Answer:
\frac{1}{2}s=\frac{7}{2}
Step-by-step explanation:
Answer:
s=− 2/7 =−3.500
Step-by-step explanation:
Which symbol would make this statement true?
6 __ 8
1. =
2.
4. ≤
5. ≥
Answer:
<
Step-by-step explanation:
because 8 is a higher number than 6
Answer:
4.<
Step-by-step explanation:
8 is greater than 6
The perimeter of a square is 80-60y units. Which expression can be used to show the side length of one side of the square?
A. 16(5-4y): Each side measures 5-4y units.
B. 16y(5-4): Each side measures 5-4y units.
C. 4(20-16y): Each side measures 20-16y units.
D. 4y(20-16): Each side measures 20-16.
Find the solution to the system of equations below. 7x+3y=12 and 7x-3y=30
A.(7, 3)
B.(-3, 3)
C.3, -3)
D.(2, -2)
Answer:
C. (3, -3)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS Equality PropertiesAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define systems
7x + 3y = 12
7x - 3y = 30
Step 2: Solve for x
Eliminate y: 14x = 42Isolate x: x = 3Step 3: Solve for y
Substitute in x: 7(3) + 3y = 12Multiply: 21 + 3y = 12Isolate y term: 3y = -9Isolate y: y = -3And we have our final answer!
Which of the following number lines represents the solution to m/-2 - 7 = -9?
Answer:
Step-by-step explanation:
the answer is a. (the first one)
Number lines are used to represent relationship between numbers at regular intervals
The number line that represents the equation [tex]\frac{m}{-2} - 7 = -9[/tex] is number line (c)
The equation is given as:
[tex]\frac{m}{-2} - 7 = -9[/tex]
Add 7 to both sides of the equation
[tex]\frac{m}{-2} = -2[/tex]
Multiply both sides of the equations by -2
[tex]m = 4[/tex]
This means that, the solution to the equation is [tex]m = 4[/tex]
The number line that represents [tex]m = 4[/tex] is number line (c)
Read more about number lines at:
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The surf instructor has an initial fee of $12 and charges $8 per hour for lessons, which is represented by the equation y = 8x + 12, where x is the number of hours and y is the total cost. The instructor gives 32 hours of lessons a month to Sandra and 24 hours of lessons a month to Bela. What is the total amount the instructor makes in a month? Sandra: y = 8 (32) + 12. y = 256 + 12. y = 268. The instructor receives 268 dollars a month from Sandra. The instructor makes $ a month.
Answer:
$472
Step-by-step explanation:
I got it right on edge.
Which of the expressions are equivalent to the one below? (14+4)/6
Answer:
(A)
Step-by-step explanation:
This sign - / Is the same as this sign - ÷
14+4 = 4+14
This is why (4+14)÷6 = (14+4)/6
Hope this Helps!!! :)
Let me know if this answer was perfect in the comments or if I should change anything! :)
Maria said that -4n + 3 +9n - 4 is equivalent to 4n. What error did maria likely make?
The error that Maria did was combining all the factors in the algebraic expression without collecting the like terms to a particular side to solve for the variable (n).
What is an Algebraic expression?Algebraic expression involves solving numbers with variables with the use of arithmetic operations e.g.
AdditionSubtractionMultiplicationDivisionClaim:
Maria Said that:
-4n + 3 + 9n - 4 = 4nIf we ignore the like terms and assume all numbers have a variable (n);
Then, we have:
-4n + 3n + 9n - 4n = 4nLearn more about Algebraic expressions here:
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Please Help!
Simple interest:
Use formula I=PRT
Find t when
i=$129.6
r=4%
p=$540
Answer:6=t
Step-by-step explanation:
129.6=540*0.04*t
129.6=21.6*t
6=t
Answer:
t=6 or 6=t
Step-by-step explanation:
Which translation matches the inequality?
x/7.4 ≤ 19.8
A) The difference of a number and 7.4 is less than 19.8.
B) The quotient of a number and 7.4 is at most 19.8.
C) The difference of a number and 7.4 is no more than 19.8.
D) The quotient of a number and 7.4 is at least 19.8.
Dan and Alan take turns mowing the grass of a yard that is 2400 square yards in area. Dan takes an hour to mow the whole lawn using his old mower. Alan only takes 40 minutes to mow the whole lawn using his new mower.
As you answer the following questions, don't forget to show your units!
A. How much lawn does Dan mow in a minute?
B. How much lawn does Alan mow in a minute?
B. How many more square yards does Alan mow in a minute than Dan?
Answer:
Step-by-step explanation:
to rent a car for a trip, four friends are combining their money. The group chat shows the amount of money that each puts in. One expression for their total amount in 189 plus 224 plus q.
a.) Use the Commutative Property to write two equivalent expressions.
b.) If they need $500 to rent a car, find at least two different pairs of numbers that p and q could be.
Answer:
1. 189+224+87 2. 500- 189-224
B. q=87
Step-by-step explanation:
The Commutative Property to write two equivalent expressions are (189+p)+(224+q) or (224+q)+(189+p) and p=44 and q=43 is a pair of numbers or p=45 and q=42 is another pair of numbers which satisfy the condition of car.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given,
The amount of money that each friend puts in One expression for their total amount in 189 plus 224 plus q.
189+p+224+q
the Commutative Property to write two equivalent expressions.
(189+p)+(224+q)
or (224+q)+(189+p)
Now if they need $500 to rent a car,
then 189+p+224+q=500
413+p+q=500
Then p=44 and q=43 is a pair of numbers or p=45 and q=42 is another pair of numbers.
Hence, the Commutative Property to write two equivalent expressions are (189+p)+(224+q) or (224+q)+(189+p) and p=44 and q=43 is a pair of numbers or p=45 and q=42 is another pair of numbers which satisfy the condition of car.
To learn more on Equation:
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The drama club has 14 members. They need to raise $952.00 to attend a play at the Fox Theater. They already have $126 in their account. What is the least amount of money each student needs to raise in order to go to the play?
A- m ≥ 59
B- m ≥ 60
C- m ≥ 64
D- m ≥ 68
Answer:
A- m is greater that or equal to 59
Step-by-step explanation:
So, they need to raise at least $(952-126)=826.
826/14=59. So each member has to raise at least $59.
Please help me with this. Thank you!
a____
B____
c___
2____
3___
Answer:
i have done these equations before but i cannot make out what the equation is
Step-by-step explanation:
how write an equation a graph
Answer:
So what we need to do to write the equation is to know our slope or rate of change and to know our initial value or where the line is touching the y axis the y intercept.
Find the smallest common multiple (PPMC) of 4 and 8:
Answer:
8
Step-by-step explanation:
can someone help me out? :P
9514 1404 393
Answer:
181
Step-by-step explanation:
The tagged deer seem to represent about 17/110 of the population. Since there are 28 deer with tags, the population (p) is estimated to be ...
110/17 = p/28
p = 28(110/17) ≈ 181
There are about 181 deer in the woods.
Given the equation 11.5 - 3y = -48.5, what are the equivalent equations? Choose all that apply.
Answer: 60-3y=0
-3(y-8.3333)= -48.5
John bought 2 video games for $46 from Game Stop. Then, he went online to Amazon and bought 3 video games for $70.50
Which store sells the cheapest video game? Just say the answer for a free brainiest
Answer:
Game stop is selling the cheaper video game.
Step-by-step explanation:
game stop=$23 each game amazon=$23.5 each game.
Answer:Game Stop is cheaper
Step-by-step explanation:
2 videogames cost 46$ 46 x 2 = 92
3 x 70.50 = 211.5
can someone help me out? :P
I only know + I don’t know - pls helpp!!
Answer:
x=31
Step-by-step explanation:
Since these angles are on a straight line, they are supplementary (combine to make 180 degrees. Therefore we can set up an equation to find x.
(5x-16)+(x+10)=180
Drop the parentheses.
5x-16+x+10=180
Combine like terms.
6x-6=180
Add 6 to both sides.
6x=186
Divide both sides by 6.
x=31
HTH :)
Pls help I asked 2 time so far and no one I need help i will mark brainliest
Answer:
x = 33
Step-by-step explanation:
This picture shows a supplementary angle which means:
angle 1 + angle 2 = 180°
In order to solve for x, you need to add both the angles
(2x + 1) + (4x - 19) = 180° start by simplifying this equation by adding like terms
6x - 18 = 180° you can solve this like a regular inequality now, add 18 to 180°
6x = 198 now divide 6 by 162
x = 33
To be able to do the problem 5(10 + 4) mentally, Zack does 50 + 20 instead of 5(14).
Zack is using which of the following properties?
1.) distributive
2.) inverse
3.) associative
4.) commutative
Answer:
1. Distributive
Step-by-step explanation:
This is because you multiply the number outside the parentheses into the numbers inside the parentheses.
Hope it helped.
Answer:
the answer is 1)
Step-by-step explanation:
Please help will give brainliest i need this its due wednesday and there are like 45-50 questions
Answer:
i think its a
Step-by-step explanation:
sorry if im wrong just stressd out. good luck.
Answer:
The anwser is a
Step-by-step explanation:
Because on the red point it 24
The image shows a right triangle in the coordinate plane. What is the measure of segment DF?
Answer:
10.8 units
Step-by-step explanation:
Answer:
10.8
Step-by-step explanation:
Its True
(PHOTO) PLEASE HELPPP I HAVE NO CLUE
Answer:
so what grades work
Step-by-step explanation:
someone help in the comments
srry i need pts
Broody spent $260 on 4 chairs. To find out how much he spent on each chair, he did the following work in long division. did he do the problem correctly why or why not
Answer:
i think it is C
Step-by-step explanation:
if not than sorry
Answer:
C. Yes, he worked the problem correctly
Step-by-step explanation:
260 / 4 = 65 and he did the work as he was supossed to
4 goes into 26 6 times and 4 goes into 20 5 times which = 65
So he got it right!
Find −3 1/5 ÷ 1 3/4. Write your answer as a mixed number in simplest form.
PLS HELPPPPPP I'M GOING TO FAIL MATH WHO EVER HELPS WITH THIS QUESTION I WILL GIVE A BRAINLIEST!!!!
Three students need to produce a prime factorization of 48. Donna states that the first factors in the tree should be 6 and 8. Larry states that the first factors in the tree should be 4 and 12. Trish states that the initial factors of 48 do not affect the prime factorization. Explain why Trish is correct.
Answer: Trish is correct because she states 48 and the number 48 does not affect the prime factorization
Step-by-step explanation:
Which of the following word pairs correctly completes the sentence below? The _______ energy from the _______ arrives in the form of visible and invisible light.
A. Sun's, Earth
B. Earth's, Sun
C. Moon's, Earth
D. stars', Moon
Answer:
it C
Step-by-step explanation:
Which of the following correctly simplifies the expression 2 to the power of 3 multiplied by 3 to the power of 0 whole over 5, the whole squared.? (5 points)
2 to the power of 3 multiplied by 1 whole over 5, the whole squared. = 2 to the power of 6 multiplied by 1 squared over 5 squared. = 64 over 25.
2 to the power of 3 multiplied by 1 whole over 5, the whole squared. = 2 to the power of 5 multiplied by 1 squared over 5 cubed. = 32 over 125.
2 to the power of 3 multiplied by 0 whole over 5, the whole squared. = 2 to the power of 6 multiplied by 0 over 5 squared. = 0
2 to the power of 3 multiplied by 0 whole over 5, the whole squared. = 2 to the power of 5 multiplied by 0 over 5 cubed. = 0
Answer:
2 to the power of 3 multiplied by 1 whole over 5, the whole squared. = 2 to the power of 6 multiplied by 1 squared over 5 squared. = 64 over 25.
Step-by-step explanation:
TRUST ME IT IS A
Answer:
2 to the power of 3 multiplied by 1 whole over 5, the whole squared. = 2 to the power of 6 multiplied by 1 squared over 5 squared. = 64 over 25