Step-by-step explanation:
Here's your solution
=> percentage of zinc = 30%
=> total weight of alloy = 300 gram
=> amount of zinc = (30/100)*300 = 90 gram
=> amount of copper = 300 - 90 = 210 gram
hope it helps
can u help me find the surface area for my work
Answer:
258
Step-by-step explanation:
There is a triangle and a parallelogram.
The triangle's area: 1/2 bh is 30
The parallelogram bh is 12*19
add them up and it is 258.
Can you follow me on Brainly?
Thanks!
Answer:
744; 1,206
Step-by-step explanation:
Prism 1:
2(19*13) + 5*12 + 2(5*19)
Multiply all the sides.
494 + 60 + 190 = 744
Prism 2:
2(20*9) + 2(18*20) + 9*14
360 + 720 + 126 = 1,206
Hope this helps (:
A health club manager wants to determine whether the members would prefer a new sauna or a new steam room. The club surveys 50 of its 600 members. What is the population of this study? The population is all 50 members of the health club. The population is all 600 and 50 members of the health club. The population is all 600 members of the health club. The population is all 30,000 members of the health club.
Answer:
The population is all 600 members of the health club
Explanation:
50 members were chosen out of all 600 members thereby telling us that the sample of the study/survey is 50 members while the population is all 600 members. A sample represents the population and is collected from the population to make it less tedious to study and make conclusions on the population. For example, given that the population of a study are individuals or objects of common characteristics, 50 members tell the needed story and relays the characteristics and/or definition of the whole population, thereby forming a basis to make a conclusion on the population.
Find the midpoint of points A(9, -2) and B(-1,8) graphically.
Answer:
the midpoint is (4,3)
Step-by-step explanation:
Find the value of x. Round to the nearest tenth. Assume that segments appearing to be tangents are tangent to the circle.
Answer:
x=8.4Step-by-step explanation:
[tex](2x)^{2} +12.6^{2} =21^{2} \\\\4x^{2} +158.76=441\\\\4x^{2}441-158.76\\\\4x^{2} =282.24\\\\x^{2} =70.56\\\\x=8.4[/tex]
hope it helps....
have a great day :)
would n-3/n+3 cancel out?
Answer:
Let's work this out.
n - 3 / n + 3
n / n + 6
In order to avoid it cancelling out, we only cancelled out one side.
2n = 6
n = 3
Help brainliest question!!!
Answer:
The second option
Step-by-step explanation:
Since root 16 is an integer (4), the second option produces the fraction 4/5 which is rational.
The daily cost of hiring a plumber, y, to work x hours on a repair project can be modeled
using a linear function. The plumber charges a fixed cost of $80 plus an additional cost of
$45 per hour. The plumber works a maximum of 8 hours per day.
For one day of work, what is the range of the function for this situation?
A0
B 80
C 0
D 45 < < 685
Answer:
i have the same question
Step-by-step explanation:
i have the same question
Can someone help me please
Answer:
to find how many sales Ross made in a day divide 27 by 3 and to find Mona's divide 49 by 7 since there is 7 days in a week
Step-by-step explanation:
27/3 = 9 so Ross made 9 sales in a day
49/7 = 7 so Mona made 7 sales in a day
9>7
therefore Ross made more sales
plss help i’ll give brainliest thank you!
Answer:
D
Step-by-step explanation:
As,
-10 is always greater than -13
Hence, -13 < -10
When working with positive and negative numbers, the further left you move on the number line, the________the numbers are and the further right you move on the number line, the_________ the numbers are.
fill in the blanks please
Help me pleaseee i need helpppp fast!!
Answer:
Awnser #3
Step-by-step explanation:
Justr did it
Rewrite the sum of 30 and 42 by factoring out of the greatest common factor
Answer:
12
Step-by-step explanation:
Factors of 30: 1,2,3,5,(6),10,15,30
Factors of 42: 1,2,3,(6),7,14,21,42
30 divided by 6, 42 divided by 6
(5) + (7)= 12
I will mark you brainiest if you can answer this
Answer:
9 buses
12 cars
(Step-by-step explanation:
x=bus x+y=21 --> y=-x+21
30x+4y=318 --> y= -30x/4 + 318/4
y=car
x= 9
y=12
:) hope this help
Independent Practice
Which property justifies the step shown in solving this equation?
− y−5=11
−y−5+5=11+5
A.
Multiplication Property of Equality
B.
Addition Property of Equality
C.
Division Property of Equality
D.
Subtraction Property of Equality
Answer:
i dont know
Step-by-step explanation:
9
1 point
Karla needs a box to pack her fish tank shown below. How many square feet of cardboard does she need to buy?
5
4 ft
6
2ft
6 ft
7
56 ft2
48 ft2
8
Ο Ο Ο Ο.
32 ft2
88 ft
Next
10
Previous
Answer:
give the full questions
Please help I’m in the middle of a math test and I’m very confused
Answer:
2
Step-by-step explanation:
in my opinion with out (0,0) there is no others
I tried this problem out but I’m not sure if I’m right also this is a test worth 100 points can someone show me if u made any mistake can j explain also ?
Answer:
Median without outlier should be 40
For the bottom questions, it should go:
Decreases the mean, does not change the median, does not change the mode
It's decreasing the mean because it goes from 44.7 to 39
Median w/ and without outlier is both 40
Mode also stays the same w/ or without the outlier, which is 96
a. The ratio of pages read by Liam to
pages read by Amir is 1:5. If Liam read
12 pages, how many pages did Amir
read? Explain your reasoning.
ANSWER QUiCK PLZZ NO WEBSITE
Step-by-step explanation:
For every page that Liam reads, Amir reads five, so if Liam read 12 pages, then Amir read 12 * 5 = 60 pages
Which number line represents the solutions to 1-2x1 = 4?
+
4
-10-8-6-4-20
2
6
8
10
f
+ +
-10 -8 -6 -4 -2 0
+
6
+
8
2
4
10
+
O Att
-10-8-6-4-20
+
6
2
4
8
10
+
-10 -8 -6 -4 -2
+
2
+
4
O
6
8.
10
Answer:
The third number line where x = -2, 2
Step-by-step explanation:
The solution is, the number line represents the solutions is given below.
here, we have,
given equation is,
25x + 200 > 1,200
Subtract 200 from each side
25x + 200-200 > 1,200-200
25x> 1000
Divide by 25
25x/25 >1000/25
x>40
To learn more on number line click:
brainly.com/question/29162579
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Someone please help!
Given:
[tex](\sin x)^2+(\cos x)^2=1[/tex]
[tex]\cos \theta = \dfrac{4\sqrt{2}}{7}[/tex]
To find:
The value of [tex]\sin \theta[/tex].
Solution:
We have,
[tex]\cos \theta = \dfrac{4\sqrt{2}}{7}[/tex]
Putting this value in the Pythagorean identity, we get
[tex](\sin \theta)^2+(\cos \theta)^2=1[/tex]
[tex](\sin \theta)^2+\left(\dfrac{4\sqrt{2}}{7}\right)^2=1[/tex]
[tex](\sin \theta)^2+\dfrac{16(2)}{49}=1[/tex]
[tex](\sin \theta)^2+\dfrac{32}{49}=1[/tex]
[tex](\sin \theta)^2=1-\dfrac{32}{49}[/tex]
[tex](\sin \theta)^2=\dfrac{49-32}{49}[/tex]
[tex](\sin \theta)^2=\dfrac{17}{49}[/tex]
Taking square root on both sides, we get
[tex]\sin \theta=\pm \sqrt{\dfrac{17}{49}}[/tex]
[tex]\sin \theta=\pm \dfrac{\sqrt{17}}{7}[/tex]
The given value of [tex]\sin \theta[/tex] is positive. So, [tex]\sin \theta= \dfrac{\sqrt{17}}{7}[/tex].
Therefore, the value of value [tex]\sin \theta[/tex] is [tex]\sin \theta= \dfrac{\sqrt{17}}{7}[/tex].
What is the difference between the amounts of interest Henry and Ingrid paid for their loans
Answer:
When you buy more expensive items or buildings it will raise your intrest so thats the difference look in between the two.
Step-by-step explanation:
Good luck on the rest of the quiz
What is the y-intercept of the line?
A: -2
B: 0
C: 1
D: 1/2
Answer:
C: 1
this answer is c because the line is one the Y intercept of 1
If I have the coordinats (4, 3) and (2, 2) what is distance do we get
Answer:
※※※※※※※※※※※※※※※※※
Hi! The answer to your question is [tex]\sqrt{5}[/tex]
Step-by-step explanation:
Use the Distance Formula to determine the distance between two points.
- Brooklynn Deka
❣❣
3/4 years equal how many months
Answer:
9
Step-by-step explanation:
As the economic prosperity of the 1990s decreased, what changes would one expect in the design of houses?
Answer:
immagrants would start to make houses out of stone sticks and hay
Step-by-step explanation:
pls mark brainlyest
Answer:
They don't like the look or it doesn't fit the style of their home. I could argue back and say that if they at least look at all the options, they might change their mind. Also, people are making new Eco-friendly products that might fit their house style every day
Step-by-step explanation:
PLEASE HELP ME ITS MY LAST QUESTION!!
Write three very large numbers and three very small numbers. Now write them using scientific notation. Then
perform one calculation with the numbers.
100 = 10^2
1000 = 10^3
10000 = 10^4
0.1 = 10^(-1)
0.01 = 10^(-2)
0.001 = 10^(-3)
Now,
100 × 0.1 = 10^2 × 10^(-1)
= 10
It is given that yvaries directly as x. If y= 5 when x= 4 determine the constant of variation,
Answer:
[tex]k=\dfrac{5}{4}[/tex]
Step-by-step explanation:
Given that,
y varies directly as x. It means,
y = kx
Where
k is the constant of variation
or
[tex]k=\dfrac{y}{x}\\\\k=\dfrac{5}{4}[/tex]
So, the constant of variation is [tex]\dfrac{5}{4}[/tex].
Find the diameter of a circle with the given dimensions. 1. d = 6 cm
But the diamerter equals d, so 6.
Answer:
its 6
Step-by-step explanation:
because your finding the diameter.
20% of 49 is?
NEED HELP
Answer:
Step-by-step explanation:
20% of 49 = [tex]\frac{20}{100}*49=0.2*49=9.8[/tex]
Evaluate the exponential expression. 14^2
Answer:196
Step-by-step explanation:
Answer:
196
Step-by-step explanation:
Exponential expressions are just a way to write powers in short form. The exponent indicates the number of times the base is used as a factor. So in the case of 32, it can be written as 2 × 2 × 2 × 2 × 2=25, where 2 is the “base” and 5 is the “exponent”. We read this expression as “two to the fifth power”.