Which best proves why the expressions 4 (x + 3) + 2 x and 6 (x + 2) must be equivalent expressions?
A. When x = 3, both expressions have a value of 30.
B. When x = 5, both expressions have a value of 42.
C. When x = 1, both expressions have a value of 18, and when x = 8, both expressions have a value of 60.
D. When x = 2, both expressions have a value of 15, and when x = 6, both expressions have a value of 39.
Answer:
It's A
Step-by-step explanation:\\\\\\\\\\\\\
Answer:
Your answer would be A sorry if I'm late to answering!
Step-by-step explanation:
11) slope and y-intercept, if the answer ignore this if you do know the answer than plz answer
Answer:
Slope : -1
Y-intercept : (0,6)
Step-by-step explanation:
Answer:
Slope: -1
y-intercept: 6
Step-by-step explanation:
Lets figure out the slope with the formula, [tex]\frac{y2 - y1}{x2-x1}[/tex]. Take 2 coordinates and substitute them in. Lets take (-3,9) and (-1,7). Here are the steps:
[tex]\frac{7-9}{-1-(-3)}[/tex]
[tex]\frac{-2}{-1+3}[/tex]
[tex]\frac{-2}{2}[/tex]
[tex]-1[/tex]
Now we know that the slope is -1, so m = -1.
Lets figure out the y-intercept. We have to have an equation with the slope in it. Since we don't know the y-intercept yet, we will use the equation y = -x + b. Lets take the coordinate (5,1). Substitute the coordinates in. Here are the steps:
1 = -5 + b
b = 6
Now we know that the y-intercept is 6, so b = 6. I hope this helped!
I really need help with this. don't do this for the points, please.
Answer:
4 months
Step-by-step explanation:
I first did 45 minus 125 then divided it by 20 because that how much he pays each month. So the answer has to be 4 months.
I am only doing 15 points because I have asked questions and they just take advantage of the points and don't actually answer the question.
Mrs. Jones husband thought he could fix the clogged sink drain. In doing so he lost the drain snake down the pipe and had to call a plumber. Roto-Rooter charged a $50 home visit fee and an hourly rate of $35 an hour.
Write an equation in slope-intercept form to represent the total cost of the plumbers fees.
y represents the total cost and x represents the number of hours.
Write another equation where t represents the total cost and h represents the number of hours.
What does the y-intercept represent in this problem?
What does the slope represent in this problem?
The plumber was at Mrs. Jones house for 4 hours. What is the total cost for the plumbers visits?
Willow has 1000!dog treats and Lilly has 80 dogs how many do each of them get
Coal mines have shafts that can be as much as 7^3 feet deep. About how many feet deep into the Earth's crust are these shafts?
Answer:
343
Step-by-step explanation:
7 x 7 = 49
49 x 7 = 343
The coal mines is 343 feet deep into the Earth's crust are these shafts.
What is Unit of Measurement?A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.
Given that Coal mines have shafts that can be as much as 7³ feet deep.
We need to find about how many feet deep into the Earth's crust are these shafts.
From the given it is 7³ feet deep.
So let us find the value of 7³
7×7×7
49×7
Forty nine times of seven
343
Three hundred and forty three.
So the coal mines is 343 feet deep into the Earth's crust are these shafts.
Hence, the coal mines is 343 feet deep into the Earth's crust are these shafts.
To learn more on Unit of Measurement click:
https://brainly.com/question/15402847
#SPJ2
A skydiver falls at a rate of 144 feet in three seconds. How far is he falling each second?
A) 141 ft
B) 432 ft
C) 48 ft
D) 147 ft
Write the power of 10 to multiply the divisor by to make it a whole number. Then, write the equivalent problem and find the quotient.
16.65 divided by 0.37
i need halp wit this and also i brainly keeps deleting meh questions
Answer:
45
Step-by-step explanation:
The equivalent problem is 16.65×10²/0.37×10² and the quotient is 45.
What is a quotient?In arithmetic, a quotient is a quantity produced by the division of two numbers. The quotient has widespread use throughout mathematics, and is commonly referred to as the integer part of a division, or as a fraction or a ratio.
Given that, 16.65 divided by 0.37.
Now, multiply both numerator and denominator by 10², we get
16.65×10²/0.37×10²
= 1665/37
= 45
Therefore, the quotient is 45.
Learn more about the quotient here:
https://brainly.com/question/16134410.
#SPJ2
Please help me I will give you the brain thing and extra points (image below) 2/5
Answer:
The slope is 0
Step-by-step explanation:
here the thing to remember
If you can walk on the line, the slope is 0, if you can’t it’s undefined
At a school carnival, tickets can be purchased to participate in different activities. The table shows the total cost for different numbers of tickets.
What is the constant of proportionality that relates y , the total cost in dollars, to x , the number of tickets purchased?
PLZ I HAVE TO FINISH THIS TEST TODAYYY
Answer:
4 tickets for $1
Step-by-step explanation:
I just divided 8 with 2.00 and got 4.
The value of the constant of proportionality that relates y, the total cost in dollars, to x, the number of tickets purchased is 1/4.
What is a proportional relationship?It is defined as the relationship between two variables when the first variable increases, the second variable also increases according to the constant factor.
It is given that:
At a school carnival, tickets can be purchased to participate in different activities.
The data are shown in the picture.
From the data:
y ∝ x
Removing the proportional sign:
y = kx
Plug x = 8
y = 2
2 = 8k
k = 1/4
Thus, the value of the constant of proportionality that relates y, the total cost in dollars, to x, the number of tickets purchased is 1/4.
Learn more about the proportional here:
brainly.com/question/14263719
#SPJ5
I need help with my math problem..
Answer:
5 1/3
Step-by-step explanation:
i did 2/15 x 40 minutes
Find each difference. If you get stuck, consider drawing a diagram.
2.5-1.6
0.72-0.4
11.3-1.75
73-1.3
Answer:92
Step-by-step explanation:...
Answer:
1. 0.9
2. 0.32
3. 9.55
4. 71.7
Step-by-step explanation:
there u go
A pharmacist put 2.415 ounces of vitamin pills into bottles. She put 0.023 ounces of vitamin
pills into each bottle.
How many bottles did the pharmacist use for these vitamin pills?
Answer: 105 bottles
Step-by-step explanation: You divide the amount used and how much was in each one. :)
Determine how far the vehicle travels in 3 hours. A ferry travels 45 miles every 1 1/2 hours.
Answer:
Um 90 miles lol
Step-by-step explanation:
Please help me I will give you the briain thing and extra points. (image below) 10/13
Answer: B
Step-by-step explanation:
You have to look at the first number behind the decimal. C and D are wrong because the first numbers behind the decimal are zeros which is less than 3 and 1. A is wrong because .04753 is less than .04792
I will give the brainiest if u get the answer right
Answer:
9000 = 900 x 10 ^1
Step-by-step explanation:
9. Evaluate the ceiling function for the given value.
A. f(x) = ⌈x⌉; x = −7.4
B. g(x) = ceiling (x, 0.50);
x = 21.27
Given:
A. f(x) = ⌈x⌉; x = −7.4
B. g(x) = ceiling (x, 0.50); x = 21.27
To find:
The values of ceiling function for the given value.
Solution:
A.
We have,
f(x) = ⌈x⌉; x = −7.4
Here, f(x) is a ceiling function, so we need to find the nearest next integer value because if m < x ≤ n, then ⌈x⌉ = n, where m and n are integers.
Now,
f(-7.4) = ⌈-7.4⌉
f(-7.4) = -7
Therefore, the value of f(x) is -7 at x=-7.4.
B.
g(x) = ceiling (x, 0.50); x = 21.27
Here, g(x) is a ceiling function with 0.50, so we need to find the nearest next multiple of 0.50 because if m < x ≤ n, then ⌈x⌉ = n, where, m and n are multiples of 0.50.
Now,
g(21.27) = ceiling (21.27, 0.50)
g(21.27) = 21.50
Therefore, the value of g(x) is 21.50 at x=21.27.
Please help me on this, it needs to be done quickly. Read the image.
Answer:
3.07
Step-by-step explanation:
Solve the inequality.
3≤7+g
Answer:
g-4
Step-by-step explanation:
first subtract 7 from both sides
then you will get -4[tex]\leq[/tex]g
which is the same as g[tex]\geq[/tex]-4
you just have to switch them
The solution to the equation for inequality 3≤7+g is g ≥ -4. Equations and inequalities are both mathematical sentences that are formed by connecting two expressions.
How to solve the inequality ?Equations and inequalities are both mathematical sentences that are formed by connecting two expressions. The symbol = indicates that the two expressions in an equation are deemed equal. In contrast, in an inequality, the two expressions are not always equal, as indicated by the symbols: >,, or.
You test the end point by plugging it into the related equation. The inequality is then tested to see if it is correct by substituting any other solution to see if it is one of the solutions.
Rearrange the equation by subtracting what is to the right of the less equal sign from both sides of the inequality :
3-(7+g)≤0
Pull out like factors :
-4 - g = -1 • (g + 4)
Multiply both sides by (-1)
Flip the inequality sign since you are multiplying by a negative number
g+4 ≥ 0
Subtract 4 from both sides
g ≥ -4
The solution to the equation for inequality is g ≥ -4.
To learn more about inequality refer :
https://brainly.com/question/24372553
#SPJ2
Select the three true statements.
1. pi is the area of a circle of radius 1.
2. pi is the area of a circle of diameter 1.
3. pi is the circumference of a circle of radius 1.
4. pi is the circumference of a circle of diameter 1.
5. pi is the constant of proportionality relating the diameter of a circle to its circumference.
6. pi is the constant of proportionality relating the radius of a circle to its area.
Answer:
9/2
Step-by-step explanation:
this is a khan academy question
Answer:
Its A hope this is correct, please give me brainliest, my dog died today :(
Step-by-step explanation:
Find the slope of the line that passes through (8, 4) and (5, 2).
(Type your answer in like this: 1/4, for example.)
Answer:
Slope (m)0.6667Slope-Intercept: y = mx + by = 0.6667x -1.33
Step-by-step explanation:
Yolanda has read 10 pages of her novel and reads 0.5 pages each minute. Jasmin has read 15 pages of the same novel and reads 0.25 pages per minute. After how many minutes will Yolanda have read at least the same number of pages as jasmine?
Unit rate is the quantity of an amount of something at a rate of one of another quantity.
10 pages = 20 minutes
15 pages = 15 x 20/10 minutes
15 pages = 30 minutes
The number of minutes at which Yolanda will have read the same number of pages as Jasmine is 30 minutes.
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
In 2 hours, a man can walk for 6 miles
In 1 hour, a man will walk for 3 miles.
We have,
Yolanda:
0.5 pages = 1 minute
Multiply 10/0.5 on both sides.
10 pages = 10/0.5 x 1 minute
10 pages = 20 minutes
Jasmin:
0.25 page = 1 minute
1 page = 4 minutes
15 pages = 60 minutes
Now,
The time at which Yolanda will read 15 pages
10 pages = 20 minutes
15 pages = 15 x 20/10 minutes
15 pages = 30 minutes
Thus,
The number of minutes at which Yolanda will have read the same number of pages as Jasmine is 30 minutes.
Learn more about unit rates here:
https://brainly.com/question/11258929
#SPJ2
Can you pls answer these questions?
I'm giving brainliest
Please help- I will give brainliest to best answer (One math word problem)
Answer:
Jason has put in around 17 hours of work
Step-by-step explanation:
Answer:
16 2/3
Step-by-step explanation:
sry if its wrong.
When 1480 is divided into 12 equal parts, the remainder is 4. What is a correct way to write the quotient?
123.4
1234 over 12
123 + 4
1234 over 1480
Answer:
123 + 4
Step-by-step explanation:
whenever there is a remainder you write something + the remainder
Which vertex of the rectangle has the coordinates (-3,4) ASAP
Answer:
The answer is A.
Step-by-step explanation:
Have a good day/night :)
Answer:
A
Step-by-step explanation:
(-3,4) would be in A of the rectangle because -3 is x and that would be 3 spaces to the left from the (0,0) point and 4 is y and that is 4 spaces up from (0,0)
in a basket there are 24 sweet oranges. The ratio of sweet oranges to sour oranges is 4:1 find the number of sour oranges. Plssss help with this question!!!
Answer:
6 sour oranges
Step-by-step explanation:
24/4=6
24:6
PLEASE HELP ME IT'S DUE IN A COUPLE OF MINS
Answer:
y = 1.25x + 2
y = x + 4
Please help me I will give you the briain thing and extra points. (image below) 11/13
Answer: C
Step-by-step explanation:
Answer:
It should be c
Step-by-step explanation: