Answer:
x = -21/23 or 0.913 (rounded to the nearest thousandth)
Step-by-step explanation:
Step 1: Add 2/5 to both sides
1. -1/5x - 2/5 + 2/5 = 4/3x + 1 + 2/5
2. -1/5x = 7/5 + 4/3x
Step 2: Subtract 4/3x from both sides
1. -1/5x - 4/3x = 7/5 + 4/3x - 4/4x
2. -23/15x = 7/5
Step 3: Multiply both sides by 15
1. (15)-23/15x = 7/5(15)
2. -23x = 21
Step 4: Divide both sides by -23
1. -23x/-23 = 21/-23
2. x = -21/23 or 0.913 (rounded to the nearest thousandth)
A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean amount eaten by the 10 dogs is 14 oz. The sum of squared deviations is 220. What is the variance for this data set
Using statistical concepts, it is found that the variance for this data set is of 22 oz squared.
What are the mean and the variance of a data-set?The mean of a data-set is given by the sum of all observations divided by the number of observations.The variance of a data-set is given by the sum of the differences squared between each observation and the mean, divided by the number of values.
From the second bullet point, the variance can also be interpreted as the sum of squared deviations divided by the sample size.
In this problem, the sum of squared deviations is 220 and the sample size is 10, hence, the variance for this data set is of 22 oz squared.
You can learn more about the mean and the variance of a data-set at https://brainly.com/question/18087235
The length of a rectangle is 4 less than 5 times the width. The perimeter is 148 ft.
Find the length and width of the rectangle.
Answer:
Here to get the points thanks for recommending this ur so nice.
Step-by-step explanation:
Help would be greatly appreciated
thanks!
Answer:
the 2nd, 3rd, and 5th option
Step-by-step explanation:
When the light turns green, John accelerates straight down the road at 1.8 m/s for 8 seconds. What is his final velocity at the end of those 8 seconds
Acceleration is the rate of change of velocity over time
His final velocity is 14.4 meters per second
How to determine the final velocityFrom the question, we have:
Initial velocity: u = 0 m/sTime = 8 secondsAcceleration = 1.8 m/s^2Using the first equation of motion, we have:
[tex]v = u + at[/tex]
So, the equation becomes
[tex]v = 0 + 1.8 * 8[/tex]
[tex]v =14.4[/tex]
Hence, the final velocity is 14.4 meters per second
Read more about acceleration at:
https://brainly.com/question/25256383
Pls, Help me I will mark Brainliest for the first and correct answer...
You know that 30% of a number is close to 25. What do you know about 90% of that number?
Answer:
90% is close to 75
Step-by-step explanation:
90% of a number would be 3 times 30% of a number. As a result we can assume 90% of the number would be around 3(25) or 75
Given 64 / 108, what common factor would reduce this fraction to its lowest terms?
Answer:
Common factor of 4
Simplest terms is 16/27
Step-by-step explanation:
Let's find the factors of both numbers
64:
1, 2, 4, 8, 16, 32, 64108:
1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108The greatest common factor is 4
The fraction in simplest terms would be [tex]\frac{64}{108}*\frac{4}{4} = \frac{16}{27} \text{ cross reduce}[/tex]
-Chetan K
please help with this ques
Answer:
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A student bought a sandwich for 80 cents, milk for 20 cents, and a pie for 30 cents. How much did the meal cost?
[tex]\huge \text{Hello there! :)}[/tex]
Answer:
130 cents, or $1.30.
Step-by-step explanation:
To find the total cost of the meal, add the costs of each product.
Since the cost of the sandwich was 80 cents, the cost of the milk was 20 cents and the cost of the pie was 30 cents, then the total cost of the meal (in cents) is:
[tex]80+20+30[/tex]
Add the numbers from left to right. Since 80+20 is equal to 100, then:
[tex]80+20+30=100+30[/tex]
Finally, notice that 100+30 is equal to 130:
[tex]100+30=130[/tex]
So, the total cost of the meal was 130 cents. Each 100 cents is equal to 1 dollar. Then, 130 cents is the same as $1.30.
Therefore, the cost of the meal was 130 cents, or $1.30.
It was a pleasure helping you today! :)
[tex]\huge \text{Thanks for choosing Brainly!}[/tex]
Answer: $1.30
Step-by-step explanation:
Select the best answer for the question.
1. Last week you worked the following hours:
• Monday, 51/2
Wednesday, 63/4
Friday, 41/2
Answer:
heyy here's your answer hope it helps
Martin Works at the Big and Tall store. He gets paid $8 per hour plus $1 for each sale he makes on socks. Graph the relationship between money earned and hours worked if Martin was only able to sell 16 pairs of socks
Answer:
Let x equal the number of hours worked.
a) ƒ(x) = 8x + 1(16)
b) The slope is 8
c) The -intercept represents the money earned
d) For every one hour you work, you will gain eight more dollars
e) Yes, this answer would make sense in the real world because it will show how much money you would make over a given number of hours
f) Take a look at the picture I illustrated below.
Step-by-step explanation:
can you please help me answer this question...?
Answer: B) The coordinate of L is (3,-2).
Step-by-step explanation:
Given that L is the midpoint of JK, we can apply the following equation to obtain the coordinates of point L:
L=(5+1/2, 3-7/2)
As a result of resolving this, we obtain
L=(6/2, -4/2)
L=(3,-2)
Therefore the answer is (3,-2)
plese help me plese
Answer: 81/8 kg
Step-by-step explanation:
6 + 3/4 = 27/4
1 + 1/2 = 3/2
27/4 x 3/2 = 81/8
27/4*3/2=33/4 kg of apples
PLS HELP ILL GIVE BRANLIEST TO FIRST RIGHT ANSWER. pls im tired of this no one is answering my questions 90 big points up for this
Answer:
the value of x is 30* hope this helps. :)
Step-by-step explanation:
Help plsssssssssssss
Answer:
5. a) 2.140 + 1.725 = 3.865
b) 29.99 + 1.42 = 31.41
c) 6.157 - 1.009 = 5.148
6) 7.4 - 0.0022 = 7.2978 ✅
7.39 - 0.0012 = 7.3888
7. 140minutes / 2 hours and 20 minutes
A rectangular room has a width 1.6 times its length, and its perimeter is 26 meters. Find the dimension of the room, round to the hundredth place.
Answer:
The dimension of the room is Length of 5m and Width of 8m
Step-by-step explanation:
Formula for perimeter of a rectangle is;
P = 2(L + W)
Where;
L is length
W is width
We are given;
Width; W = 1.6L
Perimeter; P = 26 m
Thus;
2(1.6L + L) = 26
2(2.6L) = 26
5.2L = 26
L = 26/5.2
L = 5 m
W = 1.6 * 5
W = 8 m
Tomas drew a rectangle with an area of 6 square cintemeters. What is the greatest possible perimeter for this rectangle
Answer:
10 sq cm
Step-by-step explanation:
if the area of this rectangle is 6, then the sides must be 3 by 2 since
3+3+2+2 = 10 cm
Please help with math (50 points)
Answer:
1. x = 62.7 , y = 12.4
2. x = 5.9 , y = 19.2
Step-by-step explanation:
sorry i dont have the time to explain...
Tina wants to get friendship bracelet for her 32 classmate she already had 5 bracelets she can buy more bracelets in packs of 4
4.5 multiplied by -1.7
Answer:
-7.65
Step-by-step explanation:
solve the equation 2x²+3x-6=0 give your answer correct to 2 decimal places
Answer:
1.14 and -2.64
Step-by-step explanation:
100 points if u can complete this whole page !!! Pls with an explanation
Kay started a chess club, and for a while she was the only member. She planned to have each member find two new members each month. By the end of the first month, she had found two new members. If her plan is carried out, how many members will the club have at the end of 6 months
Answer:
127
Step-by-step explanation:
The sum of 7 terms of the series 1 +2 +4 +... with first term 1 and common ratio 2 is given by ...
Sn = a1 × (r^n -1)/(r -1) . . . . . . first term a1, common ratio r
S7 = 1 × (2^7 -1)/(2 -1) = (128 -1)/1 = 127
At the end of 6 months, the club will have 127 members.
What is the volume of the cone in terms of pi 6 inch and 2 inch?
Answer:
πr2h
3
Step-by-step explanation:
What is the answer for 7÷ 4/5
Answer:
7 ÷ 4/5 is 8.75 as a decimal or 8 3/4 as a fraction
Answer:
8¾
Step-by-step explanation:
7÷ 4/5
7 × 5/4
= 35/4
= 8¾
A street sign is 80 inches tall. How tall is it in feet and inches?
Answer:
The height of feet would be 6.666 just be a line above the second 6 and inches would be 960.
Helped by QueenTlove Have an nice day
Which equation accurately represents this statement? Select three options. Negative 3 less than 4.9 times a number, x, is the same as 12.8. Negative 3 minus 4.9 x = 12.8 4.9 x minus (negative 3) = 12.8 3 + 4.9 x = 12.8 (4.9 minus 3) x = 12.8 12.8 = 4.9 x + 3
Answer:
BCE
Step-by-step explanation:
Which statements apply to the expression 3/5 ? Check all that apply
Answer:
See below.
Step-by-step explanation:
I assume the fraction 3/5 is raised to the 3rd power.
I assume this is the given expression.
[tex] (\dfrac{3}{5})^3 [/tex]
The base is 3/5 True
The base is 3 False
The exponent is 3 True
The expanded form is [tex] \dfrac{3}{5} \times \dfrac{3}{5} \times \dfrac{3}{5} [/tex] True
The expanded form is [tex] \dfrac{3 \times 3 \times 3}{5} [/tex] False
[tex] (\dfrac{3}{5})^3 = \dfrac{9}{15} [/tex] False
[tex] (\dfrac{3}{5})^3 = \dfrac{27}{125} [/tex] True
Omar is in charge of planning a reception for 1800 people. He is trying to decide which snacks to buy. He has asked a random sample of people who are coming to the reception what their favorite snack is. Here are the results
Favorite Snack Number of People
Potato chips 28
Pretzels 36
Cookies 48
Other 63
Based on the above sample, predict the number of the people at the reception whose favorite snack will be potato chips. Round your answer to the nearest whole number. Do not round any intermediate calculations
Answer:
ok so first we have to find out what the sample size is so
28+36+48+63=175
then lets find what percentage 28 is of 172
16.28
so ten lets find out how many that is out of the 1800
1800*0.1628=293.04
293 people will like potato chips
Hope This Helps!!!
Express cos 543 as a function of the reference angle.
Question 3 options:
cos183
-cos-3
cos-3
-cos3
[tex]\qquad \qquad\huge \underline{\boxed{\sf Answer}}[/tex]
Here's the solution :
[tex]\qquad \sf \dashrightarrow \: \cos(543 \degree) [/tex]
[tex]\qquad \sf \dashrightarrow \: \cos( 360 \degree+ 183 \degree)[/tex]
[tex]\qquad \sf \dashrightarrow \: \cos(183 \degree) [/tex]
[tex]\qquad \sf \dashrightarrow \: \cos(180 \degree + 3 \degree) [/tex]
[tex]\qquad \sf \dashrightarrow \: - \cos(3 \degree) [/tex]
Therefore, the correct choice is D
What’s the missing number in sequence 127, 144, 48, 66, 33, ?
The missing number in the sequence is 52.
What is the missing number in the sequence?In order to determine the missing number, the pattern in the sequence has to be determined.
The difference between the second and first number is 144 - 127 = 17
The third number is 3 times smaller than the second number: 144 / 48 = 3
The difference between the fourth number and the third number is 66 - 48 = 18.
The fifth number is 2 times smaller than the fourth number: 66/33 = 2
Based on this sequence, the sixth number would be 19 more than the fifth number. 33 + 19 = 52
To learn more about sequences, please check: https://brainly.com/question/11266123