Pablo created the bar model and equation after paying a $9.79 lunch bill with a $20 bill.
A bar diagram. The top bar contains 20.00. The bottom bars contain c and 9.79.
20.00 = c + 9.79
What is the value of c, and what does it represent in this problem?
The value is $10.21, and it shows the cost of Pablo’s lunch.
The value is $29.79, and it shows the cost of Pablo’s lunch.
The value is $10.21, and it shows the change received
The value is $29.79, and it shows the change Pablo received
Answer:
The value is $10.21, and it shows the change received
Step-by-step explanation:
I know for a fact it is 10.21 but since there is no graph and from what you told I believe this is the answer. Brainliest please ???
A small black cloth bag holds two red counters, two green counters, two
blue counters, and two black counters. All are the same size. Without
looking into the bag, what is the probability of drawing a red counter then
a black counter from the bag without replacement? *
Answer:
1/14
Step-by-step explanation:
P(red, then black) = [tex]\frac{2}{8}[/tex] · [tex]\frac{2}{7}[/tex] = [tex]\frac{4}{56}[/tex] = [tex]\frac{1}{14}[/tex] (simplifed form)
Below are Erica’s bowling scores from her last five games.
89, 98, 110, 98, 105
Erica added up all her scores and divided by 5. Which measure of central tendency did she find?
Question 1 options:
Mean
Median
Mode
Range
Answer:
Mean
Step-by-step explanation:
In a game, the probability that a spinner will land on blue is 1/4. How many times would you expect to land on blue if you spin the spinner 8 times?
Answer:
2 times
Step-by-step explanation:
Can you help me find the value of x is.
a. 132
b. 200
c. 228
d. 256
Answer:
C
Step-by-step explanation:
C
72 precent is equal to 80% of a number n, what is n? write your answer as a decimal
Answer:
n=90
Step-by-step explanation:
80% as a decimal is 0.80
0.80n = 72
n = 72/0.80
n = 90
Not my work
what is 5n+15 in distributive property
Answer:
5(n+3)
Step-by-step explanation:
factor both of them
their common number is 5
divide 5 by each of them
5/5=1
15/5=3
32b) What are the like terms in the expression 4y + 5 + 3y? *
Answer:
4y and 3y
Step-by-step explanation:
4y and 3y are like terms because they have y after the number. Every time when a math problem ask you to combine like terms, it'll be the ones that have the same variables or powers.
Which of the following transforms y= x2
the
graph of y = (x + 5)2 ?
a translation 5 units to the right
a translation 5 units to the left
a translation 5 units down
a translation 5 units up
hing
Answer:
a translation 5 units to the left
Step-by-step explanation:
Answer
Part 1: B. 5 units left
Part 2: C. 7 units down
Hope it helps!
Have an amazing day!!
^ω^
-- FTS
can someone please PLEASE help! i need this rt. now! i’ll mark brain list!
Answer:
9 is justin is 65 marcella is 63 and aimee is 61
11 is 20%+2
hope that helped
THE QUESTION IS ON THE PICTURE!
Answer:
24/36
Step-by-step explanation:
Have a nice day..........
(5x + 2)
72°
I need help pls fast asap
69818247034ue8e83884647
Answer:
The answer is probably = 360° x+ 144°
help with math problem
Answer:
1.No- that just means that the numbers on that side are smaller
Step-by-step explanation:
which number line shows the solution to the inequality? y-2 > -5
Answer:
Step-by-step explanation:
It's C.
the median of 2,3,3,4,5,6,6,6,7,9
Answer:
11/2
Step-by-step explanation:
2,3,3,4,5,6,6,6,7,9
5+6/2
11/2
hope it's helpful ❤❤❤❤❤❤
THANK YOU.
what is 5 to the power of 9 equal to ?
Answer:
1953125 I calculated it... Thanks for the points
Step-by-step explanation:
5^9
=1953125 that's the answer trust me
which expression below me is equivalent to -3x+5(x+2)?
A.2x+2
B.-x+2
C.2x+10
D.-8x+10
Answer:
C)
Step-by-step explanation:
First use distributive property: a(b +c) =a*b +a*c
-3x + 5(x +2) = -3x + 5*x +5*2
= -3x + 5x + 10 {Combine like terms}
= 2x + 10
(-3x) and 5x are like terms
i need help solving this question
Answer:
4 1/6
Step-by-step explanation:
First, you have to convert any mixed numbers to fractions.
Then your initial equation becomes:
25/8÷3/4
Second, you have to apply the fractions formula for division.
= 25 x 4
------------- (You will be dividing.)
8 x 3
=100/24
And if you simplify 100/24, the answer will become:
4 1/6
I hope this helps. :)
Jakavion is going to cook brownies in a rectangular pan. The pan measures 11 in. long by 8 in. wide by
3 in tall. What is the surface area of the pan?
Answer:
290
Step-by-step explanation:
2lw + 2lh + 2wh
2×11×8+2×11×3+2×8×3
A bag is fſlled with green and blue marbles. There are 61 marbles in the bag. If there are 5 more green
marbles than blue marbles, find the number of green marbles and the number of blue marbles in the bag.
Equation (use x as your variable):
The number of blue marbles is:
The number of green marbles is:
Answer: Alright So, A bag is filled with green and blue marbles. There are 48 marbles in the bag. If there are 38 more green marbles than blue marbles, find the number of green marbles and the number of blue marbles in the bag.
------
Equations:
g + b = 48 marbles
g = b + 38
------
Substitute for "g" and solve for "b"::
b+38 + b = 48
2b = 10
b = 5 (# of blue marbles)
g = b+38 = 43 (# of green marbles)
Step-by-step explanation:
KLMN is a Parallelogram. LK = 20 cm and KM= 24.
K
L
If KL MN is also a rectangle, find the following measures:
NM =
LN=
QM=
KN=
N
M
Answer:
NM =LK=20cm(side of parallelogram are equal)
LN=KM=24cm(diagonal of parallelogram are equal)
QM=1/2×24=12cm(diagonal bisect each other)
KN=√(24²-20²)=13.26cm(by Pythagoras theorem)
what is the answer to 6y>8
Answer:
y > 4 3
Step-by-step explanation:
Consider Carmen’s plans.
Parallel lines k and l are crossed by transversal t. Line m crosses lines t, k, and l. The angles formed by lines k, t, and m, clockwise from top left are 2, 1, blank, blank, blank (6 x + 5) degrees; formed by lines l and t are blank, (7x minus 4) degrees, blank, blank; formed by lines l and m are 48 degrees, blank, blank, blank.
Carmen used her knowledge of angle relationships to find the value of x in the diagram.
What is the value of x?
x = 5
x = 9
x = 13
x = 16
Answer:
9
Step-by-step explanation:
just did the assignment
9+x=-11
find the variable
Answer:
x=-20
Step-by-step explanation: since 9 is being added, subtract it from both sides so x=-20 that was easy :>
How many solutions does the following. system of equations have? 6x-3y= -9 y=2x+3. one solution, infinitely many solutions or no solution?
Answer:
D on edg
Step-by-step explanation:
The ratio of destroyers to battleships in the navy is 20:15. If the total number of boats is 105, how many battleships are there?
Answer:
45
Step-by-step explanation:
20:15 the ratio can be turned to a fraction
20/15
simplify
4/3
so now add the numerator and the denominator and get 7
then do 105/7=15
and then you do
4x15=60 (Destroyers)
3x15=45 (Battleships)
45 is your answer
A city is growing at a rate of 8 percent per year. What multiplier is used to find
the new population each year?
Answer:
1.08
Step-by-step explanation:
This is because it grows upon itself so it starts with a multiplier of 1, but it is growing with .08 (8 percent) on itself so you add these two numbers together to get 1.08
Lines a b c and d are shown below. Which lines are parallel? Which line are perpendicular? Explain and jutsify your answer using slopes
Answer:
Lines A and C are parallel
Lines B and D are perpendicular
Step-by-step explanation:
Given
See attachment for lines A to D
Required
Determine the parallel and perpendicular lines
To start with, we calculate the slope of each line.
Line A
The points on line A are:
[tex](x_1,y_1) = (3,-4)[/tex]
[tex](x_2,y_2) = (-1,2)[/tex]
Calculate the slope (m)
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]m = \frac{2 - (-4)}{-1 - 3}[/tex]
[tex]m = \frac{2 +4}{-4}[/tex]
[tex]m = \frac{6}{-4}[/tex]
[tex]m_1 = -\frac{3}{2}[/tex]
Line B
[tex](x_1,y_1) = (-1,8)[/tex]
[tex](x_2,y_2) = (2,6)[/tex]
Calculate the slope (m)
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]m = \frac{6 - 8}{2 -(-1)}[/tex]
[tex]m = \frac{-2}{2 +1}[/tex]
[tex]m_2 = -\frac{2}{3}[/tex]
Line C
[tex]y - 9 = -\frac{3}{2}(x + 8)[/tex]
Open bracket
[tex]y - 9 = -\frac{3}{2}x -\frac{3}{2}* 8[/tex]
[tex]y - 9 = -\frac{3}{2}x -3* 4[/tex]
[tex]y - 9 = -\frac{3}{2}x -12[/tex]
Make y the subject
[tex]y = -\frac{3}{2}x -12+9[/tex]
[tex]y = -\frac{3}{2}x -3[/tex]
The slope intercept of an equation is: [tex]y = mx + b[/tex]
Where
[tex]m = slope[/tex]
By comparison:
[tex]m_3 = -\frac{3}{2}[/tex]
Line D
[tex]12x - 8y = 40[/tex]
Subtract 12x from both sides
[tex]12x-12x - 8y = -12x+40[/tex]
[tex]- 8y = -12x+40[/tex]
Divide through by -8
[tex]\frac{- 8y}{-8} = \frac{-12x}{-8}+\frac{40}{-8}[/tex]
[tex]y= \frac{12x}{8}-\frac{40}{8}[/tex]
[tex]y= \frac{3}{2}x-5[/tex]
The slope intercept of an equation is: [tex]y = mx + b[/tex]
Where
[tex]m = slope[/tex]
By comparison:
[tex]m_4 = \frac{3}{2}[/tex]
So, the slopes of the lines are:
[tex]m_1 = -\frac{3}{2}[/tex] [tex]m_2 = -\frac{2}{3}[/tex] [tex]m_3 = -\frac{3}{2}[/tex] [tex]m_4 = \frac{3}{2}[/tex]
Lines with the same slope are parallel.
So:
Lines A and C with slope of [tex]-\frac{3}{2}[/tex] are parallel
Lines with the following relationship are perpendicular:
[tex]m * M = -1[/tex]
Lines B and D are perpendicular because:
[tex]-\frac{2}{3} * \frac{3}{2} = -1[/tex]
[tex]-\frac{6}{6} = -1[/tex]
[tex]-1 = -1[/tex]
En la tienda de mascotas "Animalo-T", se desea elevar un elefante de 2,900 kg utilizando una elevadora hidráulica de plato grande circular de 75 cm de radio y plato pequeño circular de 13 cm de radio. ¿Calcula cuánta fuerza hay que hacer en el émbolo pequeño para elevar al paquidermo?
Answer:
Se requiere una fuerza de 854.473 newtons sobre el émbolo pequeño.
Step-by-step explanation:
Por el Principio de Pascal se conoce que el esfuerzo experimentado por el elefante es igual a la presión ejercida por el plato pequeño. Es decir:
[tex]\frac{F_{1}}{A_{1}} = \frac{F_{2}}{A_{2}}[/tex] (1)
Donde:
[tex]F_{1}[/tex] - Fuerza experimentada por el elefante, medida en newtons.
[tex]F_{2}[/tex] - Fuerza aplicada sobre el plato pequeño, medida en newtons.
[tex]A_{1}[/tex] - Área del plato grande, medida en metros cuadrados.
[tex]A_{2}[/tex] - Área del plato pequeño, medida en metros cuadrados.
La fuerza aplicada sobre el plato pequeño es:
[tex]F_{2} = \left(\frac{A_{2}}{A_{1}} \right)\cdot F_{1}[/tex]
La fuerza experimentada por el elefante es su propio peso. Por otra parte, el área del plato es directamente proporcional al cuadrado de su diámetro. Es decir:
[tex]F_{2} = \left(\frac{D_{2}}{D_{1}} \right)^{2}\cdot m\cdot g[/tex] (2)
Donde:
[tex]D_{1}[/tex] - Diámetro del plato grande, medido en centímetros.
[tex]D_{2}[/tex] - Diámetro del plato pequeño, medido en centímetros.
[tex]m[/tex] - Masa del elefante, medida en kilogramos.
[tex]g[/tex] - Aceleración gravitacional, medida en metros por segundo cuadrado.
Si sabemos que [tex]D_{1} = 0.75\,m[/tex], [tex]D_{2} = 0.13\,m[/tex], [tex]m = 2900\,kg[/tex] y [tex]g = 9.807\,\frac{m}{s^{2}}[/tex], entonces la fuerza a aplicar al émbolo pequeño es:
[tex]F_{2} = \left(\frac{0.13\,m}{0.75\,m} \right)^{2}\cdot (2900\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)[/tex]
[tex]F_{2} = 854.473\,N[/tex]
Se requiere una fuerza de 854.473 newtons sobre el émbolo pequeño.
please helpppp !!!!!
Answer:
The first one
Step-by-step explanation:
Negative b plus and minus the square root of b squared minus 4ac divided by 2a
