Answers
Answer:
(2, 4)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = 2x
x = -y + 6
Step 2: Solve for y
Substitution
Substitute in x: y = 2(-y + 6)Distribute 2: y = -2y + 12Isolate y terms: 3y = 12Isolate y: y = 4Step 3: Solve for x
Define equation: x = -y + 6Substitute in y: x = -4 + 6Add: x = 2Related Questions
PLEASE ANSWER ASAP!!!!!!!!!!!!!!!!!!!!!
Yesterday, I put 10 gallons of gas in my car and I paid $30. A couple hours after, I went back to the gas station with my dad’s car and I put 6 gallons and I paid $18.
is this proportional or not?
Answers
HELPP ASAP!!!!
A. 2.5
B. 3.0
C. 4.5
D. 5.0
Answers
Answer:
C. 4.5
Step-by-step explanation
the sqr rt
In what proportion should water and milk be mixed to reduce the price of milk from Rs 5 per liter to Rs 4 per liter?
Answers
Answer:
4:1
Step-by-step explanation:
Let us assume that the cost of water is free, that is Rs.0.
Let x represent the number of liters of milk, y represent the number of liters of water and z represent the volume of the mixture in liters, hence:
z = x + y (1)
Milk cost Rs.5 per liter, water cost Rs.0 per liter and the mixture cost Rs.4 per liter. Therefore:
5x + 0(y) = 4z (2)
Substituting z = x + y in equation 2 gives:
5x + 0(y) = 4(x + y)
5x = 4x + 4y
5x - 4x = 4y
x = 4y
x / y = 4 / 1
x : y = 4 : 1
The proportion in which the milk is to be mixed with water is 4 : 1, that is 4 liters of milk per 1 liter of water
Enter the number 86.3865 rounded to the nearest hundredth (two decimal places)
Answers
Answer:
86.39
Step-by-step explanation:
Answer:
Your answer would be: 86.39
Step-by-step explanation:
Evaluate function expressions 4 x f(6) - 6 x g(5) =
Answers
9514 1404 393
Answer:
24
Step-by-step explanation:
Find the parts of the expression from the graph, and evaluate the expression.
f(6) = -6
g(5) = -5
Then we have ...
f(6) -6·g(5) = (-6) -6(-5) = -6 +30 = 24
The prime factorizations of 54 and 72 are shown below. Prime factorization of 54: 2, 3, 3, 3 Prime factorization of 72: 2, 2, 2, 3, 3 Using the prime factorizations, what is the greatest common factor of 54 and 72
1.2'3
2. 2' 3'3
3.2'2' 3'3
4.2'2'2'3'3'3
Answers
Step-by-step explanation:
54 = 2 * 3³
72 = 2³ * 3²
To find the GCF of 54 and 72,
we find the highest common powers of their prime factors.
Highest common power for 2: 2
Highest common power for 3: 3²
Hence GCF of 54 and 72 = 2 * 3².
The answer is Option 2.
Answer:
b/2'3'3
Step-by-step explanation:
Which equation has no solution?
A. 3x−9=5−3x
B. 3−3x=11+3x
C. −3x+7=7−3x
D. 3x+8=−2+3x
Answers
Answer:
C.
Step-by-step explanation:
C does not have a solution.
Can somebody help me on this problem please I will give you brainliest:)
Answers
20/12, 35/21 do the ratios form a propprtion
Answers
Explain how you can use multiplication to solve a division problem.
Answers
Answer:Inverse operation
Step-by-step explanation: an example is 5 x 5. That equals 25 so take 5 and divide that by 5. Inverse operation is important.
is this linear or non linear y=-7x+8?
Answers
Will give the brainliest answer
Answers
Answer:
I think it's C, because the figures are similar by THAT statement
What is the difference between 3 more than 1/3 and 3
Answers
Answer:
Step-by-step explanation:
3 more than 1/3 represents 3 + 1/3 Which would equal 3 and 1/3 or 10/3. This is different than 3 since it equals 9/3. They don’t equal each other due to it being 3 added to 1/3
the sum of 9 and the product of a number and -7 is -19
Answers
Answer:
9+x*-7=-19
9-7x=-19
-7x=-19-9
-7x=-28
x=-28/-7
x=4
The number 4 is the required expression.
What is PEMDAS?The abbreviation PEMDAS is used to indicate the sequence of steps to be taken when resolving expressions with multiple operations. P is for "parentheses," E is for "exponents," M is for "multiplication," D is for division, A is for addition, and S is for subtraction.
Let x be the required number.
And the given expression is the sum of 9 and the product of a number and -7 is -19
That means ,
9 + x × -7 = -19
Using PEMDAS,
9 - 7x = -19
-7x = -19 -9
-7x = -28
x = 4
Therefore, the required number is 4.
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HURRY PLEASE The top and bottom of a right rectangular prism are 4 inches long and 4 inches wide. What is true about the other faces
(front, back, left, and right)?
All four of the remaining faces will have a helght of 4 inches.
There is not enough information to tell what the other faces will look like.
Two of the remaining faces will be 4 inches wide.
All four of the remaining faces will be 4 inches wide.
Answers
Answer:
All four of the remaining faces will be 4 inches wide.Step-by-step explanation:
A right rectangular prism with square base and top with sides of 4 in.
It has four sides of 4 in wide each and of equal height of unknown measure.
Options:
All four of the remaining faces will have a height of 4 inches.
Incorrect, the height is unknown.There is not enough information to tell what the other faces will look like.
Incorrect, all the other faces are rectangular.Two of the remaining faces will be 4 inches wide.
Incorrect, all the faces are 4 in wide.All four of the remaining faces will be 4 inches wide.
Correct.PLEASE ANSWER ASAP!!!!!!!!!!!!!!
The equation m = 32 g represents the average number of miles, m, that a car can go on g gallons of gas. What is the constant of proportionality and what does it represent in this situation?
Answers
Answer:
32
Step-by-step explanation:
32 is the constant of proportionality. Its represents thr average number of miles per gallon.
Solve by linear elimination. 3x+y=-17. 5x-2y=13
Answers
Answer:
[tex]3x + y = - 17 - - - eqn(i) \\ 5x - 2y = 13 - - - eqn(ii) \\ by \: elimination \\ (2 \times eqn(i)) + eqn(ii) \\ (6 + 5)x + (2 - 2)y = ( - 34+ 13) \\ 11x = - 21\\ x = - \frac{21}{11} \\ substitute \: for \: x \: in \: eqn(i) \\ - \frac{ 63}{11} + y = - 7 \\ y = - 7 + \frac{63}{11} \\ y = - \frac{ 14}{11} [/tex]
Find the value for the side marked below.
Answers
Answer:
10x25=250250÷2=125125 round to the nearest tenth is 130 answer: 130 that how I learn it qwqWhich expression is equivalent to x+0.2x?
1.2x
0.2x2
0.2x
1.02x
Answers
Answer:
1.02x
Step-by-step explanation:
Which expression is equivalent to x+0.2x?
1.2x
0.2x2
0.2x
1.02x
the answer is
1x+0.2x = 1.02x
Probability Questions Help is needed plzzzzzzzzzz
Answers
Answer: 0.0049 hope this is right
The sum of two numbers is 136 one number is 51 what is the other number? What are the common factors of these two numbers?
Answers
X + 51 = 136
To solve for x we subtract both sides by 51.
X + 51 -51 = 136 - 51
X = 85
The other number is 85.
What are the common factors of these two numbers?
Factors are the numbers that multiply to make the product.
Factors of 51: 1, 51, 3, 17
Factors of 85: 1, 85, 5, 17
Select the correct answer. Which graph represents this inequality? 3x+y<1
Answers
Answer:
the answer is c the one above d
Step-by-step explanation:
There are 24 seats in each row of the middle school auditorium.
The table shows the number of students from each grade who
attended a concert. If the students fill each row in the auditorium,
how many rows would be needed for all of the students?
Grade
Number of Students
Sixth
310
Seventh
256
Eighth
262
Answers
Answer:
34.5
Step-by-step explanation:
310 +256 +262= 810
810÷24=34.5
simplify the xepression 10(x + 2)
Answers
Answer: 10x + 20
Step-by-step explanation:
10 (x + 2)
Distribute
10x + 20
Answer:
10x + 20
Step-by-step explanation:
10(x + 2)
distribute
10 * x + 10 * 2
10x + 10 * 2
10x + 20
A circle has a diameter of 10 cm. What is the circumference, and what is the area
Answers
Answer:
area=78.54cm squared
circumference =31.42cm
Is it
A.
B.
C.
D.
I really need help .
Answers
B. 9
-I hope this helps!
A bag of M&Ms had 4 red, 5 orange, 3 yellow, 2 green, 7 blue, and 3 brown candies.
What is the probability of drawing and eating red candy and then drawing and eating an orange candy?
Answers
Answer:
4/20 red 5/20 orange
Step-by-step explanation:
see how many their are then add up all the candies then boom theres your answer
Help me out from a through c (geometry/angle bisectors)
Answers
Answer:
A) supplementary
B) 148°
C) 50°
Step-by-step explanation:
A) supplementary
B) 180-32=148
C) 90-40=50
If (a+b)= -5 and ab= -150 , find a-b
Answers
Answer:
(a-b) = -25
Step-by-step explanation:
(a+b) = -5
a*b=-150
So one of the letters have to be negative as you can only get a negative product from a positive and negative
There is probably a better way to do this, but I just plug in numbers that I think will work
So, (a*b) = -150, (-15*10) = -150
Okay that works so lets try the other one
(-15+10) = -5
This also works, so lets do the third one
(-15-10) = -25
PLEASE HELP
Juan has $67 in $5 and $1 bills. If has 19 bills in all, how many $1 bills does he have?
Answers
Juan have 7 bill for $1 bills.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Juan has $67 in $5 and $1 bills.
And, He has 19 bills in all.
Now, Let number of $1 bills = x
And, Number of $5 bills = y
Here, Juan has $67 in $5 and $1 bills.
So, We get;
⇒ x + 5y = 67 .. (i)
And, He has 19 bills in all.
So, We get;
⇒ x + y = 19
⇒ x = 19 - y .. (ii)
Substitute the value of x from (ii) in (i), we get;
⇒ x + 5y = 67
⇒ 19 - y + 5y = 67
⇒ 19 + 4y = 67
⇒ 4y = 67 - 19
⇒ 4y = 48
⇒ y = 12
And, from (ii),
⇒ x = 19 - y
⇒ x = 19 - 12
⇒ x = 7
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