Answer:
He will get back 11 dollars.
Step-by-step explanation:
7 twenty dollar bills is just 7 x 20. That's equal to 140. Now your gonna subtract 140 - 129. You end up with 11 dollars!
Think About the Process You have 20 quarters. You find 40% more quarters in your room. Then
you go shopping and spend 75% of the total number of quarters. Write an expression to represent
the total number of quarters you take with you shopping. Calculate, in dollars, the amount of money
you have left.
What expression represents your total number of quarters?
O A. 20 +(20 - 0.75)
OB. 20+ (20 = 40)
OC. 20+ (20 x 40)
OD. 20+(20 x0.40)
Answer:
A. 1.4*20 quarters
B.14
Step-by-step explanation:
A: 1.you start with 20 quarters= 20*1
2.you find 40% of twenty quarters in your room= 4/100*20=0.4*20
3.20*1+20*0.4= 20*1.4
B:20*1.4=28
28*50/100=14
You and a friend take pictures at a motocross event. Your camera can take 24 pictures in 3.75 seconds. Your friend's camera can take 36 pictures in 4.5 seconds. Evaluate the expression (36 divided by 4.5)/(24 divided by 3.75) to find out how many times faster your friend's camera is than your camera. GIVING BRAINLIST!
Answer:
bro
Step-by-step explanation:
bro i have no idea
12. An initial amount of 100 grams of the radioactive isotope thorium-234 decays according
to
A(t) = 100e^-0.02828t
where t is in years. How long will it be before half of the initial amount has disinte-
grated?
Answer:
Radioactive half-life An initial amount of 100 g of the radioactive isotope thorium-234 decays according to Q ( t ) = 100 e − 0.02828 t where t is in years.
Step-by-step explanation:
-5x-18y=-28 and -10x+9y=-11 solve elimination
Answer:
[tex]\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}[/tex]
[tex]x=2,\:y=1[/tex]
Step-by-step explanation:
Given the equations
[tex]-5x-18y=-28[/tex]
[tex]-10x+9y=-11[/tex]
solving the system of the equation by elimination method
[tex]\begin{bmatrix}-5x-18y=-28\\ -10x+9y=-11\end{bmatrix}[/tex]
[tex]\mathrm{Multiply\:}-5x-18y=-28\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:-10x-36y=-56[/tex]
[tex]\begin{bmatrix}-10x-36y=-56\\ -10x+9y=-11\end{bmatrix}[/tex]
[tex]-10x+9y=-11[/tex]
[tex]-[/tex]
[tex]\underline{-10x-36y=-56}[/tex]
[tex]45y=45[/tex]
[tex]\begin{bmatrix}-10x-36y=-56\\ 45y=45\end{bmatrix}[/tex]
solve 45y=5 for y:
[tex]45y=45[/tex]
[tex]\frac{45y}{45}=\frac{45}{45}[/tex]
[tex]y=1[/tex]
[tex]\mathrm{For\:}-10x-36y=-56\mathrm{\:plug\:in\:}y=1[/tex]
solve [tex]-10x-36\cdot \:1=-56[/tex] for x:
[tex]-10x-36\cdot \:1=-56[/tex]
[tex]-10x-36=-56[/tex]
Add 36 to both sides
[tex]-10x-36+36=-56+36[/tex]
[tex]-10x=-20[/tex]
[tex]\frac{-10x}{-10}=\frac{-20}{-10}[/tex]
[tex]x=2[/tex]
[tex]\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}[/tex]
[tex]x=2,\:y=1[/tex]What’s the x on this triangle ?
Answer:
x = 5
Step-by-step explanation:
x is the length of the hypotenuse of this triangle. The length of one of the legs of the triangle is 3" and that of the other leg is 4".
Applying the Pythagorean Theorem: x^2 = 3^2 + 4^2, or 25
Thus, the length x is +√25, or 5.
x = 5
For which pairs of functions is (f•g)(x)=x?
A.)f(x) = x^2 and g(x)=1/х
B.)f(x) = 2/x and g(x)= 2/x
C.) f(x)= x-2/3 and g(x) =2-3x
D.)f(x)=1/2x-2 and g(x)=1/2x+2
please help question eleven
Ther are 5,290 students at Highline College. If each college classroom holds 50 students, how
many classrooms are needed at Highline College. This is an Order of operation question btw
A graph of an inequality includes an open circle and an
arrow pointing left. Explain how you would use that
information to choose which symbol to use to write an
inequality
Answer: Since the circle is open, the symbol must be < or="">, because the boundary point is not included. The arrow points left, so the solution set includes all values less than the boundary point. I would use < in="" my="">
Step-by-step explanation:
Sample Response
The information that should be selected for symboling the equality function since the boundary point is not involved.
What is an inequality function?It is the relation type where it can graph and show any kind of relationship. rather drawing the lines for linking the dots here we have to shade the large areas for the graph.
Also, there is open circle so here the symbol should be like < or=""> since the boundary point is not involved. Also, the point of arrow should be in left hand side, so it should be lower than the boundary point.
Learn more about circle here: https://brainly.com/question/2031248
a pharmacist measured 70 mL of medication by difference starting with 100 mL. He noted that the graduate used contained 35 mL of glycerin. Calculate the percentage of error incurred in the measurement.
i dont have time to do it right now but here is the percent error equation!
Determine whether each equation represents
proportional relationship. If it does, identify the
constant of proportionality.
a. y = 0.5x - 2
b. y = 1,000x
c. y=x+1
Answer:
b) y = 1,000x
If this incorrect sorry
Brandon bought a jacket on sale for $36. If the jacket originally cost $60, what was the percentage discount for the cost of the jacket?
Answer:
40% discount
Step-by-step explanation:
To find this remember the formula [tex]\frac{discount amount}{original price} = \frac{percent discount}{100}[/tex]
To find the discount amount subtract $36 from $60 which is $24.
[tex]\frac{24}{60} = \frac{x}{100}[/tex] next you have to cross multiply
24*100 = 2400 and 60*x = 60x
Now you have the equation 2400 = 60x
Divide both sides by 60 to isolate the variable
x = 40
I need help please...
John is hanging 146 feet of Halloween lights on the sides of his rectangular fence that encloses his property. The length is five feet less than five times the width. Find the length of the fencing.
Answer:
1347 feet in the space of the suns house
Step-by-step explanation:
A recipe for tropical punch calls for 2 cups of pineapple juice and 3 cups of orange juice. Jo creates a drink by mixing 3 cups of pineapple juice with 4 cups of orange juice
Answer:
Okay?
Step-by-step explanation:
10 + -6 please help me find the answer thanks everyone for helping
Answer:
4
Step-by-step explanation:
10+-6 is the same as 10-6.
You can see this because there is a addition and subtraction symbol in the middle. You can use the KCC (keep, change, change) method to change the symbols from 10+-6 to 10-6. (You keep the 10, change the subtraction and addition symbols).
Answer: its 4
Step-by-step explanation: Because if you put it on a number line from 0 to 10. go right 10 times. then for -6 you go back left 6 times. and get 4. or just 10 - 6 = 4
Slope-intercept equation from graph
of the line
What is the absolute value of the number indicated on the number line below?
A. -2 2/3
B. 2 2/3
C. -2 1/2
D. 2 1/2
Answer:
D, because in between -3 and -2 is -2 1/2, and absolute values are not negative, so the answer is 2 1/2, or D
Answer:
C.
Step-by-step explanation:
find the slope of a line to the line perpendicular to the line containing the points (3,-7) and (4,-3)
Answer:
4
Step-by-step explanation:
m = y2 - y1/x2 - x1
y = -3 - -7 = -3 + 7 = 4
x = 4 - 3 = 1
m = 4/1
answer should be 4... If i am correct hope that helps
A new coffee shop is opening and plans to sell cups of coffee at $4 each. It costs $3 to make each cup of coffee, and the shop needs to buy a machine for $350 to start brewing the coffee. Which expression represents how much money it will cost to make the first cc, cups of coffee?
A. 3c
B. 3c + 350
C. 4c
D. 4c + 350
E. 4c - 350
Answer:
the answer is b
Step-by-step explanation:
Which two division sentences result in the same quotient?
0.148 ÷ 0.02
1.48 ÷ 0.02
1.48 ÷ 0.2
148 ÷ 2
Answer:
the first and third one
Step-by-step explanation:
Is the point (16,20) on line ℓ?
Answer:
YES
Step-by-step explanation:
Find the equation of the line written as, y = kx. The graph shows a proportional relationship between y and x.
Constant of proportionality/unit rate/slope (k) = rise/run = ⁵/4.
Substitute ⁵/4 in y = kx
We would have:
y = ⁵/4x.
Using the equation of the line, we can know if a given point is on the line by plugging the value of x and y coordinates of the point into the equation. If it makes the equation true, then it is a point on the line. If it doesn't make the equation true, then it isn't a point on the line.
Let's plug in (16, 20) into y = ⁵/4x.
Thus substitute x = 16 and y = 20, we have:
[tex] 20 = \frac{5}{4}(16) [/trex]
[tex] 20 = (5)(4) [/trex]
[tex] 20 = 20 [/trex]
It makes the equation true. Therefore, the point, (16, 20) is a point on line l.
How long would it take the two trains to meet?
Answer: 2.5 hours.
Step-by-step explanation:
Find the quotient of -36 / -6
Answer:
6
Step-by-step explanation:
-36/-6 = 6
Answer:
The answer is positive 6.
Step-by-step explanation:
Hope this helps!
Solve each equation algebraically. 2/3x( - 4)=20
Answer:
Step-by-step explanation:
2/3x(-4)=20
2/3x*4=20
8/3x=20
8/3x/8/3= 20/8/3
0.83 but 3 is repeting
if y=4x+3 were changed to y=-4x+3, how would the graph of the new funtion compare to the original
Answer:
graph would go to the left 4 units instead of to the right 4 units then up 3
Step-by-step explanation:
read above
what is 1/8 as a percentage ?HELP
Answer:
12.5%
Step-by-step explanation:
Write 18 as a percent. Divide 1 by . Therefore, the fraction 18 is equivalent to 12.5% .
Find the x−and y−intercepts.
4x − 2y = −8
The x−intercept is
.
The y−intercept is
.
Answer:
(4,-8/5)
Step-by-step explanation:
.............
Answer:
x=y-4/2
Step-by-step explanation:2x-y=-4
2x-4=-8/2
2x=4+4
2x=4-4
What is the point-slope form of a line with slope 4/5 that contains the point
(-2, 1)?
A. y+1 = 4/5(x-2)
B.y+1 = 4/5(x + 2)
C. y-1 = 4/5 (x+2)
D. y-1 =4/5 (x-2)
SUBMIT
Awnser: Its D uhm yea...
Step-by-step explanation:
The point-slope form of a line is (y-y1)=m(x-x1). Therefore, option C is the correct answer.
Given that, slope (m)=4/5 and the point on line=(-2, 1).
What is the point-slope form of a line formula?A slope is, a numerical measure of a line's inclination relative to the horizontal. In analytic geometry, the slope of any line, ray, or line segment is the ratio of the vertical to the horizontal distance between any two points on it (“slope equals rise over run”).
The point-slope form of a line formula is (y-y1)=m(x-x1).
Now, (y-1)=4/5(x+2).
Therefore, option C is the correct answer.
To learn more about the point-slope form of a line visit:
https://brainly.com/question/12743204.
#SPJ2
help pls (picture attached)
Answer:
an = 5 . n - 5
a50 = 245
Step-by-step explanation:
equation: an = 5 . n - 5, with n=0, 1, 2, ...
a50 = 5.50 - 5 = 250 - 5 = 245
