Answer: 12.5
Step-by-step explanation:
He made 50 dollars in 4 weeks so divide that equally amongst each week you get 12.5
The rate of change of money in his savings account per week is 12.5
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
Given:
We have, After 4 weeks, he had $350 dollars and after 9 weeks, he had
$412.50.
So, We can consider it as (4, 350) and (9, 412.5)
So, the rate of change is
=(412.5-350)/ (9-4)
= 62.5
= 12.5
Hence, the rate of change is 12.5.
Learn more about slope here:
https://brainly.com/question/3605446
#SPJ2
3. Emma purchased a bicycle at a garage sale for $56. She later sold the bicycle online for $85.What was the percent increase of the price of the bicycle?
Answer:
51.7857143% increase is the percent increase of the price of the bicycle.
Step-by-step Explanation on finding percent increase using this question:
Formula needed:
% increase = 100 x (final-initial)/ | initial |
1. % increase = 100 x (85-56)/56
2.% increase = 100 x 29/56
3. % increase = 100 x 0.517857143
4. % increase = 51.17857143 (final answer)
Round if told by directions to do so.
Carlita saw 5 times as many robins as she did cardinals while bird watching. She saw a total of 36 birds. How many more robins did she see than cardinals?
Answer: Calita saw 30 Robins and 6 Cardinals
Step-by-step explanation:
Step 1
writing the mathemathecal expression becomes
Let robins be represented as R
and Cardinals be represented as C
so our first equation becomes
R+C = 36----- eqn 1
but she saw 5times as many robins as cardinals, with a total of 36 birds making us have
Therefore R= 5C
5C +C= 36------- eqn 2
STEP 2--- solving equation 2
5C+C = 36
6C= 36
C= 36/6=6
Puting the valueof C=6 in equation 1 becomes
R+C= 36
R+6=36
R=36-6= 30
R=30
Therefore Calita saw 30 Robins and 6 Cardinals
An object is dropped off a cliff and falls freely. It speeds up as it falls toward the ground.
The graph below shows the velocity in meters per second (m/s) of the object (denoted by the vertical axis) as a function of time in seconds (denoted by the horizontal axis). Note that the relationship is linear.
This relationship is given by the equation, v = gt. In this equation, g is the acceleration due to gravity, t is the number of seconds, and v is the velocity of the falling object. Note that g is a constant.
Find and interpret the meaning of the initial value and the rate of change in this context.
Answer:
The initial value is 0. That means that object’s initial velocity 0 m/s. The rate of change is 9.8. That means the acceleration due to gravity is 9.8 m/s 2.
Hope this helps :)
The price of Stock A 9 AM was $12.71. Since then, the price has been increasing at the rate of $0.05 each hourAt noon the price of Stock 8 was \$13.46 . To decrease at the rate of by $0.12each hour. If the two rates continue, in how many hours will the prices of the two stocks be the same?
Answer:
4.4 hours
Step-by-step explanation:
Let the number of hours be represented as h
The price of Stock A 9 AM was $12.71. Since then, the price has been increasing at the rate of $0.05 each hour
$12.71 + $0.05 × h
12.71 + 0.05h
At noon the price of Stock 8 was \$13.46 . To decrease at the rate of by $0.12each hour.
$13.46 + $0.12 × h
13.46 - 0.12h
If the two rates continue, in how many hours will the prices of the two stocks be the same?
12.71 + 0.05h = 13.46 - 0.12h
0.05h + 0.12h = 13.46 - 12.71
0.17h = 0.75
h = 0.75/0.17
h = 4.41176470588 hours
Approximately = 4.4 hours
The prices of the two stocks be the same in 4.4 hours
You earned a 75% on a science test. You answered 18 questions correctly. How many
questions were on the test?
Answer:
24 questions
Step-by-step explanation:
18/3=6. This is 25% of the questions
4*6=24. This is 100% of the questions
Can someone answer this problem
Answer:
-9
Step-by-step explanation:
[tex](f^-^1o g^-^1)(-13)\\f^-^1(g^-^1(-13))\\g^-^1(-13) = -7[/tex]
the inverse function is essentially where the inputs and outputs are swapped
[tex]f^-^1(-7) = -9[/tex]
A triangle has vertices at A(–2, 4), B(–2, 8), and C(6, 4). If A prime has coordinates of (–0.25, 0.5) after the triangle has been dilated with a center of dilation about the origin, which statements are true? Check all that apply.
Answer:
The scale factor is One-eighth
The coordinates of C prime are (0.75, 0.5).
The coordinates of B prime are (–0.25, 1).
Step-by-step explanation:
A triangle has vertices at A(–2, 4), B(–2, 8), and C(6, 4). If A prime has coordinates of (–0.25, 0.5) after the triangle has been dilated with a center of dilation about the origin, which statements are true? Check all that apply. The coordinates of C prime are (0.75, 0.5). The coordinates of C prime are (1.5, 1). The scale factor is One-eighth. The scale factor is 8. The scale factor is One-fourth. The scale factor is 4. The coordinates of B prime are (–0.25, 1). The coordinates of B prime are (–0.5, 2).
Solution:
Transformation is the movement of a point from its initial location to a new location. If an object is transformed then all its points are also transformed. Types of transformation are reflection, dilation, rotation and translation.
Dilation is the enlargement or reduction in size of an object. If a point X(x, y) is dilated about the origin by a factor k, its new location is X'(kx, ky)
Triangle ABC with vertices at A(–2, 4), B(–2, 8), and C(6, 4) is dilated to give A'(-0.25, 0.5)
kA = A'
(-2k, 4k) = (-0.25, 0.5)
-2k = -0.25, hence k = 1/8
Therefore the scale factor is 1/8 (one- eight)
The new location of the vertices is B'(-0.25, 1), C'(0.75, 0.5)
Answer:
a, c, and g
Step-by-step explanation:
just took the test on edge. hope this helps :)))
What is the answer please need help
Answer:
130
Step-by-step explanation:
so you take 35+95=130
then you take 180-130=50 to get the other angle in the triangle
then to get the missing angle you do 180-50=130
so that is the missing angle
Three consecutive odd integers are such that the sum of the smallest and the largest is 86. Find the value of the 2nd number.
Answer: The value of the second number is 43
Step-by-step explanation:
x+x+4=86
2x+4=86
2x=82
x=41
41+2=43
I hope you find this helpful :))
Choose the model that verifies the quotient
1
5
÷ 5.
An area model with 1 shaded part and 4 unshaded parts.
An area model with 5 shaded parts and 20 unshaded parts.
An area model with 5 separate shaded parts.
An area model with 5 shaded parts.
Answer:
An area model with 1 shaded part and 4 unshaded parts.
Step-by-step explanation:
15 ÷ 5 area model
____2_+__1___=3
5 | 10 5
Answer:
An area model with 5 shaded parts and 20 unshaded parts.
Step-by-step explanation:
alck helped me with this
A person rents a scooter that travels at a average speed of 12 km/hr hoping to reach a beach 20 km away . How much time will it take to reach the beach
Answer:
1.5
Step-by-step explanation:
Sabastian bought some apples. Brandon bought 12 apples. He bought 2 times as many as Sabastian. Write an equation and solve for the unknown number of apples Sbastian bought.
Answer:
Step-by-step explanation:
2X =12
x=6
sebastian tendia 6 manzanas
10 m = blank cm
answers
A 100
B 1,000
c 10
d 50
Answer:
B. 1,000
There is 100 cm in 1 meter. So 10x100=1000 :)
4. During a book sale, Alex sold 1 book for 55.00,
2 books for $4.50 each, and 4 books for $2.50 each.
Dana sold 3 books for $1.50 each and 2 books for
$5.00 each. What was the most frequently occurring
sale price for these 12 books?
(A) $2.50
(B) $4.00
(C) $4.25
(D) $4.50
(E) $5.00
Answer: A.) 2.50
Step-by-step explanation:
4 books sold for $2.50, which is the most books for one set price.
Write a linear equation that is solved by both (-6,2) and (0,-4)
The linear equation that is solved by both (-6,2) and (0,-4) is y = -x - 4
Using the slope intercept formula for linear equation,
y = mx + bwhere
m = slope
b = y-intercept
Therefore, lets find m
(-6,2) and (0,-4)
m = -4 - 2 / 0 - (-6) = -6 / 6 = - 1
Lets find b using (0,-4)
y = mx + b
-4 = -1(0) + b
b = -4
There the linear equation in slope intercept form will be as follows
y = -x - 4read more: https://brainly.com/question/17545515?referrer=searchResults
What’s the perimeter. Need help immediately
Answer:
20x^2-12x-20
Step-by-step explanation:
3x^2-7x+2 + 3x^2-7x+2 + 7x^2+x-12 + 7x^2+x-12
simplify
20x^2-12x-20
A principal decides to survey the parents at her school to find out their opinion on
standardized testing. She calls randomly-chosen parents between 4:00 and 5:00 P.M.
every day for a week and collects data on their responses. Identify the population
and the sample. Give a reason why the sample could be biased.
Oa)
Population: All parents who respond to the survey
Sample: All parents with students at the school
Possible Bias: The parents who answered the phone may not be
representative of the whole population because younger parents are more
likely to answer the phone than older ones.
b)
Population: All parents with students at the school
Sample: All parents who respond to the survey
Possible Bias: Parents who are at home between 4:00 and 5:00 P.M. may not
be representative of the whole population.
Oc) Population: All parents with students at the school
Sample: All parents who respond to the survey
Possible Bias: Some parents do not like a particular teacher.
d)
Population: All parents who respond to the survey
Sample: All parents with students at the school
Possible Bias: Some of the people contacted did not answer every question
Answer: B
Population: All parents with students at the school
Sample: All parents who respond to the survey
Possible Bias: Parents who are at home between 4:00 and 5:00 P.M. may not be representative of the whole population.
PLS HELPPP!!! ITS' IMPORANTANT!
Below
Answer:
1st year value =45$ 2nd year value=45+2.80$=47.80$ 3rd year value=47.8+2.80$=50.60$ 4th year value=50.60+2.80=53.40$ 5th year value=53.40+2.80=56.20$ ater 5 years value of share becomes 56.20$ or share after 5 years= 45+4*2.80=45+11.20=56.20$
Hope i helped plz mark brainiest if you want
Which of the following is a zero for the function f(x) = (x + 3)(x − 7)(x + 5)?
Answer:
-3, 7, -5
Step-by-step explanation:
Because of the zero-product-property, we can set each of the groupings to 0, to get each of our 3 zeroes.
x+3=0, x=-3
x-7=0, x=7
x+5=0, x=-5
You are buying a pair of sneakers for $ 120. You have a coupon to save 45 %. How much will the sneakers cost ?
Answer:
$66
Step-by-step explanation:
→ Work out 45% as a multiplier
100 - 45 = 55 ⇒ 55 ÷ 100 = 0.55
→ Multiply the multiplier by the price
0.55 × 120 = $66
Answer:
54
Step-by-step explanation:
120 times 45 equals 5400 divided by 100 equals $54
There are 3 white tiles for ever 5 shaded tiles.There are 40 tiles all together.How many tiles are white?How many tiles are shaded?
Answer:
25 shaded tiles and 15 white tiles
Step-by-step explanation:
Added up these all make 40 tiles, making them the only answer. Hope this helps.
Mr. Diaz decreased the speed of his car by 40 miles per hour over a period of 10 seconds. Find the average change in speed each second
Answer: the answer is 3 mph/second
Step-by-step explanation:
At the end of March, a computer company
has a net worth of -$14,587. By the end of
December of the same year, the company's
net worth had increased
by
$28,465.
What was the company's net
worth at the end of December?
Answer:
$12,088 dollars
Consider each graph shown. Determine the slope of each line
and then use similar triangles to justify that the slope is the
same between any two points.
Answer:
18,1,18
Step-by-step explanation:
The slope of a line from the given graph is 4 units.
From the given graph, vertical line (rise) = 16 and horizontal line (run) = 4.
What is slope of a line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
Now, slope = Rise/Run
⇒ slope = 16/4
= 4 units
Therefore, the slope of a line from the given graph is 4 units.
To learn more about the slope of a line visit:
https://brainly.com/question/14511992.
#SPJ2
f (x)= x + 2
f (10) =
anyone knows this cuz i need help!?
Answer:
I think its D
Step-by-step explanation:
im not sure correct me if im wrong thanks
Answer:
C
Step-By-Step explanation:
Yes, the square root of 12 is irrational.
Hurry pls I need to fine the difference of the equation
Answer:
i think it is 12-4i
Step-by-step explanation:
since the negative multiples if everything in the second brackets if i remeber
so it is
5+7
and
8-12
Answer:
C: 12 - 4i
Step-by-step explanation:
when you subtract two phrases its the same as when you add two mathematical phrases by combining like terms except you distribute the - sign into the parenthesis so the signs flip.
hope this helps :))
A 40-degree angle is translated 5 inches along a vector. What is the angle measurement l, in degrees, of the image?
Answer:
20
Step-by-step explanation:
Never same bed rn he drum he’s gym next D
Ritus mother's age is 7 years more than two time Ritus age. Ritus mother is 37 years old. Set up an equation to find Ritus age (Take Ritus age to be 'x' years)
Answer:
2x + 7 = 37
Ritu's age = 15 years
Step-by-step explanation:
Given:
Ritu's mother age = 37
Find:
Ritu's age
Assume;
Ritu's age = x
So,
2x + 7 = 37
2x = 30
x = 15
Ritu's age = 15 years
The base area of a prism is 5 cm2. Find the height of the prism if its
volume is 24 cm. -
Answer:
4.8 cm
Step-by-step explanation:
What we know: V= 24 cm3 and b= 5 cm2
Formula: V= bh
24cm3= (5cm2)h
4.8 cm= h