Answer:
1/4 or 25%Step-by-step explanation:
Experimental probability:
Pe = number of event occurred / number of attemptsProbability of yellow:
Pe(yellow) = 10/40 = 1/4 = 25%The following figure is made of a square and a rectangle.
4 cm
4 cm
7
10 cm
What is the perimeter of the figure?
cm
A roofing contractor buys 30 bundles of shingles and 4
rolls of roofing paper for $1040.
In a second purchase (at the same prices), the
contractor buys 12 bundles of shingles and 16 rolls of
roofing paper for $2000.
Create and solve a system of equations in order to
determine how much each bundle of shingles (x) and
roll of roofing paper (y) would cost
Answer:
Cost of one bundle of shingles is $20 and cost of one roll of roofing paper is $110.
Step-by-step explanation:
Let the cost of each bundle of shingles = x
And cost of the roofing paper = y
Contractor buys 30 bundles of shingles and 4 rolls of roofing paper for $1040.
30x + 4y = 1040
15x + 2y = 520 -----(1)
In a second purchase contractor buys 12 bundles of shingles and 16 rolls of roofing paper for $2000
12x + 16y = 2000
3x + 4y = 500 --- (2)
Equation (1) multiplied by 2 then subtracted from equation (2)
(3x + 4y) - 2(15x + 2y) = 500 - 1040
(3x - 30x) + (4y - 4y) = -540
-27x = -540
x = 20
From equation (1)
15(20) + 2y = 520
300 + 2y = 520
2y = 220
y = 110
Therefore, cost of one bundle of shingles is $20 and cost of one roll of roofing paper is $110.
If you borrow $675 for six years at an interest rate of 10% how much total will you pay back?
if f(x)=5x-7,what isf(3)?
Answer:
Explanation:
f ( − 3 ) basically means substitute − 3 for x in the function − 5 x
f
(
−
3
)
=
−
5
(
−
3
)
−
7
f
(
−
3
)
=
15
−
7
f
(
−
3
)
=8
Step-by-step explanation:
What does 3 to the power of 2 minus 4 times 2 plus 6
Answer:
7 is the answer
Step-by-step explanation:
Answer:
This equals 7
Step-by-step explanation:
I used a calculator
Can I have brainliest pls
Investigate the patern “13/1 family” of fractions. Use plenty of space to show what you find.
Answer:
2/1 of a family
Step-by-step explanation:
Select the correct answer,
Annette wants to find out which of two toothpaste brands people living in the town of Springville prefer, brand A or brand B. She uses a random
sample to make this generalization: 60% of the population of Springville prefers brand A over brand B. For which random sample would this
generalization be valid?
OA. every third person who walks into one of the neighborhood convenience stores, which stocks several toothpaste brands
OB. every fourth student who attends Annette's school in Springville
OC. every other customer at all the convenience stores in Springville that stock both brand A and brand B
OD. every mother who shops at a convenience store in Springville
Reset
Next
Answer:
C.)
Step-by-step explanation:
every other customer at all the convenience stores in Springville that stock both brand A and brand B
Which one was the answer A,B,C or D?
Answer:
A
Step-by-step explanation:
what is 15x÷8 when x=6
Answer:
45/4
Step-by-step explanation:
15x/8
15(6)/8
90/8
simplify
45/4
Please help solve!
g(x) = 4x + 3
f(x) = 3x-4
Find (g o f)(5)
Answer:
(g o f)(5) = 47
Step-by-step explanation:
We are given a composite function:
g(x) = 4x + 3
f(x) = 3x - 4
We are supposed to find (g o f)(5), which really means g( f(x) ). So, we put the function of f(x) for every x in g(x), like this:
g(x) = 4x + 3
g( f(x) ) = 4(3x - 4) + 3
g( f(x) ) = 12x - 16 + 3
g( f(x) ) = 12x - 13
Now, we also need to evaluate for x = 5, like this:
g( f(5) ) = 12(5) - 13
g( f(5) ) = 47
The stem-and-leaf plot shows the amount of money each student in Spanish club collected for charity this semester. How many
male students are represented in the stem-and-leaf plot?
A)
14
B)
26
40
D)
72
Its 72 I hope it helped.
Helps, is it 64 111 or 90?
Answer:
111
Step-by-step explanation:
find the product (ab-3)^2
Answer:
a^2b^2 -6ab + 9
Step-by-step explanation:
Use similar triangles to solve for the missing lengths below.
If you know how to work this out please help:)
Answer:
x = 14
y = 18
Step-by-step explanation:
By the property of similar triangles,
If two triangles are similar their corresponding sides will be proportional.
[tex]\frac{AB}{EF}= \frac{AC}{GE}[/tex]
[tex]\frac{5}{10}=\frac{7}{x}[/tex]
x = [tex]\frac{70}{5}[/tex]
x = 14
Similarly, [tex]\frac{AB}{EF}= \frac{CB}{GF}[/tex]
[tex]\frac{5}{10}=\frac{9}{y}[/tex]
y = [tex]\frac{90}{5}[/tex]
y = 18
Help w number 6 pls!
Answer:
Y is 66 and x is 48Step-by-step explanation:
So, if u put together x and y, it'll make 48 because
the arranged two numbers will go to 9.
So, that's it! :)Six Sigma is comprehensive approach to quality goal setting that involves statistics. An article in Aircraft Engineering and Aerospace Technology (Vol. 76, No. 6, 2004) demonstrate the use of the normal distribution in Six Sigma goal setting at Motorola Corporation. Motorola discovered that the average defect rate for parts produced on an assembly line varies from run-to-run and is approximately normally distributed with a mean equal to 3 defects per million. Assume that the goal at Motorola is for the average defect rate to vary no more than 1.5 standard deviations above or below the mean of 3. How like is it that the goal will be met?
Answer:
0.8664 = 86.64% probability that the goal will be met.
Step-by-step explanation:
Normal Probability Distribution:
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 z-score 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 p-value, we get the probability that the value of the measure is greater than X.
Assume that the goal at Motorola is for the average defect rate to vary no more than 1.5 standard deviations above or below the mean of 3. How like is it that the goal will be met?
It should be within 1.5 standard deviations of the mean, which means that the probability is the pvalue of Z = 1.5 subtracted by the pvalue of Z = -1.5.
Z = 1.5 has a pvalue of 0.9332
Z = -1.5 has a pvalue of 0.0668
0.9332 - 0.0668 = 0.8664
0.8664 = 86.64% probability that the goal will be met.
find the length of AD. HELP MEEEE
Answer:
5.42
Step-by-step explanation:
hope this helped!! :)
5x-3 < 22 help plssssss
Answer: x=25/5
Step-by-step explanation:
Answer:
x<5
Step-by-step explanation:
add 3 to both sides to get 5x alone
so 5x<25, divide by 5 to get x alone
Julie's grades for this term test are 85,88,97. What is her average?
Please give an explanation.
Answer:
90
Step-by-step explanation:
The average of a set of numbers is the sum of the numbers, divided by the count of the numbers.
Thus, the average of 85, 88 and 97 is
85 + 88 + 97
------------------- = 270/3, or 90
3
Answer:
90
Step-by-step explanation:
Find the value of x in the triangle shown below
X=?
Answer:
you can use :
cos(X) = ( 5^2 + 6.9^2-5^2) / (2*5*6.9)
use caculator shift cos of this
I need help
Can you help me please!!!
Answer:
Step-by-step explanation:
The triangles are similar.
x/(x+4) = 7.2/12
x/(x+4) = 0.6
x = 0.6(x+4)
0.4x + 2.4
x = 6
Find the area of the shape shown below.
Answer: 4, 800
Step-by-step explanation:
Divide. round your answer to the nearest hundredth 89.881.57÷5
Answer:
1797631.4
Step-by-step explanation:
yeh
Find the lateral surface area of the figure below. Round the the nearest tenths place.
help please !
un comerciante vende un artículo en $196 y obtiene como telera con tanto porciento igual al precio del costo del artículo Hallar el costo del artículo
Answer:
$196 es el precio del articulo
Identify each pair of angles as corresponding, Alternate interior, alternate exterior, or consecutive interior and solve for X
Answer:
Step-by-step explanation:
19). Angles measuring 90° and (21x + 6)° are Alternate exterior angles.
Therefore, 21x + 6 = 90
2x = 90 - 6
2x = 84
x = 42
21). Angles measuring 60° and (8x - 4)° are Alternate interior angles,
8x - 4 = 60
8x = 60 + 4
x = [tex]\frac{64}{8}[/tex]
x = 8
23). Since, angles measuring (-1 + 14x)° and (12x + 17)° are Alternate exterior angles
Therefore, (-1 + 14x) = (12x + 17)
14x - 12x = 17 + 1
2x = 18
x = 9
25). Both the angles (x + 96)° and (x + 96)° are consecutive interior angles.
Therefore, (x + 96)° + (x + 96)° = 180° [Property of consecutive interior angles]
2x + 192 = 180
2x = 180 - 192
2x = -12
x = -6
Now measure of (x + 96)° = -6 + 96
= 90°
26). Both the angles (20x + 5)° and (24x - 1)° are consecutive interior angles.
Therefore, (20x + 5)° + (24x - 1)° = 180°
44x + 4 = 180
44x = 176
x = 4
HELP I HAVE A TEST TOMORROW!!! Two of the angles in a triangle measure 19° and 83°. What is the measure of the third angle?
Answer:
78
Step-by-step explanation:
19 + 83+ x = 180
102 + x = 180 - 102
x= 78
Solve for x. −7≥13−5x Enter your answer as an inequality
Answer:
x (is greater than or equal to) 4
Step-by-step explanation:
i hope this helps :)
There are 20 pieces of fruit in a basket and 12 of them are oranges. What percentage of the pieces of fruit in the basket are oranges? Show your work in the box and circle your answer
Answer:60 percent
Step-by-step explanation: You have fraction the two numbers which will be 12/20 them you times it by 100 which equals 60 oranges.
whats 56787577765445789990 times 3695669870
Answer:
2.0986814e+29
Step-by-step explanation:
Answer:
what
Step-by-step explanation:
punch your calculator to find out
even the calculator might not give u the exact value