Answer:
4/9 for boys and 5/9 for girls
explanation:
there are 4 boys and 5 girls
so there are nine in total
if there are four boys and 9 in total then the fraction would be 4/9
and if there are 5 girls and 9 in total then the fraction would be 5/9
hope this helps and it plays Mark brainliest :D
What is the area of this rectangle?
2.5 m
2 m
Answer:
5
Step-by-step explanation:
A ball is drawn randomly from a jar that contains 7 red balls, 5 white balls, and 4 yellow ball. Find the probability of the given event.
Missing Part:
a. A red ball is drawn
b. A white ball is drawn
Answer:
a. [tex]P(Red) = 0.4375[/tex]
b. [tex]P(White) = 0.3125[/tex]
Step-by-step explanation:
Given
[tex]Red = 7[/tex]
[tex]White = 5[/tex]
[tex]Yellow = 4[/tex]
First, we need to calculate the total
[tex]Total = Red + White + Yellow[/tex]
[tex]Total = 7+5+4[/tex]
[tex]Total = 16[/tex]
Solving (a): Probability of Red.
This is calculated by dividing number of red balls by the total
So:
[tex]P(Red) = \frac{Red}{Total}[/tex]
[tex]P(Red) = \frac{7}{16}[/tex]
[tex]P(Red) = 0.4375[/tex]
Solving (a): Probability of White.
This is calculated by dividing number of white balls by the total
So:
[tex]P(White) = \frac{White}{Total}[/tex]
[tex]P(White) = \frac{5}{16}[/tex]
[tex]P(White) = 0.3125[/tex]
Amanda found a job that pays $450 per week. She must pay a fee to the employment agency of 15% of her first three week’s pay. How much does she need to pay the employment agency?
Answer:
192.5
Step-by-step explanation:
amount of money for one week = 450
amount of money for 3 weeks = 1350
15 percent of 1350 = 1350 x 15
= 19250
divide 19250 by 100
answer is 192.5
---------------------------------------------------------------------------
The radius of a sphere is 3 inches. Which represents the volume of the sphere?
O 121 Cubic inches
O 367 cubic inches
O 641 cubic inches
O 817 cubic inches
Answer: A.
Step-by-step explanation: The formula for the volume of a sphere is 4/3 x pi x radius cubed. The final answer is approx 121.1, which rounds down to 121. Brainliest plz
The option that represents the volume of the sphere given the radius is 113.04 in³.
What is the volume of the sphere?The volume of the sphere is the space occupied within the sphere.
Volume of a sphere = 4/3 x pi x r³
4/3 x (22/7) x 3³ = 113.04 in³
To learn more about the volume of a sphere, please check: https://brainly.com/question/13705125
rational number or an irrational number.
-√64
15 pi
46.86 repeated
15/19
-2√6
Need help!
Answer:
-√64: rational
15 pi: irrational
46.86 repeated: rational
15/19: rational
-2√6: irrational
Step-by-step explanation:
From the picture that I used, I was able to find out which ones were rational and irrational.
-√64: rational because it equals to -8
15 pi: has "pi" in it
46.86 repeated: as long as it's repeated, it's rational
15/19: fractions are usually rational
-2√6: √6 is cannot be rationalized
You need to solve a system of equations. You decide to use the elimination
method. Which of these is not allowed?
The step that is not allowed is (b) add the left side of equation 2 to the left side of equation 1
How to determine the disallowed step?The system of equations is given as:
2x - 3y = 12
-2x + y = 8
Adding the two equations would eliminate x.Multiplying the second equation by 3 and then subtracting the resulting equation from (1) would eliminate yThis means that the step that is not allowed is (b)
Read more about elimination method at:
https://brainly.com/question/12691830
#SPJ1
Use calculus to find the area A of the triangle with the given vertices.
(0, 0), (4, 1), (2,6)
The area A of the triangle with the given vertices is 13 square units
How to determine the area A of the triangle with the given vertices?The vertices are given as
(0, 0), (4, 1), (2,6)
The area is calculated as
Area = 1/2 * |Ax(By - Cy) + Bx(Ay - Cy) + Cx(Ay - By)|
So, we have
Area = 1/2 * |0 * (1 - 6) + 4 * (0 - 6) + 2 *(0 - 1)|
Evaluate the sum of products
So, we have
Area = 1/2 * |-26|
Remove the absolute bracket
Area = 1/2 * 26
Evaluate the products
Area = 13
Hence, the area A of the triangle with the given vertices is 13 square units
Read more about area at
https://brainly.com/question/22972014
#SPJ1
Anybody know the answer??
Answer:
The answer is 5
Step-by-step explanation:
2x+7=17
2x=10
x=5
If u have more questions just ask
Brainliest Please
Which number has a six that is ten times the value of the six in 1.67?
A. 1.96
B. 6.07
C. 5.36
D. 9.62
Answer:
B. 6.07
HAS A SIX THAT IS TEN TIMES THE VALUE OF THE SIX IN 1.67
My lunch
was $5.65. If this is
my change, how much did
give the cashier?
Answer:
im thinking either b or c im leaning towards b
Step-by-step explanation:
Can you please explain this?
Answer:
? = -2
Step-by-step explanation:
a + b = -2
so, now we need to find all (a + b) combinations in the large expression.
for example, we know
a = -2 - b
or b = -2 - a
and then
-b = 2 + a
but also
3b = -6 - 3a
so that
a - b = a + 2 + a = 2a + 2
therefore
(a + b)(a - b) = a² - b² = -2(2a + 2) = -4a - 4
(-4a - 4 - 12b - 36)/(-4a - 4 - 6a - 6b) =
(-4(a + 3b) - 40)/(-4a - 4 - 6(a + b)) =
(-4(a - 6 - 3a) - 40)/(-4a - 4 - 6×-2) =
(-4(-2a - 6) - 40)/(-4a + 8) =
(8a + 24 - 40)/(-4a + 8) = (8a - 16)/(-4a + 8) =
-2×(-4a + 8)/(-4a + 8) = -2
ΔABC and ΔJLK have two sets of congruent angles. Are these triangles congruent or not? How do you know?
Answer:
I think that yes they are, but I maybe wrong.
Step-by-step explanation:
I believe that this is true because of the Angle-Angle congruence theorem.
17 Billie deposited three paychecks, one was $435.20 , one was $ 510.20 and the third one was $ 345.12 plus $142 cash into her checking account Her original balance was $ 225.30. Assuming all the checks clear, how much will be in his checking account after the deposits are made?
Answer:
$1,657.82
Step-by-step explanation:
435.20 + 510.20 + 345.12 + 142 + 225.30 = total checking balance
1,657.82
Help me out on this question please
Answer:
[tex]your \: answer \: is \: option \: a[/tex]
I am sure about this answer.
Step-by-step explanation:
2/3 and 5/12
hope it helps..
pls mark as brainliest
7n-15=41 What is the answer for n I will give you branlist
Answer:
n= -5
Step-by-step explanation:
Joy got a gift card for $10.25. Evelynne got a gift card that was 3 times the amount of Joy. Kaitlyn got a gift card for $1.50 more than Evelynne. How much was Kaitlyn’s gift card?
Raul received a score of 80 on a history test for which the class mean was 70 with standard deviation 10. He received a score of 75 on a biology test for which the class mean was 70 with standard deviation 2.5. On which test did he do better relative to the rest of the class?
Answer:
Raul performed better in the biology test
Step-by-step explanation:
Given
History
[tex]Score = 80[/tex]
[tex]Mean = 70[/tex]
[tex]Standard\ Deviation = 10[/tex]
Biology
[tex]Score = 75[/tex]
[tex]Mean = 70[/tex]
[tex]Standard\ Deviation = 2.5[/tex]
Required
Where did he perform better relative to other students
To do this, we simply calculate the z score in both tests and make comparison.
z score is calculated as thus;
[tex]z = \frac{x - Mean}{SD}[/tex]
For history;
[tex]z = \frac{80 - 70}{10}[/tex]
[tex]z = \frac{10}{10}[/tex]
[tex]z = 1[/tex]
For biology;
[tex]z = \frac{75 - 70}{2.5}[/tex]
[tex]z = \frac{5}{2.5}[/tex]
[tex]z = 2[/tex]
Since the z score in the biology test is greater than that of the history test, then he performed better in the biology test
Adrian was using a recipe for a large pie that required one-fourth of a tablespoon of sugar . Instead of making one large pie , Adrian decided to use the recipe to make 2 small pies . How much sugar should he use each of the 2 small pies ?
A. 1/3 of a tablespoon
B. 1/4 of a tablespoon
C. 1/8 of a tablespoon
D. 1/2 of a tablespoon
Answer:
probably B.
Step-by-step explanation:
if he just halves the recipe, then it would still be 1/4 tablespoon because he is making 2 pies.
By rounding to 1 significant figure, estimate the answers to these questions:
a) 687 × 164
b) 476 × 2354
c) 8612 × 1497
The rounding of the numbers to 1 significant figure are-
a) 687 × 164 = 140000
b) 476 × 2354 = 1000000
c) 8612 × 1497 = 9000000.
What is defined as the significant figure?The term significant figures describes the number of significant single digits (0 to several 9 inclusive) in a scientific notation coefficient. The number of significant figures inside an expression indicates the degree of certainty or precision with where an engineer or scientist states a number.All zeros to the right of the decimals but to the left of a non-zero number in a decimal number between 0 and 1 are not significant. 0.00247, for example, only has three significant figures.a) 687×164
This number can be written in form of rounding to 1 significant figure as;
700 × 200 = 140000
b) 476×2354
As, the number can be written in form of rounding to 1 significant figure as;
500 × 2000=1000000
c) 8612×1497
These number can be written in form of rounding to 1 significant figure as;
9000×1000=9000000
To know more about the significant figure, here
https://brainly.com/question/293578
#SPJ9
NEED HELPPP!!!! 20 POINTS WILL BE GIVEN..
Answer:
B.
Step-by-step explanation:
Triangle ABC ~ Triangle DEF. Find the length of median FQ. Show how to solve. 25 points
The length of the median FQ in image of the two similar triangles is: 36.
How to Find the Median of Similar Triangles?The corresponding segments and median of similar triangles are proportional, therefore, we will have the following:
PC/FQ = PB/QE
Substitute
27/FQ = 18/24
FQ = (24 × 27)/18
FQ = 36.
Learn more about similar triangles on:
https://brainly.com/question/2644832
#SPJ1
Choose the correct answer.
Conjunctions that connect words, phrases, or clauses that are similar are called __________ conjunctions.
A) subordinate
B) correlative
C) coordinating
PLS HELP!
Answer:
A) Subordinate
Step-by-step explanation:
it could help
PLEASE HELP ASAP. THANK YOU
Answer:
i think it is 15 for x
and i think it's 10 for y
Step-by-step explanation:
tell me if i'm wrong
Find the complement of the set given that U = {x | x is in I and −3 ≤ x ≤ 9}.
{x | x is in I and −2 ≤ x < 5}
Answer:
Step-by-step explanation:
hello :
the complement of the set given that U = {x | x is in I and −3 ≤ x ≤ 9}is :
F = {x | x is in I and x <-3 or 9 < x}
same method for :{x | x is in I and −2 ≤ x < 5}
H={x | x is in I and x <-2 or 5 ≤ x}
The Cost Saver Grocery Club sells sheet cakes. Each 1/8 sheet of cake requires 0.65 teaspoon of baking soda.
How much baking soda is needed for a full sheet cake? Show your work
The amount of baking soda needed for a full sheet cake is 5.20 teaspoons.
How many baking soda is needed?
A fraction is a non-integer that is made up of a numerator and a denominator that is separated by a horizontal line. The numerator is the number above the horizontal line and the denominator is the number below the horizontal line. An example of a fraction is 1/8.
In order to determine how much baking soda is needed for a full sheet cake, multiply the amount that is needed for 1/8 of the sheet cake by 8. Multiplication is the mathematical operation that is used to determine the product of two or more numbers.
Baking soda needed for a full sheet cake = 8 x 0.65 = 5.2 tablespoons
To learn more about multiplication of fractions, please check: https://brainly.com/question/1114498
#SPJ1
Find an equation of the tangent line to the graph of
y = g(x) at x = 3 if g(3) = −6 and g'(3) = 4.
(Enter your answer as an equation in terms of y and x.)
The line tangent to g(x) at x = 3 is:
y = 4*x - 18
How to find the equation of the tangent line?
If we have a function y = f(x), the slope of the line tangent at the point x = a is given by f'(a).
In this case, we know that g'(3) = 4, so the slope of the line is 4.
Then the line is something like:
y = 4*x + b
To find the value of b we use the fact that this line must pass through the point (3, g(3))
And we know that g(3) = -6
Then this line must pass through the point (3, -6), replacing that we get:
-6 = 4*3 + b
-6 = 12 + b
-6 - 12 = b = -18
Then the tangent line is:
y = 4*x - 18
If you want to learn more about tangent lines:
https://brainly.com/question/9636512
#SPJ1
Square root 8 natural number
Answer:
it's Not a perfect square because 3.9x2.9 is 8.41 which means it isn't a perfect square
where would -10 appear on a number line
Answer:
negatives to the left of 0, positives to the right of 0.
⚠️NEED HELP ASPA⚠️
Determine whether each pair of triangles is similar. Justify your answer.
Right triangle PQR is shown on the graph below. If the point (x, 7) lies on the line that goes through side of the trianglethen what should be the value of x?
A. -2
B. 5
C. -3
D. 3
Answer:
C. -3
Step-by-step explanation:
First, find the slope of side QR. Calculate the slope by finding the ratio of the difference between the y-coordinates and the difference between the x-coordinates of points Q and R.
The slope of side QR can be found as shown below.
Now, using the slope of side QR, draw a triangle RST similar to the right triangle PQR with S(x, 7) as one vertex.
Next, find the value of x as shown below.
Therefore, the value of x in the point (x, 7) is -3.