What is the value of this expression when X=-1 and Y = 2?
4x3y2
Answer:
-16
Step-by-step explanation:
4x3y2
replace variables with numbers
4×-1×2×2
-4×4=
-16
An ice machine uses 3 gallons of water every 9 hours How many gallons of water does it use each hour? How many hours does it
take to use one gallon?
A)gallon per hour, 1 hour
B)gallon per hour; 3 hours
C)3 gallons per hour, 1/9 hour
D) 1/3 gallon per hour
1/3 hour
Answer:
1/3 gallon per hour, and it takes 3 hours to use one gallon
Step-by-step explanation:
Simplify the ratio
3-9
Which simplifies to
1-3
———————————————
What would the simplified equivalent of (3^-3)^2 be?
Answer:
3
-----
2
Step-by-step explanation:
7. After a discount of 30%, you pay $49.00 for a video game. What was the original price of the game?
Answer:
$70.00
Step-by-step explanation:
Percentage of original price paid
= 100% -30%
= 70%
70% of original price ----- $49.00
1% of original price ----- $49.00 ÷70= $0.70
100% of original price ----- $0.70 ×100= $70.00
Taylah buys clothes from a supplier in the USA. The total cost of the clothes is $250 US dollars. Shipping the clothes costs an extra $30 US dollars.On arrival in Canadian customs add an extra 10% GST to the cost of the clothes. Calculate how much Taylah has to pay in total.
If u know the answer plz answer if u don't know the answer,don't answer! -Warning
Solve for x and round your answer to the nearest tenth.
Answer:
I believe it should be 32.9
Step-by-step explanation:
Select ALL expressions that simplify to 2x -1.
a. 8x - 6x - 3 - 2
b. 9 -7x + 3x -8
c. x + x - 1
d. 3x + 2 -x - 2
e. -5 + 10x - 8x + 4
Answer:
A,C, and E
Step-by-step explanation:
a. 8x - 6x - 3 - 2
=2x-1 YES
b. 9 -7x + 3x -8
=9-8-7x+3x NO
c. x + x - 1
2x-1 YES
d. 3x + 2 -x - 2
=3x-x+2-2
2x+0 NO
e. -5 + 10x - 8x + 4
=10x-8x-5+4
=2x-1 YES
Hope it helps!
hii please help i’ll give brainliest
Is 7/8 bigger than one or greater or equal to one
Answer:
7/8 is less than 1, sure it is close to one but not 1.
Angus Cut His Neighbors' Lawns For The Summer. By The End, He Had $325 In His Lawn-cutting Bank Account And He Paid A Total $75 For Gas. He Earned $10 For Ever Lawn He Mowed. How Many Lawns Did He Buy? A. N = 400 x 10 b n 250 x 10 c. N = 400 / 10 d. N = 250 / 10
Answer:
C. N = 400 / 10
Step-by-step explanation:
Lawn-cutting Bank Account = $325
Amount paid for gas = $75
Total amount earned = Lawn-cutting Bank Account + Amount paid for gas
= $325 + $75
= $400
Amount earned per every lawn he mowed = $10
How Many Lawns Did He mow?
Let N = number of lawns he mowed
N = Total amount earned / Amount earned per every lawn he mowed
N = 400 / 10
N = 40 lawns
This is science btw(i couldn't find the category so i put a popular category lol). Offering brainliest!!!
Answer:
1. Abiotic is the third answer
2. Biotic is the first answer
3. flora is the second answer
4. fauna us correct
Step-by-step explanation:
If
PLEASE HELP ME, THIS IS DUE TODAY!!!
Answer:
i think im late...
Step-by-step explanation:
What is the name ?
I need help please
Answer:
chord
Step-by-step explanation:
0.8 k - 20 = -60
what does ‘k’ equal?
Answer:
K = -50
Step-by-step explanation:
0.8(-50) - 20 = -60, because 0.8(-50) = -40, and when you subtract a negative you would "add" those numbers. So it would be 40 + 20 = 60, which would make it -60.
Answer:
k equals -50Step-by-step explanation:
0.8 k - 20 = -60
0.8k = -60 + 20
0.8k = -0
k = [tex]\frac{-40}{0.8}[/tex]
k = -50
A principal of a school with 484 students collected information about how many of the students wear glasses
Answer:
students
Step-by-step explanation:
you're missing a part?
The total amount of money saved in
dollars by Jerod and Janine is below,
where w represents the number of
weeks they have been saving.
Jerod: 64 + 8W
Janine: 92 +6w
How many weeks does it take for Jerod
and Janine to have the same amount
can you solve this !!
[tex] \sqrt{62 \times 31 \times 2} [/tex]
Answer:
62
Step-by-step explanation:
Step-by-step explanation:
hope it is helpful to you
my question is BELOW so answer is pls due today
Suppose you know that the prices paid for cars are normally distributed with a MEAN or $17,000 and a STANDARD DEVIATION of $500. Use the EMPIRICAL RULE to find the percentage of buyers who paid
Complete question :
Suppose you know that the prices paid for cars are normally distributed with a MEAN or $17,000 and a STANDARD DEVIATION of $500. Use the EMPIRICAL RULE to find the percentage of buyers who paid between 15500 and 17000
Answer:
49.85%
Step-by-step explanation:
Mean = 17000
Standard deviation = 500
Obtain the Z score, which is the number of standard deviations from the mean :
((17000 - 17000) / 500) = 0
((15500 - 17000) / 500) = - 3
-3 to 3 = (3 standard deviations)
However,
The value here is (-3 to 0) ; which is only 3 standard deviations to the left.
3 standard deviation = 99.7% (empirical rule)
Since it is only (-3 to 0) ; which is only 3 standard deviations to the left. ; the percentage will be halved
99.7% / 2 = 49.85%
Hence, percentage of buyers who paid between 15500 and 17000 is 49.85%
Three students, Brayden, Adrian, and Aubrey, line up one behind the other. How many different ways can they stand in line?
ANSWER NUMBER 2 PLEASE
1. The following test scores were collected from a math class: 84, 72, 78, 80, 75, 88, 43, 90, 75. Determine the outlier.
The outlier is 43.
2. Based on the data set in #1, which measure would better describe the test scores?
A. Mean
B. Median
Answer:
B: Median
Step-by-step explanation:
If there is an outlier then the median is better.
If there isn't an outlier then the mean is better.
find the value of x and find the value of the angle with a star in it
Answer:
x = 25
angle measure = 55
Step-by-step explanation:
The two angles are supplementary
2x+5+5x = 180
7x+5 = 180 subtract 5 from both sides
7x = 175 divide both sides by 7
x = 25 to find the angle with the star replace x with 25
25*2 + 5 = 55
The scale for a model is built to represent a real-life skyscraper. If a measurement of 4 cm on the model of the building is equivalent to 36 meters in real-life, what is the scale factor of the model?
Write a unit rate that compares 48 kids to 6 teams.
(Answer in the form of a:b)
a : b = 8 : 1
Answer:
kids : teams
a : b
48 : 6
( 48 : 6 ) ÷6
8 : 1
Find the unit rate.if 5 pounds of potatoes cost $8.60, how much does one pound of potatoes cost.
Answer:
1.72
Step-by-step explanation:
8.60= 5 Pounds
So you divide by 5
8.60/5
1.75
Solve the equation below for m.
3
Answer: 30
Step-by-step explanation:
3(0.3m + 6) + m =75
(0.3 x 3 = 0.9)
(6 x 3 = 18)
0.9m + 18 + m = 75
0.9m + m + 18 = 75
(m=1)
1.9m + 18 = 75
1.9m = 75 - 18
1.9m = 57
m = 57÷ 1.9
m = 30
Name a pair of vertical angles
Answer:
Angle 2 and Angle 4 are vertical angles
The Hiking Club plans to go camping in a State park where the
probability of rain on any given day is 30%. What is the probability
that it will rain on exactly one of the five days they are there? Round
your answer to the nearest thousandth.
Answer:
0.013
Step-by-step explanation:
Use binomial probability:
P = nCr pʳ (1−p)ⁿ⁻ʳ
where n is the number of trials,
r is the number of successes,
and p is the probability of success.
Given n = 6, p = 0.69, and r = 0 or 1:
P = ₆C₀ (0.69)⁰ (1−0.69)⁶⁻⁰ + ₆C₁ (0.69)¹ (1−0.69)⁶⁻¹
P = (1) (1) (0.31)⁶ + (6) (0.69) (0.31)⁵
P = 0.013
Given the following exponential function, identify whether the change represents
growth or decay, and determine the percentage rate of increase or decrease.
y = 190(0.93)
Pablo made a dot plot and histogram to show how many times last month each student in a class
played sports. However, the histogram is incorrect.
Times Played Sports Last Month
10
Times Played Sports Last Month
Number of students
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Number of times
5-9
10-14 15-19
Number of times
Answer the questions to show how Pablo can fix the histogram to match the dot plot.
Answer:
D
Step-by-step explanation:
Because I know
Answer:
1. The bar interval is correct, the height does not need to be changed.
2. The bar interval is not correct, the height has to change higher by 1.
3. The bar interval is not correct, the height has to change lower by 1.
4. The bar interval is correct, the height does not need to be changed.
I hope this helped