Answer:
62.9 lbs
Step-by-step explanation:
20 34
37 x
20x = 1258
x = 62.9
Answer:
[tex]\boxed {\boxed {\sf 62.9 \ pounds}}[/tex]
Step-by-step explanation:
Let's create a proportion using this setup:
[tex]\frac{books}{weight}=\frac{books}{weight}[/tex]
We know that 20 books weight 37 pounds. We don't what 34 books weigh, so the weight is x pounds.
[tex]\frac{20 \ books}{37 \ pounds}=\frac{34 \ books}{x \ pounds}[/tex]
[tex]\frac{20}{37}=\frac{34}{x}[/tex]
Cross multiply. Multiply the first numerator by the second denominator. Then, the first denominator and second numerator.
[tex]20*x=37*34\\20x=1258[/tex]
Since we are solving for x, we have to isolate the variable. It is being multiplied and the inverse of multiplication is division. Divide both sides by 20.
[tex]20x/20=1258/20 \\x= 1258/20 \\x=62.9[/tex]
34 books weigh 62.9 pounds.
Factor the polynomial as much as possible 25x^4-16y^14
Answer:
(4y7+5x2)(−4y7+5x2)
Step-by-step explanation:
please help me please i really need help please
Answer:
this is very hard, I do not understand such math, I don't know
Answer:
A
Step-by-step explanation:
We are adding together, so b and d can't be the answer. Fran has 2 fewer hats than elena , so Fran cannot be h or else she would have more hats.
So, a would have to be the answer.
Change x+2y=-6 into y=mx+b form
Answer:
y = -3 - x/2
Step-by-step explanation:
x + 2y = -6
You have to isolate y by minusing x on both sides
2y = -6 - x
Then you will isolate y by dividing both sides by 2
y = -3 - x/2
Please help WORTH 20 POINTS the highlighted one is wrong
Answer:
the answer is b
Step-by-step explanation:
50 points! Please help fast I need this done ASAP!!! Only answer if you know it. Random answers will be reported!
When a virus is placed on a tobacco leaf, small lesions appear on the leaf. To compare the mean number of lesions produced by two different strains of virus, one strain is applied to half of each of 8 tobacco leaves, and the other strain is applied to the other half of each leaf. The strain that goes on the right half of the leaf is decided by a coin flip. The lesions that appear on each half are then counted. The data are given below:
Leaf Strian 1 Strain 2
1 31 18
2 20 17
3 18 14
4 17 11
5 9 10
6 8 7
7 10 5
8 7 6
What is the number of degrees of freedom associated with the apropriate t-test for testing to see if there is a difference between the mean number of lesions per leaf produced by the two strains?
a. 7.
b. 8.
c. 11.
d. 14.
e, 16.
Answer: a. 7
Step-by-step explanation: Degrees of Freedom is the number of values "allowed" to vary. For example:
In the experiment above, the sample has 8 tobacco leaves. Two strains will be applied to each leaf. The decision of which strain goes to the right or left is random. Each strain have 7 possible leaves it can be applied, because, for the last, the eight leaf, there is no choice.
Therefore, the degrees of freedom for this experiment is 7.
It can also be calculated as
df = n - 1
df = 8 - 1
df = 7
Solve p
0.6p+4.5=22.5
I need an answer before 11:59 pm
two families that live 270 mi apart plan to meet at a park located between their two homes.both leave at 9:00 am but one family averages 12 mph faster than the other family.
if the families meet at the designated spot 2 and half hours later, determine the average rate of speed for each family
Answer:
Family 1 average rate of speed was 66 miles per hour, while Family 2 average rate of speed was 54 miles per hour.
Step-by-step explanation:
Since two families that live 270 mi apart plan to meet at a park located between their two homes, and both leave at 9:00 am but one family averages 12 mph faster than the other family, if the families meet at the designated spot 2 and half hours later, to determine the average rate of speed for each family, the following calculation must be performed:
Family 1: ((270/2) + (12 x 2.5)) / 2.5
Family 1: (135 + 30) / 2.5
Family 1: 165 / 2.5
Family 1: 66 miles per hour
Family 2: (270/2) / 2.5
Family 2: 135 / 2.5
Family 2: 54 miles per hour
In this exercise we have to use the knowledge of speed to calculate the speed each family achieves, thus we find that:
Family 1 the average rate of speed for each family is 66 miles per hour.Family 2 the average rate of speed for each family is 54 miles per hour
Since two families that live 270 mi apart plan to meet at a park located between their two homes, and both leave at 9:00 am but one family averages 12 mph faster than the other family, if the families meet at the designated spot 2 and half hours later, to determine the average rate of speed for each family, the following calculation must be performed:
So looking at family 1 we found that:
[tex]F_1:\frac{ ((\frac{270}{2.5})+(12*2.5))}{2.5} \\F_1: \frac{(135 + 30)}{2.5}\\F_1: \frac{165}{2.5}\\F_1: 66 \ miles \ per \ hour[/tex]
So looking at family 2 we found that:
[tex]F_2: \frac{(\frac{270}{2})}{2.5}\\F_2: \frac{135}{2.5}\\F_2: 54 \ miles \ per \ hour[/tex]
See more about speed at brainly.com/question/7359669
Simplify by dividing (-3/8) -5/9
Answer:
[tex]\frac{-27}{40}[/tex]
Step-by-step explanation:
[tex](\frac{-3}{8})[/tex]÷[tex]\frac{5}{9}[/tex]
[tex]\frac{-3}{8}[/tex]×[tex]\frac{9}{5}[/tex]
[tex]\frac{-27}{40}[/tex]
PLEASE HELP! 46 POINTS (hopefully you can answer it now)
Answer:
I think it might be the third one
Step-by-step explanation:
not totally sure tho
What is the LCD of 2/6 and 2/15? pleeease heeeellpppp
Answer:
the LCM is 30
Step-by-step explanation:
6x5=30
15x2=30
Answer:2/6=10/30
2/15=4/30
Step-by-step explanation:
WILL GIVE BRAINLIEST!
What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 6.5? (5 points)
A rectangle is shown. The length of the rectangle is labeled as 8 cm, and the width is labeled as 6 cm.
Group of answer choices
Perimeter = 54 cm, area = 181.25 cm2
Perimeter = 54 cm, area = 2,028 cm2
Perimeter = 182 cm, area = 2,028 cm2
Perimeter = 182 cm, area = 181.25 cm2
Answer:
Perimeter 182 cm, area= 2,028 cm2
Step-by-step explanation:
The perimeter of the given rectangle is
2(6 cm + 8 cm) = 28 cm
The area of the given rectangle is
(6 cm)*(8 cm) = 48 cm^2
The larger rectangle will have a perimeter of
6.5*28 cm = 182 cm
The larger rectangle will have an area of
6.5^2*48 cm^2 = 2028 cm^2 . . . . . note the scale factor is squared for area
The appropriate choice is the 3rd one, ...
Perimeter = 182 cm, area = 2,028 cm^2
Answer: Perimeter = 182 cm, area = 2,028 cm2 3rd one
Step-by-step explanation:
Consider the following data. Click on the datafile logo to reference the data.
14 21 23 21 16 19 22 25 16 16 24 24 25 19 16 19 18 19 21 12 16
17 18 23 25
20 23 16 20 19
24 26 15 22 24
20 22 24 22 20
Summarize the data by filling in the frequency (to the nearest whole number), the relative frequency (3 decimals), and the percent frequency (1 decimal) values below.
Class Frequency Relative Frequency Percent Frequency 12-14 % 15-17 % 18-20 % 21-23 % 24-26 % (Total) %
Answer:
[tex]\begin{array}{cccc}{Class} & {Frequency} & {Relative Frequency} &{Percent\ Frequency}\ \\ {12-14} & {2} & {0.05} & {5\%}& {15-17} & {8} & {0.200}&{20\%}& {18-20} & {11} & {0.275} & {27.5\%}& {21-23} & {10} & {0.250} &{25\%}& {24-26} & {9} & {0.225}&{22.5\%} & {Total} & {40} & {1} & {100\%}\ \end{array}[/tex]
Step-by-step explanation:
Required
Complete the table.
First, group the data according to the class.
So, we have:
12-14:- 14 12 --- Frequency is 2
15 - 17:- 16 16 16 16 16 17 16 15 --- Frequency is 8
18 - 20:- 19 19 19 18 19 18 20 20 19 20 20 --- Frequency is 11
21 - 23:- 21 23 21 22 21 23 23 22 22 22 --- Frequency is 10
24 - 26:- 25 24 24 25 25 24 26 24 24 --- Frequency is 9
Next, fill the class frequency column
[tex]\begin{array}{cc}{Class} & {Frequency} \ \\ {12-14} & {2} & {15-17} & {8} & {18-20} & {11} & {21-23} & {10} & {24-26} & {9}\ \end{array}[/tex]
Relative frequency is calculated by dividing each frequency by the total frequency (40).
So, we have:
[tex]\begin{array}{ccc}{Class} & {Frequency} & {Relative Frequency}\ \\ {12-14} & {2} & {0.05} & {15-17} & {8} & {0.200}& {18-20} & {11} & {0.275} & {21-23} & {10} & {0.250} & {24-26} & {9} & {0.225}\ \end{array}[/tex]
The percent frequency is calculated by multiplying the relative frequency by 100%.
So, we have:
[tex]\begin{array}{cccc}{Class} & {Frequency} & {Relative Frequency} &{Percent\ Frequency}\ \\ {12-14} & {2} & {0.05} & {5\%}& {15-17} & {8} & {0.200}&{20\%}& {18-20} & {11} & {0.275} & {27.5\%}& {21-23} & {10} & {0.250} &{25\%}& {24-26} & {9} & {0.225}&{22.5\%} & {Total} & {40} & {1} & {100\%}\ \end{array}[/tex]
What is the measure for angle z?
Answer:
there's no angle z theres only x but the answer for x is 133
Step-by-step explanation:
Kevin earns $14.00 for writing 5 story problems. How much would Kevin earn if he wrote 100 story problems?
Answer:
280
Step-by-step explanation:
5 story problems ->$14
100 story problems -> ?
100÷5=20
20x14=280
Answer:
$280
Step-by-step explanation:
$14.00 divided by 5 would be 2.8
So he would earn $2.8 per problem
Well 2.8 x 100 is $280
So the answer would be $280
Hope this helps
y=1+sinx/cosx find dy/dx
Which one does not belong?
Answer:
should be the one in the yellow square
Step-by-step explanation:
Pls help!!! Will mark Brainiest!
Factor each expression using the GCF. Check your work using the Distributive Property.
9. 3x + 12
10. 6x - 30
11. 20x - 16
12.-50x + 80
13. 77 + 22x
14. 21x - 14
Answer:
9.3(x+4)
10.6(x-5)
11.4(5x-4)
12.-10(5x-8)
13.11(7+2x)
14.7(3x-2)
Step-by-step explanation:
What type of jobs offer commissions?
Answer:
Sales Engineers. ...
Wholesale and Manufacturing Sales Representatives. ...
Securities, Commodities, and Financial Services Sales Agents. ...
Advertising Sales Agent. ...
Insurance Sales Agent. ...
Real Estate Brokers and Sales Agents. ...
Travel Agents.
Step-by-step explanation:
What type of jobs offer commissions?
-Sales Engineers
-Wholesale and Manufacturing Sales Representatives
-Securities, Commodities, and Financial Services Sales Agents
-Advertising Sales Agent
-Insurance Sales Agent
-Real Estate Brokers and Sales Agents
-Travel Agents
there are 3 blue rings, 4 red rings, and 8 yellow rings write the ratio of red rings to all rings
to be honest i dont know all you said was ratio and some colored rings i dont know what im supposed to to that
Answer:
15:8 or 4:15 or 3:15
Step-by-step explanation:
URGENT
I put an answer already but I am not sure if it is right. I need a Confirmation.
Answer:
I think you are correct.
Step-by-step explanation:
Sorry if I am wrong
Kevin can travel 22 1/2 miles in 1/3 hours. What is his average speed in miles per hour
Answer:
67 1/2
Step-by-step explanation:
22 1/2*3
Solve the equation 2(x-3) = 14
Are they Equivalent why or why not?
Answer:
They are equivalent because when you distribute the -0.5 into 3x+5 you get the expression -1.5x+2.5
Find the measure of angle 4
A. 51
B. 39
C. 90
Answer:
angle 4 is equalivent to B.) 39°
So far, Monica has read ã of a book. She
has read the same number of pages each
day for 5 days. What fraction of the book
does Monica read each day?
17
Convert into a mixed number.
9
Answer: [tex]1\frac{8}{9}[/tex]
Step-by-step explanation:
i'm assuming the fraction is [tex]\frac{17}{9}[/tex] correct? First you would have to find out how many times 9 can be multiplied to get as close to 17. Since it can only go one time, subtract 9 from 17, then add the one next to it which would get you the mixed number of [tex]1\frac{8}{9}[/tex]
An exponential function has an initial value of 500 and a decay rate of 15%. Compare the average rate of change for the interval 0 < x < 4 to the average rate for the interval 4 < x < 8 What do you think will happen to the average rate of change for intervals beyond x = 8 ? Explain.
For 0<x<4, the average rate of change will be -60
For 4<x<8 the the average rate of change will be -31
And for the sentence (on savass in order is)
Stay negative, -31, decrease but at a slower rate
In this exercise we have to use the knowledge of functions to describe the average rates of each one of them, so:
For 0<x<4 will be -60
For 4<x<8 will be -31
First, we have to remember what an average rate means, like:
It is a measure of in what way or manner much the function altered for one, approximately, over that pause. It happen derived from the slope of the direct route joining the break's endpoints in contact the function's diagram.So we can say that:
[tex]0
See more about functions at brainly.com/question/5245372
21< -4+5x Hurry I need it
If x = 8 units, y = 3 units, and h = 9 units, find the area of the trapezoid shown above using decomposition.
A.
72 square units
B.
85.5 square units
C.
99 square units
D.
126 square units
Answer:
72
Step-by-step explanation:
because you do 8x9 and its 72
Answer:
72
Step-by-step explanation:
hope it helps