Answer:
d) 4x-3
Step-by-step explanation:
(7x-5)-(3x-2)
=(7x-5)-1(3x-2)
=7x-5-3x+2
=4x-3
The population of Austin, Texas in 1980 was 346,000 people. The population in 1990 was 472,000 people. What is the rate of change of the population with respect to the year for this function?
Answer:
12.6 thousand a year
Step-by-step explanation:
take the 346 add 126 thousand to it equaling a good 472 thousand divide 126 thousand by 10 cause it is a ten year span that equals you get 12.6 thousand.
I need brainliest please
We want to find the rate of change of the population of Austin, Texas in the years between 1980 and 1990.
The answer is: r = 12,600 people/year.
We will assume that this increase in population is modeled with a linear equation, remember that a general linear equation is:
y = a*x + b
Where the rate of change, or slope, is a.
We know that if a line passes through two points (x₁, y₁) and (x₂, y₂) the slope is given by the formula:
[tex]a = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
For this case we have two points, these are:
(1980, 346,000)
(1990, 472,000)
Then the slope or rate of change is just:
[tex]a = \frac{472,000 - 346,000}{1990 - 1980} = 12,600[/tex]
To be complete we need to add the correspondent units, which are people per year.
Then the rate of change is:
r = 12,600 people/year.
If you want to learn more, you can read:
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A plant grew 7 inches in 5 months. The plant grows the same amount each month. Use this rate to complete this table.
(Redo since the last photo was all wonky and stuff)
Answer:
1 | 1.4
2 | 2.8
3 | 4.2
4 | 5.6
5 | 7
6 | 8.4
Step-by-step explanation:
7 inches in 5 months
7/5 = 1.4
It grows 1.4 inches a month
This is the table
1 | 1.4
2 | 2.8
3 | 4.2
4 | 5.6
5 | 7
6 | 8.4
Help! Question on khan academy! pls explain
Answer:
He will have 10.
Step-by-step explanation:
this is an example of the counting principle.
when you add the numbers of a probability, it will give you the amount you need.
4 + 3 + 3 = 10. hope this helped! branliest plz.
6.39E-26 in scientific notation please help
Answer:
I'm so sorry I just need points :) bjsdbhdjfhedf8biehuj3
Step-by-step explanation:
Thanks
what is 35.6 multiplied by 4.9.
Answer:
Step-by-step explanation:
35.6×4.9
=174.44
Answer is 174.44
Answer:
174.44
Step-by-step explanation:
35.6 x 4.9 = 174.44
356 (take away decimal)
x 49 (take away decimal)
17,444
Don't think 17,444 is our final answer. We still have to add the decimal places. Since there was two decimals in both numbers, we add two decimals places. So:
17,444 turns into 174.44
Final Answer:
174.44
Hopefully this helps! Sorry if wrong. You are loved, and you are beautiful/handsome!
-Bee
A bag contains 6 one-dollar coins and 4 two-dollar coins. Three coins are taken at random without replacement.
a Draw a simplified tree diagram to show the sample space.
b Find the probability that the coins were taken out are the same.
c What is the probability you will have exactly $3?
d What is the probability you will have exactly $6?
e. What is the probability you will have exactly $5?
An arithmetic sequence has a first term of 8 and sixth term of 38. What is the 50th term of this sequence?
Answer:
74
Step-by-step explanation:
{0,1,-3}
---------------------------
-3 -2 -1 0 1
0n the number line.
Answer:Whats the question?
k + 9 = 17
What does k value?
k=8
k=9
k=17
k=26
Answer:
8
Step-by-step explanation:
k + 9 = 17
subtract 9 from both sides:
k = 8
Answer: k=8 so I guess A haha
Step-by-step explanation:
you would just subtract 9 from each side so 17-9= 8 and boom.
You’re welcome :)
HELP PLEASE!! MATH! USA TEST PREP HELP!!!
I am sorry but I cannot see the text on your screen if you could zoom in it would really help. : )
Answer:
b
Step-by-step explanation:
because each number is the same amount apart but the others dont
The two opposite vertices of a square
are (-2, 2) and (1, -1). What are the other two vertices of the square?
Answer:
(-2, -1), and (1, 2)
Step-by-step explanation:
i made a grid and i made a square with the -2, 2 and 1, -1.
Solve and then tell how many solutions there are. 4v – 13 – 10v = 12 – 24v + 5 + 18v
help im not good with fractions!!!
Randy has 2/3 of a bag of candy left. He has 3 friends he wants to give his leftovers to. If he splits the remaining 2/3 of a bag among his 3 friends equally, what part of the bag will each friend get?
Answer:
2 please follow me fast and vote me
Step-by-step explanation:
2/3*3
= 6/3
= 2
How do I do Distance Formula? Here is the equation ( or equations I don't know if it is a equation or 2 different ones) that I need help with
They are late and I need to turn them in [tex]C(-5, -3), D(-4, -2)\\K(8 1/2, 12), L( -63/4, 7 1/2)[/tex]
Answer: view image below
Step-by-step explanation:
Hope this helps you, love!
Answer:
c and d = square root of 26 or 5.09901 in decimal
k and l = square root of 59461/2 or 60.9615 in decimal
Step-by-step explanation:
hope this helps:))
The shaded area of the picture shows what part of the yard Rashon mowed in 15 minutes. He wonders how long it will take him to mow the whole yard.
How long will it take Rashon to mow the entire yard?
30 mins.
60 mins.
90 mins.
180 mins.
Answer:60
Step-by-step explanation:
please help i don't understand. will mark brainliest. answer the both questions
Answer:
1-Undefined
2-Positive
Step-by-step explanation:
Answer:
The slope of a vertical line will always be 0
A graph with a negative slope increases from right to left
Step-by-step explanation:
5(−3.4k−7)+(3k+21) find the sum
Answer:
-14k - 14
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define expression
5(-3.4k - 7) + (3k + 21)
Step 2: Simplify
Distribute 5: -17k - 35 + 3k + 21Combine like terms (k): -14k - 35 + 21Combine like terms (Z): -14k - 14Answer:
−14k−14
Step-by-step explanation:
View attached picture!
Consider Brainliest!
Relationship B has a lesser rate than Relationship A. Does this graph represent Relationship A. What table could represent Relationship B?
{Time (weeks) 3 6 8 10
{ Plant growth (in.) 4.8 9.6 12.8 16
{Time (weeks) 3 4 6 9
{Plant growth (in.) 6.3 8.4 12.6 18.9
{Time (weeks) 3 6 8 10
{Plant growth (in.) 2.25 4.5 6 7.5
{Time (weeks) 3 4 6 9
{ Plant growth (in.) 5.4 7.2 10.8 16.2
The first-quadrant graph showing a ray from the origin through the points begin ordered pair 2 comma 3 ends ordered pair and begin ordered pair 4 comma 6 end ordered pair. The horizontal axis label is Time in weeks. The vertical axis label is Plant growth in inches.
Answer:
the answer im pretty sure is A. (weeks) 3 6 8 10 (in) 4.8 9.6 12.8 16
Step-by-step explanation:
The body of a 154-pound person contains approximately 2×102 milligrams of gold and 6×103 milligrams of aluminum. Based on this information, the number of milligrams of aluminum in the body is how many times greater than the number of milligrams of gold in the body?
can you show your work too?
Answer:
2 x 1 0^2 and 6 x 10^
Step-by-step explanation:
Hope I helped
Brainliest plz :)
The Spring Middle School gym used to hold 350 people. Now, they are only able to hold 200 people. By what percent did the seating in the gym change? (round your percent to the tenths place)
Answer:
mekekekekeeiwjkwkwiw99 9hebsbwbe
Answer:
43%
Step-by-step explanation:
Find What is the decrease percentage for 350 to 200?
Step by step workout
step 1 Address the formula, input parameters & values
Formula :
Difference
Initial Value
x 100 = Percent Decrease (%)
Initial Value X = 350 & New Value Y = 200
Decrease = (X - Y)
(350 - 200)
350
x 100 = ?
step 2 Apply the values in the percentage decrease {(X - Y)/X x 100} formula
=(350 - 200)
350
x 100
=150
350
x 100
= 42.8571%
(350 - 200)
350
x 100 = 42.8571%
The percentage reduction can be written as 57.1429% of 350.
42.8571 percent decrease (%↓) or reduction from 350 is 200.
If you round it you get 43%
Hope this helps.
A local donut shop sells a dozen donuts for $8.64 . At this rate , how much would 14 donuts cost ?
Answer:
10.08
Step-by-step explanation:
8.64 divided by 12 is 0.72
then you multiply .72 by 14 and you get
10.08
A scale of 1:25 was used to create a drawing of an object. How would you find the actual length that corresponds with a given scale length?
A.)Multiply the scale length by 1/25.
B.)Multiply the scale length by 25.
C.)Divide the scale length by 1/2.5 .
D.)Divide the scale length by 25.
Answer:
B) Multiply scale length by 25!
Step-by-step explanation:
1 : 25
1 * 25 = 25
25 :25
25 = 25
Consider Brainliest! Hope this helped!
What is 2 8 10 +(−3.5) in decimal form? Show your work
Answer:
2806.5
Step-by-step explanation:
Mark me as brainliest
Quadrilateral Q’R’S’T is a dilation if quadrilateral QRST, with the origin as the center of dilation.
What appears to be the scale factor used to create this dilation?
4
0.5
2
0.25
Can someone help me please
Answer:
The slope is [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
If you graph out the points on a line, you can clearly see that the rise between the points on the graph is 2, while the run is 4. This would give you [tex]\frac{2}{4}[/tex], so if you simplify the fraction, you would get [tex]\frac{1}{2}[/tex].
PLEASE HELP!!!!!!!!!!!!!!!!!
Answer:
The photo isn't clear repeat it again
Select all the correct answers.
Terry is an up-and-coming florist who specializes in weddings. He uses 5 roses, 3 daisies, and 4 bundles of green filler to make one bouquet. If r is the cost of a rose, d is the cost of a daisy, and f is the cost of a bundle of green filler, which expression represents the cost for making 75 bouquets?
75r +75d + 75f + 12
(5r + 3d + 4f) + 75
75(5r) + 75(3d) + 75(4f)
75(5r + 3d + 4f)
Answer: The last two are right
Step-by-step explanation: 75x5= $375, 75x3=$225, 75x4=$300.
Add all the sums together and you will get the cost of 75 bouquets, which is $900. - NUMBER 3
5+3+4=12, 12x75=$900
Sorry if I'm wrong first time doing this.
Answer:
option (4) is correct. 75( 5r + 3d + 4f ) expression represents the cost for making 75 bouquets.
Step-by-step explanation:
Given: r is the cost of a rose, d is the cost of a daisy, and f is the cost of a bundle of green filler.
Terry uses 5 roses, 3 daisies, and 4 bundles of green filler to make one bouquet.
Thus, cost of one bouquet = cost of each flower used × number of flower used.
Total cost of one bouquet= 5r+3d+4f
Thus, cost for making 75 bouquets = 75 × cost of one bouquet
= 75( 5r + 3d + 4f )
Thus, option (4) is correct. 75( 5r + 3d + 4f ) is the correct expression to represents the cost for making 75 bouquets
Triangle ABC is dilated to produce triangle A ' B ' C' with scale factor of 3/4. Which describes the relationship between the two triangles?
A - Triangle A ‘ B ‘ C’ is an enlargement of triangle ABC
B - Triangle A ‘ B ‘ C’ is a reduction of triangle ABC
C - Triangle A ‘ B ‘ C’ is congruent to triangle ABC
D - Triangle A ‘ B ‘ C’ is a mirror image of triangle ABC
Please answer this question correctly. Please
Rewrite the absolute value function y=|x|-3 as two linear functions, one that has the domain x<0, and one that has the domain x≥0.
Two linear functions, one that has the domain x < 0 is y = - x - 3
And, one that has the domain x ≥ 0 is y = x + 3.
What is linear expression?A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power.
We have to given that;
The absolute value function is,
⇒ y = |x| - 3
So, The linear function which has the domain x < 0 is,
⇒ y = - x - 3
And, The linear function which has the domain x ≥ 0 is,
⇒ y = x - 3
Learn more about the linear function visit:
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I need help with this. Someone told me that the answer was 52 but idk how to explain how I got it. Can you please help me out. THANK YOU SO MUCH IF YOU DO!
Part A: James bought a cake that weighs 3 and 1 over 4 pounds. How many ounces does the cake weigh? Show your work. (5 points)
[16 ounces = 1 pound]
Answer:
3 pound cake=48 ounces)4 pound cake=64 ounces
Step-by-step explanation:
[16 ounces = 1 pound]-so you got this
James bought a cake that weighed over 4 pounds.
And one that is 3 pounds,so you wanna multiply 16 x 3 and you get 48
So that leaves the 3 pound cake to be 48 ounces
Just like the first one,you wanna multiply 16 x 4 and you get 64