Elena solved the equation 2(x – 9) = 10 In the
following way. What mistake did she make?
Answers
Answer: Subtract 18 on both sides is wrong. Its supposed to be add 18 on both sides.
Step-by-step explanation:
2x-18=10
You add 18 to both sides
So it would be 2x=28
Then you divide 2 on both sides so x=14
Related Questions
Which of the following expressions shows the expression 1/2x+3−2/5x+1 in simplest form?
A) 1/10x+4
B) -1/10x+4
C)1/7x+4
D) -1/7x+4
Answers
Answer:
B
Step-by-step explanation:
find the GCF for the fractions which is 10 on the bottom and 5/10 minus 6/10 equals -1/10 which only on answer has.
For each babysitting job, Adam charges a fee for his bus fare plus an hourly rate.
The graph shows how he calculates the cost of a babysitting job.
Drag numbers to complete a linear function in terms of x and y to model the situation.
Numbers may be used once, more than once, or not at all.
PLEASE I NEED HELP ASAP!!!!
You get 87 pointss please help meee
Answers
Answer:
Can you add more to it because this does not make sense if they numbers are already on the chart what numbers can we use
Step-by-step explanation:
Answer:
y = 6x + 2
Step-by-step explanation:
I'm a math expert. If I helped you, give me brainliest.
An orchard has 28 apple trees and 12 pear trees. Select all the expressions that show the ratio of apple trees to pear trees.
A.7/3
B.3:7
C.28:12
D.7 to 3
E.12 to 28
Answers
The quired ratio of apple trees to pear trees is 7/3. Option A is correct.
Given that,
An orchard has 28 apple trees and 12 pear trees.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
What is the Ratio?The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.
Here,
Number of apple trees = 28
Number of pear trees = 12
Ratio of apple to pear = 28 / 12
= 7 / 3
Thus, the quired ratio of apple trees to pear trees is 7/3. Option A is correct.
Learn more about ratios here:
brainly.com/question/13419413
#SPJ2
There are 5,280 feet in 1 mile. If Riley ran 26,400 feet, how many miles did she run? [Type your answer as a number.]
________ miles
Answers
Answer:
Step-by-step explanation:
5,280=1mile
26,400=26,400/5,280
5miles.
Riley ran 5 miles
Step-by-Step:
If in 1 mile there is 5,280 feet and Riley ran 26,400ft we can divide 5,280 and 26,400 to find how many miles she ran. 5,280 / 26,400 = 5. Riley ran 5 miles
Bruce’s hourly wage increased from $15.00 to $18.60. What percent of change does this represent?
Answers
Step-by-step explanation:
15.00_____100percent
18.60_____124 percent.
it increased witf 24 percent
Answer:
0.2% increase
First, you find the change between $15.50 and $18.60, which is 3.10. Then you do 3.10 divided by the original, which is 15.50. You should get 0.2.
Step-by-step explanation:
write the word sentence as an inequality a number b multiplied by -5 is at most -3/4 the inequality is ?
Answers
Answer:
b×-5≤-3/4
Step-by-step explanation:
if its at most that means b times -5 is less or equal. (also remember the line under the inequality symbol)
Answer:
b×-5≤-3/4
Step-by-step explanation:
TRUST ME
please help i never learned this yet lol (Will mark brainliest!!)
thx!! :)
Answers
Answer:
C
Step-by-step explanation:
Answer: your answer should be C
Step-by-step explanation:
can you guys help me please
QUICKLY
Answers
Answer:
Answer is 2x2x3x7
Step-by-step explanation:
2x2=4
4x3=12
12x7=84
Answer:
2, 2
Step-by-step explanation:
7x3=21
21x2=42
42x2=84
So you answer for both of the boxes is two
A tepee is designed to have a diameter of 10 feet and a volume of 366 feet at what h Igor should the support poles cross to assemble the tepee (round ur answer to the nearest foot)
Answers
Answer:
A. 14ft
Step-by-step explanation:
First get the cones volume formula v=(3.14*r^2*h)/3
Second find the radius which is 1/2 the diameter.
Third plug in given and solve 366= (3.14*5^2*h)/3
366*3=3*(3.14*25*h)/3
1098=78.5h
1098/78.5=78.5h/78.5
13.987=h
Answer:
14
Step-by-step explanation:
Find the unit rate for each question.
1. David drove 135 miles in 3 hours.
2. Three medium apples have about 285 calories.
3. A 13-ounce package of pistachios costs $5.99.
Answers
Answer:
1. 135/3=45 45mph
2. 285/3=95 95 calories per apple
3. 13/5.99=2.17 $2.17 per ounce
285/3=
5.99/13=
Solve number 32. . Show your work.
Answers
Explanation:
If you are at a starting point of 1, 2 and you move in the left 5 in the X direction that would mean you are moving -5. So you would technically subtract 5 from 1 to get -4 (1-5=-4). For the second part you are moving down 2 in the Y direction. This would be the same thing. You are technically subtracting 2 from that Y number to get 0 (2-2=0) so your final coordinates would be (4-, 0)
The city plans a new road that will be parallel to Brodie Lane. What is the slope of the new road?
A. 4
B. 0
C. 5
D. 6
Answers
Slope of the new road parallel to Brodie Lane will be Option (B). 0
Given in the question,
Brodie Lane which is parallel to x-axis of the graph attached.Since, all the lines parallel to x-axis have the slope = 0
Therefore, new road parallel to Brodie lane will be parallel to x-axis and slope of the new road will be 0.
Hence, Option B will be the correct option.
Learn more,
https://brainly.com/question/14061880
Which expression has a value that is equal to the given expression when n = 8? 2n + 10 A. 3n
B. 10n + 2
C. n² + 5
D. 2(n+5)
Answers
Answer:
D.
Step-by-step explanation:
2n + 10
When n = 8 we have
2*8 + 10
= 16 + 10
= 26.
When n = 8:
2(n + 5)
= 2(8 + 5)
= 2*13
= 26.
So it's D.
Answer:
D. 2(n+5)
Step-by-step explanation:
I took the test (5.02 quiz)
does the table below represent a function
Answers
Combine like terms to create an equivalent expression.
-1/2(-3y+10)
Answers
Answer: 3/2y - 5
Step-by-step explanation:
Explanation:
-1/2(-3y+10) distribute the -1/2
-1/2(-3y) = 3/2y
-1/2(10) = -5
3/2y - 5
Jamal and Kendra are running in a 26.2-mile marathon. Jamal’s friend is recording his times in the table as shown, while Kendra’s friend uses a scatter plot to show her progress. If both runners continue at the same average pace, who will arrive at the finish line first? How much longer will it take for the other person to finish?
Answers
Is there a table I can see?
Can someone help me with this ASAP
Answers
Answer:
it's 88 percent
Step-by-step explanation:
such as comparison informs consumers that 100 percent kf apple juice is 88 percent water
Ethan’s cookie recipe uses 3 cups of sugar to make 21 cookies. Mia’s recipe uses 4 cups of sugar to make 24 cookies. Who's recipe has more sugar per cookie?
Answers
Then Mias cookies are 24 cookies per 4 cups of sugar. You would do 24/4 to get 6, so 6 cookies per cup of sugar.
Mia’s cookies make less cookies per cup of sugar, so they’d have more sugar in them.
Mia- 6:1
Ethan- 7:1
Which Doesn't Belong?
Answers
Step-by-step explanation:
If you are goin for which one isn't prime, then it would be four.
If you are going for which one isnt a factor, there is more then one
If you are going for something else, i have no idea.
Help me plz I really need help
Answers
Answer:8 6/8
Step-by-step explanation:6 1/8+ 2 5/8
Answer:
8 6/8
Step-by-step explanation:
Robbie did a survey of four butterfly parks and wrote the following observations: BRAINLIEST
Butterfly Park Survey
Park Number of White Butterflies Total Number of Butterflies
A 24 86
B 43 92
C 12 68
D 32 52
Based on the survey, which park had the greatest percentage of white butterflies?
Park A
Park B
Park C
Park D
Answers
There are no values of x and y that make y = -x + 10 and y = 2x + 4 true at the same time. True or False
Answers
Answer:
False
Step-by-step explanation:
there is no number for x and y to make both true
hop it helps :)
what career cluster does a mailman fall under
Answers
Answer:
no lo se :l
Step-by-step explanation:
what is the measure of is 40 ( not sure it is pointing the right way)
Answers
Answer:
Step-by-step explanation:
The number of students at Lala High School is 64 less than 3 times the number of students at Banana High School. Which expression could be used to represent the total number of students at Lala High School if variable s represents the number of students at Banana?
(Sorry I'm not good at names these were real High schools in my county)
Answers
Answer:
3s - 64
Step-by-step explanation:
Answer:
3s - 64
Hope this helps! Good luck! :)
can anyone help me with this
Answers
True or false:
1. 7 = (-5) - (-12)
2.The difference between -5 and -12 is equal to (-5) - (-12)
3.The difference between -12 and -5 is equal to (-5) - (-12)
4.(-5) + 12 = (-5) - (-12)
5.(-5) + (-12) = (-5) - (-12
Answers
Answer:
1. True
2. True
3. False
4. True
5. False
Hope this helps! :)
Answer:
true
Step-by-step explanation:
Lars did some research on how much it would cost him to buy a gym membership.
At Murfield Country Club, a membership costs $20. Every time Lars goes to the gym he must pay an additional $30/hour.
At Pete’s Gym, it would cost Lars $80 for 2 hours and $120 for 3 hours.
a) Which of the two companies charges no initial fee? How do you know?
b) What is the slope of each line? (Murfield Country Club and Pete's Gym).
Slope for Murfield Country Club =
Slope for Pete’s Gym =
c) Write the equation for each line. (Murfield Country Club and Pete's Gym).
Equation for Murfield Country Club =
Equation for Pete’s Gym =
Answers
Answer:
A. it would be Pete's gym because he doesn't have to pay for a membership as well as paying $30 per hour he only has to pay for the hourly cost.
B. Lars-starts at 20 then goes to 50 then 80 ect... goes up by 30 starting at 20 because of the membership he payed.
Pete's- starts at 0 then to 40, 80, 120, 160 ect... goes up by 40 starting at zero.
C. MCC- 20+(30*y)
PG- 40*y
Step-by-step explanation:
please include answer and explanation :))
Give the domain and range of each relationship. Determine whether or not each relationship is a function.
Answers
Answer:
Domain={2,5,8}
Range={1,3,6}
Function: YES
Step-by-step explanation:
The Domain of a Function
Is the set of values the input variable x takes.
Range of a Function
It's the set of values the output function takes when x moves into the function's domain.
A function is a relation between an input and an output set of values with the condition that every element in the domain relates only with one element in the range.
Following the definitions above, the domain of the relationship is the set of input values:
Domain={2,5,8}
The range is the set of output values:
Range={1,3,6}
Since each element in the input set is related only to one element in the range, the given relationship is a function.
Answers:
Domain={2,5,8}
Range={1,3,6}
Function: YES
Need helpp fastt plss will give brainliest to who is correct plss helpp
PLSSS HELPP I NEED THE ANSWER CORRECT
Answers
Answer:
Percent means per- amount
And the second one is dividing.
Step-by-step explanation: