8x-2*4 simplified area of the rectangle
Answer:
multiply both expressions
(8x - 2)(4)
32x - 8
simplify
32x = 8 4 ( 2 2 2 2 2 2)
-8 = 8 -1
8(4x - 1)
hope this helps
Step-by-step explanation:
The picture is sideways. Please help, much appreciated!
Answer:
[tex]0< b\leq 14.5[/tex]
Step-by-step explanation:
Let's set up our equation. We know that rectangles have two pairs of equal sides. We are also given that one pair of those sides is 1 unit longer than the other pair. Finally, we are told that the perimeter is at most 60 meters. 'At most' tells me to set up an inequality.
I'm going to set up two equations to solve this problem. First, let [tex]a[/tex] be the longer side and [tex]b[/tex] be the shorter side.
[tex]2a+2b\leq 60[/tex]
Next, because the sides are consecutive integers and [tex]b[/tex] is shorter, we can say that [tex]a-b=1[/tex].
We now have a system of equations. I will solve using substitution.
[tex]a-b=1\\a=b+1[/tex]
Substitute [tex]a[/tex] into the first equation.
[tex]2(b+1)+2b\leq 60[/tex]
Solve algebraically.
[tex]2b+2+2b\leq 60\\4b+2\leq 60\\4b\leq 58\\b\leq 14.5[/tex]
So, [tex]b[/tex] could be any integer between 0 (since distance cannot be negative) and 14.5, also written as [tex]0<b\leq 14.5[/tex].
I hope this helped!
A 3-column table with 4 rows. Column 1 is labeled Inequality with entries 8 greater-than 2, negative 10 less-than negative 2, 15 greater-than negative 5, negative 7 less-than 4. Column 2 is labeled Multiply each side by: with entries negative 2, negative 4, negative 3, negative 5. Column 3 is labeled New Inequality with entries A, B, C, D. The table gives an inequality and a number to multiply both sides of the inequality by. Identify the new, true inequality. A: B: C: D: Multiplying both sides of an inequality by a negative number the inequality symbol.
Answer:
9898
Step-by-step explanation:
Simplify the following expression -24 - 3.r) + (5x - 2)
Answer:
-3 (r+8)
Step-by-step explanation:
-3 (r) -24
-3 (r) - 3 (8)
-3 (r+8)
Please help on at least 2 of these!! I'll give brainliest!!
A family of 10 that all leave the house at the same time each morning has two bathrooms. They must share for everyone to be ready. Time is allotted to each family based on age. Is this apportionment or not apportionment?
Answer:
Not apportionment
Step-by-step explanation:
Apportionment can be described as a way of sharing out or dividing out in the best fair method.
If a family of 10 leave the house at the same time and have to share just two bathrooms, the time allocation should not be based on age rather should be based on how early each person wakes up in the morning.
One month Sam rented 3 movies and 8 video games for a total of $55 . The next month he rented 5 movies and 2 video games for a total of $18 . Find the rental cost for each movie and each video game.
Answer:
Step-by-step explanation:
You are trying to find the values of two quantities, so you will need to set up a system of two equations in two variables. We'll call M the price of a movie and V the price of a video game.
The first month: 3 movies, 8 video games, $55. Let's translate this into algebra:
3M + 8V = 55
The second month: 5 movies, 2 video games, $18. Translated:
5M + 2V = 18
Solve that system of equations
WILL MARK BRAINLIEST
Which of the following are independent events?
randomly choosing a marble from a bag, replacing it, and choosing again reaching into your pocket and pulling out two dimes out of 20 coins
drawing a number from a hat, not replacing it, and then drawing a second number
rolling a number cube, rolling again, and trying to match the first roll
Answer:
randomly choosing a marble from a bag, replacing it, and choosing again
rolling a number cube, rolling again, and trying to match the first roll
Explanation:
In an independent event, getting a certain outcome once does not change the probability of getting the same outcome again.
The second option (about the coins) is NOT independent because if you pull out a dime on your first try, there are fewer dimes in your pocket and you are less likely to pull out a dime the second try. The third option (about drawing a number) is also NOT independent for the same reason: you don't put the number back into the hat after drawing it out, so there's fewer numbers the second time and the probability is different.
SECOND TIME POSTING I RLLY NEED HELP GUYS URGENNTTTT PLS PLS PLS!
Type the missing number in this sequence:
3, 18, ____, 648, 3,888, 23,328
Answer:
108
Step-by-step explanation:
18*6 = 108
2x≥12
I can't figure this out
Answer:
[tex]x \geq 6[/tex]
Step-by-step explanation:
You can start by dividing both sides by 2, getting [tex]x \geq 6[/tex].
Answer:
:(
Step-by-step explanation:
f(x) = 5x2 + 4x – 6
g(x) = 3x2 – 9
Answer:
f=5x2+4x−6
g=3x2−9
The floor of a room with dimensions 16 by 12 is covered with square tiles, each of length 0.32. How many of such tiles will be needed to cover one third of the room?
Answer:
625 tiles
Step-by-step explanation:
According to the scenario, computation of the given data are as follows,
Total room floor area = 16 × 12 = 192
So, area of one third room = 192 × (1 ÷ 3)
Area of one third room = 64
Length of each tiles = 0.32
As it is a square tile, width = length, = 0.32
o, total area of each tile = 0.32 × 0.32 = 0.1024
So, number of tiles to cover 64 area of room = 64 ÷ 0.1024 = 625 tiles.
Hence, 625 tiles needed to cover one third of room.
Fifteen more than twice a number is -23.
Answer:
-19
Step-by-step explanation:
2x+15=-23
2x=-23-15
2x=-38
x=-19
3a - 10b
5a - 2b
3a + b
С
D
Is BCD a straight line?
Show working to support your answer.
B
Answer:
Step-by-step explanation:
Step-by-step explanation / answer:
BC=2a-3b
CD=6a-9b
B,C and D lie on a straight line because 3BC=CD (parallel) and they share common point C
Pls Help I hate math
Answer:
b
Step-by-step explanation:
to find the volume of the figure you have to multiply the with times the length times the height
2x12x9=216
A school club purchases sandwiches and pretzels for a lunch. Each sandwich costs $4.25 and each bag of pretzels costs $0.75. A total of 48 items (sandwiches and pretzels) were purchased for a total cost of $175. If s = the number of sandwiches and p = the number of pretzels, which system represents this situation?
Answer:
A is the correct answer
Step-by-step explanation:
Edgar is playing a game where he draws three cards and finds the sum of
the values shown. If the sum is greater than 10, Edgar wins. Determine if
the sum of his cards shown below is greater or less than 10?
Answer:
The answer is greater than 10.
Step-by-step explanation:
Exit Ticket
Priya says, "There are exactly four points that
are 3 units away from (-5,0)." Lin says, “I think
there are a whole bunch of points that are 3
units away from (-5,0)."
Do you agree with either of them? Explain
your reasoning.
Answer:
No
Step-by-step explanation:
There are 4 points between the two units
Determine a series of transformations that would map Figure N onto Figure O
Answer:
Reflect over x-axis. Then translate up 5 units.
3. Rectangle J is 6 feet wide and 9 feet long.
Rectangle K is 9 feet wide and 12 feet long.
Are the rectangles similar? Explain.
Answer:
No it's not!
Step-by-step explanation:
because the length (long) of J and K are totally different whereas the breadth(width) of J and K is also different which does make similar in sense
An equilateral triangle has an altitude of 21 inches. What is the side
length of the triangle?
14 2
7 2
7 3
14 3
Answer:
7[tex]\sqrt{3}[/tex]
Step-by-step explanation:
the altitude creates two congruent 30-60-90° triangles
the ratio of the sides in a 30-60-90°, respectively, are 1 : [tex]\sqrt{3}[/tex] : 2
therefore we can set up a proportion to find the side length:
let 'x' = side length of equilateral Δ
[tex]\sqrt{3}[/tex] / 1 = 21 / x
cross-multiply:
[tex]\sqrt{3}[/tex]x = 21
x = 21 / [tex]\sqrt{3}[/tex]
rationalize the denominator by multiplying numerator and denominator by [tex]\sqrt{3}[/tex]
21[tex]\sqrt{3}[/tex] / [tex]\sqrt{3}[/tex]·[tex]\sqrt{3}[/tex] = 21[tex]\sqrt{3}[/tex] / 3 or 7[tex]\sqrt{3}[/tex]
please help me 4t−t+2
Answer:
The answer is 3t + 2
Step-by-step explanation:
Subtract t from 4t.
hoped this helped!
brainly, please?
Andrew is starting his own snow plowing business. Andrew has calculated that he needs to earn $500 per week to support his family. If he knows he will only be able to work 50 hours per week, what is the minimum amount of dollars per hour that he will need to charge his customers?
Answer:Ten dollars per hour
Step-by-step explanation:
50 hour =500 dollars
1 hour = ?
Using the criss cross method we multiply one hour by five hundred dollars and divide by fifty dollars.
?=(1 hour×500 dollars)/50 hour
?= 500 dollars/50
?=10 dollars per hour
Answer:
$10
Step-by-step explanation:
$500/50= 10
He needs to earn $10 an hour x the 50 hours = $500
Find the area of the shape below?
Answer:
8,910
Step-by-step explanation:
i just multiplied all the sides
and i got 8,910
Answer:
105 cm²
Step-by-step explanation:
The shape is composed of a rectangle and a triangle on the right side
area of rectangle = 15 × 6 = 90 cm²
The triangle has dimensions , base = (15 - 9) = 6 cm and height = (11 - 6) = 5 cm
area of triangle = [tex]\frac{1}{2}[/tex] × 6 × 5 = 3 × 5 = 15 cm²
Total area = 90 + 15 = 105 cm²
I need help with algebra, Can someone help me pls?
Y=2x-4
X+2y=10
Answer:
([tex]\frac{18}{5}[/tex], [tex]\frac{16}{5}[/tex] )
Step-by-step explanation:
Given the 2 equations
y = 2x - 4 → (1)
x + 2y = 10 → (2)
Substitute y = 2x - 4 into (2)
x + 2(2x - 4) = 10 ← distribute and simplify left side
x + 4x - 8 = 10
5x - 8 = 10 ( add 8 to both sides )
5x = 18 ( divide both sides by 5 )
x = [tex]\frac{18}{5}[/tex]
Substitute this value into (1) for corresponding value of y
y = 2([tex]\frac{18}{5}[/tex] ) - 4 = [tex]\frac{36}{5}[/tex] - [tex]\frac{20}{5}[/tex] = [tex]\frac{16}{5}[/tex]
solution is ([tex]\frac{18}{5}[/tex], [tex]\frac{16}{5}[/tex] )
Mr. Martin gave a test to his students. He graphed how many hours the students spent studying and how they scored on the test.
What is the equation of the line of best fit above?
Answer:
a students test score is likely to increase about 20 pointsfor each hour spent studying
Step-by-step explanation:
I hope this helps have a great day
Amaka buys 4 rulers and a pencil and these cost the same as 2 rulers and 4 pencils. If a pencil cost #8, how much does a ruler cost?
Answer: ruler cost $12
Step-by-step explanation:
step 1
Let cost of ruler be represented as r
and cost of pencil be represented as p
we were given that
4 rulers and a pencil and these cost the same as 2 rulers and 4 pencils which is expressed as
4r + p = 2r+ 4p
and cost of pencil= $8
therefore
sTEP 2--- Solving
4r+ 8 = 2r+ 4 x8
4r+ 8 = 2r+ 32
4r - 2r= 32-8
2r= 24
r= 24/2 = r= $12
What is 1 7/8 of 56? I need this fast PLSSSS
Answer:
105
Step-by-step explanation:
if you cross multiply 1 [tex]\frac{7}{8}[/tex] and [tex]\frac{x}{56}[/tex] you get [tex]\frac{840}{8}[/tex] which is 105
2x + 12 = 2(x+8)-4
need answer asap pls
Answer:
there are inifnite solutions
Step-by-step explanation:
Answer:X=-8
Explanation:
helpppppppp i'm literally starting to think i need a tutor
Answer:
x = 55
Step-by-step explanation:
Here, we want to get the value of x
From the diagram , we can see that we have a right- triangle
and thus,
x + 35 = 90
x = 90-35
x = 55