Answer:
7*-4= -28 +4-12/2
-24-6
=-30
Step-by-step explanation:
PLEASE HELP ITS DUE SOON
How can you subtract mixed numbers when the fraction in the first mixed numbers is less than the fraction in the second mixed number?
When subtracting mixed numbers, if the fraction in the second mixed number is larger than the fraction in the first mixed number, rewrite the first mixed number by regrouping one whole as a fraction. Alternatively, rewrite all fractions as improper fractions and then subtract.
61. The 2003 Statistical Abstract of the United States reported the percentage of people 18 years of age and older who smoke. Suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the proportion who smoke of .30. a. How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of .02
Answer: Required minimum sample size = 2017
Step-by-step explanation:
Formula : Sample size(n) for population proportion(p):
[tex]n= p(1-p)(\frac{Z^c}{E})^2[/tex] , where E = Margin of error
If p = proportion of smokers
Given: p =0.30 and E=0.02
[tex]z^c[/tex] for 95% confidence level = 1.96
So,
[tex]n=0.30(1-0.30)(\dfrac{1.96}{0.02})^2\\\=0.30(0.70)(98)^2\\\\=2016.84\approx2017[/tex]
Hence, required minimum sample size = 2017
A company places a seven-digit serial number on each part that is made. Each digit of the serial number can be any number from 0 through 9. Digits can be repeated in the serial number. How many different serial numbers are possible?
Answer: 10,000,000 different numbers are possible.
Step-by-step explanation:
Given: Serial number is of 7 digits.
Choices for digits = 10 (0 to 9)
If digits can be repeated, then by Fundamental principle of counting,
The different serial numbers are possible = [tex]10^7[/tex]
= 10,000,000
Hence, the different serial numbers are possible = 10,000,000
Justin’s mom just had a baby that weigh 8 pounds. Justin insisted that the baby weighed 128 ounces. Is Justin correct or incorrect? Justify your answer.
PPPPPLLLLLLLLLLLLLEEEEEEEEEEEEESSSSSSSSSEEEEEEEEEEEEEEEEE HELP ASAP PPPPLLLLLLEEEEEEEEEEEEEEEEEEEEEEEEEEEESSSSSWEEEEEEEEeeeeeeEEEE
Answer:
Yes, Justin is correct.
Step-by-step explanation:
1 pound equals 16 ounces, so if you multiply 16×8, it equals 128 ounces.
Answer:
read explanation
Step-by-step explanation:
convert pounds to ounces
using the measurement system, for every 16 ounces there is 1 pound
the baby weighs 8 pounds and justin says its equal to 128 ounces.
128 divided by 16 is indeed 8 so therefore justin is right, mom
geesh listen to your kids more
plzzzz help giving 30 points
Answer:
why is there only 5 points?
Step-by-step explanation:
Zachary purchased a computer for $1,500 on a payment plan. Six months after he purchased the computer, his balance was $600. Eight months after he purchased
the computer, his balance was $300. What is an equation that models the balance y after x months?
The equation models the balance y after x months
9514 1404 393
Answer:
y = 1500 -150x
Step-by-step explanation:
Apparently, we're to assume that the balance is linear function of the number of months. We are given 3 points:
(0, 1500), (6, 600), (8, 300)
Any two of these can be used to write the equation of the line using the 2-point form:
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
y = (600 -1500)/(6 -0)(x -0) +1500
y = -900/6x +1500
y = 1500 -150x . . . models the balance after x months
The LCM (12, 15, 20, k) = 420. What is the least possible value of k?
The least possible value of k is 7.
The given numbers;
12, 15, 20, k
LCM of 12, 15, 20, k = 420
The prime factor of each of the given is calculated as;
12 = 2² x 3
15 = 3 x 5
20 = 2² x 5
The LCM = 2² x 3 x 5 = 60
The least possible value of k is calculated as;
60k = 420
[tex]k = \frac{420}{60} \\\\k = 7[/tex]
Thus, the least possible value of k is 7.
Learn more here: https://brainly.com/question/17894698
Can someone help me please
Answer:
-50
Step-by-step explanation:
Since the rate is -2 degrees per minute and you need to know what the temperature will be after 25 minutes, simply multiply the two numbers:
= -2 x 25
= -50
It will reach a temperature of -50 degrees after 25 minutes.
Which describes the correlation shown in the scatterplot?
Answer:
There is no positive or negative correlation
Step-by-step explanation:
the x-values are increasing but the y-values are staying the same so if you drew a line through correlation... the slope would be around 0
I dont understand this
Can you guys please help me out
Answer:
18
Step-by-step explanation:
xy = x times y
in our case, it is 6 times 3
so 18
What is the distance between the points (4,
(4, 7) and (4, – 5)
O O units
O 2 units
o 4 units
O 12 units
Plzzzzz nowwwwwww
Answer:
2 units I used the distance formula
Alejandro bought $3.50 worth of pencils and erasers at the school store. Pencils cost $0.50 apiece, and erasers cost
$0.75 apiece. Which equation written in standard form represents the number of pencils, p, and the number of erasers,
e, that Alejandro bought?
O 0.75e = 3.50 -0.50p
O 0.50p + 0.75e = 3.50
O 3e = 14 -2p
O 2p + 3e = 14
guys can you help me
The distance Train A travels is represented by d = 69t, where d is the distance in kilometers and t is the time in hours. The distance Train B travels at various times is shown in the table. What is the unit rate of each train? Which train is going faster?
If d is distance measured in km and t is time measured in hours, then d = 69t tells you that train A is moving at a rate of 69 km/h.
Why? If t = 1, then d is the distance it moves in 1 hour, and that's precisely the unit rate. It's the rate at which the distance changes when 1 unit of time passes.
For train B, use the info in the given table. In 1 hour (between hours 4 and 5), the train covers a distance of 375 km - 300 km = 75 km. So it's moving at a rate of 75 km/h.
It should be clear which train is faster.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]d(A) = 69t[/tex]
[tex]d(B) = 75t[/tex]
The unit rate is the coefficient of t which is the slope of the line because the trains distance traveled equation are linear.
Thus :
Train A's unit rate is 69 km per hour.
And
Train B's unit rate is 75 km per hour.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Train B is going faster because its unit rate is greater than Train A's unit rate .
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
NEED HELP ON THIS QUESTION VERY EASY
Answer: B.
Step-by-step explanation: I UNDERSTAND HOW FRUSTRATING IT IS TO PUT AN ANSWER AND NO ONE ANSWERS IT, I DO, SO ALL I ASK IS FOR YOU TO GIVE ME BRAINLIEST. THANK YOU.
Answer:
b ive never had a brainliest ever in my life so can i have one
Step-by-step explanation:
pls GIVE ME BRAINLIEST not trynna demand
Please put this in your own words Thank you and happy Halloween
Answer:
Please read explanation :)
Step-by-step explanation:
You can find the constant of proportionality of the ratio of the price to the number of bouquets from the table by dividing them. For example, it you divide 9 by 3 or 18 by 6, you get 3. Therefore, you know that every bouquet is 3 dollars. :) Hope this helps
(But please don't copy, that would be plagiarizing. Maybe you can put this in your own words? Thx <3)
6th grade math I mark as brainliest
Answer:
the answer is d :)
Step-by-step explanation:
Explain how to round to the hundredths 382.992
what is an equation in point-slope form of the line that passes through the point (4,-1) and has a slope of 6
Answer:
y = 6x + (-1) or y = 6x - 1
Step-by-step explanation:
y = mx + b
M = Slope = 6
B = y-intercept = -1
The amount of force needed to keep a 0.5 kg baseball moving at a constant speed of 4 m/s on frictionless ice is
Answer: 0 N
Step-by-step explanation:
What is the product of all the even integers from -6 to 8?
Seven more than a number is less than or equal to -18
Answer:
7+x<=-18
subtract 7 from both sides
x<=-25
Step-by-step explanation:
The equation is 7+x<=-18 and the value of x = -25.
Given that,
Seven more than a number is less than or equal to -18Based on the above information, the calculation is as follows:
7+x<=-18
x = -25
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1. How much would the following items cost if they were 50% off?
TV: $349.95
shoes: $55.00
boat: $9,499.99
enter the measure of
Answer: I believe the answer is 45°
Step-by-step explanation: Hope it helps :)
Answer:
Step-by-step explanation:
sin M=8/22
[tex]\angle ~M=sin ^{-1}(\frac{8}{22}) \approx~21.32^\circ[/tex]
The Pythagorean theorem is used to find the measurement of an angle.
True
False
Answer: False
You are welcome!
Use the information below to complete the steps of this Sample Work assignment by hand.
A high school club is conducting a cupcake sale at a local fair to raise money for a trip. The club members
are baking a total of 444 cupcakes. Each cupcake will sell for $3.00. The display tables cost $75.00 to rent.
Part A (2 points)
If n is the number of cupcakes sold and p is the profit earned, which is the independent variable and which is
the dependent variable? Explain.
Independent variable:
Dependent variable:
Explain:
Part B (2 points)
Write an algebraic equation that represents the profit.
is the relationship between n and p a function? Explain.
Answer:
cookie
Step-by-step explanation:
Is there a calculator for long-division that'll show you how the problem is done (ie breaking it down) instead of just answering?
Answer:
A website that sometimes shows breaking down long division is m a t h w a y
Step-by-step explanation:
Ariane borrows $200 on a 6−year loan. She is charged 5% simple interest per year. How much interest is she charged for 6 years? What is the total amount she has to pay back?
After 6 years, Ariane is charged $
in interest. She pays a total amount of $
.
Answer:
she is charged 80 in interest for 4 years, the total she has to pay back is 480
Step-by-step explanation:
You don’t have to explain just give me the answers for these few questions please asap
Answer:
lol do u r own work this is for help no the answers
Step-by-step explanation:
Answer:
same thing you did to me bud
Answer: wheidofnnndbxkdiwijsng Step-by-step explanation: Sorry I needed points
