Answer:
a. 7 ( 5 x + 7 y )
b.7 ( 11 x − 8 y )
Step-by-step explanation:
im pretty sure that this is correct and hope it helps!
A chocolate chip recipe uses 0.2 pounds of chocolate chips per batch. How many batches can be made with 3 pounds of chocolate chips?
x + y = -5
x - y = -7
Answer:
The First one x + y = -5 the x would be -4 and the y would be -1 and for the Second one x - y = 7 The x would be -8 or -9 and the y would be -1 or -2
Step-by-step explanation:
Hope this helps you. :) For the second one -9 - -2 = -7 and -8 - -1 =7 so either one could work.
What is the length of side BC of the triangle?
Answer:
28
Step-by-step explanation:
Graph the inequality
y > -3x + 3
Answer:
see attachment
Step-by-step explanation:
Solve 3x-4y=18,9x+2y=12
Find the point of intersection of the lines x-3 = 0 and y-5 = 0.
Answer:
x = 3 and y = 5
Step-by-step explanation:
Given equations are :
x-3 = 0 ....(1)
y-5 = 0 ....(2)
We need to find the point of intersection of the lines.
Add 3 both sides in equation (1).
x-3+3=3
x = 3
Now, add 5 to both sides of the equation.
y-5+5=0+5
y = 5
Hence, the required point of intersection of the lines is x = 3 and y = 5.
where do i put the points? PLS HELP ASAP!
(15 points)
The sum of Ken's, k, and Alan's, a, ages is 62. Ken is 31 years older than Alan.
Which of these systems of equations below best describes the ages of Ken and
Alan?
Answer:
k + a = 62
k = 31 + a
Step-by-step explanation:
Given that:
Sum of ken and Alan's age = 62
Ken is 31 years older than Alan
k + a = 62 - - - (1)
k = 31 + a - - - (2)
Hence, the system of equation which best describes the ages of Ken and Alan are:
k + a = 62
k = 31 + a
write the algebraic expression for: The length of a rectangle is 3 feet less than 4 times its width.
Answer:
Perimeter (P) is: 48
Problem to solve:
48=2(2x+3)+2(x)
48=4x+6+2x
48=6x+6
48-6=6x+6-6
42=6x
42/6=6x/6
7=x
Step-by-step explanation:
The length of a rectangle is 3 more than twice its width. The perimeter is 48 feet. Find the width. Hint: You did this in Module 3 Assignment 5. Now you have to write the equation and solve it.
a. 16
highlight%28b%29. 7
c. 8
d. 21
e. 24
:
Formula for the perimeter of a rectangle is: highlight%28P=2L%2B2W%29, P is perimeter, L is length, W is width.
Let Width (W) be:x
Then length (L)is: 2x+3
At what rate is a car traveling, if it goes 157.5 miles in 2.5 hours?
a. 393.75 miles per hour
b. 15 miles per hour
c. 63 miles per hour
d. 73 miles per hour
Answer:
63
Step-by-step explanation:
If Brenda has 10 math problems to solve and she can solve one math problem per minute how long will it take her to solve all 10 problems
Answer:she will take 10 minutes
Step-by-step explanation:
Answer:10 minutes
Step-by-step explanation: 10x10
It takes 1 minute to solve each question so 10 questions would mean it took ten minutes.
Let me know if that helps :)
The area of a carpet is 18sqcm and breath is 3cm find its length
Answer:
6
Step-by-step explanation:
area of carpet =18
the formula to calculate the area of carpet is l×b so.
l×b=18
l×3=18
3l =18
l=18/3
L=6
if the probability of arriving late to school is 4/8 what is the probability that the complement or opposite event occurrs?
(Answer in fraction form)
Step-by-step explanation:
probability of arriving late is 4/8
probability of arriving early is
1-4/8 =4/8
probability that opposite event occurs is 4/8
Professor Rogers has found that the grades on the nursing final exam are normally distributed with a mean of 64 and standard deviation of 11. a) If the passing grade is 54, what percent of the class will fail
Answer:
18.165%
Step-by-step explanation:
We solve this question using z score formula
z = (x-μ)/σ
From the Question above , we are asked to find the percent of the class that will fail if the passing grade is 54.
The percent of the class that would fail is the percent of the class that has a grade less than(<) 54
Hence,
x is the raw score = 54
μ is the population mean = 64
σ is the population standard deviation = 11
For x < 11
z = 54 - 64/11
z = -0.90909
Probability value from Z-Table:
P(x<54) = 0.18165
Converting to percentage
= 0.18165 × 100
= 18.165%
Therefore, If the passing grade is 54, the percent of the class that will fail is 18.165%
Help solve for X
Please ignore the other scribbles in pencil.
Thanks
Answer:
x = 5
Step-by-step explanation:
[tex] \frac{14.8}{x} + 2.4 = 5.36 \\ \\ \frac{14.8}{x} = 5.36 - 2.4 \\ \\ \frac{14.8}{x} = 2.96 \\ \\ 14.8 = 2.96x \\ \\ x = \frac{14.8}{2.96} \\ \\ x = 5[/tex]
3/4(x + 3) = 9
How do I solve this
Answer:
x = 10
Step-by-step explanation:
so first distribute the 3/4 to everything on the inside
3/4x + 1 1/2 = 9
now subtract 1 1/2 on both sides
3/4x = 7 1/2
Now divide both sides by 3/4
x = 7 1/2 divided by 3/4
x = 15/2 divided by 3/4
x = 15/2 times 4/3
x = 5/1 times 2/1
x = 10
A bag has 5 balls: 1 red (R), 1 green (G), 1 yellow (Y), 1 blue (B), and 1 orange
(0)
You randomly choose a ball. What is the sample space?
OA. (RG, Y, B, O)
OB. (R,G, Y, B, P)
Oc. (G, )
OD. (R, G, Y, B)
Answer: R,G,Y,B,O
Step-by-step explanation: Sample space is just any and all possible outcomes
The sample space of the given experiment is (R,G, Y, B, O). So option A is the correct one.
What is a Sample Space?A sample space is a set of all the possible outcomes in a random experiment. It is usually denoted by the letter, S.
The subset of the sample space are events.
Given experiment is that you randomly choose a ball from a bag which consists of 5 balls.
Balls are 1 red (R), 1 green (G), 1 yellow (Y), 1 blue (B), and 1 orange (O).
Each ball is of different color.
When you randomly choose a ball, the chosen ball can be any of the colors given.
So sample space = (R,G, Y, B, O)
Hence the required sample space is (R,G, Y, B, O).
Learn more about Sample Space here :
https://brainly.com/question/30206035
#SPJ7
A women is twice as old as her daughter . twenty one years ago she was three times her daughter . What is the women's present age?
Answer:
84
Step-by-step explanation:
women=x
daughter=y.
x=2y.
x-21=3(y-21).
2y-21=3y-63.
42=y.
x=84.
Hope this helps plz hit the crown :D
Answer:
Daughter's present age = 42 years
Women's present age = 84 years
Step-by-step explanation:
Daughter's present age = x years
Women's present age = 2*x = 2x
21 years ago:
Daughter's age = x - 21
Women's age = 2x - 21
Women's age = 3*daughter'sage
2x - 21 = 3*(x - 21)
2x - 21 = 3x - 63 {Subtract '2x' from both sides}
- 21 = 3x - 2x - 63
-21 = x - 63 {Add 63 to both sides}
-21 +63 = x
42 = x
Daughter's present age = 42 years
Women's present age = 2*42 = 84 years
What is the value of e/3
Does 100cm equal 1m
Answer:
True
100cm = 1m ✔️
Step-by-step explanation:
The cm (centimeters) has the key word unit cent in it, which means 100. Like how a century is 100 years, 100 cents are in a dollar, there is 100 percent in 1 whole number, etc.
Based on background knowledge (or from searching it up too), every meter has a hundred centimeters, since the unit cent means 100.
Hence,
100 centimeters does equal 1 meter
Mrs. Darby would like to determine if the cafeteria should sell snacks during non lunch periods.
PLZZZ HURRY
A sample with a sample proportion of 0.4 and which of the following sizes
will produce the widest 95% confidence interval when estimating the
population parameter?
A. 90
B. 60
C. 75
D. 120
The size 60 will produce the widest 95% confidence interval when estimating the population parameter.
What is confidence interval?'A confidence interval is the mean of your estimate plus and minus the variation in that estimate.'
According to the given problem,
IN a sample with n number of people surveyed with a probability of a success of [tex]\pi[/tex] and a confidence level of 1-α , we have the following confidence interval of proportions.
[tex]\pi[/tex] ± [tex]z\sqrt{\frac{\pi (1-\pi )}{n} }[/tex]
In which, z is the z score that has a p value of 1 -(α/2)
The margin of error is:
M = z [tex]\sqrt{\frac{\pi (1-\pi )}{n} }[/tex]
The higher the margin of error, the wider an interval is.
As the sample size increases, the margin of error decreases. If we want, the widest possible interval, we should select the smallest possible confidence interval.
Hence, we can conclude that 60 is the correct answer.
Learn more about confidence interval here:
https://brainly.com/question/24131141
#SPJ2
A restaurant gets an average of 5.3 complaints per day from its patrons. Use the Poisson distribution formula to find the probability that on a given day the restaurant will receive
Question: A restaurant gets an average of 5.3 complaints per day from its patrons. Use the Poisson distribution formula to find the probability that on a given day the restaurant will receive exactly 4 complaints
Answer:
[tex]P(X=4) = 0.164125[/tex]
Step-by-step explanation:
Given
[tex]\bar{x} = 5.3[/tex] -- average
Required
Determine the probability of receiving 4 complaints in a day
Since, it follows a poisson distribution, the probability is calculated as:
[tex]P(X=x) = \frac{\bar{x}^x * e^{-\bar{x}}}{x!}[/tex]
In this case:
[tex]x = 4[/tex]
So, we have:
[tex]P(X=4) = \frac{5.3^4 * e^{-5.3}}{4!}[/tex]
[tex]P(X=4) = \frac{789.0481 * 0.004992}{4*3*2*1}[/tex]
[tex]P(X=4) = \frac{3.939}{24}[/tex]
[tex]P(X=4) = 0.164125[/tex]
Hence, the probability of exactly 4 complaints is 0.164125 .
7. What is the slope of the line that passes through the pair of points (2, 5) and (8, 3)?
A. 1/3
B. -1/3
C. 3
D.-3
Answer:
c
Step-by-step explanation:
Annie measures 9 teaspoons of lemon juice for a recipe. There are approximately 4.9 milliliters in one teaspoon. How many milliliters of lemon juice did Annie measure?
Answer:
44.1 milliliters of lemon juice
Step-by-step explanation:
Number of teaspoons of lemon juice = 9 teaspoons
Amount of milliliters in one teaspoon = 4.9 milliliters
Amount of lemon juice = Number of teaspoons × Amount of milliliters
= 9 × 4.9
= 44.1 milliliters
Find x in the following triangle
Answer:
hope it helps, twanks you (owo)
Step-by-step explanation:
Solving for X in a Right Triangle
Subtract the sum of the two angles from 180 degrees. The sum of all the angles of a triangle always equals 180 degrees. Write down the difference you found when subtracting the sum of the two angles from 180 degrees. This is the value of X
The areas of two similar triangles are 18cm^2 and 8cm^2. One of the sides of the first triangle is 4.5cm. What is the length of the corresponding side of the other triangle? Please answer ASAP!!! Thank you!!!
Answer:
3 cmStep-by-step explanation:
The area is the product of two dimensions, therefore the scale factor is:
A/A' = (b*r*h*r)/(b*h) = r²r² = 18/8r = √9/4 = 3/2 = 1.5The length of the corresponding side will be:
a/a' = ra' = a/ra' = 4.5 / 1.5 a' = 3 cmPlease help me thanks so much?!?!
Answer:
200
Step-by-step explanation:
first convert 1 l to ml = 1000 ml
1000 divided by 5 spoons = 200
Complete the ratio table.
Answer:
63, 946
Step-by-step explanation:
The circumference of a circle can be found using the equation 2rpi.
I like to think of this as Dpi with D being the diameter since 2r is equal to D.
42 times 3.14 is roughly 132. x times 3.14 is 198, meaning 198 divided by 3.14 is roughly 63. 301 times 3.14 is roughly 946.
I'll mark you brainiest ---- find the range of possible values for the third side of a triangle if given two side lengths. 9yd, 32yd
Answer:
The third side of the triangle must have a length between 23 yd and 41 yd.
Step-by-step explanation:
Triangle Inequality Theorem
Let y and z be two of the side lengths of a triangle. The length of the third side x cannot be any number. It must satisfy all the following restrictions:
x + y > z
x + z > y
y + z > x
Combining the above inequalities, and provided y>z, the third size must satisfy:
y - z < x < y + z
We have to side lengths: y=32 yd and z = 9 yd, thus the range of possible values for the third side x is:
32 - 9 < x < 32 + 9
23 < x < 41
The third side of the triangle must have a length between 23 yd and 41 yd.
