Answer:
Discount = 20%
Original price = $60
Discounted price = $48
Step-by-step explanation:
To find the amount of the discount, we take the original price and multiply it by the rate of the discount. In this case, we would take $60 and multiply it by 0.20 to get $12. This is the amount of the discount.
Maribeth has 131 ounces of sandwich meat. How many sandwiches can she make if she puts 2.5 ounces of meat on each sandwich? She can make _____ sandwiches.
Answer:
52
Step-by-step explanation:
131 ounces/2.5 ounces=52.4
=52 sandwich
8.35 A shopper buys a $100 coat on sale for 20% off. An additional $5 is taken off the sale price by using a discount coupon. A sales tax of 8% is paid on the final selling price. What is the total amount the shopper pays for the coat?
Answer:
Given:
A shopper buys a $100 coat on sale for 20% off. An additional $5 is taken off the sale price by using a discount coupon. A sales tax of 8% is paid on the final selling price.To find:
The total amount the shopper pays for the coat.The formula used to calculate percentage is:(value/total value)*100%.
Step-by-step explanation:
Step 1 of 2
After the 20% sale, the coat costs
100*0.8 = 80 dollars.
Then 5 dollars are taken off for a cost of
80-5 = 75
Step 2 of 2
Now adding on the sales tax,
the final amount is 75(0.8) = 81 dollars
24.8 to 13.4 as a fraction in lowest terms
Answer:
124/67Step-by-step explanation:
24.8 to 13.4 as a fraction in lowest terms
we transform into integers
24.8 * 10 = 248
13.4 * 10 = 134
we form the fraction
248/134
It is simplified by the greatest common divisor of 248 and 134, i.e. with 2.
124/67
Christina wants to buy some miniature goldfish. She reads that a 9-gallon aquarium is the
right size for 3 miniature goldfish. The graph represents this relationship.
Which points show equivalent ratios that would also be on the graph? Select all that apply.
A. (6,18)
B. (6,12)
C. (4,10)
D. (1,3)
Answer:
A & D
Step-by-step explanation:
If you can fit 3 fish in a 9 gallon tank, that means as a point on a line, that would be at (3, 9).
If you write this as a fraction it's 3/9. Simplifying that, you get 1/3. That means 1 fish needs 3 gallons. If you make hat a point on the line, it's (1,3).
Another equivalent fraction would be 6/18. If you multiply the numerator and denominator by 2, 3/9 becomes 6/18.
B & C are not equivalent fractions.
jill bikes for 1/5 of an hour at 16 mph and then walks for 3/7 hour at 5 miles per hour how much farther did she bike then walk
Ans: 1.1 miles more
Speed = distance/time
Time is 1/5 of an hour
1/5 of 1hr = 1/5 or 0.2 hrs
Speed = 16 mph
So, we're after distance.
Distance = speed x time
= 16mph x 0.2
= 3.2 miles
Walks for 3/7 hour at 5 miles per hour :
Time & speed given, distance is what we're after.
(3/7 of 1hr is 3/7)
Distance = speed x time
= 5mph x 3/7
= 15/7 miles or 2.14285...miles
So, distance is about 2.1 miles to 1 d.p
Thus, 3.2 - 2.142... (the full ans) = 1.057... miles
Well, he biked 1.06 miles or 1.1 miles (depending on how you want to round it) more than walking.
Hope this helps!
Help me pleaaseee!!!!!!! I'll give you brainliest if theres another answer on this.
Answer:
Please see attached image
Step-by-step explanation:
help help help, please
I'm having problems with these 3 questions now
I really need your help! Tysm!!
Answer:
36. m^7
37. x^3 y
38. 6v^5
Step-by-step explanation:
Divide the exponents by the number in the radical sign,
so, If no number is given then divide exponents by 2 eg. question 38
Explanation36. 7√m^49 means m^(49/7) = m^7
37. 3√x^9y^3 means x^(9/3) y^(3/3) = x^3 y
38. √36v^10 means (√36) v^(10/2) = 6v^5 (√36 = 6)
please help asap!!! theres multiple answers
Answer: 3rd, 4th, and 5th are correct.
Step-by-step explanation:
We know that the equation 6(t+2) can be simplified to 6*t+6*2, also 6t+12. This causes any statements saying a variable with a certain value applies to one side also applies to the other.
Answer:
- The value of both expressions when t = 3 is 30
- The value of both expressions when t = 7 is 54
- The expressions are equivalent
Step-by-step explanation:
Plug in each value of t into the expressions:
6t + 12, when t = 3 equals 30
6t + 12, when t = 7 equals 54
6(t + 2), when t = 3 equals 30
6(t + 2), when t = 7 equals 54
We have the same answers for both expressions, meaning they are equivalent.
1. WHAT IF? Each value in the dot plot for Candidate A increases by 30 seconds. How does this affect the answers in Example 1? Explain. You do not need to have all the data from two populations to make comparisons. You can use random samples to make comparisons.
Answer:
https://www.khanacademy.org/math/ap-statistics/sampling-distribution-ap/sampling-distribution-proportion/a/sampling-distribution-sample-proportion-example
Step-by-step explanation:
Click there and it will tell you
1. A school athletic director asked each athletic team member to name his or her favorite professional sports team. The results are below:
• D.C. United: 3
• Florida Panthers: 8
• Jacksonville Jaguars: 26
• Jacksonville Sharks: 7
• Miami Dolphins: 22
• Miami Heat: 15
• Miami Marlins: 20
• Minnesota Lynx: 4
• New York Knicks: 5
• Orlando Magic: 18
• Tampa Bay Buccaneers: 1 7
• Tampa Bay Lightning: 12
• Tampa Bay Rays: 28
• Other: 6 One athletic team member is picked at random. What is the likelihood that this team member's favorite professional sports team is not located in Florida? A. certain B. likely, but not certain
C. unlikely, but not impossible
D. impossible
Answer:
B i believe
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Joe gained 5 pounds. John gained 14 pounds. Jordan lost 20 pounds. Josh lost 11 pounds. Who had the biggest change in weight? A. Jordan B. Joe C. John D. Josh
Answer:I think Jordan is this a trick question
Step-by-step explanation:
HELP? - MEAN, MEDIAN, AND MODE!!
The Bryants are moving to a new town and want to know about how much it will cost them to buy a house. The prices of five homes sold last week in the town were $125,500, $130,000, $132,500, $135,000, and $350,000. Which of these prices best represents the typical price of a home in this town?
A.the mode of the prices
B.the median price
C.the mean price
D.the average of the lowest and highest prices
i really think its B. but when i searched up the question, people said it was D.?
3/4x+0.25(x-6)+28.4
I can't figure it out
[tex]\boldsymbol{\dfrac{3}{4}x+0.25(x-6)+28.4 }[/tex]
Use the distributive property to multiply 0.25 by x−6.
[tex]\boldsymbol{\dfrac{3}{4}x+0.25x-1.5+28.4 }[/tex]
combine [tex]\bf{\frac{3}{4}x }[/tex] and 0.25x to get x.
[tex]\boldsymbol{x-1.5+28.4}[/tex]
Add −1.5 and 28.4 to get 26.9.
[tex]\boxed{\boldsymbol{x+26.9}} \ \ \to \ \ \bf{Answer}[/tex]
{ Pisces04 }Write the percent as a decimal.
13. 47.63%
Answer:
0.4763
Step-by-step explanation:
in order to write percents as decimals, you always move the decimal to places to the left.
Please help!!! I’m not sure how to do this at all. Can someone please help me solve this with an explanation step by step? I’m having so much trouble my brain is literally gonna explode.
Answer:
Step-by-step explanation:
The question asks you to dilate the rectangle by a scale factor of 1/3.
KEY TERM:
Dilate by a scale factor: You make a shape bigger or smaller by multiplying by a number.
Here, we are dilating by a scale factor of 1/3. Therefore, to solve the problem, you have to multiply each coordinate by 1/3. Also, we are making the shape smaller because we are multiplying by a fraction.
___
STEP 1: LINE UP ALL THE COORDINATE PAIRS
Point U: (-6,6)
Point R: (-6,-3)
Point T: (9,6)
Point S: (9,-3)
Now the easy part is done.
STEP 2: MULTIPLY BY 1/3
It is very important you know how to do this part because it determines the answer. So when i say "multiply by 1/3" i mean multiply each individual number by 1/3.
I'll explain for point u then do the rest:
Point U was originally: -6,6.
-6 x 1/3= -6/3= -2.
6x1/3= 6/3= 2
The "dilated" point U is: (-2,2). I multiplied each individual coordinate by 1/3, one by one.
Point R was originally: (-6,-3)
-6x1/3= -2
-3x1/3= -3/3= -1
The "dilated" point R is (-2,-1)
Point T was originally: (9,6)
9x1/3= 3
6x1/3= 2
The "dilated" point T is (3,2).
Point S was originally (9,-3).
9x1/3= 3
-3x1/3= -1
The "dilated' point S is (3,-1)
Finally, if you ever get confused about the order of the coordinates, it just stays the same. Like 9,-3 becomes the dilated 9 , dilated -3.
STEP 3: GRAPH THE NEW POINTS
see the screenshot, for reference :)
Answer:
Step-by-step explanation:
you dilate each coordinate by a scale factor of 1/3 , making the shape smaller.
helpp asap!! pls walk me thru as well!! <333
Hello!
The length and width are given.
We know the formula for calculating perimeter :
[tex]\fbox {Perimeter = 2(Length + Width)}[/tex]
Let's solve!
Perimeter = 2(123 + 17k + 24k - 49)Perimeter = 2(41k + 74)[tex]\fbox {Perimeter = 82k + 148}[/tex]∴ The perimeter is 82k + 148.
3 1/2 + (-7) x (2 2/3 + 1 1/2) = ?
Answer: 77/3 or 25 2/3
Step-by-step explanation:
1. Convert mixed numbers into improper fractions:
3 1/2 = 3*2+1/2 = 7/2
2 2/3 = 2*3+2/3 = 8/3
1 1/2 = 1*2+1 = 3/2
2. Calculate within parentheses
Multiply and divide from left to right
Add and subtract from left to right
Answer:
- 53 2/3
Step-by-step explanation:
3 1/2 + (-7) x (2 2/3 + 1 1/2)
= 7/2 - 7 (8/3 + 11/2)
= 7/2 -7 (49/6)
= 7/2 - 343/6
= - 161/3
= - 53 2/3
17. Nils swam a total of 6.48 km in three days. He swam 0.720 km longer on Day 2 than on Day 1. The distance he swam on Day 3 was 3 times the distance he swam on Day 2. How many kilometers did he swim on Day 3?
Answer:
21.6 km
Step-by-step explanation:
distance swam on day 2: 6.48+0.720 = 7.2 km
distance swam on day 3: 7.2*3 = 21.6 km
Please help will mark brainliest 25 pts.
Answer:
1. r = C/2π
2. A = π(C/2π)^2
Step-by-step explanation:
1. C = 2πr^2
C/2π = 2πr/2π
C/2π = r
r = C/2π
2. A = π(C/2π)^2
3. Look at screenshot
Answer:
C^2 = 4πA
Step-by-step explanation:
The first part asks us to isolate r in the equation C = 2πr. We can do that by dividing both sides by C: [tex]r=\frac{C}{2\pi }[/tex]. Note that C stands for the circumference of a circle.
The second step is to plug this value of r into the formula for the area of a circle. We know that the area of a circle is πr^2. We are given π and the exponent, so we just need to plug in [tex]\frac{C}{2\pi }[/tex] and we end up getting [tex]A=\pi (\frac{C}{2\pi })^{2}[/tex]
The third step is to square the term in the parentheses. Whenever we have to square a fraction, all we have to do is square the numerator and the denominator:
[tex](\frac{C}{2\pi })^2=\frac{C^2}{(2\pi )^2}=\frac{C^2}{2^2\pi ^2}[/tex]
In other words,
[tex]A=\pi *\frac{C^2}{2^2\pi ^2}[/tex]
For the fourth step, 2^2 can be evaluated to get 4. We end up getting the following if we do this:
[tex]A=\frac{\pi}{4 } *\frac{C^2}{\pi^2}[/tex]
For the fifth step, we can simplify because the π in the numerator of the first fraction and the π^2 in the denominator of the second fraction cancel (π^2 / π leaves π in the denominator and a 1 in the numerator). If we perform this cancellation, we get the following fraction:
[tex]A=\frac{C^2}{4*\pi}[/tex]
For the final step, we can isolate C^2 by multiply both sides by 4π. Then, we get that C^2 = 4πA
In other words, the circumference of the circle squared is equal to 4π times the area of the circle
4. IN YOUR OWN WORDS How can you order numbers that are written as fractions, decimals, and percents? Give an example with your answer.
Answer:
Step-by-step explanation:I would make them make all of them into a decimal or fraction that's how I do it like this 5/2 .45 27.5%
make them into a decimal this time because it looks easy so 5/2 into a decimal will be 2.5. and then 0.45 27.5% into a decimal will be will be 0.275
boom order it 2.5, 0.45, 0.275
Circle the correct option: A, B, C, or D.
5. A chemist mixes 25 ml of dye with 1.5 L of water to make a test solution. How many liters of the test solution are there in 98 such bottles? Round your answer to the nearest whole number.
A 140.5 L
B 145 L
C 149 L
D 154 L
Answer:
149 liters of test solution (C)
Step-by-step explanation:
We are given that 25 mL of dye are mixed with 1.5 L of water to create 1 bottle of solution. If we convert 25mL to L, we get that there is 0.025 L of dye in each solution, and the total amount of liquid in a bottle of test solution is 1.525 L (0.025 + 1.5). Since we have 98 bottles like, the total amount of test solution is 98*1.525, which is 149.45 L. Since we have to round to the nearest whole number, the answer is C, or 149 L.
Circle the correct option: A, B, C, or D.
5. A box containing 30 identical books has a mass of 8.6 kg. The same box containing 50 of these books has a mass of 13.1 kg. What is the mass of each book?
A 0.225 kg
B 2.25 kg
C 4.5 kg
D 0.025 kg
Answer:
Option AStep-by-step explanation:
So we have: 30 books having a mass of 8.6kg50 books having a mass of 13.1kgSubtract 30 from 50 (50 - 30) = 20Subtract 8.6 From 13.1 (13.1 -8.5) = 4.5To find the mass of each book, we divide the mass by how many books we have left after subtraction.4.5/20 = 0.225 kgHope this helps.Good luck ✅.
A urn contains 3 red and 5 black balls. Tom first withdraws a ball from the urn and Mary withdraws a ball from the urn without replacement. They keep withdrawing a ball alternately until a red ball is selected. Find the probability that Tom selects the red ball.
a) 3/8
b) 15/64
c) 31/56
d) 48/64
e) 34/56
Answer:
The answer is B
Step-by-step explanation:
I learned this from my math teacher
help 30 points added
|-14| simplified
help!!
A theatre has 1,450 seats. If 42% of these are balcony seats. How many balcony seats does the theatre have?
Answer:
609
Step-by-step explanation:
All you must do is multiply 1450 by 0.42. That would give you the total.
Answer:
Hello! The answer to your question is 609 seats.
Step-by-step explanation:
To obtain your answer, you have to multiply the percentage of balcony seats by the total number of seats. 42% is converted to 0.42 because 42/100 = 0.42:
0.42 × 1450 = 609 seats
find the degree of 3m^2·n^4
Answer:
4
Step-by-step explanation:
The degree of a polynomial is the variable with the highest degree, in this case you have two variables and generally, when you have two variables, especially when they're grouped you would add the degrees So for example: [tex]xy^3 + x^2y^3[/tex]. The first term xy^3 has a degree of 4 because x has a degree of 1 and y has a degree of 3, adding those two becomes 4, the second term has a degree of 5 so the degree of the polynomial is 5. In your example, you provided [tex]3m^2-n^4[/tex], which you can think of as: [tex]3m^2n^0 * n^4m^0[/tex]. Adding the degrees you get 2 and 4 the highest one is 4, so the degree of the polynomial is 4
Answer:
4
Step-by-step explanation:
Here the exponent of n is 4, which is greater than the exponent of m, which is 2. Thus, the degree of this expression is 4.
39. ELECTIONS In an election, the winning candidate receives 60% of the votes. What percent of the votes does the other candidate receive?
Answer:
40%
Step-by-step explanation:
using our lovely knowledge of percents (or per 100s) we can see that 100-60 is 40, which means only 40% of the votes go to the losing candidate
Please help me answer the 3 questions below for me, tysm!
20. Find the total for the frequency table.
21. Find the relative frequency table value for "Business."
22. What should the total value always be for a relative frequency table?
Answer:
Step-by-step explanation:
7.26. Ben leaves his house at 7 a.m. and bikes at a constant speed of 15 miles per hour due east. Alisha lives 100 miles due east of Ben, leaves her house at 8 a.m., and bikes at a constant speed of 10 miles per hour due west. At what time do they meet?
Answer:
Ben and Alisha will meet at 11:40 a.m.
Step-by-step explanation:
Given: The time at which Ben leaves his house is 7a.m. and the constant speed at which he biked due east is 15mi/hr.
The time at which Alisha leaves her house is 8a.m. and the constant speed at which she biked due west is 10mi/hr.
The distance at which Alisha lives due east of Ben is [tex]$100 \mathrm{mi}$[/tex].
To find: The time at which they meet.
a. Analyze the given data.
b. Define a variable.
c. Form an equation.
d. Solve for the unknown variable.
e. Use addition, subtraction, multiplication, or division properties.
f. Find the required time.
Step 1 of 5
Let t represent the time (in hours) from 12a.m.
We can also assume the houses as being on the number line, where Ben's house is at 0 and Alisha's house is at 100 .
Ben starts biking at 7 a.m. and he moves right (along our imaginary number line) at 15 miles per hour.
So his position at a time t is 15(t-7).
Alisha starts biking at 8a.m. and she moves left at 10 miles per hour.
So her position at a time t is 100-10(t-8).
Step 2 of 5
Ben and Alisha will meet when their positions are equal. Thus equating both the equations, we get
15(t-7)=100-10(t-8)
Using the distributive property,
15t-105=100-10t+80
Step 3 of 5
By the addition and subtraction properties,
We get,
[tex]$$\begin{gathered}15 t+10 t=80+105 \\\Rightarrow 25 t=285\end{gathered}$$[/tex]
Step 4 of 5
By the multiplication and division properties,
[tex]$$\begin{aligned}t &=\frac{285}{25} \\\Rightarrow t &=11.4 \mathrm{~h}\end{aligned}$$[/tex]
Step 5 of 5
Converting the decimal into minutes,
[tex]$0.4 \times 60=24.0 \mathrm{~min}$[/tex]
Thus the required time is 11:24a.m.