Answers
9514 1404 393
Answer:
x = 18
Step-by-step explanation:
The parallel lines cut the transversals proportionally.
(2x -1)/40 = 21/24
2x -1 = 35 . . . . . . . multiply by 40
2x = 36 . . . . . . . . add 1
x = 18 . . . . . . . . . divide by 2
Related Questions
Amit solved the equation 5/12 = -x/420 for x using the steps shown below. What is Amit's error?
5/12 = -x/420
5/12(420) = -x/420(420)
x = 175
A: Amit should have multiplied both sides by 5/12
B: Amit should have multiplied both sides by 12/5
C: The product of 5/12 and 420 is not equal to 175
D: The product of 5/12 and -420 should have been the value of x
Answers
Answer:
D: The product of 5/12 and -420 should have been the value of x
Step-by-step explanation:
Took the test
PLEASE HELP ME this is a 7th grade math test
Answers
Answer:
is there a picture or something
Step-by-step explanation:
or like some equation? Im in 7th grade too but i need a picture in order to help you So when u get a picture i edit my anwser and help you
Solve the system of linear equations. - 3x + 5y = 13 x + 4y = -10
Answers
Answer:
x = -6 and y = -1
Step-by-step explanation:
10. A teacher gave a test to three classes that contained 27, 25, and 23 students. A total of 18 students scored an A on the test. Based on this information, which statement is true? *
Answers
Answer:
Pls give us the statements
A fish tank in the shape of a right rectangular prism is 12.5 inches long, 6 inches wide and 8 inches high.
What is the total amount of water needed, to the nearest cubic inch, to fill 90% of the fish tank with water?
A: 610 cubic inches
B: 690 cubic inches
C: 540 cubic inches
D: 90 cubic inches
Answers
Answer:
I just did this a couple days ago try 690
Step-by-step explanation:
Grace and her friend are doing some back to school shopping , Grace buys 4 binders and notebooks for 26.50 totalHer friend spends a total of $21.00 on 3 binders and 6 notebooks
Answers
Answer:
What is the question asking to answer?
Step-by-step explanation:
Answer:
$19:50
Step-by-step explanation:
Write a system of equations to represent the problem. Let x represent the cost of a binder, and let y represent the cost of a notebook.
Grace buys 4 binders and 7 notebooks for $26.50 total, so the equation 4x+7y=26.50 represents how much Grace spends.
Grace's friend buys 3 binders and 6 notebooks for $21.00 total, so the equation 3x+6y=21 represents how much her friend spends.
You can use this system of equations to find how much money Grace and her friend spend on notebooks:
4x+7y=26.50
3x+6y=21
Next, find how much Grace and her friend spent on notebooks. Start by finding the cost of one notebook. Use elimination to solve for y. .
3(4x+7y)=3(26.50)
–
12x+21y = 79.50
–
4(3x+6y)=
–
4(21)
–
12x–24y =
–
84
–
3y =
–
4.50
y = 1.50
Each notebook costs $1.50. Grace and her friend buy a total of 13 notebooks, so multiply to find how much money they spend on notebooks.
13$1.50=$19.50
Grace and her friend spend $19.50 total on notebooks.
I need help with my math assignment
Answers
Answer:
B. 89
Step-by-step explanation:
LOE + EOV = LOV,
becomes
[tex]7x+12+4x+9=142\\11x+21=142\\11x=121\\x = 11[/tex]
LOE = 7x + 12, so:
[tex]7 * 11 + 12\\77 + 12\\89[/tex]
Describe and correct the error in solving the equation. Help so I can pass math
Answers
Answer:
you subtract seven not add it.
Step-by-step explanation:
jus trust
Answer:
Step-by-step explanation:
Should subtract 7 not add.
x + 7 = 13
-7 -7
x = 6.
Find the value of x.
125°= (5x + 30)
Answers
Answer: the answear is 19
Step-by-step explanation:
first you subtract 30 from the 30 and the 125 which takes out the 30 and makes the 125, 95
second you divide 5 by 5 and cross it out
then you divide 95 by 5 and get 19 which is your answer
What is the area of a closet that is 6 feet wide and 10
4
110 feet long?
A 642 square feet
B 60 square feet
C 45 square feet
D 16, square feet
Answers
This is because 6 multiplied by 10 equals 69 square feet long.
6. Seven-tenth of a number is 28. What is the number? *
Answers
Answer:
40
Step-by-step explanation:
28 divided by 7= 4 (to get the number of 1/10)
4 x 10= 40
Answer:
40
Step-by-step explanation:
7/10x = 28
28/0.7 = x
40 = x
By rounding to 1 significant figure, estimate
361.42 / 79.45
Answers
Answer: 5
Step-by-step explanation:
To solve this, we would have to divide 361.42 by 79.45. This will be:
= 361.42 / 79.45
= 4.549
We can see that 4.549, has 4 significant digits. By the time we round it off to 1 significant number, we would have 5.
Identify the diameter of the follow circle. Anybody help?
Answers
Answer:
32 in
Step-by-step explanation:
The diameter is 32.
Step-By-Step Explanation:
The diameter is the radius multiplied by two
How much thyme leaves would you need to make 24 servings?
A) 1/12 tsp
B) 3/12 tsp
C) 3/4 tsp
D) 1/4 tsp
Answers
Answer:
c
...................
Answer:
3/4 tsp
Step-by-step explanation:
To find out how much thyme you would need, set up a proportion of thyme to servings and solve: 1/4 tsp/8 servings = x tsp/24 servings
Gabriel contributes 19% of the total cost of bis health care coverage. He pays $38.80 every week towards this contribution. How much does his employer contribute to his health care coverage for the year?
Answers
Around $160.
Hope this helps a little bit.
simplify expressions for 3c-4m and m=5 and c=4
Answers
Answer:
12-20=-8
Step-by-step explanation:
Multiply 3 by c which is 4=12 multiply -4 by m which is 5 which equals 20
Pls give brainliest
Of the 950 students enrolled in a soccer league, 42% are in middle school. How many students in the soccer league are in middle school?
68
399
509
908
Answers
Hope this helps :)
Check Your Understanding- Question 3 of 5
A baseball has a radius of about 1.44 inches. What is its approximate volume?
A. 100 in
B. 123 in
C. 8.7 in 3
D. 12.5 in 3
HINT
SUBMIT
Answers
Answer:
D: 12.51 is the correct answer
Answer:
[tex]V=12.5\,\,in^3[/tex] (answer D)
Step-by-step explanation:
Recall that the volume (V) of a sphere in temrs of its radius (R) is given by the formula:
[tex]V=\frac{4}{3} \pi R^3[/tex]
Therefore, in our case we have:
[tex]V=\frac{4}{3} \pi 1.44^3=12.5\,\,in^3[/tex]
Construct a triangle with side lengths 6,6 and 6. what are the angle measures of a triangle
Answers
Answer:
60 degrees
Step-by-step explanation:
Hello! The side lengths of this triangle are all the same, so this is an equilateral triangle. These types of triangles have equal angles. A triangle equals 180 degrees so divide that by three. Each angle in this triangle is 60 degrees. Hope this helps :)
Select the numbers that have a factor of 5. Mark all that apply.
D
2
A 15
5
3.
(В)
E
50
(F) 31
© 45
Answers
Answer:
a number ending in 0 or 5 has a factor of 5
Step-by-step explanation:
5 is a factor of
5, 10, 15, 20, 25...
any number that ends in 0 or 5 would qualify
A fair coin is flipped 10 times and lands on heads 8 times. Why is there a difference between the experimental and theoretical probabilities of observing 8 heads in 10 coin flips?
A.
Since the number of heads in the 10 coin flips is 8, the theoretical probability of observing a head in a coin flip increases from 0.5 to 0.8.
B.
Since 10 is a large enough number of trials, there is probably some error in the recording of the coin flip outcomes.
C.
The theoretical probability has no basis in reality, so the new probability of flipping heads is now 0.8.
D.
There should be a larger number of trials. With 500 flips of the coin, the experimental probability will likely approach the theoretical probability of 0.5.
Answers
Answer:
its D
Step-by-step explanation:
Beacsue i just think its d the rest
Answer:
its D
Step-by-step explanation:
A map has a scale of 2 in : 6 mi. If Clayton and Centerville are 10 in apart on the map, what is the actual distance between the two cities?
Answers
Do this 2/6 times 10 that will give you 20/6 if you need to simplify then it is 10/3 hope that helps
Step-by-step explanation:
A diner charges $0.80 per egg and $3.00 for three pancakes. Another diner charges $5.00 for three pancakes and $0.30 per
egg
If a customer orders three pancakes, the two diners charge the same amount for the order if the customer also orders
eggs.
Answers
Answer:
If the eggs cost $0.80 per egg, then that'll be 9 eggs and for eggs costing $0.30, it would be 4 eggs to make each place cost the same
Jasmine ran 5 miles in 42 minutes.
Part A
At what rate did Jasmine run?
Jasmine ran at a rate of
minutes per mile.
Question 2
Part B
Katie ran 4 miles. She ran at a rate that was 1.1 minutes per mile slower than Jasmine. For how many minutes did Katie run? Explain how you determined your answer.
HELPPPPPPPP.
Answers
A dripping faucet leaps 1.8 ounces per minute. How many ounces leak in 30 minutes?
Answers
Answer:
54 ounces
Step-by-step explanation:
1.8 * 30 = 54
Evaluate !! look at photo please i need help
Answers
Answer:
[tex]Sum = 832[/tex]
Step-by-step explanation:
Given
See attachment
Required
Evaluate
The expression can be expressed as:
[tex]Sum = 2n + 5;\ n=1...26[/tex]
To do this, we make use of sum of n terms of an AP.
When n = 1
[tex]2n + 5 = 2 * 1 + 5 = 7[/tex] --- T1
When n = 2
[tex]2n + 5 = 2 * 2 + 5 = 9[/tex] --- T2
When n - 26
[tex]2n + 5 = 2 * 26 + 5 = 57[/tex] --- T26
Next, we calculate d (common difference)
[tex]d = T_2 - T_1[/tex]
[tex]d = 9 - 7 = 2[/tex]
So, the sum is:
[tex]Sum = \frac{n}{2}(T_1 + T_n)[/tex]
Let n = 26
So, we have:
[tex]Sum = \frac{26}{2}(T_1 + T_{26})[/tex]
Substitute values for T1 and T26
[tex]Sum = \frac{26}{2}(7+57)[/tex]
[tex]Sum = \frac{26}{2}(64)[/tex]
[tex]Sum = 13*64[/tex]
[tex]Sum = 832[/tex]
Find the value of the variables in the following diagrams.
Answers
3. Thomas argues that a quadrilateral with one pair sides congruent and the other pair
of sides parallel is always a parallelogram. What is wrong with Thomas' argument?
Answers
Step-by-step explanation:
one pair of side equal and other could be a trapezium as well...
he should have told that the two pair of sides are equal and parallel...
Use a calculator to determine the answer to 4.25 x
6.86?
Your answer isn't correct yet.
Once you submit your answer, does this fit the same
pattern as all of the previous calculations. In the
explain box, explain why or why not.
Submit and Explain
Answers
You didn't provide enough information.
4.25 x 6.86 = 29.155
Which of the following'illustrates the truth value of the given conditional statement?
p: 10 > 7
q. 10 > 5
~p→q
Answers
Step-by-step explanation:
?I'm not sure what you are trying to say
