Robert and his younger sister are selling gift wrap to raise funds for the middle school band. Robert's sales are 2.5 times his sister's sales. Their total sales together can be represented by the equation x+2.5x=63 . Which of these statements are true? Choose ALL that are correct. A Robert's sales are represented by x when solving 3.5x=63 . B Robert's sister's sales total $18.00. C Robert's sales are represented by x when solving 2.6x=63 . D Robert's sales total $25.20. E Robert's sister's sales are represented by x when solving 3.5x=63 .
Answer:
B. Robert's sister's sales total $18.00.
E. Robert's sister's sales are represented by x when solving 3.5x = 63 .
Step-by-step explanation:
Let
Robert sister's sales = x
Robert sales = 2.5 * x
= 2.5x
Total sales = Robert sister's sales + Robert sales
63 = x + 2.5x
63 = 3.5x
Divide both sides by 3.5
x = 63 ÷ 3.5
= 18
x = $18.00
Robert sales = 2.5x
= 2.5(18)
= $45.00
A. Robert's sales are represented by x when solving 3.5x=63 .
No
B. Robert's sister's sales total $18.00.
Yes
C. Robert's sales are represented by x when solving 2.6x=63 .
No
D. Robert's sales total $25.20.
No
E. Robert's sister's sales are represented by x when solving 3.5x = 63 .
Yes
find the value of x
do 5 and 7
Answer:
#5 = 14.4
#6 = 8.4
Step-by-step explanation:
Find the coordinates of quadrilateral "WXY' after a dilation with the scale factor of 2.
Original coordinates:
V(6, 2), W2,4), X-3, -2), Y(3, -5), scale factor of 2
8
W
0 -86
10
12
NEED HELP ASAP
Answer:
2,1
Step-by-step explanation:
Answer: no
Step-by-step explanation:
help 6th grade math i will give brainliest
What is the simplified form of the expression 2/15 ?
Answer:
2/15 cant be simplified any further
Step-by-step explanation:
Answer:
It can not be simplified bu it can be 0.133333
Step-by-step explanation:
A laundry basket has 24 t-shirts in it. Four are navy, 12 are red, and the
remaining are white.
What is the probability of not selecting a white shirt?
Answer:
The probability is 1/2. Since there are 24 T-shirts in total and 12 is half of 24, the probability is 1/2.
Step-by-step explanation:
draw a line representing the rise and a line representing the run of the line. State the slope of the line in simplest form
Answer:
Slope is 3/1
Rise is 3
run is 1
hope this helps
What is the slope and why?
Answer:
Step-by-step explanation:
ok slope is m because there is a thing called y-intercept, so you use x to find slope.
the whole formula is y = mx +b
in this case m = slope with x being the part of the slope from where you got it from
the answer would be m = [tex]\frac{1}{2}[/tex]x
i hope this helped :)
Answer:
1/2
Step-by-step explanation:
Can someone help me please!!
I AM HERE TO HELP--- nope I'm sorry
A line segment always contains a line
ten less than four times a number is 50
the equation is -----the solution is ------
Answer:
2.5
Step-by-step explanation:
50÷4-10
50=(4x)-10
Equation:
(4*n)=50
Solution:
(4*n)-10=50
(4*n)-10-10=50-10
(4*n)=40
4*10=40
n=40
HELP ASAP !! & GIVING OUT BRANLIEST
Select the correct answer.
Maggie is training for a bicycle trip across her home state. She recorded the approximate number of miles she biked during 10 days of training. The graph shows the data that she recorded as a function of the distance biked over time.
Which function best models the data set?
Answer:
C
Step-by-step explanation:
I got it right
The function that best models the data set is y = 3x + 11
What is the slope of the line?"The slope of the line passing through points [tex](x_1,y_1),(x_2,y_2)[/tex] is,
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]"
What is the equation of the line passing through two points?"The equation of the line passing through points [tex](x_1,y_1),(x_2,y_2)[/tex] is, [tex]\frac{y-y_1}{y_2-y_1} =\frac{x-x_1}{x_2-x_1}[/tex] "
For given question,
If we draw the line of best fit, then the the line would pass through points (3, 20) and (8, 35)
Let [tex](x_1,y_1)=(3, 20),(x_2,y_2)=(8, 35)[/tex]
Then the equation of the line would be,
[tex]\Rightarrow \frac{y-y_1}{y_2-y_1} =\frac{x-x_1}{x_2-x_1} \\\\ \Rightarrow \frac{y-20}{35-20} =\frac{x-3}{8-3} \\\\ \Rightarrow \frac{y-20}{15} =\frac{x-3}{5} \\\\ \Rightarrow y-20=15\times \frac{x-3}{5}\\\\ \Rightarrow y-20=3(x-3)\\\\ \Rightarrow y-20=3x-9\\\\ \Rightarrow y=3x+11[/tex]
Therefore, the function that best models the data set is y = 3x + 11
Learn more about the equation of the line here:
https://brainly.com/question/2564656
#SPJ2
Plz, Help me with this!!!!
Plz, Help me with this!!!!
Plz, Help me with this!!!!
A parabola had a vertex at (3,4) and passes through the point (5,-4) what is the standard form equation for the parabola.. help pleasee
Answer:
i need help on this one aswell
Step-by-step explanation:
noooooooooooo
pls
someone help us on this question
How would the graph of f look like? Help please!
Answer:
Step-by-step explanation:
Diana is going camping with her family. Their campsite is
mile away. They walk at a steady speed of 2 mi/h.
How many minutes will it take them to get to the
campsite? I NEED IT ASAP
Answer:
30 minutes
Step-by-step explanation:
If the campsite is only a mile away and they can walk 2 miles per hour, then it will only take them half an hour.
Status
Exam
Convert the function from point-slope
form to slope-intercept form.
y + 3 = -2(x - 1)
y = [? ]x - [
Enter
Answer:
y = -2x - 1
Step-by-step explanation:
y + 3 = -2 ( x - 1 )
y + 3 = -2x + 2
y = -2x - 1
The cost of an
8
-ounce box of cereal is
$
1.68
. At this rate, what is the cost per ounce of the cereal, in dollars and cents?
Answer:
.21 cents
Step-by-step explanation:
To get .21 do 1.68 divided by 8
1.68 ÷ 8 = .21
Hope this helps ya!!
For the system, what is the y-value? 1x + 3y = 10 -x + 8y = 4
y =− 11/2≈−0.181818182 is that what your looking for
can you help with this? and explain.
Answer:
C
Step-by-step explanation:
Answer:
C. x < -175
Step-by-step explanation:
-1/5x + 4 < 39
minus 4 on both sides
= -1/5 < 35
multiply by -5 because we want the X to be positive, always. And when we multiply or divide by a negative number, the sign will always flip.
X > -175
Please help me with a math question ASAP!!! Will give Brainliest
Below is a screenshot of the problem
Answer: 128
Step-by-step explanation: 3 x -2 + 70 = 64 + -2 + 70 = 128
What is the value of x in the solution to this system of equations?
y+2x=-1
Y=2x-19
Answer:
My teacher told be that x will mean 6 and she also said anyletter will equel 6 in an eqaution HOPE THIS HELPS :D
Step-by-step explanation:
Solve for z: 4 (z+6) -11 = 25
I need to show my work
Answer:
z=3
Step-by-step explanation:
4(z+6)-11=25
add 11 to both sides
4(z+6)-11+11=25+11
simplify
4(z+6)=36
divide each side by 4
(4(z+6))/4=36/4
Simplify
z+6=9
subtract 6 from each side
z+6-6=9-6
simplify
z=3
Answer:
z=3; plug the equation into a calculator
please help im crying and failin math i have a 41 f
Answer: d
Step-by-step explanation: trust me
Answer:
C) The depth the scuba diver is before he/she begins the ascent to the surface.
Step-by-step explanation:
This would be your answer because it is asking what the y-intercept of the graph represents. On the graph the y-intercept is labeled Depth(m), which represents the meters the diver assented to reach the surface from where they were originally at.
Sean is buying 9/16
pound of tea at a tea shop. The cost of tea is $24 per pound.
The cost of 9/16 pounds of tea is $13.50.
How to determine the cost of 9/16 pounds of teaIn order to determine the cost of 9/16 pounds of tea, the cost of a pound of tea would be multiplied by 9/16 pounds.
Cost of 9/16 pounds of tea = 9/16 x 24
= $216/16
= $13.50
To learn more about multiplication, please check: https://brainly.com/question/3385014
Which function has an inverse that is a function?
b(x) = x2 + 3
d(x) = –9
m(x) = –7x
p(x) = |x|
Answer:
All but the second one
Step-by-step explanation:
Find the inverse of each function:
b(x)=x^2+3
y=x^2+3
x=y^2+3
x-3=y^2
sqrt(x-3)=y
This inverse function is a function
d(x)=-9
y=-9
This doesn't have an inverse function
m(x)=-7x
y=-7x
x=-7y
-1/7x=y
This inverse function is a function
p(x)=|x|
y=|x|
x=|y|
x=y
This inverse function is a function
Therefore, all but the second function have inverses that are functions
Answer:
All but the second one have inverse functions
Step-by-step explanation:
Brainliest pls pls pls pls
SO anyways :))))
Thanks and please make sure you comment only if you are pretty sure you are right! Thanks
Answer:
1 / 8², B
Step-by-step explanation:
8 / 8³
8³ = 8*8*8
So, the equation can also be written as:
8 / 8*8*8
divide the numerator and denominator by 8.
1 / 8*8
This is equal to:
1 / 8²
The answer is B.
A recipe for chicken noodle soup calls for 1 3/4 cups of chicken broth. Peggy wants to triple the recipe. How many cups of chicken broth will she need?
Step-by-step explanation:
multiply 1 3/4 by 3
7/4×3
21/3=
5 1/4
Answer:
1. Less than 3
2. 9/4
Step-by-step explanation:
patty had 51 cent until she spent 5 nickles.how much money does patty have now?
Answer:
26 cents
Step-by-step explanation:
5×5=25
51-25=26
PLS HELP. Which of the following describes a way to graph the function?
Answer:
The graph of the function is the set of all points (x,y) in the plane that satisfies the equation y=f(x) y = f ( x ) . ... A vertical line includes all points with a particular x value. The y value of a point where a vertical line intersects a graph represents an output for that input x value.
