Answer:
26
Step-by-step explanation:
Sydney = x
Devaughn = 2x
x + 2x = 78
3x = 78
x = 78 / 3
x = 26
Hope that helps!
Answer:
what do you need help with
Step-by-step explanation:
Write an equation for the data in the table. Identify your variables.
First find the slope m. slope formula: [tex]\frac{y_{2} - y_{1} }{x_{2} - x_{1} }[/tex]
Let's use (0, -20) for x1 and y1; and (2, 10) for x2 and y2
[tex]\frac{10-(-20)}{2-0}[/tex] = [tex]\frac{30}{2}[/tex] = [tex]15[/tex]
Now find the y-intercept: the point where the graph crosses the y-axis. The y intercept always has an x value of 0. So -20 is the y-intercept
Use the slope formula [tex]y = mx + b[/tex]. Slope=m, y-intercept = b
y = 15x - 20
y is the money in the bank account in dollars
x is the day
What are the answers to these?
Answer:
XW in the first blank
Z in the second blank
what is the productof(-3/5)and (-15)
Answer: ok i kown
Step-by-step explanation:
i kown
Step-by-step explanation:
[tex]( - \frac{3}{5} ) \times ( - 15) = \\ = \frac{3}{5} \times 15 = \\ = 3 \times 3 = 9[/tex]
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
C
Step-by-step explanation:
Hello There!
x = # of cars and y = # of vans
the total amount of vehicles is 12 so
x + y = 12
each car can hold 4 students and each van can carry 12 students
there are a total amount of 72 students
so 4x + 12y = 72
so from the given information we can conclude that the answer is C
The radius of a circle is 4 cm. Find its area in terms of Pi?
Answer:
50.27 cm
Step-by-step explanation:
4 to the second power=16
16×3.14=50.27
Select all expressions that are equivalent to 2x+3x+8-3x-2.
Answer:
2x+6 since the +3 and -3x cancel each other out your only left with 2x
I need help on this question
Answer:
4.8ft
Step-by-step explanation:
18 is 14 percent of what?
Answer:
18 is 14% of 128.5714
Step-by-step explanation:
it's 77.78
Step-by-step explanation:
14: 18*100 =
(14*100): 18 =
1400: 18 = 77.78
Now we have: 14 is what percent of 18 = 77.78
Question: 14 is what percent of 18?
Percentage solution with steps:
Step 1: We make the assumption that 18 is 100% since it is our output value.
Step 2: We next represent the value we seek with $x$x.
Step 3: From step 1, it follows that $100\%=18$100%=18.
Step 4: In the same vein, $x\%=14$x%=14.
Step 5: This gives us a pair of simple equations:
$100\%=18(1)$100%=18(1).
Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have
$\frac{100\%}{x\%}=\frac{18}{14}$100%x%=1814
Step 7: Taking the inverse (or reciprocal) of both sides yields
$\frac{x\%}{100\%}=\frac{14}{18}$x%100%=1418
$\Rightarrow x=77.78\%$⇒x=77.78%
Therefore, $14$14 is $77.78\%$77.78% of $18$18.
what is 6.2 ÷ 3.1 I NEED HELP PLEASE
Answer:
it's 2
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
HELP ASAP!!!!!!! PLEASEEEEE
Answer:
B
Step-by-step explanation:
This asks for data from multiple people, and it not just a yes or no question
Lucy scored 20 points in her basketball game. She made 4 of her free throws, worth 1 point each, and made no 3-point field goals. How many 2-point field goals did she make?
a. write an equation to represent this situation.
Answer:
Step-by-step explanation:
4x1=4, 20-4=16. 16/2=8. Lucy made 8 2 point field goals
18. Write a similarity statement relating the three triangles in the diagram.
Find the Volume of the Cube
Question 2 options:
A. 125 in3
B. 5 in3
C, 25 in3
D. 15 in3
Sam’s average speed when running in a marathon is 12 feet per sec (12 ft/sec). Find his average speed in miles per hour (mi/hr) AND Show the dimensional analysis
I like chicken nuggets :>
Answer:
dimension
speed =distance/time
[S]=M^0L¹T-¹
7. These number share the same percentage
increase. Work out the missing value.
£20 and £25
£24 and £___
Question:show all of your work and includes all properties used on the right hand side of the Tabel.Solve the following equation for x, fill in the justification table for each.
Equation:3x+95x+21
Can someone plzzzz help meeee!!!!!
Answer:
1. Interpret (L): To explain or to give meaning to.
2. Variable: (F) Something that can change or influence the results of an experiment.
3. Observe (I): To notice what occurs during an experiment.
4. Questions (B): The inquiry or problem relating to a topic that can be answered by conducting an experiment.
5. Scientific Method (A): A method of doing research that includes the steps of identifying a problem, gathering data, forming a hypothesis, testing a hypothesis, and drawing a conclusion.
6. Ethical (E): Following the rules of being being fair and honest.
7. Hypothesis (G): An educated guess or reasonable assumption.
8. Research (D): To conduct an investigation into current information about something.
9. Experiment (C): A test or trial performed in order to discover something.
10. Conclusion (K): The result or outcome of something.
11. Procedure (H): A sequence of steps involved in performing an experiment.
If this helps, please consider giving a thanks, a good rating, and Brainliest! Thanks!
factorise (x+3)²-25
help meeeeee
Answer:
(x + 8)(x - 2)
Step-by-step explanation:
(x+3)²-25
x² + 6x + 9 - 25
combine like terms:
x² + 6x - 16
(x + 8)(x - 2)
pls help
What is due to acids formed when atmospheric and volcanic gases mix with water
A chemical weathering
B mechanical weathering
C root- pry
D pedalfer
Answer:
your answer is A chemical weathering
Step-by-step explanation:
as when volcanic gasses and atmospheric gasses mix it can become a sort of acidic rain in some cases I hope this answer helps I apologize for any wrong answers this is not my best subject but I wanted to attempt this as I k ow a small amount about it!
The process described in the question is known as acid rain, which is a type of chemical weathering. The correct answer would be option (A) chemical weathering.
What is acid rain?When atmospheric and volcanic gases mix with water in the atmosphere, they can form acids such as sulfuric acid and nitric acid. These acids can then drop to the earth as acid rain. In rare situations, the mixing of volcanic and atmospheric gases can result in acidic rain.
Acid rain can cause chemical reactions with minerals in rocks and soil, dissolving them over time. This can lead to the breakdown of the rock or soil, which is an example of chemical weathering.
Thus, the process described in the question is known as acid rain, which is a type of chemical weathering.
Hence, the correct answer would be option (A) chemical weathering.
Learn more about chemical weathering here:
https://brainly.com/question/29616084
#SPJ7
What are the coordinates of the focus of the parabola? (x+1)2=−8(y−2) (−1, 2) (1, −2) (−1, 0) (−1, 1)
Answer:
[tex](x,y) = (-1,0)[/tex]
Step-by-step explanation:
Given
[tex](x+1)^2 = -8(y-2)[/tex]
Required
The coordinates of the focus
First, write the expression in form of: [tex]y=a(x-h)^2+k[/tex]
[tex](x+1)^2 = -8(y-2)[/tex]
[tex](x+1)^2 = -8y + 16[/tex]
[tex]-8y + 16 = (x+1)^2[/tex]
Subtract 16 from both sides
[tex]-8y = (x+1)^2 - 16[/tex]
Divide through by -8
[tex]y = -\frac{1}{8}(x+1)^2 - \frac{16}{-8}[/tex]
[tex]y = -\frac{1}{8}(x+1)^2 +2[/tex]
In this case:
[tex]a = -\frac{1}{8}[/tex]
[tex]-h = 1[/tex] [tex]h = -1[/tex]
[tex]k = 2[/tex]
The focus of the parabola is:
[tex](x,y) = (h,k + \frac{1}{4a})[/tex]
This gives:
[tex](x,y) = (-1,2 + \frac{1}{4*-\frac{1}{8}})[/tex]
[tex](x,y) = (-1,2 + \frac{1}{-\frac{1}{2}})[/tex]
[tex](x,y) = (-1,2 -2)[/tex]
[tex](x,y) = (-1,0)[/tex]
PLSS HELP! WILL GIVE BRAINLIEST!!
Answer:
the answer is c!
Step-by-step explanation:
:)
1/2x - 7 = 1/3 (x- 12)
Answer:
x = 18
Step-by-step explanation:
1/2x - 7 = 1/3 (x- 12)
Multiply both sides by 3
3 * 1/2x - 3 * 7 = 3 * 1/3 (x - 12)
3/2x - 21 = x - 12
Collect like terms
3/2x - x = 21 - 12
1/2x = 9
Multiply both sides by 2
x = 2 * 9
x = 18
Answer:
x = 18
hope this helps! :)
If you were to roll a standard six sided die, what is the probability of rolling a number less than what three other people rolled?
Mr. Turney wrote the value statement "x = 2" on the whiteboard. He asked his students to create an equation or inequality with this value as a solution.
Answer:
Some of the equations can be written as-
1. 2x = 4
2. 3x + 9 = 15
3. x + 5 = 7
4. 5x - 2 = 8
Step-by-step explanation:
Given - Mr. Turney wrote the value statement "x = 2" on the whiteboard.
To find - He asked his students to create an equation or inequality with
this value as a solution.
Proof -
Given that, The value statement is ''x = 2''
We have to find out that equation in such a way that if we solve the equation , we get the value x = 2
There can be infinite many equation that give the value statement '' x = 2''
Some of the equations can be written as-
1. 2x = 4
2. 3x + 9 = 15
3. x + 5 = 7
4. 5x - 2 = 8
And many more.
Verification -
1. 2x = 4
⇒x = [tex]\frac{4}{2}[/tex]
⇒x = 2
Verified
2. 3x + 9 = 15
⇒3x = 15 - 9
⇒3x = 6
⇒x = [tex]\frac{6}{3}[/tex]
⇒x = 2
Verified
3. x + 5 = 7
⇒x = 7 - 5
⇒x = 2
Verified
4. 5x - 2 = 8
⇒5x = 8 + 2
⇒5x = 10
⇒x = [tex]\frac{10}{5}[/tex]
⇒x = 2
Verified
17. Write an equation in slope-intercept form for the line perpendicular to y = 3x - 9 that passes through the point (9,-9). Explain how you got your answer.
Answer:
y=-1/3x-6
Step-by-step explanation:
Perpendicular lines have slopes that are negative and reciprocal; if you multiply them together, the result is -1
so, to find the slope of the new line:
3m=-1
divide by 3
m=-1/3
the slope of the new line is -1/3
Slope-intercept form is written as y=mx+b, where m is the slope and b is the y intercept.
Here's our equation so far:
y=-1/3x+b
since the line passes through the point (9,-9), we can use it to solve for b
substitute into the equation:
-9=-1/3(9)+b
-9=-3+b
-6=b
b is -6
here's our equation
y=-1/3x-6
hope this helps! :D
please someone give me an actual answer.
Answer:
option 2
Step-by-step explanation:
HELLLL I’ll give Brainlist
Find the simple interest paid to the nearest cent for each principal, interest rate, and time. $570, 2%, 4 years
Answer:
570 of 2% 4years
570×2÷100 4years
11.5 × 4÷12
3.8..
Plssssss help I need an answer
Answer:
Me encanta el pollo, de todos modos, un día que es hoy, por cierto, fui a la tierra de los pollos y caminé en México, ¿sabías que es mi sueño? ¿Olvidé que mi nombre es jemma y me gusta caminar? párrafo así que nos vemos
Step-by-step explanation:
Does the number triple 5, 6, and 8 represent the lengths of sides of a right triangle? Explain. Will give Brainliest
Answer:
no
Step-by-step explanation:
to be a right triangle the smaller two sides squared & added together would equal the square of the longer side
does 5² + 6² = 8²?
25 + 36 = 61, not 64 so it is not a right triangle