Kaylie needs 3 pounds of the 20% nickel metal to combine with 6 pounds of the 80% nickel metal to form an alloy containing 60% nickel.
To solve the problem, we can use the concept of weighted averages. The first step is to determine the amount of nickel in each metal before they are combined.
For the 20% nickel metal, 20% of the metal is nickel. Therefore, the amount of nickel in x pounds of this metal is 0.2x.
For the 80% nickel metal, 80% of the metal is nickel. Therefore, the amount of nickel in 6 pounds of this metal is 0.8(6) = 4.8 pounds.
Next, we can use the weighted average formula to determine the amount of nickel in the alloy:
0.2x + 4.8 = 0.6(x + 6)
Simplifying the equation:
0.2x + 4.8 = 0.6x + 3.6
0.4x = 1.2
x = 3
Therefore, Kaylie needs 3 pounds of the 20% nickel metal to combine with 6 pounds of the 80% nickel metal to form an alloy containing 60% nickel.
In summary, to determine the amount of metal-containing 20% nickel needed to combine with 6 pounds of metal containing 80% nickel to form an alloy containing 60% nickel, we used the concept of weighted averages and found that Kaylie needs 3 pounds of the 20% nickel metal.
To know more about nickel refer here:
https://brainly.com/question/14221416#
Question 3 of 45
The scatterplot shown below represents data for each of the years from 2006
to 2015. The plot shows the percent of people 62 years of age and older who
were working and then retired during each of those years. If this trend continued,
which of the following best predicts the percent who retired in 2016?
Answer:
64%
Step-by-step explanation:
What is 15 divided by 3 1/3
Answer:
4 2/3
Step-by-step explanation:
What is the value of the larger zero of the function defined by x²+12x+27?
A. 9
B. 3
C. -3
D. -9
Write each percent as a fraction in simplest form: 10:56 1/4% 11:15 3/5% 12:13 1/3%
Answer:
10:56 = ?; 1/4% = 1/400; 11:15 = ?; 3/5% = 3/500; 12:13 = ?; 1/3% = 1/300
Step-by-step explanation:
10:56, 11:15, 12:13, are not viable to be converted so I don't understand but here is the rest.
Answer:
5/28
Step-by-step explanation:
10:56=10/56=5/28
Sketch the graphs using 3 points that belong to it...
-3x+2
-3x-2
Answer this problem too pls
15/17 + 3/16 + 2/17 + 13/16=?
+30pts and Brainliest QUICK PLS!
A restaurant manager recorded the drinks ordered by 150 customers. Each customer ordered one drink. The results are shown in the circle graph below.
How many customers ordered juice, tea or water?
Answer:
82% of people ordered juice, tea, and water
Step-by-step explanation:
Answer:
123 customers
Step-by-step explanation:
12%tea+30%juice+(100-12-30-18=40) 40% water=
82%
82% of 150
150*0.82
123
PLZ HURRY!!!! 15 POINTS!
Mary is babysitting a 4-year-old. The little boy wants to play in the kiddie pool in the backyard. Mary knows that using the hose that is near the kiddie pool will take 30 minutes to fill up. The little boy has already asked 17 times if the pool is ready but she hasn't even turned on the water yet. Mary also knows that the hose from the front yard works faster and can fill the pool in 1/2 the time as the hose in the back yard. If she can use both hoses at the same time, how long will it take for the pool to fill up?
Answer:
7.5 min
Step-by-step explanation:
Pls help need help ASAP 50 points you will be reported if the answer is wrong
Answer:
Part A = 10in = 35 ft
= 20 = 70 ft
Part B =
$ 178.5
Step-by-step explanation:
Answer:
Part A:
10in = 35 ft
20in = 70 ft
Part B:
$ 178.50
Step-by-step explanation:
Hope I helped (p.s. maybe brainliest answer)
Britney bought 13 chocolates. Austin bought c times as many chocolates as Britney. Write an expression that shows how many chocolates Austin bought.
Type an asterisk ( * ) if you want to use a multiplication sign and a slash ( / ) if you want to use a division sign.
Answer: 13c=how many Austin bought
Step-by-step explanation:
It's simply the amount Britney bought multiplied by c...
13c=
!!PLS ANSER ASAP!!
Jeff can spend no more than $4000 on his vacation. The plane fare cost 637$ per person. If he wants to take friends with him, how many can he bring?
Answer: He can take 6 friends.
Step-by-step explanation:4,000 divided by 637 is 6.29. There can not be part of a person so we round down to 6.
Answer: Its long division
Step-by-step explanation: The key word "per" let's you know that it's divided indivisually between each person.
Point T has coordinates (-7, -3). If it's reflected across the line x = 2, what will be the coordinates of its image?
(11, -3)
(7, -3)
(-7, 7)
(7, 3)
Answer
the point after reflection are (11,-3)
Help me pls...............
Answer: 3x+3, 5x+40, 4x+24
A regular pentagon with side length s has perimeter 5s. Dakota built a dog pen in her backyard for her dog's new puppies. The pen is shaped like a regular pentagon and has 40-inch sides.
What is the perimeter of the pen?
Write your answer as a whole number or decimal.
This is the last question to my review Im not able to find a definite answer Can someone help me? This is Algebra 1
Answer:
i think it would be the 2nd option
Step-by-step explanation:
Please help. Its due in 10 minutes
Answer: No
Step-by-step explanation: if he pays $25 a month, in 6 months that would only be $150 with no interest charges
6x25=150
Please help me
Explain your steps please.
Will give brainliest.
Answer:
C
Step-by-step explanation:
It's 20.
HIII PLEASE HELP ITS 6 GRADE MATHS LOLL
Answer:
-5, -7, -4, -6, -10
Step-by-step explanation:
Hope this helps!
Kendrick and Perla spend a total of $92 at an amusement park. They spend $15 on parking, $13 at lunch, and the rest on two admission tickets.
How much does each admission ticket cost, in dollars?
Answer:
Each admission ticket costs $32
Step-by-step explanation:
92 - 15 -13 = 64
64/2 = 32
I REALLY NEED HELP LIKE ASAP
1. The square on the inside is 8 x 8 = 64
2. The triangle's area is 8x9x1/2= 72 x 1/2 = 36
3. there are 4 triangles so 36 x 4 = (or 72 x 2 ) = 144 :)
Answer:
MAKE GUY ABOVE ME BRAINLIEST YOU CAN NOW JUST CLICK THE CROWN
Step-by-step explanation:
Which list contains degree measures that cannot be the angle measures of a triangle?
A.
37°, 40°, 103°
B.
51°, 88°, 41°
C.
45°, 90°, 45°
D.
55°, 102°, 33°
Pls need help due in 20 mins- n no mfkn links pls pls plsss
Answer:
B
Step-by-step explanation:
speed is determined by the gradient
car 1 gradient = change in y / change in x = [tex]\frac{85 - 75}{17 -15} = \frac{10}{2} = 5[/tex]
car 2 gradient = 10
so car 2 is travelling faster than car 1
Whats is 7 = 12v - 24?
Answer:
To the nearest tenth: v = 2.6
To the nearest hundredth: v = 2.58
Fraction form = 31/12
Step-by-step explanation:
1. Add 24 to both sides to cancel it out on the right
7 = 12v - 24
+24 +24
2. Divide each side by 12
31 = 12v
31/12 = 2.5833333
12/12 = 1v = v
v = 2.583333
NEED HELP ASAP
Marsha and Tian are making table decorations for a party. Marsha made 2/9 of a decoration in half and hour. Tian made 2/3 of a decoration in the same amount of time. How much more of a decoration did Tian make in a half and hour?_______
How much would they make in a half hour if they worked together?______
Answer:
4/9 and 8/9
Step-by-step explanation:
[tex]\frac{2}{3}[/tex] and [tex]\frac{2}{9}[/tex] you have to have a common denominator so you take 3 and 9 and find what they both go into and that number is 9 so take 2/3 and times the top and bottom by 3 to get 6/9 and 2/9 by 1 to get 2/9 once you have those subtract them to get 4/9 and that's your first answer then take them and add so you get 8/9 which is your second answer.
I really need help!!!!
Answer:
I'm not sure on the answers but I'll give you a little tip you can look at the back of your math book and it will actually give you some of the answers:))
Answer:
Yeah if you flip to the back it should give you what you need lol
Step-by-step explanation:
i gotta finish missing work, i'll give brainliest to whoever answers right
Answer:
Step-by-step explanation:
7. 6 + 1/2 + 1/2 = 7
8. shade it
9. 1.3 + 0.2 + 0.4 = 1.9 0.8 + 0.2 + 0.7 = 1.7
10. (2)(4)(5) = 40
(4)(5)(1) = 20
(5)(6)(0) = 0
hope dis helps ^-^
what is √4
i have to right more i have to right more
Answer:
2
Step-by-step explanation:
√4
2
Answer:
2
Step-by-step explanation:
The square root of 4 is 2. 2(2)=4. See how they are the same numbers multiplied by each other, like a double. Well, then it is a square root.
Please help with this
Please explain your answer
Will give brainliest
Answer:
Ok so i have NO CLUE how to do this, but if i had a guess i would times 6x2x12x1/2. That should be your answer. PLZ tell me if i am right :)
Step-by-step explanation:
Answer:
cd is 12
Step-by-step explanation:
Please help me whith this
The angles represented by the expressions (2x+46) and (3x-6) are complementary angles. find the measure of the larger angle. Im really confused. Could someone help.
Answer:
66
Step-by-step explanation:
complimentary angles add up to 90 so:
3x-6 + 2x +46 = 90
5x +40 = 90
5x = 50
x = 10
2(10)+46 = 66
3(10) - 6 = 24
please helpp!!!You are stuck in a big traffic jam on the freeway and you are wondering how long it will take to get to the next exit, which is miles away. You are timing your progress and find that you can travel of a mile in one hour. If you continue to make progress at this rate, how long will it be until you reach the exit? Solve the problem with a diagram and explain your answer.