A box contains 21 green marbles. Green
marbles make up 15% of all the marbles
in the box. How many total marbles are in
the box?
8
HELP ASAP! PLZZ
Answers
Answer:
pts
Step-by-step explanation:
5 fre pts :))))
Related Questions
HELP! I CANT GET ANY WRONG
Answers
Yee sorry if it wrong
Anyone get this please help me
Answers
Answer:
AOB = -8x + 68
Step-by-step explanation:
AOC = 40°
BOC = 8x - 28
Angle Addition Theorem:
AOB + BOC = AOC
AOB + (8x - 28) = 40
AOB + (8x - 28) + 28 = 40 + 28
AOB + 8x - 8x = 68 - 8x
AOB = -8x + 68
AOB + BOC = AOC
(-8x + 68) + (8x - 28) = 40
-8x + 8x + 68 - 28 =40
0x + 40 = 40
40 = 40
caffeine takes a certain amount of time to leave your system if you drink 3 cups of coffee in the morning, the function that represents the amount of caffeine remaining in your body after drinking the coffee is given by (gt)=130(.8346) where is t time in hours.
Answers
Answer:
What's the question you're asking im very confused of what you're trying to ask
Step-by-step explanation:
6 to the 5 power times 6 to the negative 2 power= ?
Answers
Sarah jumps rope to keep in shape. She jumps an average of 20 times in 15 seconds. Which of these describes her jumping rate?
- 60 jumps per minute
- 60 minutes per jump
- 80 jumps per minute
- 80 minutes per jump
Answers
4•20=80
*80 jumps per minute*
Solve for x: 2 over 3 (x − 4) = 2x. (1 point)
AHHHHH I CANT GET THIS
A.) 2
B.) -2
C.) -8
D.) -4
Answers
Answer:
-2
Step-by-step explanation:
2/3 (x-4)=2x
or, 2x-8/3 =2x (multiply(x-4) by 2/3)
or, 2x-8 =3×2x
or, 2x-8 =6x
or, 2x-6x = 8
or, -4x = 8
or, x= 8/(-4)
or, x= -2
There are 18 roses and 48 tulips.
a.If you need to make bouquets that are all identical, what
is the greatest number of bouquets that can be made?
b.How many roses will be in each bouquet?
c.How many tulips will be in each bouquet?
Answers
Answer:
here's what I got
Step-by-step explanation:
3 roses and 8 tulips
Please answer this for me
Answers
Subtracting fractions with unlike denominators 9/3-6/10
Answers
Answer:
2 2/5
Step-by-step explanation:
Kailey wrote 8,912,000 in scientific notation as 89.12 times 10 Superscript 5. Which statement best describes Kailey’s work?
Kailey is correct: 89.12 times 10 Superscript 5 equals 8,912,000.
Kailey is not correct: the exponent of ten should be negative.
Kailey is correct: it is written as a decimal number multiplied by a power of ten.
Kailey is not correct: 89.12 times 10 Superscript 5 is not written in scientific notation.
Answers
Answer:
kailey is not correct 89.12 times 10 superscript 5 is not written in scientific notation
Step-by-step explanation:
8.912 times 10 superscript 5 is written is scientific notation
The true statement about Kailey's expression is (a) Kailey is not correct: 89.12 * 10 ^5 is not written in scientific notation.
How to determine the true statement?From the question, Kailey's expression can be represented as:
8,912,000 = 89.12 * 10^5 in scientific notation
To check if Kailey's expression is correct, we count the number of zeros in the number up to 8.9
The number of zero is 6.
So, the scientific notation of the number is
8,912,000 = 8.912 * 10^6
This means that Kailey's expression is not correct
Hence, the true statement is (d)
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What is the result of subtracting in the division problem shown below?
3 x squared minus 4x minus 2 StartLongDivisionSymbol 6 x cubed + x squared minus 10 x minus 1 EndLongDivisionSymbol. minus 6 x cubed minus 8 x squared minus 4 x to get a remainder of blank and a quotient of 2 x + 3.
Answers
The answer is 9x² - 6x - 1 after subtracting (6x³ + x² - 10x - 1) - (6x³ - 8x² - 4x) in the division problem.
What is polynomial?Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.
[tex]\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n[/tex]
The problem is shown in the picture, please refer to the attached picture.
From the division problem:
The subtraction of:
= (6x³ + x² - 10x - 1) - (6x³ - 8x² - 4x)
= 0 + 9x² - 6x - 1
= 9x² - 6x - 1
Thus, the answer is 9x² - 6x - 1 after subtracting (6x³ + x² - 10x - 1) - (6x³ - 8x² - 4x) in the division problem.
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Answer:
1. 9x² - 6x
2.6x + 5
Step-by-step explanation:
Label each scenario as proportional (P) or non-proportional (NP). If a scenario is proportional, calculate the k-value.
Response area 3 pounds of grapes cost $6.57 Response area
Response area Pizza Palace charges $8 per pizza plus a $3 delivery fee. Response area
Response area Jay has 2 pencils and buys a new one each week. Response area
Response area It takes 1.5 ounce of glue to make 12 ounces of slime.
Answers
Answer:
Proportional kvalue-2.19
Non-proportional
Non-propotional
Proportional kvalue-8
Step-by-step explanation:
Water flows through a pipe at a rate of 5 quarts every 2 days. Express this rate of flow in cups per year.
Answers
The rate of flow in cups per year is 3645 cups per year.
How to determine the rate of flow in cups per yearTo convert the rate of flow from quarts per day to cups per year, we first need to convert quarts to cups and days to years.
1 quart is equal to 4 cups,
So 5 quarts is equal to 5 x 4 = 20 cups.
1 year is equal to 365 days, so
2 days is equal to 2/365 = 1/182.5 years.
So the rate of flow in cups per year is 20 cups / (1/182.5 years) = 3645 cups per year.
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I'm confused on this problem 2/3x-1=5
Answers
Answer:
x=9
Step-by-step explanation:
2/3x-1=5
Add 1 to each side
2/3x-1+1= 5+1
2/3x = 6
Multiply each side by 3/2
2/3x*3/2 = 6*3/2
x = 9
Answer:
x=9
Step-by-step explanation:
You add one to both sides, multiply 3 to both sides (to further isolate x), and then divide by 2 on both sides. When you substitute back in, both sides of the equation are equal to each other.
Rebecca writes 1/5 of a page in 1/14 minute. How many pages can she write in one minute? (fraction) pages per minute.
Answers
Answer:
She can write 2 pages and 4/5 extra.
Step-by-step explanation:
What you're going to do is multiply 14 by 1/5.
14/1 x 1/5 = 14/5
14/5 = 2 4/5
A calculator screen shows a number in scientific notation as 4.18E‒8. Write this number in standard form.
Answers
Answer:
.0000000418
Step-by-step explanation:
So you will start from the decimal and move 8 places to the left.
E-8 is the same as 10^-8 so you will move to the left
If it was E8 you would move to the right 8 places.
solve all 4 please.
Answers
2.) -12
3.) 308
4.) 4
Find the root of 5x-20=0
Answers
Answer:
x=4
Step-by-step explanation:
5x-20=0
+20 +20
5x=20
5 5
x=4
Add 20 to both sides cancelling out the left side.
Than you divide 5 leaving the x on one side and 20 over 5 which is 4
Which of the following expressions cannot be simplified?
A) √24
B) √32
C) √27
D) √38
Answers
Answer:
C
Step-by-step explanation:
Answer:
The answer is c
Step-by-step explanation:
What is the slope of the line shown.
Answers
Answer:
The answer is negative one half. If I am wrong let me know because the picture is a little hard to read.
Step-by-step explanation: To find the slope, you look at the Y axis and see where the line crosses perfectly(or goes through) the Y axis first. Then, you look at the x axis and see where the line crosses perfectly on the x axis. For example, the line crosses the Y axis at negative, and the line crosses the X axis at positive 2. The vertical line is the y axis and the horizontal line is the x axis.
Find f(-3) if f(x)=X+ 2x - 1
Answers
Answer:
i 100% do not know
Step-by-step explanation:
Explanation: We are given f(x)=X+2x-1. You would replace every x variable with -3. You’re new equation would look like this: f(-3)=-3+2(-3)-1. Then solve: f(-3)=-3+2(-3)-1
f(-3)= 3-6-1
f(-3)= -10
–5 - 3 – (–2) + 7 – 3 pls help me
Answers
Answer:
-2
Step-by-step explanation:
-5 - 3 -(-2) + 7 - 3
-5 - 3 + 2 + 7 - 3
-8 + 9 - 3
1 - 3
-2
4
Jenna is planning to buy a new phone. She earned $168 one week and $325 the next
week. The phone that Jenna plans to buy is $196.50 after taxes. If Jenna uses the
money she earned within those two weeks, how much would she have after
purchasing the phone?
A $296.50
B$493
C) $689.50
D) $323.50
Answers
Answer:
a. she would still have $296.50
If 3a-4=26 what is the value of 2/5a?
Answers
Which of the following numbers are less than -0.625
choose all that apply
A: - 8/5
B: -5/8
C:-0.5
Answers
Answer:
C
Step-by-step explanation:
C is the answer becuase it is a negative number less than -0.625
how do you get the slope
Answers
Answer:
See below
Step-by-step explanation:
The way to find the slope is to find how many blocks/number it went up and to the side. The number of blocks it went up on the y-axis, in this case, is 3 and it went along the x-axis once. In order to actually find the slope, you need to put the y over the x. So, 3/1 is equal to three, so the slope of this line is 3
Answer:
y2-y1/x2-x1
Step-by-step explanation:
For instance, say you have points (3,2) and (4,6) on a line.
x1 = 3, y1 = 2, x2 = 4, y2 = 6
6 - 2/4 - 3
4/1
slope = 1
Evaluate 3ab for a=2 and b=3
Answers
Answer:
18
Step-by-step explanation:
For this problem, we will simply plug in the values of a and b into the respective variables in the expression 3ab to "evaluate" the expression.
a = 2; b = 3
3ab
Note, that when variables like a and b are smashed with a constant, the use of multiplication is in play.
3ab = 3 * a * b
With this in mind, let's plug in the values of a and b into the expression.
3ab
= 3 (2) (3)
= 3 (6)
= 18
Hence, 3ab evaluated when a=2 and b=3 is 18.
Cheers.
Help!!! What is Find the product of –35 • (–1.5)???
Answers
Answer:
52.5
Step-by-step explanation:
Two negatives make a positive so the answer is 52.5
Admission to the fair is $8.50 and each ride costs $1.25. He has $40 to spend at the fair. write an inequality to represent the situation. Solve the inequality to determine the maximum number of rides Jaylen can enjoy.
PLSSSSS HELPPP IM TIMED AND I WILL MARK BRAINLIEST AND HELP OUT WITH UR QUESTIONS!!!
Answers
Answer:
8.50 divided by 1.25 then when u get the answer subtract 40
Answer:
25
Step-by-step explanation:
so instantly 40-8.50=31.5
The question is very vague because it doesn't state the number of rides he wants to go on in minimum.
if you do 1.25x25=31.25
According to that, he will leave with a change of 0.25 and obv u cannot go on half a ride...
So in about 2 mins i guess it is 25???
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In a cinema theatre, why do we normally not hear echoes even though the sounds are loud?
Answers
Answer:
An echo is formed as a result of reflection of the original sound which returns to the listener. You might have experienced Echo in an EMPTY ROOM but no echo is produced after the room is occupied. To avoid echo from being produced the echo has to be absorbed. Echo in a cinema theatre is absorbed by the WALLS of the theatre.
They are not plain. The walls are corrugated or shaped to form tiny holes or empty spaces to ABSORB the ECHO. Modern Theatre's have ABSORBENT materials sticked to the walls of the theatre.
An echo is an unpleasant sound heard after a produced sound got reflected from a plain surface. It is majorly eliminated in a cinema theater by:
the use of sound absorbing materials in the construction of the wallsabsorption of sound waves by the body and cloths of viewers
Echo is a sound produced due to the reflection of a produced sound by a plain surface. Its continuous occurrence leads to reverberation. It causes distortion of produced sound which makes it unpleasant to hearing. Thus the need for a mechanism which would reduce it to a bearable level.
To reduce or eliminate echo, the walls of the cinema theater had been constructed with sound absorbing materials which may include special pads. These would have been incorporated into the walls, and would absorb most unwanted sounds produced in the theater.
Also the cloths worn by viewers absorbs some of the unwanted sound, thus assisting to indirectly reduce echo.
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