Answer:
10
Step-by-step explanation:
Let us find the exact number of donors of gold and bronze respectively given there are 40 in total.
Gold: 45% of 40 = 45/100 *40 = 18 donors
Bronze: 20% of 40 = 20/100 *40 = 8 donors
18 donors - 8 donors = 10 more donors
I hope this helps! :)
Solve the equation. 3(n - 7) =
-30
A -3
B 3
C -9
D 23
Answer:
n = -3
Step-by-step explanation:
3(n - 7) = -30
3n - 21 = -30
3n = -9
n = -3
I need these answered pls
Answer:
what exactly do we do here?
Step-by-step explanation:
if we are telling which ones are functions then it would be all of them except for 2, 5, and 6. the rest are functions. please comment if i got or attempted to get this correct.... sorry...
what is the slope of the line graphed below
Answer:
-1/2
Step-by-step explanation:
Slope = rise/run
rise = -1
run = 2
Therefore, the slope = -1/2
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Mensa is an international society that has one and only one qualification for membership: a score in the top 2% on an IQ test. a. What IQ score should one have in order to be eligible for Mensa
Answer:
130.81
Step-by-step explanation:
We solve this question using z score formula
z = (x-μ)/σ,
where from the question:
x is the raw score = ?
μ is the population mean = 100
σ is the population standard deviation = 15
We are told in the question that:
Mensa is an international society that has one and only one qualification for membership: a score in the top 2% on an IQ test.
The top 2% means a score in the 98th percentile
The z score of the 98th percentile = 2.054
Hence:
2.054 = x - 100/15
Cross Multiply
2.054 × 15 = x - 100
30.81 = x - 100
x = 30.81 + 100
x = 130.81
The IQ score that one should have in order to be eligible for Mensa is the score of 130.81
will and olly share £80 in the ratio 3 : 2
Answer:
Will's share = 48
Olly's share = 32
Step-by-step explanation:
Will's share : Olly's share = 3:2
Will's share = 3x
Olly's share = 2x
3x + 2x = £ 80 {Combine like terms}
5x = 80 {Divide both sides by 5}
x = 80/5
x = 16
Will's share = 3x = 3*16 = 48
Olly's share = 2x = 2*16 = 32
Which expression is equivalent to +7?
Which expression is equivalent to 5/6 divide to 7
Answer:
(5/6)/7!
5/(6*7!)=5/(6*7*6*5*4*3*2*1)=1/(6*7*6*4*3*2*1)=1/6048=0.0001653439
Step-by-step explanation:
The answer is 5/6x1/7
URGENT PLEASE HELP
Consider this equation.
cos(0)= -2√5/5
If 0 is an angle in quadrant II, what is the value of sin(0)?
Answer:
I hope this can help
Step-by-step explanation:
The value of sin(0) should be considered as the [tex]\sqrt{5} \div 5[/tex]
Calculation of the value of sin(0):Since the equation is [tex]cos(0)= -2\sqrt 5/5[/tex]
Also in the case when 0 is an angle in quadrant II
So based on this, we can say that value of sin(0) should be considered as the [tex]\sqrt{5} \div 5[/tex]
Learn more about an equation here: https://brainly.com/question/4874021
Find the value of x so that the ratios 9 : x and 15 : 40 are equivalent.
Answer:
x = 24
Step-by-step explanation:
x/9 = 40/15
x/9 = 8/3
x/9 = 24/9
x = 24
The ratio of 6:5 can be expressed as
Answer:
the ratio of 6:5 can be expressed as 6/5
Find the missing angle to the nearest degree.
19
32
degrees
Answer:
Step-by-step explanation: i think that it would be 32 degrees but im not quit shur
A wheel assembly is
made from 2 wheels,
each weighing 2.6
pounds, and a steel
axle, which weighs
1.8 pounds. What is
the total weight of
the assembly?
Answer:
The total weight of the assembly is 7 pounds.
Step-by-step explanation:
The total weight of the assembry is found by the sum of the weights of each components.
We have:
2 wheels, each weighing 2.6 pounds, so 2*2.6 = 5.2 pounds
An axle, which weighs 1.8 pounds, so 5.2+1.8 = 7 pounds
The total weight of the assembly is 7 pounds.
What is the value of y
O 12
O 1/3
O 6
O 2
the first quartile of a data set is 33, and the third quartile is 53. which value in the data set is an outlier
Answer:
84
Step-by-step explanation:
53-33=20
53+1.5(20)=83 so anything above 83 is ur answer
I'm Jeff Bezos. AMA (ask me anything)
Answer:
CAN I GET AMAZON GIFT CARD AND SOME MULLA THANKS LOVE YOU SUGAR ZZZADDY
Step-by-step explanation:
Andrea's dad ran 12 miles and 75 minutes on a treadmill if he runs at that rate how far could he run in 30 minutes
Answer: 187.5
Step-by-step explanation: Divide 75 by 12 to get 6.25 then multiply that by 30 to get 187.5.
simply and write in exponential form
(1) p2*p-7
Answer:
[tex] {p}^{2} \times {p}^{( - 7)} = {p}^{(2 - 7)} = {p}^{ - 5}[/tex]
is the right answer.
Are these correct please help
Answer:
x=x+1 is correct, -6x=-5(x-1)-1x is correct, 7(x-5)=x+13 is correct, x=x is correct, x+4=x+4 is correct.
5(x+2)=25 should go in one solution.
2x+2=2(x+1) should go into infinite solutions.
2x+3=2x+5 should go into no solution.
9x+1=9x should go into no solution.
2x+8=16 should go into one solution.
3x+1=31 should go into one solution.
Step-by-step explanation:
Explanation(s):
5(x+2)=25:
One value of x will equal 25, which is 3. You can solve this in two ways, calculations or graphing. I will show you both ways. You'll get 5x+10 from 5(x+2). Then you can subtract ten from both sides to isolate x, 5x=15. Then divide both sides by five to find what x equals, which is three. By graphing both the equations 5x+10 and y=25, you'll find that both of the lines intersect at (3,25), the x value of the coordinate is what x will equal, and there's only one intersection so there's only one solution.
2x+2=2(x+1):
The equation will be the exact same on both sides, which means all values of x will be a solution. If you were to graph both equations, they'd overlap perfectly, resulting in an infinite amount of intersections.
2x+3=2x+5:
The equation cannot be simplified any further, and 2x+5 is transformed two units above the equation 2x+3. If you were to graph both of these equations, they will never intersect for any value of x, which means no solutions.
9x+1=9x:
The equation cannot be simplified any further, and 9x+1 is transformed one unit above the equation 9x. If you were to graph both of these equations, they will never intersect for any value of x, which means no solutions.
2x+8=16:
Subtract eight from both sides, then divide both sides by two to get x=4. This means that there is only one solution for the equation. Alternatively, you could graph 2x+8 and y=16, and they will intersect at the point (4,16), which is only one solution.
3x+1=31:
Subtract one from both sides, divide by three to get x=10. There is only going to be one solution for the equation. Graph 3x+1 and y=31 to find that both the lines intersect at (10,31).
SOMEONE PLEASE PLEASE HELP!!!!!
Answer:
1800
Step-by-step explanation:
Consider the series 7/9+7/27+7/81+7/243
Answer:
=1 37/243
Step-by-step explanation:
the series is that the numerator is all 7
srry if its wrong i dont rlly understand what its asking
Answer:
= 1.1522....
Step-by-step explanation:
7/9 +7/27 +7/81 + 7/243
189 + 63 + 1,701 + 567
243. 19,683
= 252 + 2,268
243. 19,683
= 4,960,116 + 551,124
4,782,969
= 5,511,240
4,782,969
= 1.15
Mr.perkins has $120 in a savings account .the interest rate is 5% per year and it is not compounded how much will he have in 2 years
Answer:
The answer is $132
Step-by-step explanation:
120+ (5% of 120) (2)
120+(6)(2)
120+12
=132
If Janet maintains the same driving rate can she drive more than 600 miles in 10 hours?Explain
A company sells, amongst other products, a medicated shampoo. The shampoo is sold in container sizes that are labeled as containing 500 ml. The volume of liquid that is actually put into the containers is normally distributed with a mean of 510 ml and a standard deviation of 10 ml.
(a) Estimate the probability that a container chosen at random will hold
(i) more than 520 ml
(ii) between 495 ml and 515 ml
(iii) less than the advertised amount
Answer:
between (ii)
Step-by-step explanation:
A snail crawls 9 millimeters per second. How many centimeters can it crawl in 50 seconds?
Answer:
450 millimeters
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
2.John is playing a video game in which he needs to catch balls. He earns 20 points for each of the first 25 balls that
he catches and 112 times the regular score for every additional ball that he catches. How many points does he earn for
catching 30 balls?
F. 507.5
G. 545
H. 600
J. 650
K. 900
Answer:
F
Step-by-step explanation:
Because I did the math.
a) Work out the value of angle x.
b) Give reasons for your answer.
Answer:
60 degrees
Step-by-step explanation:
The bottom and top horizontal lines are parallel. This means x and the bottom right angle in the triangle are the same. Because of the lines going through the triangle's sides we know the triangle's lengths are the same, making it an equilateral triangle. In an equilateral all angles are the same size: 60 degrees.
His income is 7x +6 everyday. What is his total income in x days?
Answer:
20
Step-by-step explanation:
7x+6=7 (2)+6=14+6=20
(let me know if it's wrong)
2/3 divided by 1/7? 7/4 divided by 3/2? I NEED THIS IMMEDIATELY PLS!!
Answer:
1. 14/3
2. 7/6
Step-by-step explanation:
hope that helped you!
need help with the slope
Answer:
for sure it's a negative since the slop is going down.. other than that, that's all I can help you with since I'm barely learning about that too :)
What’s the answer to this? 4x-4=4x is it infinitive solution?
Answer:
16 ?
Step-by-step explanation:
Answer: There are no values of
x that make the equation true.
No solution
Step-by-step explanation:
Find the y-intercept. 4) 4x + 3y=-3 A) -3 B) 3 C) -5/2 D) -2/5
Answer:
Please check the explanation.
Step-by-step explanation:
Given the equation
[tex]4x + 3y=-3[/tex]
We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.
Thus,
substituting x = 0 in the equation
[tex]4x + 3y=-3[/tex]
[tex]4(0) + 3y = -3[/tex]
[tex]0+3y = -3[/tex]
[tex]3y = -3[/tex]
divide both sides by 3
[tex]\frac{3y}{3}=\frac{-3}{3}[/tex]
Simplify
[tex]y = -1[/tex]
Therefore, the y-intercept is: -1
Note: it seems that you did not add the right option to chose.