Answer:
One hour after starting
Step-by-step explanation:
Let Teri walk at a rate of 2 miles per hour in time , t + 0.5, since it is 30 minutes ahead and 30 minutes = 0.5 hours, the distance he moves is d = 2(t + 0.5). Also, since Cindy moves at a rate of 3 miles per hour, and starts at time t, the distance d' she moves is d' = 3t.
Now, when they catch each other, the distance moved is the same.
So, d = d'
2(t + 0.5) = 3t
expanding the brackets, we have
2t + 2 × 0.5 = 3t
2t + 1 = 3t
collecting like terms, we have
3t - 2t = 1
simplifying, we have
t = 1
So, Cindy will catch Teri one hour after starting.
In 1992, Jason bought a gallon of gas for $1.17. Yesterday, he bought a gallon of gas for $2.21. What is the percentage increase of the price of a gallon of gas from 1992 to yesterday? If necessary, round to the nearest tenth of a percent.
Please help really fast!!!
Answer:
The answer is
[tex] \sqrt{65} [/tex]
Step-by-step explanation:
We need to find the distance as instructed.
Its formula is:
[tex]d = \sqrt{(x_2 - x_1) ^{2} + (y_2 - y_1)^{2} } [/tex]
Let's plug in according to the formula and solve.
[tex]d = \sqrt{(x_2 - x_1) ^{2} + (y_2 - y_1)^{2} } \\ d = \sqrt{( - 7 - 1) ^{2} + (2 - 3)^{2} } \\ d = \sqrt{64 + 1} \\ d = \sqrt{65} [/tex]
Which statement does NOT correctly describe the order of operations (PEMDAS)?
A.Multiplication always comes before addition.
B.Multiplication is always before division.
C.Solve exponents after parenthesis.
DSolve subtraction after addition unless subtraction is on the left side of addition.
(Help meh A.P.S)
Answer:
I think it’s D
Step-by-step explanation:
can someone help me my brain hurts
Answer:
The correct answer is: Option 2
[tex]y+1 = \frac{8}{9}(x+4)[/tex]
Step-by-step explanation:
Point-slope form of an equation is given by:
[tex]y-y_1= m(x-x_1)[/tex]
Here m is the slope of the line and (x1,y1) is the point from which the line passes
Given points are:
(-4,-1) and( 5,7)
Slope is given by the formula:
[tex]m = \frac{y_2-y_1}{x_2-x_1}\\m=\frac{7-(-1)}{5-(-4)}\\m = \frac{7+1}{5+4}\\m = \frac{8}{9}[/tex]
Now we will put the first point and slope in general form of equation of line
[tex]y-(-1) = \frac{8}{9}(x-(-4))\\y+1 = \frac{8}{9}(x+4)[/tex]
Hence,
The correct answer is: Option 2
[tex]y+1 = \frac{8}{9}(x+4)[/tex]
4 The function c(t) = 1.5t + 15 models the cost of a medium pizza, in dollars), based on the number of toppings, (t). Which of the following statements are true based on the function? Select all that apply.
Answer:
gay
Step-by-step explanation:
(-7,-1) (-1,-7) (3,-11) (7,-15) What is the range of the set of ordered pairs above?
Answer:
The range of the set of ordered pairs are [tex]Y =\{-1,-7,-11,-15\}[/tex].
Step-by-step explanation:
Let [tex](x,y)[/tex] be an ordered pair, where [tex]x[/tex] corresponds to an element of the domain and [tex]y[/tex], an element of the range. Hence, the range of the set of ordered pair are:
[tex]Y =\{-1,-7,-11,-15\}[/tex]
The range of the set of ordered pairs are [tex]Y =\{-1,-7,-11,-15\}[/tex].
HELP 55 POINTS!
Determine if each set of ordered pairs represents a function.
(2, 3). (6,-5), (-1,3)
(1, 9), (-3, -2) (1, -4)
(7,4). (0, 9), (2, -2)
(0, 3). (0, 7), (4, 0)
(-6, 5), (-5,6), (8, 2)
Function
Not a Function
Answer:
(2,3) function
(1,9) not
(7, 4) function
(0,3) not
(-6,5) function
I need help on this question and I don't really know where to start can somebody help me?
Answer:
C
Step-by-step explanation:
Answer:
1:4, meaning 1/4 section is grey. 100/4 is 25.
H is correct
Step-by-step explanation:
The first column contains five pairs of relationships. Determine if each pair forms
a proportional relationship. Mark *Proportional" or "Not Proportional" for each
relationship in the table on your answer document.
HELP ME WITH MATH HOMEWORK please 11points㋛㋛
Answer:
7. Option B:40 is the correct answer.
8. Option D: y = 40x+75 is the correct answer.
Step-by-step explanation:
Given that:
Charges per hour = $40
Fee charged by repairman = $75
x = number of hours
y = total fee
According to given statement;
y = 40x+75
The standard equation is
y = mx + b
On comparing;
Slope of the line is given by m, therefore
Slope = m = 40
Hence,
7. Option B:40 is the correct answer.
8. Option D: y = 40x+75 is the correct answer.
Can someone answer for E please? This is my 34th question and this is probably easy but my brain cant handle any more. Will mark brainliest
Step-by-step explanation:
4/3 = -6e - 5/3
6e = -4/3 - 5/3
6e = -9/3 = -3
e = -0.5
Answer:
The equation is always false
Step-by-step explanation:
Which value could replace x in the table?
O 30-gtg
O 3(30 -9)
O 30-g(3)
O 30-g+3
Pls help ;(
He bought 10 pounds of Golden apples and 20 pounds of Fuji apples
which costs him $20 and $60.
What is a linear equation?A linear equation is an algebraic equation of degree one. In general, the variable or the variables(in the case of a linear equation in two variables) the variables are x and y.
Let Fuji apples be F and Golden apples be G.
In total, he bought 30 pounds of apples.
∴ F + G = 30...(i)
And,
He bought 3 pounds of Fuji apples and 2 pounds of Golden apples.
3F + 2G = 80...(ii)
Now, multiplying eqn(i) by 3 and subtracting from (ii) we get G = 10 and hence F = 20.
So, he bought 10 pounds of Golden apples and 20 pounds of Fuji apples
which costs him $20 and $60.
learn more about linear equations here :
https://brainly.com/question/14056312
#SPJ2
Answer the following algebraic equation:
3x-5+9(72/8)+4=2(4x-6)
Point Value- 20 points
Answer:
X=18.4
Step-by-step explanation:
3x-5+9(72/8)+4=2(4x-6)
3x-5+9(9)+4=2(4x-6)
3x-5+81+4=8x-12
3x-5+85=8x-12
3x+80=8x-12
3x-8x=-12-80
-5x=-92
x=-92/-5
x=18.4
Checking our work:
3(18.4)-5+9(72/8)+4=2(4(18.4)-6)
55.2-5+9(9)+4=2(73.6-6)
55.2-5+81+4=2(67.6)
50.2+85=135.2
135.2=135.2
HELP ASAP PLS!!!
p(x)=x^3 : m(x)= 4p(x-3)-5
Describe the transformation(s) performed on p(x) that produced m(x).
Then, write a specific equation for m(x).
It cost Kaylee $7.26 to send 66 text messages. How much does each text cost to send?
Answer:
0.11
Step-by-step explanation:
7.26 / 66 = 0.11
hope this helps <3
A college has a financial aid formula that applies to applicants whose family's income is below a certain threshold. The financial aid can be determined by the function f(x)=15000+3000x, where x is the number of siblings (including half siblings and step siblings) that the applicant has living in their household. Find and interpret the given function values and determine an appropriate domain for the function.
PLZ HELP!
Answer:
This equation shows you how financial aid increases $3000 for every additional sibling, starting at $15,000.
Step-by-step explanation:
This equation means that for every sibling there is an additional $3000 in financial aid. When there are no siblings there is an automatic $15000 in financial aid.
Since you can't have "negative number" of siblings, the domain must begin with 0. You can have a lot of siblings, so let's put the end of domain as infinity.
Domain = [0, ∞)
If you substitute in this domain into the equation, the range will be the output. The least will be $15,000 and the most will be infinity as well.
Range = [15000, ∞)
please give thanks and click heart button :)
help please !! thank you so much
Answer:
Yes it is a proportional relationship
Step-by-step explanation:
That is because 20 and 10 are your original and 40 and 20 and 60 and 30 match with it.
Given g(x)=2x+3, solve for x when g(x)=3
Answer:
-3/2
Step-by-step explanation:
I think the answer is between 1 and 2
Answer:
1111111111111111111111111
The table shows the derivation of tan(2x). Select the correct reason for each step.
Reason 1 is:
Reason 2 is:
Reason 3 is:
Answer:
Reason 1 is: Addition
Reason 2 is: Tangent sum identity
Reason 3 is: Simplify
Step-by-step explanation:
I just did it on edge 2020
Answer:
Reason 1 is: Addition
Reason 2 is: Tangent sum identity
Reason 3 is: Simplify
Step-by-step explanation:
What is 10% of 60? Explain how you calculated your answer
Answer:
6
Step-by-step explanation:
10 percent decimal form = 0.10
60 * 0.10 = 6
6. Henry examined the table that represents values satisfying the function shown
below.
fax)
0 -18
1
2
4.
3
4.
-6
5 -8
6 0
7 24
8 70
Ollo
Based on the information in the table, select all the key features that are correct.
The y-intercept of the graph of the function is at (0, -18)
The maximum value of the function is 4.
A local minimum is located within the interval 3 sxs6
A local maximum is located within the interval 1
The function is increasing within the interval 6 sxs8
n
Answer:
The maximum value of the function is 4
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Yesterday, the temperature at noon was 22.5 degrees. By midnight, the temperature had decreased by 27.7 degrees. What was the temperature at midnight?
Answer:
54.23
Step-by-step explanation:
If that not a choice simpfly
Please help! the photo is below
Answer:
8 Green beads
Step-by-step explanation:
12 divided by 3 = 4
4 times 2 = 8
What is the slope of the line?
Answer:
Slope = 3/4
Step-by-step explanation:
sorry it’s late. Pls give brainliest.
Evaluate
f(x) = 3x + 10 over the domain {0, 6, 12, 24}.What is the range of f(x)?
Answer:
10, 28, 46, 82
Step-by-step explanation:
this could be wrong im not very good with domain and range
What is the value of
-8(17-12)
————
-2(8-(-2)
-4
-2
2
4
Answer:
C. 2
Step-by-step explanation:
(-8(17-12)/(-2(8-(-2) = 2
Express z 1 = 17 [ cos ( π ) + i sin ( π ) ] z 1 =17[cos(π)+isin(π)]z, start subscript, 1, end subscript, equals, 17, open bracket, cosine, left parenthesis, pi, right parenthesis, plus, i, sine, left parenthesis, pi, right parenthesis, close bracket in rectangular form. Express your answer in exact terms.
Answer:
z1 = -17 + 0i
Step-by-step explanation:
Given the complex number z1 =17[cos(π)+isin(π)], we are to express it in rectangular form as shown;
Since cos(π) = -1 and sin(π) = 0, the equation becomes;
z1 =17[cos(π)+isin(π)]
z1 =17[(-1)+i(0)]
z1 = 17(-1 + 0i)
z1 = -17 + 0i
Hence the complex number in rectangular form is expressed as z1 = -17 + 0i
The coastline of the Atlantic Coast is 2,069 miles
long. Approximately 10% of the coastline lies in New Hampshire. About
how many miles of the coastline lie in New Hampshire? Explain how you
estimated
with workkk
Answer:
23 miles
with workkk
Step-by-step explanation:
2,069-------90% (0,9)
x ------------- 10% (0,1)
x= 2.069x0,1 : 0.9= approximately 23 miles
Jeffery and carrie deposit 800.00 into an savings account which earns 4%interest compounded quarterly they want to use the money in the account to go on a trip in 2 years how much will they be able to spend
Answer:
866.29Step-by-step explanation:
Deposit = 800Interest rate = 4% compounded quarterlyTime = 2 yearsNumber of compounds:
2 / 1/4 = 8Saving amount at the end of 2 years:
800*(1 + 0.04/4)^8 = 866.29