PLEASE HELP Mary organized her work below for solving the equation 3m-6=24.
Examine her work and answer the following questions.
In what step (or steps) did Mary make a mistake?
What did she do wrong and how should she fix it?
What should her answer be if she solved the problem correctly?
Be sure to answer in complete sentences.
Answers
Answer:
Mary messed up on the second step. She should have also added 6 to the 24. If she had solved the equation the correct way her answer would have been m=10
Step-by-step explanation:
3m-6=24
Add 6 on both sides
3m=30
Divide by 3 on both sides
m=10
Related Questions
Fred is training for a cross-country race. At practice last week, he ran 6.25 miles in 1 1/4 hours. At that speed, how long would it take Fred to run 8.5 miles?
Answers
Answer:
1.7 hours
Step-by-step explanation:
6.25/1.25= 5
8.5/5= 1.7
It would take Fred 1.7 hours to run 8.5 miles.
11
Which correctly solves the equation ab+c= d for b.
A b = d – a-c
B b = a (d - c)
d
C 6
с
a
d-c
D) b
a
Plz help
Answers
Answer:
[tex]b=\frac{d-c}{a}; a\neq0[/tex]
Step-by-step explanation:
[tex]ab+c=d\\\\ab+c-c=d-c\\\\ab=d-c\\\\\frac{ab=d-c}{a}\\\\\boxed{b=\frac{d-c}{a}}; a\neq0[/tex]
Hope this helps.
Answer: ......
Step-by-step explanation: ....
4x+3x=7-6 Help pls i cant figure it out
Answers
Answer:
7x=1
Step-by-step explanation:
circle the variables with x 4 and 3 which equals 7 then do 7-6 which is 1 so that gives you your answer at the top:)
Ameer biked 5 miles and then took a break. After the break,
he rode at a constant rate of 8 miles per hour for h hours.
What does the expression 5 + 8h represent?
A. Ameer's average rate of speed
B. the total time that Ameer rode
C. the total distance that Ameer rode
Answers
Answer:
C. You would be finding the total distance. You arent finding the rate because there is no division, and we dont know how long it took hime to ride the original 5. The answer is C.
write 375 as the product of prime factors
Answers
Answer:
3x5x5x5. Hope this helps with your question!
Step-by-step explanation:
Solve the Equation:
1/5x + 1/4x = 18
Answers
Answer:
4
Step-by-step explanation:
Step 1:
1/5x + 1/4x = 18
Step 2:
4/20x + 5/20x = 18
Step 3:
9/20x = 18
Answer:
x = 4
Hope This Helps :)
Your cell phone company charges $20 a month plus $0.50
per text message.
A) Fill in the table below with 3 values to show the cost at
zero messages, 50 messages and 100 messages.
Answers
Answer:
20+0.50x
20 dollar fee, 0.50 per text, x represents an unknown number
Step-by-step explanation:
simplify 18r + 6 - 12y + 5r + 9
Answers
Answer:
[tex]23r-12y+15[/tex]
Step-by-step explanation:
[tex]18r + 6 - 12y + 5r + 9[/tex]
Group the similar terms together:
[tex]18r+5r-12y+6+9[/tex]
Add the variable "r":
[tex]23r-12y+6+9\\[/tex]
Add the numbers:
[tex]23r-12y+15[/tex]
All these? Please helppp and I need work
Answers
What is equivalent to 8x-y+3x
Answers
Answer:
11x-y
Step-by-step explanation:
11x-y
hope l helped
MARKING BRAINLIEST, NOT A TEST! please help.
Find m angle EFG if m angle IFG=150°, m angle EFG=43x-2, and m angle EFI=4x+4.
Answers
Answer:
Step-by-step explanation:
43x-2-4x+4=150
39x+2=150
39x=148
x= 3.7948 degrees
hopefully this is correct. :)
the cost of local cheese per kilogram is $10 before tax. if the final price is $10.60 what is the percent of the tax?
Answers
Answer: 6%
Step-by-step explanation:
10/.06 is 6%, therefore 10.60 would be 6% after tax.
The perimeter of a movie screen is 76 meters. It is 24 meters wide. How tall is it? meters
Answers
Answer:
14
Step-by-step explanation:
the perimeter of a rectangle is : 2W + 2L = Perimeter
2*24 + 2L = 76
48 + 2L = 76
2L = 76 -48
2L = 28
L=14
Answer:
14 meters
Step-by-step explanation:
Assuming the movie screen is a rectangle, there are four sides. Two of those sides are 24 meters. Therefore you would add 24 and 24 to get 48 meters. Then you take 76 and subtract 48. The difference of 76 and 48 is 28. To know how tall the movie screen is you need to divide 28 by two (there are two sides). That's where you get 14 from. Hoped this helped.
which Quotient is positive ?
A. 28/-4
B. -24/6
C. 42/-7
D. -35/-5
Answers
Answer:
D. -35/-5
Step-by-step explanation:
Dividing two negative numbers results in a positive quotient; therefore, the answer is D.
B)
Height
D)
17)
Steve is going to buy a bicycle that costs $258.70.
Steve's mother is going to pay for 30% of the bicycle.
His father is going to give him $50.00.
How much will Steve have to pay?
Answers
30% = 0.30
$258.70 * 0.30 = $77.61
$77.61 + $50 = $127.61
$258.70 - $127.61 = $131.09 or 50.67%
Steve will have to pay $131.09 or 50.67% of the bicycle.
What property is 5(4+7)=(5x4)+(5x7)
Answers
Answer:
distributive property
Step-by-step explanation:
equation of horizontal line passing through 2,10
Answers
Answer:
The answer would be Y=10
express with exponents: 2xxxmrr
Answers
Answer:[tex]2x^{3} mr^{2}[/tex]
Step-by-step explanation:
2 * xxx * m * rr
2 [tex]x^{3}[/tex] m [tex]r^{2}[/tex]
This is because [tex]x^{3}[/tex] is the same as multiplying x by its self, three times. The same goes for variables m and r.
2. If Q is the midpoint of line segment PR then what can you conclude
about segments PQ and QR? *
Answers
.......................
If a = -2, b= -5, and c = -6, then a - b + c=?
Answers
Answer:
a - b + c = - 3
Explain
a = - 2
b = - 5
c = - 6
Now,
a - b + c = - 2 - (-5) + (-6)
= - 2 + 5 - 6
= - 8 + 5
= - 3
Which ratio equals 224:32?
5:26
28:4
16:2
5:14
Answers
Answer: 28:4
Step-by-step explanation:
If you divide 224 by 32 you’re going to get 7. If you also divide 28 and 4 you’re going to get 7. Hope that helps!
Answer:
option 28:4 is the answer
What is the solution to equation?
4x+5=2x-3
Answers
2x = - 8
x = - 4
|2x-1|=5 please help
Answers
Answer:
X=3
Step-by-step explanation:
Answer:
x=3
Step-by-step explanation:
to check replace x with 3
|2*3-1|=5
|6-1|=5
|5|=5
Solve the equation
Z+3=-6
Z=????
Answers
Answer:
Z=-9 that is the question
4ax+5ax=3ax+6 i have no clue how to figure this out
Answers
Answer:
x= 1/a and a= 1/x
Step-by-step explanation:
PLEASE HELP ASAP! LOOK AT THE IMAGE
Answers
Answer: Number 1
Step-by-step explanation:
Because they’re negative the bigger #s are actually smaller and the smaller are bigger
Need help really badly
Answers
Answer:
Step-by-step explanation:
Points: A, C, E, B, D, F
Line: AB
Line segment: AC, CE, CD, DF, DB
Planes: P, M
Rays: CA, DB
Angles: <ACE=90,< CDF= 90
Parallel lines: line w and line t are parallel to each other
Perpendicular lines: EC is perpendicular to AD and FD is perpendicular to CB
Calculate the ratio to the nearest hundredth (Please do them all for me)
PLEASE!
Answers
Answer:
3.14
Step-by-step explanation:
all of them problem is 3.14
The solution of the every given ratio is 3.14.
What is pi?The number π is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159.
Given that, are the circle's circumferences and their diameters,
we need to find the ratio of both,
Since, we see that, the pi is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159.
So, when we will solve the ratios given we will get pi,
Because the ratios are of circumferences and diameters,
So, the value of each ratio is 3.14
Hence, the solution of the every given ratio is 3.14.
Learn more about pi, click;
https://brainly.com/question/7676604
#SPJ3
How do I do this. I don't know how to do it.
Answers
Answer:
I'm guessing, say all of them are 20 cm, by the looks of it
Answer:
I think your just guessing what the centi-meters are for that specific letter
Step-by-step explanation: I dont know :P
What factor is used to covert feet per minute into miles per minute
Answers
Answer:
Technical units conversion tool for speed and velocity measures. Exchange reading in feet per minute unit ft/min into miles per hour unit mph as in an equivalent measurement result (two different units but the same identical physical total value, which is also equal to their proportional parts when divided or multiplied).
One foot per minute converted into mile per hour equals = 0.011 mph
1 ft/min = 0.011 mph
Step-by-step explanation:
