-3y-7x
When x=6, y=3
Select all the expressions that equal -2 − (-7).
Answer:
-2 + |-7|
and for other you can write -2 + 7
Answer : -2 + |-7|
Step - by - step explanation :
First, we have to find out what -2 - (-7) equals . . .
-2+7 --> 5
Second, check what all the other expressions equal . . .
2 + (-7) --> -5
-2 + (-7) --> -9
2 + 7 --> 9
-2 + |-7| --> -2 + 7 --> 5
Please help meeeeeeeee help help please
Answer:
27. My fiend solved the inequality correctly but graphed it incorrectly. The statement "x > 5" is correct but but since the symbol is "greater than" it should have been graphed with an open circle to the right rather than a closed circle to the right.
28. My friend is incorrect for both solving the inequality and graphing. The correct answer for solving the inequality would be "5 ≥ x ". And for graphing the correct answer would be closed circle to the right since the symbol is greater than.
Step-by-step explanation:
27. Solving the inequality
x - 7 > -2
+ 7 + 7
------- ------
0 5
answer: x > 5
Graphing the inequality
Since the symbol is greater than, it would be a open circle to the right because the the right of the number line is positives and the bigger numbers. It would be an open circle because unlike question 28 the symbol is just greater than, not greater than or equal to.
28. Solving the inequality
8 ≥ x + 3
-3 - 3
-------- --------
5 0
answer: 5 ≥ x
Graphing the inequality
Since the symbol is greater than than or equal to, it would be a closed circle to the right because the the right of the number line is positives and the bigger numbers. It would be an open circle because unlike question 27 the symbol is just greater than or equal to, not just greater than.
This might not be the right way to do it or the right answer for that matter, I am very new to solving and graphing inequalities so I just decided to give this one a shot.
Hope this helps ; )
estimate the solution of the equation to the nearest whole number.
7.8 + n = 38.2
Answer: 30
Step-by-step explanation:
The table shows the number of blue marbles and red marbles that four friends have collected.
Which person has the HIGHEST!!!! ratio of blue to red marbles?
Jasmine
Aaron
Lucian
Gretchen
Answer:
Gretchen
Step-by-step explanation
Jasmine: 12/10 : 1
Aaron: 3/2 : 1
Lucian: 1 : 1
Gretchen: 7 : 1
YOU BE THE TEACHER Your friend finds the slope of the line shown. Student work is shown. A line graphed on a coordinate plane. The line passes through the points at ordered pair 2 comma 3 and ordered pair 4 comma 1. A calculation is shown for the slope of the line. The first line reads, m equals start fraction 3 minus 1 over 4 minus 2 end fraction. The second line reads, equals start fraction 2 over 2 end fraction. The third line reads, equals 1.
Answer:
The slope of the line is -1
After applying the linear combination method, Heather arrived at the equation 0 = 60. What conclusion can be drawn about the system of equations? The equation has no solution; therefore, the system of equations has no solution. The equation has a solution at (0, 60); therefore, the system of equations has a solution at (0, 60). The equation has infinite solutions; therefore, the system of equation as infinite solutions. The equation has a solution at (0, 0); therefore, the system of equations has a solution at (0, 0).
Answer:
The correct answer is:
The equation has no solution; therefore, the system of equations has no solution.
Step-by-step explanation:
When solving a system of equations, after we combine the equations, if we find that there is no solution, that means that there is no solution to the entire system of equations.
Answer:
a
Step-by-step explanation:
rita reads 3 times as many fiction books as non fiction books. What is the ratio of fiction books to total books?? A.1:4 B:3 to 4 C. 3 to 3 D. 3:1
Answer:
d
Step-by-step explanation:
Answer:
B. 3:4.
Step-by-step explanation:
Fiction books. 3x
Non-fiction books. x
Total books read= 3x + x = 4x.
Fiction
................. = 3x = 3
Total 4x = 4
Hope that helps. x
a store sells laptops for 720 each. this price is 20 percent more than what it cost the store to buy each of them. before the next model's release, store employees can purchase any remaining laptops at 23% off the store's cost cost. how much would it cost an employee to purchase one of these laptops at the sale?
Answer:
462
Step-by-step explanation:
720 is 120% of the store price so to find the store price, we can muliply by the reciprical or 5/6.
720*5/6= 600
The employee can purchase the laptop at 23% off this price or at 77%. Multiply the price by 0.77 to get the employee price.
600*0.77 = 462
The total cost of the laptop at which an employee purchase is 482 and this can be determined by using the unitary method.
Given :
A store sells laptops for 720 each. This price is 20 percent more than what it cost the store to buy each of them. Before the next model's release, store employees can purchase any remaining laptops at 23% off the store's cost.The following steps can be used in order to determine the total cost of the laptop at which an employee purchase:
Step 1 - The unitary method can be used in order to determine the total cost of the laptop at which an employee purchases.
Step 2 - According to the given data, 720 is the 120% cost at which the store sells. So, the value of the 100% cost is:
[tex]=\dfrac{720}{120}\times 100[/tex]
= 600
Step 3 - Now, the employee can purchase the laptop at a 23% discount that is 77% of the original cost.
Step 4 - So, the total cost of the laptop at which an employee purchase is:
[tex]=\dfrac{77}{100}\times 600[/tex]
= 462
For more information, refer to the link given below:
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PLS HELP!! ME I NEED HELP!!!!
Answer:
i think its c
Step-by-step explanation:
Mr. Smith's class has collected 72 cans in a food drive. They plan to sort the cans into bags, with an equal number of cans in each bag. Write an expression to show how many cans there will be in each bag.
Answer:
C
Step-by-step explanation:
They are dividing the number of cans in to x bags equally.
Answer:
C
Step-by-step explanation:
Its c because your finding how many cans are in each bag so you will divide cans by bags. For example 72/8=9 bags
You mix 23.385 grams of sugar and 12.873 grams of baking soda in a glass container for an experiment. You place the container on a scale to find that the total mass is 104.2 grams. What is the mass of the container
The mass of the container is 67.942 grams.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that amount of sugar is 23.385 grams, the amount of soda is 12.873 and the total mass is 104.2 grams.
The weight of the container will be calculated as below:-
Total weight of sugar and sods = 23.385+12.873=36.258
Weight of container = 104.2-36.258=67.942
Weight of container = 67.942 grams
Therefore, the mass of the container is 67.942 grams.
To know more about an expression follow
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1. A ball is dropped from a height of 256 feet. After it hits the ground, it rebounds to a height that is 75% of its previous maximum height. Use proportional reasoning to complete the table.
Answer:
85.3333333333
Step-by-step explanation:
I think because all you have to do is 256÷3 because 75% is 3 quarters
Please help I can't figure out this question! Complete the inequality. I'll give brainliest to best and quickest answer!
[tex](-4 \frac{1}{2})[/tex] [tex]
(-3 \frac{3}{8})[/tex] [tex]-\frac{3}{4}[/tex]
The options are = and > and <. (Ignore the br it was a mistake and I can't fix it.)
Answer:
<
Step-by-step explanation:
p/ 1 6/7=−4.4 help please!!!!!!!
Answer:
Sorry, I can't type well.
The solution of the equation p / [1 ⁶/₇] = - 4.4 will be negative 8.17.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
The equation is given below.
p / [1 ⁶/₇] = - 4.4
Convert the mixed fraction number into a decimal number. Then we have
1 ⁶/₇ = 1 + ⁶/₇
1 ⁶/₇ = 1 + 0.857
1 ⁶/₇ = 1.857
Then the equation is rewritten as,
p / 1.857 = - 4.4
Simplify the equation, then we have
p = - 4.4 x 1.857
p = - 8.17
The solution of the equation p / [1 ⁶/₇] = - 4.4 will be negative 8.17.
More about the Algebra link is given below.
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which of these statements is true for f(x)=5x(6)^x
Answer:
The answer if B. Hope this helps.
Step-by-step explanation:
A middle school has an oval track with the dimensions shown. What is the distance around the track? use 3.14 for π. show your work.
Stella models a product with algebra tiles. Write a number sentence that best describes her model. Fill in the blanks.
Answer:
555 and 777
Step-by-step explanation:
Which answer choice shows the correct width and length of a rectangle with a perimeter of 220 inches?
A. Length: 40 in.; Width: 62 in.
B. Length: 11 in.; Width: 20 in.
C. Length: 10 in.; Width: 20 in.
D. Length: 50 in.; Width: 60 in.
Help me pls it won't let me unselect the one I clicked on
Find the total cost with tip.
Markup (tip $) = percent markup (tip %) x original cost ($)
Total cost = original cost + tip
Mr. Smith goes out to eat for his birthday. The total bill is $122.50. If Mr. Smith leaves a 20% tip, what is the tip amount? What is the total cost of the meal with tip included?
The tip is: $_________
The total cost of the meal is: $_________
Answer:
$147
Step-by-step explanation:
so to find 20% I usually divide the original cost by 100 to get 1% then multiply that number by 20.
in this case 122.50/100= 1.225, 1.225x20 = 24.5
24.5 + 122.50 = 147
WILL MARK BRAINLIEST PLS HELP. Fill in the table by following the rules provided for each backpack.
Answer:
See complete answer
Step-by-step explanation:
Backpack 2 is 2x, 2y, so double each number:
(0,2) = (0, 4)
(8,2) = (16, 4)
(6,5) = (12, 10)
(2,5) = (4, 10)
(0,2) = (0,4)
Backpack 3 is x + 8, y - 2 so add 8 to x and subtract 2 from y:
(0,2) = (8, 0)
(8,2) = (16, 0)
(6,5) = (14, 3)
(2,5) = (10, 3)
(0,2) = (8, 0)
Backpack 4 is x, 2y, so keep the same x and multiply y * 2
(0,2) = (0, 4)
(8,2) = (8, 4)
(6,5) = (6, 10)
(2,5) = (2, 10)
(0,2) = (0,4)
Write 28 x 32 in commutative property
Answer:
32 * 28
Step-by-step explanation:
a * b = b * a
So you just change the switch the numbers in the equation to the other side.
Plz, help! Plz, write answer in complete sentences!
Answer:
18
Step-by-step explanation:
If 4050 divided by the mystery number is 225, then 4050 divided by 225 is the mystery number. 4050 divided by 225 = 18, so 18 is the mystery number.
what happens if you take 65% of $21.00 and compute 110% of the reduced price
Answer:
21.94
Step-by-step explanation: because i did some basic math
help me plz I need it
Rewrite 1/5 as 4/20
Now add 2 + 3 = 5
1/20 + 4/20 = 5/20
Answer: 5 5/20
Answer:
Answer: 5 5/20
Step-by-step explanation:
1/5 as 4/20 Now add 2 + 3 = 51/20 + 4/20
Which questions can be answered using the expression 2\3 divided by 5\4
Answer: 8/15
Step-by-step explanation:
2/3 divided by 5/4:
To make the answer to 2/3 divided by 5/4 in decimal form, you simply divide the numerator by the denominator from the fraction answer:
8/15 = 0.5333
Answer:
8/15
Step-by-step explanation:
2/3 / 5/4 = 8/15
Can anybody help me with this question and show me how to do it step by step, ASAP?! Btw, this question is for solving systems by elimination. I really need to sleep, and I just want to get a good grade on this.
Carl bought 19 apples of 2 different varieties to make a pie. The total cost of the apples was $5.10. Granny Smith apples cost $0.25 each and Gala apples cost $0.30 each. How many of each type of apple did Carl buy?
Answer:
Step-by-step explanation:
Split 19 into 2, since Carl bought two types of apples.
19/2 = 9.5
0.25 x 9 = 2.25
0.3 x 9 = 2.7
2.25 + 2.7 = 4.95
5.10 - 4.95 = 0.15
0.3 x 8 = 2.4
2.25 + 2.4 = 4.65
5.1 - 4.65 = 0.45
find the area of these shapes:
Answer:
4. 25.12 cm²
5. 28.56 cm² (square = 16 cm²) (semi-circle = 12.56 cm²)
Step-by-step explanation:
2/5 divided by 6/7 in FRACTION FORM
no links, out of context answers, or vile comments, ty
Answer:
Step-by-step explanation:
Find the reciprocal of the divisor
Reciprocal of
6/7 : 7/6
Now, multiply it with the dividend
So, 2/5 ÷ 6/7 = 2/5 × 7/6
= 2 × 7/5 × 6
= 14/30
After reducing the fraction, the answer is
7/15