 mL. The liquid also has a mass of 3 grams. What is the density of this liquid?
.6 g/mL
1.67 g/mL
15 g/mL
Answer:
The first option.
Step-by-step explanation:
Use the density formula: p = m/v
M = mass(3); B = volume(5)
3/5 = .6
Hope this helps! Have a nice day!
what is 11/15 +[-7/12 = ?
Answer: 3/20
Step-by-step explanation:
Which group of numbers is listed from least to greatest?
A. 5, 3, 2, -6, -8
B. -7, -4, -2, 1, 5
C. -2, 3, -4, 5, -7
D. -2, -3, -5, 0, 4
Answer:
The answer should be B
Step-by-step explanation:
Identify the pattern rule for this sequence: 2, 8, 7, 13, 12, 18, 17…
multiply by 4, divide by 1
add 6, subtract 1
add 5, subtract 1
multiply by 4, subtract 1
Please help me answer this question.
PLEASE ANSWER! I WILL GIVE 80+ POINTS, BRAINLIEST, A THANKS, 5 STARS, AND A FOLLOW IF YOU ANSWER ALL OF THESE (P.S they all have to do with direct variation):
#1) If y varies directly with x, write an equation for the direct variation. Then find each value. If y = –4 when x = 10, find y when x = 5
#2) If y varies directly with x, write an equation for the direct variation. Then find each value. If y = 12 when x = –15, find y when x = 2
#3) If y varies directly with x, write an equation for the direct variation. Then find each value. Find x when y = 18, if y = 9 when x = 8.
Answer:
Step-by-step explanation:
1: -2?
2: 17?
3: 16?
Karen earns $5 by delivering newspapers each week. She saves $3 and she spends the rest. How many weeks will it take her to save enough money to buy a $35 gift card? (Use the table to help you solve the problem; you will need to copy it onto a piece of paper
Answer:
i got 2.5 weeks
Step-by-step explanation:
you subtract 5-3=2 so she saves 2$ every day.So divide 35 to 2 and get 17.5.
then divide 17.5 from 7 days and get 2.5weeks
I THINK!
All of last year’s car models were marked down 40%. Tracy wants to buy a car on sale for $18,000. What was the retail price of the car?
Answer:
25,200.
25,200 is the retail price of the car. 18000
+ (40% = 7200)
equals to 25,200.
solve the proportion. where necessary, round to the nearest hundredth. 8/2 = x+3/4
Answer:
x = 13
Step-by-step explanation:
8/2 = (x + 3)/4
~Simplify
4 = (x + 3)/4
~Multiply 4 to both sides
16 = x + 3
~Subtract 3 to both sides
13 = x
Best of Luck!
Solve the following expression: (36 + 14) ÷ 10 . Show all the steps taken. *
Answer:
(36 + 14) ÷ 10 = 5
Step-by-step explanation:
Using PEMDAS we have to simplify the parentheses first. 36 + 14 is 50. Next we have to divide. 50 ÷ 10 is 5. The answer to (36 + 14) ÷ 10 = 5.
If this helped I would appreciate it if you marked me brainliest. Thank you and have a nice day!
Answer:
First finish the brackets
36+14=40
40/10
4
Step-by-step explanation:
I hope this is all the step you need
The product of a number and -3, increased by 8 is 20. I need help. >:
Answer:
-4
Step-by-step explanation:
-3(x)+8=20
-3x=12
x=-4
Which is the best estimate for 6,193 ÷ 48 using compatible numbers.
A. 100
B. 120
C. 150
D. 160
The best estimate for 6,193 ÷ 48 using compatible numbers is 120. Therefore, option B is the correct answer.
Given that, 6,193 ÷ 48.
What is the division?The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items.
Here, the number 6,193 can be rounded off to 6000 and the number 48 can be rounded off to 50.
So, 6,193 ÷ 48
= 6000 ÷ 50
= 120
The best estimate for 6,193 ÷ 48 using compatible numbers is 120. Therefore, option B is the correct answer.
To learn more about the division visit:
https://brainly.com/question/1575906.
#SPJ2
Michael decided to make French toast. He finds a recipe that calls for the following ingredients:
FRENCH TOAST
12 slices of bread
4 eggs
1 cup of milk
1 teaspoon of cinnamon
Michael makes a single recipe and shares the food equally among himself AND his four family members. How many slices of French toast does each person receive?
A.Each person gets 2 2/5 slices of French toast.
B.Each person gets 1/2 slice of French toast.
C.Each person gets 2 slices of French toast.
D.Each person gets 12 slices of French toast.
E.Each person gets 5 slices of French toast.
F.Each person gets 5/2 slices of French toast.
Answer:
The answer is "A" because you would have everyone get 2 pieces and you would give everyone 2/5 which would evenly divide 12 pieces
Im pretty sure it is A! But I still could be wrong. PLease forgive me if im wrong but I tried my hardest. If Im wrong pls correct.
(if correct could I maybe have brainliest? Tysm!)
Thats all. LOL cya
btw don't cheat anymore
WINK WINK WINK
lol
Pls help me! Show your work!
Setting 7 / 3 equal to which ratio would result in a valid proportion? a.9 / 49 b.18 / 42 c.42 / 18 d.49 / 9
The dog knows it should not be traveling at this time, but follows his owner. Would this be an example of an internal or external conflict? Why?
Answer:
internal conflict
Step-by-step explanation:
bc the dog cares about his owner but he also knows he shouldn't b traveling rn so its a problem within him. Hope this helps
what is 2x + 20 ≤ 50
Answer:
x ≤ 15
Step-by-step explanation:
2x + 20 - 20 ≤ 50 -20
2x ≤ 30
2x/2 ≤ 30/2
x ≤ 15
answer this please please pls ya
Answer:
A
Step-by-step explanation:
took the test
BRAINLIEST PLZ HELP!!!! Which inequality is represented by this graph?
Answer:
I think its the last one????
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
If the circle is filled in that means that it is equal to (the line under the inequality). And the inequality sign is facing the same direction as the graph (which in this case is right) so that means that the inequality sign in facing right!
Hope this helps!
Please help me understand how to work out these types of equations?
My teacher isn't doing a very good job at it right now.
Answer:
48
Step-by-step explanation:
2.4 (12 / 1/4)
First you do distributive property (multiplying the number in front of the parenthesis).
28.8 / 0.6
Then you just do the math
48
It's pretty easy, but it just depends on how somebody explains it.
pls help i only have 2 minutes!!!!!!!!!!!!!!
Answer:
40 + ( -63) is less
Step-by-step explanation:
.... .....
Answer:
(-25)+12
=13
40+(-63)
=23
HELP ME I DONT UNDERSTAND
Answer:
B. He should focus on females because the ratio of females to males is 5:2.
Step-by-step explanation:
By looking at the graph, you can see that there are 25 females and 10 males. The ratio for this is 25:10, but we can simplify by dividing both sides by 5! 25/5=5, and 10/5=2, so the simplified ratio of 25:10 is 5:2. If you look at all of the answer choices, you really don't have to look at the words a lot; there's only one choice that includes the ratio 5:2. That choice is B, so B is the answer!
Hope this helps you out!! Have an amazing day o(*^▽^*)o
Nicholas has some cans at home to donate to the soup kitchen, but decides to start a can drive at his school to see if others will help. The equation representing this is y = 235x + 15, where x is the number of days, and y is the number of cans collected. Which statements are true based on the equation given. Select all that apply.
A Nicholas had 235 cans at home.
B The school collected 235 cans a day.
C Nicholas had 15 cans at home.
D The school collected 15 cans daily.
Answer:
It is A and D Right?
Step-by-step explanation:
plz help I need this now
Answer: 1 30.0
3 20
2 8
Step-by-step explanation:
I NEED IT ASAP PLZ AND I NEED THEM ALL ANSWER PLZ
Use the table to answer the questions.
X Y Point
-8 8 L
0 4 M
4 2 N
8 0 P
Calculate the slope between point L and point M using the change in y and the change in x. Show all work in the formula. slope =m =
2) Calculate the slope between point N and point P using the change in y and the change in x. Show all work in the formula. slope =m =
3) Write the letter and ordered pair of the y-intercept.
Answer:
See below for answers
Step-by-step explanation:
1) Slope is Rise/Run=(y2-y1)/(x2-x1)=(4-8)/(0-(-8))=(-4/8)=-1/2, therefore m=-1/2
2) Slope is Rise/Run=(y2-y1)/(x2-x1)=(0-2)/(8-4)=-2/4=-1/2, therefore m=-1/2
3) The y-intercept is point M because the y-intercept of a function is where the graph will cross the y-axis which also means the y-value when x=0. Therefore, the y-intercept is point M which is (0,4)
1. M=-1/2
2. M=-1/2
3. The y-intercept is point M which is (0,4)
Eight pipes were turned on to fill the pool in 36 hours. Then, after 12 hours some of the pipes were turned off, and the rest of the pool was filled in 32 hours. How many pipes were turned off?
Please show your work
Answer:
4 pipes (im pretty sure)
-but i hope this was correct and if not i hope it at least helped have a good rest of your day :)
Step-by-step explanation:
because 36 - 32= 34
6 or 7 i would think. hope that helps.
Uhhh pls help. I know that A is not it.
ILL MARK BRAINLIST please answer asap
Answer:
what's the question????
Step-by-step explanation:
Answer:
what do you need help with
Step-by-step explanation: