Answer:
A. 2/3
Step-by-step explanation:
Fraction is another way to divide , So in some math problems they want you to either flip the fraction or divide the numbers .
Option A is correct, the expression 2÷3 written as a fraction is 2/3.
What is Fraction?A fraction represents a part of a whole.
We have to write 2÷3 as a fraction.
Two divided by three.
We have to split the number two by three parts.
We know that any division expression can be written as a fraction, the numerator is a part and denominator is a whole.
Two is the numerator and three is the denominator.
The numerator represents the part and three represents the whole.
This we can write in fraction as 2/3.
Two by three is the fraction form of two divided by three.
Where as [tex]3\frac{1}{2}[/tex], is not a fraction, it is a mixed number.
3/2, is not equivalent to 2 ÷ 3, it represents the fraction one and a half and [tex]2\frac{1}{3}[/tex] is not equivalent to 2 ÷ 3, it represents the mixed number two and one-third.
Hence, Option A is correct, the expression 2÷3 written as a fraction is 2/3.
To learn more on Fractions click:
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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:
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.
an examination class of 55% of pupil scored 70% , if 54 scored above 70%. how many scored above 70%.
Answer:
You just said the answers. 54
Step-by-step explanation:
5
What is the length of side BC 2x+7, 4x-7 4x
Answer:
64.6x
Step-by-step explanation:
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
In a survey of a community, it was found that 55%
like summer season, 20% like winter season, 40%
don't like both seasons and 750 like both seasons. By
using Venn diagram, find the number of people who
like winter season.
Answer:
The number of people who like winter season is 1000.
Step-by-step explanation:
Event event correspond to a set in the Venn diagram, and we use it to find the percentages.
I am going to say that:
Event A: Like summer season
Event B: Like winter season.
55% like summer season
This means that [tex]P(A) = 0.55[/tex]
20% like winter season
This means that [tex]P(B) = 0.2[/tex]
40% don't like both seasons
This means that 100% - 40% = 60% like at least one, which means that [tex]P(A \cup B) = 0.6[/tex]
Proportion who like both:
This is [tex]P(A \cap B)[/tex]. The measures are related by the following equation:
[tex]P(A \cup B) = P(A) + P(B) - P(A \cap B)[/tex]
[tex]P(A \cap B) = P(A) + P(B) - P(A \cup B)[/tex]
Using what we have
[tex]P(A \cap B) = 0.55 + 0.2 - 0.6 = 0.15[/tex]
750 like both seasons.
This is 15% of the sample. So the total number of people is t, for which:
[tex]0.15t = 750[/tex]
[tex]t = \frac{750}{0.15}[/tex]
[tex]t = 5000[/tex]
20% like winter season
Out of 5000. So
0.2*5000 = 1000
The number of people who like winter season is 1000.
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
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
Help me out on this pleaseeeeeeeeeee
Answer:
(2,32)
(3,48)
Step-by-step explanation:
2×16=32
3×16=48
The Yankees 90 of their 162 games last season. What percentage of their games did they win?
Answer:
If they won 90 out of 162, they won 55.(5)% of their games.
Step-by-step explanation:
I assume they WON 90 of the 162 games.
90/162 = 45/81 = 15/27 = 5/9
5/9 = 55.(5)%; (because 1/9 = 11.(1)%)
Answer:
55.56%
Step-by-step explanation:
1. Put into a fraction = 90/162
2. Simplify = 5/9
3. Calculate the fractions value by dividing the numerator by the denominator.
4. Multiply the answer by 100
5. Simplify
Hopefully this helps!
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
Suppose you deposit $2,000 in a savings account that pays interest at an annual rate of 4%.
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
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.
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 :)
plssss helppp!!!!!!!!!
Answer:
17. x=25
18. x=72
19. x=151
20. x=28
Step-by-step explanation:
Which number is not located in the correct set of numbers?
1
9
TT
25
160
Look at this graph, what is the slope?
Answer:
3/2
Step-by-step explanation:
find 2 points and go up til you are even with it(3 in this case) this is your rise, then go over to the other point(2 in this case) this is your run, so the slope (rise/run) is 3/2
-Todo <3
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:
I need help please?!!!
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
Chen rode his skateboard 334 miles in 34 of an hour. What was his average speed in miles per hour?
find the area of the shape
Answer:
1296 sorry if im wrong
Step-by-step explanation:
:):):):):):):):):):):):):):):):):):):):):):):)
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:
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
PLEASE HELPPPP 10 points for its!!!!!!!!!!
Answer:
area of the square = (SIDE)2
=( 4)^2
= 16 answer
5x^2-9x-2=0
Will mark brainliest!
Answer:
x = 2 and x = -1/5
Step-by-step explanation:
Factors into (x-2)(5x+1) = 0 and you have your two values for x.
Or solve by quadratic formula [tex]x = \frac{-(-9) \pm \sqrt{9^{2} - 4(5)(-2)} }{2\cdot5} \\x = \frac{9 \pm 11}{10}.\\[/tex]
Two values, [tex]x = \frac{20}{10} = 2\\x = \frac{-2}{10} = -1/5[/tex]
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 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!
A caterpillar crawling in a straight line across a coordinate plane starts at point (-3, -4) and ends at point (25, 38). Counting the start point and end point, how many points with integer coordinates does the caterpillar touch?
Answer:
15 points
Step-by-step explanation:
The start and end point of the caterpillar path are;
Start point = (-3, -4)
End point = (25, 38)
The slope of the caterpillar's path, 'm', given the 'x', and y-coordinates of two points is given by the following formula;
[tex]Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
Therefore, m = (38 - (-4))/(25 - (-3)) = 1.5
The equation of the caterpillar's path in point and slope form is given as follows;
y - (-4) = 1.5 × (x - (-3))
y + 4 = 1.5 × (x + 3)
y + 4 = 1.5·x + 4.5
y = 1.5·x + 4.5 - 4 = 1.5·x + 0.5
y = 1.5·x + 0.5
Given that the 0.5 is added to the product of 'x' and 1.5, the points that have both integer points for 'x', and 'y' are the points that have odd number values of 'x', as follows;
(-3, -4), (-1, -1), (1, 2), (3, 5), (5, 8), (7, 11), (9, 14), (11, 17), (13, 20), (15, 23), (17, 26), (19, 29), (21, 32), (23, 35), (25, 38)
Therefore, we have 15 points counting the start and end points with integer coordinates