Answer: x= 1/7 y + -3/7
Step-by-step explanation:
y=7x+3
Step 1: Flip the equation.
7x+3=y
Step 2: Add -3 to both sides.
7x+3+(−3)=y+(−3)
7x=y−3
Step 3: Divide both sides by 7.
3 Jonas received a gift card of $35.00 to use for an online App Market to buy applications for his tablet. All Apps cost $1.75. Which table represents the relationship between x, the number of Apps Jonas can buy, and y, the balance remaining on his gift card.
Answer:
A)
Step-by-step explanation:
Multiply each number form the table x by 1.75 and substract from y
What is the solution set to the given inequality?
6(x-2) 2 8 + 8x
Answer:
48 x 2 − 184 x + 192
Step-by-step explanation:
A library receives 413 boxes of books and 125 boxes of magazines. There are 18 books in each box of books. How many total books did the library receive?
? x 18 = ?
Answer: 7434 books
Step-by-step explanation:
413 x 18= 7434
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
D brainliest?
Step-by-step explanation:
The recipe for a large batch of cookies uses 1 kilogram of flour. Another recipe uses 700 grams of flour. How much flour is needed to make two batches of each recipe?
1 kilogram = 1,000 grams
Answer:
3,400 grams
Step-by-step explanation:
The total amount of flour needed to make two batches of each recipe is 3400 grams.
How much gram is equal to 1 kilogram?1000 grams is equal to 1 kilogram.
Amount of flour used in one batch of the first recipe= 1 kilogram
So, the amount of flour used in two batches of the first recipe=2 kilogram =2000 grams.
Amount of flour used in one batch of the second recipe= 700 grams
So, the amount of flour used in two batches of the second recipe= 2*700=1400 grams.
Total amount of flour needed = 2000+1400 =3400 grams.
Hence, The total amount of flour needed to make two batches of each recipe is 3400 grams.
To get more about units visit:
https://brainly.com/question/13016491
y=4(1/3)^x growth or decay and why ?
Answer:
Decay
Step-by-step explanation:
The equation shown has a ratio(number raised to the power) less than 1, so therefore it is decay. This basically comes from the fact that if you raise a number less than 1 to a power, it become smaller than the number itself.
(In the cases talked about above, we are neglecting negative numbers)
Graph the point (-10,-5) on the coordinate plane.
1044
8
6
4
2
X
-10
-8
-6
-4
-2
0
2
4
6
8
10
-2
-4
-6
-8
-10
a group of 100 people, some students, and some faculty attended a museum opening. Each student paid $10 per person for entrance to a museum and each of the faculty paid $ 25 per person for entrance. if the total paid, for all 100 people, was $1300, how many, students attended the museum opening?
a. 20
b. 70
c. 80
d. 50
Answer: 80
Step-by-step explanation:
Let the number of students be represented by x
Let the number of faculty be represented by y.
Based on the information in the question, we can form an equation which will be:
x + y = 100 ..... i
10x + 25y = 1300 ....... ii
From equation i,
Make y the subject of the formula
y = 100 - x ...... iii
Put the value of equation iii into ii
10x + 25y = 1300
10x + 25(100 - x) = 1300
10x + 2500 - 25x = 1300
10x - 25x = 1300 - 2500
-15x = -1200
x = 1200/15
x = 80
There were 80 students who attended the museum opening
A sock drawer contains winter socks and summer socks. Both varieties come in two colors: white and black. There is a pair of each combination. If a sock is selected randomly, what is the probability it will be a black sock or a summer sock? A. 0.25 B. 0.5 C. 0.625 D. 0.75
Answer:
D 0.75
Step-by-step explanation:
There are a total of 4 pairs: White-Summer, Black-Summer, White-Winter, and Black-Winter. There are a total of 8 socks.
The probability of pulling a black sock or a summer sock is the number of all black or summer socks divided by the total number of socks.
The number of black or summer socks includes 1 pair of White-Summer, 1 pair of Black-Summer, and 1 pair of Black-Winter.
This makes for 6 black or summer socks.
Divide 6 by 8 to get 0.75
HELP ASAP!! Find the value of x
Answer:
x=9
Step-by-step explanation:
Angle C and Angle B are congruent, meaning they have the same measure
Set up your formula as
4x+14=50
4x=50-14
4x=36
x=36/4
x=9
Find the values of x and y. Write your answer in simplest form
Answer:
a = 8
b = 13.85641 or 8√3
Step-by-step explanation:
For some reason, my explination isn't formatting properly, hope this helped
Answer:
Step-by-step explanation:
The angle is 60 degrees so the triangle is half of an equilateral triangle
so y is half of the hypotenuse:
y = 16/2 = 8
x = √16^2 - 8^2 = √256 - 64 = √192 = 8√3
√2/3 -√1/6 how do you do this
Answer:
1/√6 or √6 /6
Step-by-step explanation:
√2/3 -√1/6 =√4/6 - √1/6
= (√4-√1)/√6
= (2-1)/√6
=1/√6 or √6 /6
An isosceles triangle has base angles
that each measure 52°
Which equation can be used to find x, the measure of
the third angle of the isosceles triangle in degrees?
A) 2X = 52
D) $2X = 180
B) 52 + 2x = 180
ED 52 + x = 180
CD 2x52 180
None of the above
Ode
SK drownywhere an Al
Answer:
None of the above
Step-by-step explanation:
Measure of one base angle: 52°
Measure of the other base angle: 52°
Measure of the third angle: x
Sum of the measures of the three angles: 180°
Equation:
x + 52 + 52 = 180
x + 104 = 180
Answer: None of the above
What is the area of the shaded Region? (Answer to the Nearest Tenth)
Shaded area = Circle area - Rectangle area
Shaded area = 3.14 × (4)^2 - 5 × 6
Shaded area = 3.14 × 16 - 30
Shaded area = 50.24 - 30
Shaded area = 20.24
Shaded area = 20.2
1. Write the absolute value inequality in the form |x−b| c that has the solution set x<-5
can someone help? will mark brainliest if it's correct :)
Answer: |x - 1| > 6
Step-by-step explanation:b is the centre:
(-5 + 7)/2
2/2 = 1
b = 1
c is the distance from the centre
c = 7 - 1 = 6
Since it's an or case, > with the modulus
|x - 1| > 6
Question 20 *
The principal of a school will distribute money from the school's budget to three sports:
cricket, track and field, and netball in the ratio 4:3:2. If the total budget for the three
sports is $1.800.000, how much money will go to netball?
$200,000
B. $400.000
C. $600,000
D. $900.000
А
B
C
Answer:
B
Step-by-step explanation:
2/9th of the money does to netball
2/9 of 1800 is 400
Answer:b
Step-by-step explanation:
What is the slope of the straight line that goes
through (1, 8) and (3, 4) ?
Answer:
-2
Step-by-step explanation:
Slope of the line
[tex] = \frac{8 - 4}{1 - 3} \\ \\ = \frac{4}{ - 2} \\ \\ = - 2[/tex]
The product ( the result of a multiplication problem ) of 2 rational expressions is x+22x−3 with the restrictions x≠– 3, x≠32, x≠4 and x≠ 5. Find an expression that meets the criteria. You may leave your answer in factored form.
Answer:
x + 22x - 3 = 4 (5x) + 3 (x-1)
Step-by-step explanation:
x + 22x - 3
23x - 3
20x + 3x - 3
5x + 15x + 3x - 3
5x (1 + 3) + 3 ( x - 1)
4 (5x) + 3 (x-1)
1)The sum of a number and 81 is at least 102.
Answer:
any number grater than or equal to 21
Step-by-step explanation:
find the values of y and x plssss
Answer:
x=13° & y=74°
Step-by-step explanation:
y=74°(cointerior angle r equal)
now,
y=4x+22(vertically opposite angles equal)
74-22=4xx=52/4x=14°stay safe healthy and happy.Answer:
x = 21
Step-by-step explanation:
The 74 angle and y angle are supplementary which means they add up to 180 degrees, so 180 - 74 = 106
Then you know that y is equal to 4x + 22
so then you just set 4x + 22 equal to 106
then you subtract 22 from both sides which leaves you the equation 4x = 84
then you divide 84/4 which equals 21
Jada ran 15.25 kilometers. Han ran 8,500 meters. Who ran farther?
Answer:
Jada
Step-by-step explanation:
We are given Jada's distance in kilometers and Han's distance in meters. To compare the two we need to have them both in the same unit of measurement.
One kilometer is equal to 1000 meters, so Jada ran 15.25*1000=15250 meters.
Compared to Han, who ran 8500 meters, Jada ran farther. 15250>8500.
WILL GIVE BRAINLIEST
1. A department store kept records of how many fans were sold each day and the high temperature for that day. The results are shown in the scatterplot. Answer the questions about the scatterplot.
a. What is the explanatory variable (independent variable)? (1 point)
b. What is the response variable (dependent variable)? (1 point)
c. Circle the best range for the correlation coefficient. (1 point)
(–1 to –0.7) (–0.7 to –0.3) (–0.3 to 0) (0 to 0.3) (0.3 to 0.7) (0.7 to 1.0)
d. Based on this scatterplot, does a rise in temperature cause more fans to be sold? Why or why not? (3 points)
2. This scatterplot shows the relationship between a player's level in a game and the point total in the level. Answer the questions about the scatterplot.
a. The best model for these data would be (linear / exponential / quadratic). (Circle the correct answer.) (1 point)
b. This table shows the values from the scatterplot. Find the regression equation for the model that you chose in Part a. Round your answer to the nearest hundredth. (3 points)
x
Level
y
Point total
1
124
2
156
3
194
4
240
5
305
6
380
7
477
8
596
9
745
c. Using the equation that you found in Part b, predict the point total in the 10th level. Round your answer to the nearest integer. (2 points)
3. Maria is a veterinarian. She wants to know how the weight of a puppy is related to its length. To find out, Maria randomly selected 10 puppies that are two months old. She recorded the length and weight of each puppy in the table below.
Part A. The data from the table are shown on the scatterplot. Draw an estimated line of best fit through the data points. (3 points)
Part B. Use the scatterplot to answer these questions.
a. What kind of correlation exists between the length and weight of the puppies? Explain. (2 points)
b. Identify two points on the line of best fit that you drew in Part A. Use the two points to find the equation of the line. Write the equation of the best fit line in slope-intercept form. Show your work. (4 points: 1 point for identifying the coordinates of two points, 1 point for slope, 1 point for b-value, and 1 point for showing work)
4. Maria also wants to study the relationship between the weight of puppies at birth and their adult weight (at two years old). She collected data from five randomly selected small-breed dogs and displayed the data in the table.
Birth weight
(pounds)
Adult weight
(pounds)
1.5
10
3
17
1
8
2.5
14
0.75
5
Part A. Use the data in the table to create a scatterplot. (5 points)
Part B. Look at the scatterplot that you drew in Part A. Which regression equation (linear, exponential, or quadratic) do you think would be the best model for these data? To help you decide, think about the adult weight you would expect if the birth weight were larger — say, 10 pounds. Would you expect the pattern in the scatterplot to continue? To grow exponentially? To change direction? Explain your answer. (2 points)
Part C. Perform a linear regression and interpret the results.
a. Use a calculator to perform a linear regression. Round the values your calculator gives you for a and b to the nearest hundredth. (2 points)
y = _______x + _______
b. What is the slope of the regression equation? What does this mean in terms of the birth weight and adult weight? (2 points)
c. What is the value of the correlation coefficient? (1 point)
d. Describe the correlation in terms of strength (weak or strong) and direction (positive or negative). (2 points)
Part D. Analyze the residuals.
Birth weight
(pounds)
Adult weight
(pounds)
Predicted
adult weight
Residual
1.5
10
3
17
1
8
2.5
14
0.75
5
a. Use the linear regression equation from Part C to calculate the predicted adult weight for each birth weight. Round to the nearest hundredth. Enter these in the third column of the table. (2.5 points)
b. Find the residual for each birth weight. Round to the nearest hundredth. Enter these in the fourth column of the table. (2.5 points)
c. Plot the residuals. (3 points)
d. Based on the residuals, is your regression line a reasonable model for the data? Why or why not? (2 points)
5. Decide whether each statement is true or false. (1 point each)
a. T/F: If there is a strong correlation between two variables, the correlation coefficient will be close to –1 or 1.
b. T/F: If there is a negative correlation between two variables, the slope of the regression line will be positive.
c. T/F: If there is a strong correlation between two variables, there is a cause-and-effect relationship.
d. T/F: The best model for data that change direction is a linear model.
e. T/F: A regression line is useful for predicting unknown values within the range of the observed data values.
Answer:
Step-by-step explanation:
Answer to #5: is T, F, F, F, T I'm pretty sure that's correct.
Plzzzzzzz help me I am struggling
Answer:
a=8 b=15 c=17
Step-by-step explanation:
hope this helps
Find the volume of the prism if the area of the pentagonal base is 110cm.
Answer:
2202.21 is the voloume
Step-by-step explanation:
PLEASSSSEE HURRRRY HELLPP
Answer:
I believe your answer for 11. is B! And for 12 its E and C! 13 I think its D I'm not sure though!
10-36. Talayna has some money that she wants to put into a savings account and she has two
options. One option pays 2% interest compounded quarterly. Another option pays only 1.5%,
but is compounded monthly. If she wants to deposit the money for 5 years, which account is
better? If she wants to deposit for 25 years, which account is better? Homework Help
Plzzz
Answer:
Option 1
Step-by-step explanation:
Effective Interest Rate = [ 1 + ( r / m) ]^ mt - { 1 }
where i = nominal interest rate , n = number of compounding per time period, t = number of time periods
Option 1 : Interest rate 'i' = 2% , Quarterly compounding 'n' = 4 , t = 25 years
EAR = [ 1 + 2% / 4 ]^ (4 x 25) - [ 1 ] = 0.6466 , ie 64.66%
Option 2 : Interest rate 'i' = 2% , Monthly compounding 'n' = 12 , t = 25 years
EAR = [ 1 + 1.5% / 12 ] ^ (12 x 25) - [ 1 ] = 0.4546 , ie 45.46%
As option 1 has higher EAR than option 2, former is better than latter
Consider this equation.
x to the third power = 27
Which of the following values of x makes the equation true?
A. 3
B. 9
C. 1/3
D. 1/9
What is one thing that you want to accomplish next year in math? State your goal for math (in a complete sentence):
Answer:
I want to take better notes that include examples and definitions.
Step-by-step explanation:
Answer:
My goal in math that I would like to accomplish next year is to be a hard-working student who is self-managed and can work under pressure. ( switch it up a little if it doesn't match you)
Step-by-step explanation:
Given m||n, find the value of x.
kt
(7-10)
(6x-5)°
Answer:
15
Step-by-step explanation:
So, leets look at the graph.
We can see that the lines being solved for tecnically make up 180 degrees.
This is because the value of the angles on line m are equal to the value of the angles on line n.
So, we know that the total line, 180 degrees, is 7x-10, and 6x-5.
Lets combine these two equations, and subtract them from 180 degrees to solve for x:
7x-1+6x-5
=
13x-15
Now to solve for x:
13x-15=180
Add 15 to both sides to get 13x alone:
13x=195
Then divide both sides by 13 to get x alone:
x=15
So our value of x is 15!
Hope this helps! :)
Which is a number that can be written as a fraction in the form /?
Answer:
the third one/second one
Step-by-step explanation:
