Answer:
The answer is option B: a < -21 1/3
Step-by-step explanation:
You can use a calculator to divide -16 by 3/4. Since it is an inequality, multiplication or division causes you to flip the sign.
Since starting a new recycling plan, Hannah's office recycles 2 kilograms of paper each
week. How many weeks will it take Hannah's office to recycle a total of 8 kilograms of
paper?
Answer:
4
Step-by-step explanation:
Known:
Every week Hannah's office recyles 2 kilograms of paper
1 week = 2 kg of paper
To find a rate at which the office recyles paper divide the unit of measurement (kg) by a unit of time (weeks)
So:
2 kg/ 1 week = 2 kg of paper recycled per week
We want to know how many weeks it will take to recycle 8 kg.
Think of it this way.
if you divide kg by kg/week the kg cancel out and you get the unit week.
So divided 8 kg by the rate we discovered (2 kg/week) and you shall get the answer 4 weeks.
An object is moving at a speed of 9 inches per minute. Express this speed in yards per month.
Answer:
Speed is the rate of change in position of an object, regardless of direction of travel. Walk forward or backward at 2 meters per second, and your speed is just that: 2 m/s. Velocity is speed in the context of direction. Say you were walking backward again; your velocity is negative 2 m/s, although your speed is still positive.
Step-by-step explanation:
The given speed in yards per month will be 10,800 yd/mo.
What is speed?Speed is the rate of change in position of an object, regardless of direction of travel.
Walk forward or backward at 2 meters per second, then speed is just that: 2 m/s.
Velocity is speed in the context of direction.
An object is moving at a speed of 9 inches per minute.
9 in/ min = (9 in/ min) x (1 yd / 36 in) x ( 60 min/ 1 h) x (24h / 1 d) x (30 d/ 1 mo )
9 in/ min = 10,800 yd/mo
Therefore, the given speed in yards per month will be 10,800 yd/mo.
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2. If r=7 is a solution to -6r+18=k(x-15), then which of the following must be the value of K?
(1)-8
(3)3
(2) -4
(4) 11
Answer: (1)-8
Step-by-step explanation: −6r+18=k(x−15)
Step 1: Flip the equation.
kx−15k=−6r+18
Step 2: Factor out variable k.
k(x−15)=−6r+18
Step 3: Divide both sides by x-15.
k(x−15)/x-15 =
−6r+18/x-15
k= −6r+18/x-15= -8
WILL MARK BRAINLIEST!!! Can someone help me wit des two questions?
-----------------------------------------------------------------------------------------------------------
Which of the following choices correctly identifies the error in the solving process shown below?
4 - 2x = -2
+4 +4
-------------------
2x = 2
----- -----
2 2
x=6
A. The student should have simplified first, combining the terms on the left
B. The student should have subtracted the 4 first, instead of adding, because it is positive originally.
C. The student should have added better, -2 plus 4 is 6
D. The student should have divided by -2 first.
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Choose the correct first step to solve this equation: 4x - 23 = -2(x + 17)
a.) Subtract 17
b.) Divide by 4
c.) Multiply both sides of the equation by -2
d.) Distribute the -2
Answer:
The answer to the first question is B.) The student should have subtracted the 4 first, instead of adding, because it is positive originally. And the answer to the second one is D.) Distribute the -2.
Step-by-step explanation:
Hope this helps! :)
I will give brainliest to whoever answers this!!
HELP FAST!!! PLZ!! I BEG YOU!!! I'LL GIVE BRAINLYEST!!! 10 POINTS!!!
The frequency table shows the results of drawing 20 cards from the bag of 100. There are an equal number of cards of each color in the bag. Which color has the same frequency as the distribution of colors in the bag?
(I caint take a screen shot, so im going to try and recreate it)
COLOR FREQUENCY
Blue 4
Red 3
White 5
Yellow 8
A. white
B. red
C. yellow
D. blue
Answer:
white
Step-by-step explanation:
Which equation represents the relationship between the
number of pets Scott watches and his fees?
Write an equation perpendicular to x - 4y = 20 that passes through the point (4, -3)
Answer:
y = - 4x + 13
Step-by-step explanation:
In order to do this problem you would need a whole new equation, but you will use what is given to you:
instead of going with:
x - 4y = 20
Turn it into y = mx + b form, also known as slope-intercept form:
x - 4y = 20
-x = -x
_________
- 4y = 20 - x
Then divide both sides by - 4:
[tex]\frac{-4y}{-4} = \frac{-x + 20}{-4}[/tex]
You will then get:
y = [tex]\frac{1}{4}x - 5[/tex]
From this equation we will only need the slope!
m || = [tex]\frac{1}{4}[/tex]
(This slope is for parallel)
but if you want perpendicular to the slope, then we need the negative reciprocal!
Negative reciprocal is a flipped version of the value that is negative, for example:
2 = [tex]-\frac{1}{2}[/tex]
Because [tex]\frac{2}{1}[/tex] = 2
Now we will find the perpendicular slope which is:
m ⊥ = - 4
Now substitute this slope into slope intercept form:
y = mx + b
(-3) = -4(4) + b
(Take away parentheses)
-3 = -16 + b
(Move - 3 to the other side, by making it positive, but what you do to one side, you do to the other)
= -13 + 6
(Move - 13 to the other side, by make - 13 into +13)
+13 = +13
________
13 = b
(This is you b, also known as you intercept)
Your answer is:
y = -4x + 13
Explain the difference between parallel and perpendicular lines in terms of their slopes. What form of equation of a line is easiest to determine slope?
Answer:
Parallel lines have the same slope, while perpendicular lines have completely opposite slopes. So a line has a slope of 2, a parallel line would have a slope of 2, and a perpendicular line would have a slope of -1/2. The easiest form to identify the slope is standard form because it shows the slope within the equation with out having to solve the equation or convert it into another form.
Jin bought 4 markers for $7. How many markers can he buy for $21? (label your answer for full credit)
Answer:
The answer is 12 markers. 4 markers for $7. You multiply 7 x 3and you end up with 21
Step-by-step explanation:
A pair of jeans regularly priced for $50 have been marked down by 10%. What is the new sale price?
HELP ASAP!!! PLEASE
Answer:
5
Step-by-step explanation:
Answer:
$46
Step-by-step explanation:
Graph this line using the slope and y-intercept:
y = 8x - 6
Click to select points on the graph.
8
6
4
No
-6
-4
-2
-10
-8
0
co
4
2
6
10
-2
-4
-6
CO
-104
The graph of the equation y = 8x - 6 is a straight line.
What is slope intercept form?The slope intercept formula y = mx + b is used when you know the slope of the line to be examined and the point given is also the y intercept
(0, b).
Given is an equation, y = 8x - 6
Finding the coordinates,
Put x = 0, y = -6
(0, -6)
Put y = 0
8x = 6
x = 0.75
(0.75, 0)
Plotting the graph,
Hence, we will get a straight line of the graph.
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what is the slope of (-8, -3) (-24, 1)
Answer:
(-16 , -4)
Step-by-step explanation:
you use rise over run
the rise is your y
the run is the x
[tex]\frac{y2-y1}{x2-x1}[/tex]⇒[tex]\frac{-3-1}{-24-(-8)}[/tex] =
[tex]\frac{-4}{-16}[/tex] or (-16, -4)
I need help on how to fill in a bubble grid. my answer is x=9, but I'm not sure how to record my answer on there. Please help.
pls answer this is due today its science. I give brainliest
Maybee the third one
Step-by-step explanation:
Reflect the point (-7, -9) across the x-axis: Then
Reflect the point (-7, -9) across the y-axis:
Step-by-step explanation:
Reflecting across the x axis will result in a sign change for. the y component, therefore (-7,-9) becomes (-7,9)
Reflecting across the y axis will result in a sign change for the x component, therefore (-7,-9) becomes (7,-9)
can yall pls help me with those 3
Answer:
I got d b and c I am not sure pls don't use my answers if you don't want to and don't mark brainiest again I just wanted to try to help and I couldn't fully understand if I'm wrong I apologize and god bless you
"The product of a number and five is subtracted from 27." Which expression
represents this scenario?
Answer:
27 - 5n
Step-by-step explanation:
n times 5 (5n) - 27
Using the table below, determine the unit rate in points per game. *
games
points
3
42
13
182
16
224
Your answer
Help please!!! This is important!
Answer:
u didnt put any context
Step-by-step explanation:
I need help its on my major grade tets
Answer:
h?
Step-by-step explanation:
Answer:
it is G.(0,-2)
Step-by-step explanation:
Where the line crosses the y-qxis is where x=0 and y=-2
Given m
11 n, find the value of z.
+
(10X-14)
>
(7x-8)
Answer:
Solve
Let's solve your inequality step-by-step.
10x−14>7x−8
Step 1: Subtract 7x from both sides.
10x−14−7x>7x−8−7x
3x−14>−8
Step 2: Add 14 to both sides.
3x−14+14>−8+14
3x>6
Step 3: Divide both sides by 3
3x/3>6/3
x>2
Step-by-step explanation:
Do your answers correctly or figure it out on paper
7.) x-3>4 please help
Answer:
x>7
Step-by-step explanation:
x-3>4
Add 3 to both sides
x>7
Hope it helped!
Answer:
x>7
Step-by-step explanation:
To solve the inequality you need to isolate the variable. To do so add 3 to both sides of the equation, x-3+3>4+3, which simplifies to x>7. This means any number greater than but not equivalent to 7 is a solution. So 8 or 100 would work but 7, 2, or -2 would not.
Sarah wants to buy new pillows for her
room. Which store offers the best buy
on pillows?
Sale Price
Store
3 pillows for $40
A
4 pillows for $50
B
C
2 pillows for $19
D
1 pillow for $11
C. Store C
D. Store D
A. Store A
3 divided by 40 = 0.075 per pillow for A
4 divided by 50 = 0.08 per pillow for b
2 divided by 19 = 0.10 per pillow for c
and obviosly d is 11
your answer is A.
WILL GIVE BRAINLIEST
Step-by-step explanation: First, we create a table using the equation provided: "y = -2/3x + 1". If x is 0, then y = 1. If x = 3, y = -1. Thus, we plot the points (0, 1) and (3, -1). Then, we draw a line through them.
Please help me with this problem, 35 points!
The four small circles are identical. The total area of the small circles is 16 pi square inches. What is area of the larger circle? Write your answer in terms of pi .
Answer:
64[tex]\pi[/tex] in²
Step-by-step explanation:
I did not ever do a problem like this, however this is the beauty of math, you can easily reverse engineer it.
Remember,
A = [tex]\pi r^2[/tex]
And if we have 4 circles that means the area of one circle is 1/4th the total
So,
[tex]A = \frac{\pi r^2}{4}[/tex]
Assuming that 16 is the radius squared times 4 lets ignore that squared for now because when going backwards we would get rid of the squared last as that was the first step.
[tex]A = \frac{16\pi}{4} = \frac{4\pi}{1}= 4\pi[/tex]
Now lets get it back to [tex]r^2[/tex] by square rooting the 4
[tex]A = \sqrt{4}\pi = 2\pi[/tex]
The radius of one small circle is 2. Therefore; the diameter would be 4 for each. This in mind we know that two small circles diameters make up the radius of the larger circle we will multiply it by two again.
This gives us a final radius of the bigger circle of 8
Therefore, the area of the bigger circle is 8²[tex]\pi[/tex] which simplifies to 64[tex]\pi[/tex]
And a final answer of
64[tex]\pi[/tex] in²
Hope this helps :)
The area of the larger circle is 64π in²
What is a circle?A circle is simply a round shape that has no corners or line segments. It is a closed curve shape in geometry. The points of circle are at a fixed distance from the center.
Given that, there are 4 identical circles inside a big circle, the total area of the small circles is 16π in²
We know that,
Area = π × radius²
16π = 4π × radius²
Therefore, the radius of each circle = 2 in
Now, according to the arrangement we can say that the adding the diameter of two small circles will give the radius of the big circle,
Therefore, the radius of the big circle = 4 + 4 = 8 in
Therefore, the area of the big circle = π × 8² = 64π
Hence, the area of the larger circle is 64π in²
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long division with 2,000 divided by 3.2
Answer:
625
Step-by-step explanation:
with long division, you just need to remember these five steps, divide, multiply, subtract, bring it down, and repeat.
hope this helps :3
if it did pls mark brainliest
The number 2000 divided by 3.2, then the quotient is 625.
To perform long division with 2,000 divided by 3.2, follow these steps:
Step 1: Write down the division problem.
2,000 ÷ 3.2
Step 2: Convert the divisor to a whole number.
Since the divisor is a decimal, multiply both the dividend and divisor by a power of 10 to eliminate the decimal. In this case, multiply both numbers by 10 to get rid of the decimal point:
2,000 × 10 = 20,000
and
3.2 × 10 = 32.
Step 3: Divide the first digit of the dividend by the divisor.
In this case, the first digit of 20,000 is 2, and when divided by 32, the quotient is 0. Therefore, write down 0 as the first digit of the quotient.
Step 4: Multiply the quotient digit by the divisor and subtract from the dividend.
Multiply 0 by 32:
0 × 32 = 0
Subtract the result from the dividend:
20,000 - 0 = 20,000
Step 5: Bring down the next digit of the dividend.
Since we have no more digits in the dividend, stop here.
Step 6: Write down the final result.
The quotient is the result of the division:
2,000 ÷ 3.2 = 625
Therefore, when dividing 2,000 by 3.2 using long division, the quotient is 625.
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PLEASE PLEASE PLEASE HELP WITH THE ONES CIRCLED IN BLACK I WILL GIVE EXTRA POINTS AND BRAINALIST TO THE FIRST PERSON TO ANSWER THANK YOUUUUU
Answer:
[tex]2. \: x > 0 \\ 3. \: - 1 \leqslant x < 3 \\ 4. \: 0 > x > 2[/tex]
Tina's Jack Russell weighed 19.5 pounds. This week, her dog weighed 21.8 pounds. Find the percent of change in the weight of her dog?
Answer:
90%
Step-by-step explanation:
19.5 divided by 21.8 = 0.89449541 = 0.89% or 0.9%
Use the diagram at the right to determine x and y. AB and CD are
straight lines.
Name a pair of vertical angles:
Find the measure of
Answer:
x=30
y=52
verticle angles: AOC and DOB
Step-by-step explanation: