Answer:
D
Step-by-step explanation:
What is the value of x if 5x + 45 = 35?
Select one:
10
-2
-10
2
Answer:
x= -2
Step-by-step explanation:
Simplifying 5x + 45 = 35 Reorder the terms: 45 + 5x = 35 Solving 45 + 5x = 35 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-45' to each side of the equation. 45 + -45 + 5x = 35 + -45 Combine like terms: 45 + -45 = 0 0 + 5x = 35 + -45 5x = 35 + -45 Combine like terms: 35 + -45 = -10 5x = -10 Divide each side by '5'. x = -2 Simplifying x = -2
The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly selected math students. Number of practice problems completed in 30 minutes Sample 1 14 15 16 17 16 15 16 15 17 18 Mean = 15.9 Sample 2 16 18 17 14 15 14 18 14 15 16 Mean = 15.7 Sample 3 18 14 16 15 15 14 17 15 19 13 Mean = 15.6 Which statement is most accurate based on the data? A. A prediction based on the data is not completely reliable, because the means are not the same. B. A prediction based on the data is reliable, because each sample has 10 data points. C. A prediction based on the data is not completely reliable, because the means are too close together. D. A prediction based on the data is reliable, because the means of the samples are close together.
Answer:
A
Step-by-step explanation:
The statement which is most accurate based on the data is option(D)A prediction based on the data is reliable, because the means of the samples are close together.
What is Mean?Mean is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers
From the given data,
Mean of the sample 1 = 15.9
Mean of the sample 2 = 15.7
Mean of the sample 3 = 15.6
All three mean are close together.
Therefore the data is reliable
Hence, the statement which is most accurate based on the data is option(D)A prediction based on the data is reliable, because the means of the samples are close together.
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Question
Describe how you know if an equation has NO solutions. Give some examples of an equation that has no solutions.
Answer:
The constants are the numbers alone with no variables. If the coefficients are the same on both sides then the sides will not equal, therefore no solutions will occur. Use distributive property on the right side first.
Step-by-step explanation:
Hope this helped:).
The
leng
X+6
long
Kevin had a total of 160 minutes to read,
do homework, and play video games.
He spent x minutes reading
He spent 2(x+7) minutes doing
homework
He spent 35 minutes playing video
games.
How many minutes did Kevin spend
reading?
Answer:
49
Step-by-step explanation:
a system of equation is shown x=10. 3x + 5y =20 what is the solution
Answer:
[tex](r,y) = (10, - 2)[/tex]
Step-by-step explanation:
[1] x = 10
[2] 3x + 5y = 20
0? + x = 10 5? + 3x = 20
HELP IM SO CONFUSED AGHHHH
Answer:
Ok... Move 630% to match up with 6.3. Move 63% to match up with 0.63. Next, move 6.3% to match up with 0.063...
I hope I'm not too late...
What is the value of X
Answer:
4 because
10+2x=18
2x=8
x=4
Help and get brainliest!
Answer:
I think it's either A or D
Step-by-step explanation:
Find g(-6) if g(x) = -5x – 2
Answer:
648=7
Step-by-step explanation:
At the ice cream parlor there are thirty flavors, but for the last week they have only had 25 flavors.
Find the percent of change.
Answer: Percent change = 20%
===========================================================
Work Shown:
A = old value = 25 (last week's number)
B = new value = 30 (current week's number)
C = percent change
C = [ (B-A)/A ] * 100%
C = [ (30-25)/25 ] * 100%
C = [ 5/25 ] * 100%
C = 0.20* 100%
C = 20%
The percent change is 20%
The positive value of C indicates we have a percent increase.
1
Select the correct text in the table.
Consider the following expression.
-102 + 5 + 3
2.12 + 4
Select the true statements.
The numerator has 3 terms.
The denominator includes a coefficient of 4.
The denominator includes a coefficient of 2.
The numerator has 2 terms.
The numerator includes a coefficient of 3.
Answer:
first and third statements
Step-by-step explanation:
write number 5 million 4 thousand 3 hundread in standard form
5 million, four thousand, three hundred in standard form is 5.0043 x 10^6
Solution:
Need to represent 5 million, four thousand, three hundered in standard form
5 million = 5000000
4 thousand = 4000
3 hundred = 300
5 million, four thousand, three hundred = 5000000 + 4000 + 300 = 5004300
In standard form, decimal comes after first digit and multiply to power of 10 dependency on total digits of number.
In our case, given number is 5004300.
So we need decimal after first and after that multiplying it by appropriate power of 10. So,
5004300 = 5.0043 x 10^6
Hence 5.0043 x 10^6 is standard form of 5004300 that is standard form of 5 million, four thousand, three hundred.
PLEASE I NEED HELP ASAP
solve the equation -4+4a=12 for a.
Answer:
4
Step-by-step explanation:
4 x 4 is 16 and then because of the negative you take away 4 so its 12.
Answer:
a=4
Step-by-step explanation:
-4+4a=12
add four to 12
4a=16
divide
Tickets to a show cost $5.50 for adults and $4.25 for students. A family is purchasing 2 adult tickets and 3 student tickets. Estimate the total cost.
Step-by-step explanation:
they paid 23.75 dollars. I hope it helps l!
Step-by-step explanation:
They paid 23.75 dollars. I really really hope this helps l!
What's the difference between 4 3/4 and 3 1/2
Answer:
The diffrence is that 4 3/4 is greater then 3 1/2 because if you take 4 by itself by 3 then 4 will 4 because the whole number is greater so their for the intier answer will be greater. 3 1/2 is less then 4 3/4 because the whole number is lower so their for the answer is less.
Step-by-step explanation:
I hop i helped you also if i did do it right may i get brainliest
When you find 36 is 42% of what number, what are you looking for?
Answer:
dezzzz nuts
Step-by-step explanation:
im eating poop
How many bars of soap and toothbrushes are in each package? HHEEELLLPP!!!
4E. There is an ample supply of identical blocks (as shown). Each block is constructed from four 1 × 1 × 1 unit-cubes glued whole-face to whole-face. What is the greatest number of such blocks that can be packed into a box that is 6 units tall, 7 units wide, and 8 units deep without exceeding the height of the box?
Answer:
72
Step-by-step explanation:
sdsa
Answer:
72
Step-by-step explanation:
The answer can also be 80 and 84.
Nicole kicked the ball 57 feet tyrel kicked the ball 35 feet. How much farther did Nicole kick the ball than tyrel?
Answer: Nicole Kicked the ball Father by 22feet than Tyrell
Step-by-step explanation:
Nicole kicked the ball 57 feet
Tyrel kicked the ball 35 feet
Nicole Kicked the ball Father by = 22feet
This is gotten by subtracting the distance Nicole kicked from that of Tyrel
=57 feet - 35feet = 22feet
If you were to get 25 out of 30 on this assignment, what percent would have scored?
if you got a 25 out of 30 on an assignment, you’d score an 83.3%. :)
Jake was the winner of -400 yard race he finished the race is 2 minutes let T represent the finishing times in minutes of the other participants who ran the race
Answer:
T > 2
Step-by-step explanation:
Evaluate functions from their graph g(-9)
Please help my teacher doesn’t teach us anything and just gives us khan academy assignments and I’m really stressing out from this assignment
At the coordinate of -9, the value of the function g(-9) will be 1.
What is coordinate geometry?A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.
Given that in the graph the function is varies with the value of the coordinates, at the value of -9 the solution for the function g(-9) will be equal to 1
g(-9) = 1
Hence, the value of the function will be 1.
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!!HELP ME PRETTY PLEASE!!Examine the four different companies in the table, which shows their yearly income and their tax rate. Which type of taxation does this table best represent?
Answer:
regressive tax
Step-by-step explanation:
Tax is a compulsory sum levied by the government or an agency of the government.
There are 3 types of taxes
1. proportional tax - the same amount of tax rate is levied on everyone.
2. regressive tax - lower earning inviduals are taxed
Answer: its proportional
Step-by-step explanation:
i got it right
HELPPPPP PLEASEEEEEEEE I'M SOOOOO CONSUSED?!?!?!??!?!?!?!??!?!??!
I tried lma0 but I still need help
4 and 5 are alternate angles.
2 and 3 are vertically opposite angles.
1 and 5 are corresponding angles.
2 and 7 are alternate exterior angles.
3 and 4 are supplementary angles.
I need help finding the equivalent expression
Answer:
6(4c-1z)
Step-by-step explanation:
What is the area of the triangle?
Answer:
im pretty sure its 16 if its not im rlly sorry
Step-by-step explanation:
dfhwtuwrturyujyrtuytuypp
Uhh, what's the question?
Quiana has 7 times more text messages from Yolanda than from Pierre. Quiana has 42 text messages from Yolanda. Which equation can be used to find how many text messages Quiana has from Pierre, p?
A triangular pyramid has a base area of 24 square meter and heigh of 4 meters. what is the volume
Answer:
96 meters
Step-by-step explanation:
Volume means length x width x height and since it has already found the length and width, you multiply that by 4. So, 24 x 4 = 96
Answer:
32
Step-by-step explanation:
so volume =1/3 area of base times hieght that would be
1/3*96
32