The expression, (6x - 2) - (-x + 5), is simplified as 7x - 7. The student's error was wrong calculation in the final steps where he subtracted 2 from 5.
What is a Simplified Expression?A simplified expression is an expression that is evaluated to its simplest form, that is, it cannot be simplified further.
Given:
(6x - 2) - (-x + 5)
Open the bracket by multiplying each of the terms in (-x + 5) by the negative sign (-):
6x - 2 + x - 5
Combine like terms
7x - 7
Thus, the expression, (6x - 2) - (-x + 5), is simplified as 7x - 7. The student's error was wrong calculation in the final steps where he subtracted 2 from 5.
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Calculate the value of x if 72:64=x:16
Answer:
x = 18
Step-by-step explanation:
Set up as proportion and cross multiply to solve:
72/64 = x/16
x = 18
If 1 inch represents 10 miles on a map, then how many inches will represent
120 miles?
Answer:
12 inches
Step-by-step explanation:
120/10 * 1 = 12 inches
Answer:
12 inches
Step-by-step explanation:
This question is asking for us to find the amount of inches that is represented to the amount of miles given (120 miles). In order to do this, let's divide the amount of miles that we need to find out for inches, over what information we already have. By dividing 120 over 10, that will give us the amount of inches that 120 miles represents. So:
120 miles / 10 miles = 12 inches.
This is true, because fractions are basically like division. As our example shows, 120 ÷ 10 = 12, which is true.
I hope that this helps.
Find the surface area
Answer:
486 inches^2
Step-by-step explanation:
Answer:
Step-by-step explanation:
9 x 9= 81
81 x all sides:
81 x 6 = 486in2 (squared)
Using the drawing below identify the figure represented by the letters?
HELP!!! Use the distributive property and solve this equation: 7(z - 6) + 13 = 20
Juan is running a race. He ran for 3 hours at a speed of 7.5 miles per hour. For how many miles does he run
d = v x t
d = 7.5 miles/h x 3 = 22.5 miles
Answer:
22.5 miles
Step-by-step explanation:
3x7.5=22.5
please help i dont understand these and i need help
use geometric mean to find
x=
y=
z=
Answer: Look at explanation for the answer please, I am too exhausted to type the answer here
Step-by-step explanation:
y = 10sqrt(5) from the pythagorean theorem
The angle opposing z is arctan(2)
So, find z by the equation
z/y = tan(arctan(2)) = 2
z = 20sqrt(5)
And finally, find x by the pythagorean theorem
x = sqrt(1600) = 40
pls help plssss
105 + 75 ÷ 5 + 50
a = 80
b= 140
c= 150
d= 70
Answer:
170
Step-by-step explanation:
105 + 75 ÷ 5 + 50
= 105 + 15 + 50
= 120 + 50
= 170
=》None of the options are correct.
Hope it helps ⚜
Which inequality is true?
3<2
-5<6
-6<5
-6>-5
1. 3 is not smaller than two
2. -5 is smaller than six
3. -6 is smaller than five
4. -6 is not bigger than negative 5
So, 2 and 3 are correctPLEASE HELP!!!
Find the sum of all solutions to the equation 4x(x-3) = 23.
NEED THE ANSWER NOW WILL GIVE BRAINLIEST IF RIGHT WORRH 100 POINTS What is the length of the base of a right triangle with an area of 24 square meters and a height of 4 meters? 3 m O 6m O 12 m O 96 m
Answer: answers 12 m
Step-by-step explanation:
took the test
Arnie saw a camera priced at £250 in London. He saw
the same camera priced at $297.50 in New York. This
is a 30% saving on the London price. How many
dollars are there to the pound?
Answer:
ok so lets just make this into a equation so
250=0.7*297.50
250=425
so lets just divide by the same amount
10=17
so
1.00 of american money=1.70 of british money
Hope This Helps!!!
3. Matthew is making apple pies at home. He has 24 apples to
Each pie requires 5 apples. How many pies will Matthew be able to make?
Answer:
He is able to make 5 pies with 4 apples left over.
________________
If we divide 24,23,22,21 by 5 we get decimals, but if we divide 20 by 5 we get a whole number, which means a full amount of a pie.
Two kindergarteners participated in a fundraiser event "Walk
Backwards for Hunger" last weekend. John walked 2/3 of a mile and Mary
walked 3/4 of a mile. Together, they raised $93.50. How much money, each, did
John and Mary raise? Just so you know, the amount raised is proportional to
distance walked
Answer:
John = $44 Mary = $49.50
Step-by-step explanation:
2/3 + 3/4 = 17/12
17/12x = 93.5
17/12x x 12 = 93.5 x 12
17x = 1122
17x/17 = 1122/17
x = 66
2/3x = 66 x 2/3
2/3x = 44
3/4x = 66 x 3/4
3/4x = 49.5
44 + 49.5 = 93.5
John earned $44 while Mary earned $49.5.
Sorry that the explanation was long, but I hope this helps! =D
Please answer the question in the picture
Answer:
True
Step-by-step explanation:
The polynomial is a perfect square.
There are 1213 registered voters in Paul's village. During the last election 887 people actually voted. Which of the following is approximately the ratio of the number of the people who voted to the total number of registered voters in the village?
Answer:
3 : 4
Step-by-step explanation:
Given:
1213 = total number of registered voters887 = people who votedratio of people who voted to total number of registered voters:
To find the approx ratio, round both numbers to the nearest hundred:
887 ≈ 9001213 ≈ 1200Therefore, 887 : 1213 ≈ 900 : 1200
The greatest common factor of 900 and 1200 is 300,
so we can reduce the ratio further by dividing both sides by 300:
⇒ 900 : 1200 = 3 : 4
subtract 4x square+5xy+3y Square from 7x Square - 4xy-y square
Answer:
11x²-9xy-y²-3y
Step-By-Step Explanation:
1. (7x²-4xy-y²) - (4x²+5xy+3y)
2. (7x²-4x²-4xy-5xy-y²-3y)
3. (11x²-9xy-y²-3y)
Answer
11x²-9xy-y²-3y
If this helped, please consider picking this answer as the Brainliest Answer. Thank you!
2) If a spider can move 6/5 miles every hour, then how many hours would it take for a
spider to go 12 miles?
Answer:
12 x 6/5 = 14.4 hours
Answer:
14.4
Step-by-step explanation:
If you do 6/5x12 you would get 14.4 because 6/5x12/1
72/5=14.4
Heather went for a drive in her new car. She drove at a speed of 51 miles per hour for 81.6 miles. For how many hours did she drive?
Answer: 16 hours
Step-by-step explanation:
81.6/51= 1.6
the graph f (x) = 4/x2-2x-3 is shown. For which value of x is f(x) decreasing?
Answer:
2nd option
Step-by-step explanation:
the graph is decreasing when the slope of the curve is negative.
This means the graph is sloping downwards.
This occurs between 1 and 3 and from 3 to ∞
The interval in which f(x) is decreasing is then
(1, 3 ) U (3, ∞ )
HELP PLS THIS IS DUE TODAT
Answer:
Reflection over line y = - 2Step-by-step explanation:
This is a reflection over a horizontal line.
Let's find the line by calculating the difference of the y-coordinates of corresponding points:
G has y = 3, G' has y = - 7The middle line is:
y = 1/2(3 - 7) = - 2A Tom bought these 3 t shirts at the sale price of $ 14. 50. How much money did he save compared to the original total of the t shirts B what percentage of the total price did Tom save
Answer:
$2.47
14.6%
Step-by-step explanation:
Total of the original prices:
$3.99 + $6.99 + $5.99 = $16.97
He paid $14.50 for the 3 shirts.
$16.97 - $14.50 = $2.47
He saved $2.47.
The percent he saved is
2.47/16.97 × 100% = 14.6%
If you roll a standard six-sided die, what is the probability that you get a 1, 2, 3, 4, or 6?
Answer:
5
Step-by-step explanation:
this is because there is totally 6 side and there is 5 character for the probability
50 points, please help
What is the amplitude of the function shown in the graph?
Enter your answer in the box.
Answer:
1.5
Step-by-step explanation:
Amplitude: the height from the center line to the maximum or minimum point.
We can either determine the center line, or we can measure the height between the max to min points and divide that by 2.
From inspection of the graph, the max points are at y = -0.5 and the min points at y = -3.5
Therefore, the distance between them = -0.5 - -3.5 = 3
Divide by 2 = 3/2 = 1.5
Therefore, the amplitude = 1.5
(see attached graph for visual representation)
MF lent $5,000 to Amit on January 01, 2020. (For simplicity, we assume there is no interest.) At the time of loan issuance, MF estimated that $500 of loans receivable would probably be uncollectible, based on their knowledge of historical credit losses.
From the information given regarding the loan, the amount that will be expected is $4500.
What is an uncollectible loan?It should be noted that an uncollectible loan or account uncollectible are the receivables or loans that have no chance of being paid.
From the question, the amount lent is $5000 and the uncollectible is $500. Therefore, the amount that will be expected to be collected will be:
= $5000 - $500.
= $4500
In conclusion, $4500 will be expected.
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Evaluate :
56 - 2(20 + 12 ÷ 4 x 3 - 2 x 2) + 10
PLEASE HELP!!!!
Solution:
Reviewing the BODMAS:
B = BracketsO = Order of powers or rootsD = DivisionM = MultiplicationA = AdditionS = SubtractionSolving the expression:
56 - 2(20 + 12 ÷ 4 x 3 - 2 x 2) + 10=> 56 - 2(20 + 3 x 3 - 2 x 2) + 10=> 56 - 2(20 + 9 - 4) + 10=> 56 - 2(20 + 5) + 10=> 56 - 2(25) + 10=> 56 - 50 + 10=> 56 - 40=> 16The solution to the expression is 16.
Answer:
16Step-by-step explanation:
Evaluation Operation
= 56 - 2(20 + 12 ÷ 4 x 3 - 2 x 2) + 10 Parenthesis
= 56 - 2(20 + 12 ÷ 4 x 3 - 2 x 2) + 10 Divide
= 56 - 2(20 + 3 x 3 - 2 x 2) + 10 Multiply
= 56 - 2(20 + 9 - 4) + 10 Add
= 56 - 2(29 - 4) + 10 Subtract
= 56 - 2(25) + 10 Multiply
= 56 - 50 + 10 Subtract
= 6 + 10 Add
= 16 Result
Learn more:
brainly.com/question/26555025
Social studies
brainly.com/question/26539371
Mathematics
brainly.com/question/26537282
Divisibility - Math
brainly.com/question/26525264
Mathematics
Thank You!
Answered by: ms115
#learnwithbrainly
please help me quick!!
complete the equation represents the relationship between s and u?
By inspection, each value of u is obtained by multiplying s by 14.
So the relationship is s=14u.
I need help and I don’t understand this
Answer:
The ratio is 1/2 : 2.
The value of the ratio is 1/4.
The amount of salt in the recipe is 1/4 the amount of flour.
Step-by-step explanation:
The ratio of the salt to flour is the amount of salt and the amount of flour
1/2 cup salt and 2 cups flour would be 1/2 : 2 The value of a ratio is the ratio simplified (if we make the 1/2 a whole number we would multiply both sides of the ratio by 2 to get 1:4 or 1/4).
1/2 cup is a fourth of 2 cups
I'm not super familiar with ratio values but I'm pretty sure this is correct.
What is the area of this parallelogram?
A = 20 ft²
A=2123 ft²
A=3313 ft²
A=4123 ft²
Answer:
33.33 ft²
Step-by-step explanation:
→ Write down the formula for the area of a parallelogram
base × height
→ Substitute in numbers
[tex]8\frac{1}{3} *4[/tex]
→ Simplify
33.33 ft²
Answer: A=33 1/3 ft²
Step-by-step explanation:
PLEASE HELP ME QUICKKK, FIRST CORRECT PERSON GETS BRAINLIEST
Answer:
20,000
Step-by-step explanation:
We can create a proportion to find the total budget. A proportion is an equation where two ratios are set equal to each other. We create two fractions using the budget and percents.
\
Answer:
the company's total budget is 20,000
Step-by-step explanation:
A company spends 13% of its month budget on rent which total $2600
Let x be the month budget on rent
13% of the month budget is 2600
13% can be written as 13/100
Now we solve for x
multiply both sides by 100
divide both sides by 13
x=20000
So, the company's total budget is 20,000
( got from this guy ) markwa