you bought 12 red apples and 15 green apples to make a pie?
what is the ratio of the number of red apples to the total number of apples simplified?
Answer:
4:9
Step-by-step explanation:
12 red apples and 27 apples in total so it would be 12:27. Just divided it by 3
I think that's what the question is asking...
Suppose you deposit $2,000 in a savings account that pays interest at an annual rate of 4%.
Chen rode his skateboard 334 miles in 34 of an hour. What was his average speed in miles per hour?
The sun is 93,000,000 miles from Earth. What is the value of the 3 in the number 93,000,000
Answer:
three million
Step-by-step explanation:
A k out of n system is one in which there is a group of n components, and the system will function if at least k of the components function. For a certain 4 out of 6 system, assume that on a rainy day each component has probability 0.7 of functioning, and that on a non rainy day each component has probability 0.9 of functioning.Assume that the probability of rain tomorrow is 0.20. What is the probability that the system will function tomorrow
Using the law of total probability, the probability that the system will function is 0.86.
Let,
the probability of rainy day is= p(r),
probability of non-rainy day = p(nr),
probability that system will function = p(f),
probability that system will function if it is a rainy day = p(f|r)
probability that system will function in non-rainy day = p(f|nr)
Then the following information is given in the question:
p(r) = 0.20
then, p(nr) = 1-0.20 = 0.80
p(f|r) = 0.7 (4 out of 6 components function with 0.7 probability each)
p(f|nr) = 0.9 (4 out of 6 components function with 0.9 probability each)
We have to find the probability that the system will function tomorrow.
According to the total probability law:
Probability that function will function tomorrow = p(r)p(f|r) + p(nr)p(f|nr)
Substitute the given probabilities:
P(f) = 0.20 x 0.7 + 0.80 x 0.9
P(f) = 0.14 + .72
P(f) = 0.86
Hence, the probability that the system will function tomorrow is 0.86.
Learn more about law of total probability here:
https://brainly.com/question/33659923
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The ratio of the measure of the three angles in a triangle is 3:10:7. Find the measures of the angles
Group of answer choices
30, 90, 60
27, 90, 63
45, 45, 90
9, 30, 21
Answer:
sum of all angle= 180 given angle = 3 X, 10 X AND 7 X
3X + 10X + 7X = 180
20X = 180
X= 180/20
X = 9
X= 9 IS apply to given angle 3X, 10 X , 7X
3X = 3 ×9=27
10X = 10 ×9 = 90
7X = 7 ×9 =63
ANS IS 27,90,63
Step-by-step explanation:
Find the value of m. Quarts 0 1 2 e G 0 Gallons =0
if 2 quarts=1/2 galleon on the graph.
Then half of 2 quarts will be half of 1/2 galleons.
Therefore 1 quart=1/4 galleons.
Hope it helps!
What is the length of side BC 2x+7, 4x-7 4x
Answer:
64.6x
Step-by-step explanation:
plssss helppp!!!!!!!!!
Answer:
17. x=25
18. x=72
19. x=151
20. x=28
Step-by-step explanation:
list five different vocabulary words that could be used to describe each given expression A.a-d+c / B. 20- 3c/ C. B÷d+2
Answer: expression, addition, subtraction, divide , math
Step-by-step explanation:
plz give work below
Answer:
m < -6 or m > 8
Step-by-step explanation:
m - 2 < -8
Add 2 to both sides of the inequality.
m < -8 + 2
m < -6
m/8 > 1
Multiply both sides of the equation by 8
m/8 ⋅ 8 > 1 ⋅ 8
Simplify.
m > 8
good luck, i hope this helps :)
I need help please?!!!
The sum of three consecutive even integers is
312. Find the Integers.
Answer:
104, 105, 106
Step-by-step explanation:
Consider three consecutive integers. If the first is x then the second is 1 more than x (or x+1) and the third is x+2
The sum of these three integers is x + x+1 + x+2 and is known to be 312, so
x + x+1 + x+2 = 312, gather like terms
3x + 3 = 312, subtract 3 from both sides
3x = 309, divide both sides by 3
x = 104, so the integers are
104, 105, 106
What mistake did she make?
Step-by-step explanation:
According to the pythagrean equation, it should be
[tex]AC^2 = AB^2 + BC^2\\[/tex]
8² = 6² + BC²
64 = 36 + BC²
BC² = 28
BC = ✓28 = 5.29
321.5 miles in 5 hours
Answer:
i think its 64.3
find the value of a and b if 1/5+√7= a+b√7
Answer:
[tex]a=\dfrac{1}{5}[/tex] and b = 1
Step-by-step explanation:
Given that,
[tex]\dfrac{1}{5}+\sqrt7=a+b\sqrt7[/tex]
We need to find the value of a and b.
We should compare both sides of the above equation i.e.
[tex]a=\dfrac{1}{5}[/tex]
and
b = 1
Hence, the values of a and b are 1/5 and 1 respectively.
A recent study of the hourly wages of maintenance crew members for major airlines showed that the mean hourly salary was $20.50, with a standard deviation of $3.50. Assume the distribution of hourly wages follows the normal probability dis- tribution. If we select a crew member at random, what is the probability the crew member earns: a. Between $20.50 and $24.00 per hour
Answer:
0.3413 = 34.13% probability that the crew member earns between $20.50 and $24.00 per hour
Step-by-step explanation:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
A recent study of the hourly wages of maintenance crew members for major airlines showed that the mean hourly salary was $20.50, with a standard deviation of $3.50.
This means that [tex]\mu = 20.5, \sigma = 3.5[/tex]
a. Between $20.50 and $24.00 per hour
This is the pvalue of Z when X = 24 subtracted by the pvalue of Z when X = 20.5. So
X = 24
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{24 - 20.5}{3.5}[/tex]
[tex]Z = 1[/tex]
[tex]Z = 1[/tex] has a pvalue of 0.8413
X = 20.5
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{20.5 - 20.5}{3.5}[/tex]
[tex]Z = 0[/tex]
[tex]Z = 0[/tex] has a pvalue of 0.5
0.8413 - 0.5 = 0.3413
0.3413 = 34.13% probability that the crew member earns between $20.50 and $24.00 per hour
I need some help with problem 9
Answer:
it's really hard to see the numbers.. but I can explain how to do it. the 5 is on the x axis and the 0 is on the y axis. if you from 0 to 5 on the x axis and the line crosses through that point then it is true.
There is a bag filled with 4 blue and 5 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting exactly 1 blue?
Answer:
hvgf m g n HCF kvvfgfhhjfj
How did the Great Depression impact European nations?
How many ounces are in 13 pounds
Answer:
There are 208 ounces in 13 pounds :)
Answer:
208 oz
Step-by-step explanation:
1 lb = 16 oz
Where you see 1 lb, substitute it with 16 oz.
13 lb = 13 * 1 lb = 13 * 16 oz = 208 oz
1. A ball is launched upward at 14 m/s from a platform that is 30 m high.
a. Find the maximum height the ball reaches.
Step-by-step explanation:
Initial velocity ,u= 14 m/s
a =_g
= 9.8 m/s
velocity at highest point,v=30 m/ s
=2as=v sqare _u square
=s= 35.99 m
Find the area of the shaded figure. 1 unit 1 unit
Answer:
area of shaded region =total area - outer shaded area
Answer:
udvugeciiffhi3fo
Step-by-step explanation:
bc whcehfiwhidheihgeigdi2iwg
I need help fast like i apericiate the help i just dont get this
Answer:
30
Step-by-step explanation:
Since this is a right angle, we can use trig functions
Cos theta = adjacent side/ hypotenuse
cos ? = 20/23
Take the inverse cos of each side
cos ^-1 (cos ?) = cos ^-1(20/23)
? =29.59184579
To the nearest degree
? = 30
104
5
-10
-6
10
N
-10*
Given the graphs of f(x) = 3x - 3 and g(x) = -x + 5, which statements are true?
A)
The system has two solutions.
B)
The system has infinitely many solutions.
C)
Point (2, 3) is the only solution.
D)
Any point on either line is a solution.
E)
The point of intersection is the solution.
Answer:
C
Step-by-step explanation:
Can you guys help me and answer this math question below please I really need help I'll mark brainliest to whoever answers! Please I’d really appreciate the help
Answer:
(1,-2)
Step-by-step explanation:
WE can see that the X value below is 1 and the Y value is -2
the enrollment at Middle School drop by 168 cents from 2015 to 2019 find the average change in the number of students each year
Answer:
42
Step-by-step explanation:
It changes 42 cents each year
find the area of the shape
Answer:
1296 sorry if im wrong
Step-by-step explanation:
:):):):):):):):):):):):):):):):):):):):):):):)
Evaluate the expression of Pg +12 when p=7 and g =-3
Answer:
-9
Step-by-step explanation:
(7)(-3)+12
-21+12
-9
Answer:
-9
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
pg + 12
p = 7
g = -3
Step 2: Evaluate
Substitute in variables: 7(-3) + 12Multiply: -21 + 12Add: -9
The perimeter of the quadrilateral is 43 centimeters. Find the length of each side.
X+7
x² - 2x
X+3
2x-2
Side one = x + 3 =
cm
Step-by-step explanation:
A quadrilateral is made up of four sides. This means the sum of all the side equals 43. This is given as;
(x + 7) + (x² - 2x ) + (x +3) + (2x - 2) = 43
x² - 2x + 4x + 8 = 43
x² - 2x - 35 = 0
Upon solving for x by factorization;
( x - 5) ( x + 7) = 0
The values of x are; 5 and - 7
Since the side of shape cannot have a negative value, -7 is ignored.
x = 5
The length of the sides are;
- X+7 = 5 + 7 = 12
- x² - 2x = 5² - 2(5) = 25 - 10 = 15
- X+3 = 5 + 3 = 8
2x-2 = 2(5) - 2 = 10 -2 = 8
Check:
8 + 8 + 15 + 12 = 43