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Related Questions
evaluate 13+ab,when a= 2.5 and b=3.
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+
a
b
=
a
b
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13
13
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a
b
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a
b
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13
a
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2.5
=
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2.5
a
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2.5
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2.5
b
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3
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3
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3
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3
Answer= 20.5
The trip from Carville to Planesborough takes 4 1/2 hours when traveling at a constant speed of 70 miles per hour. How long, in hours, does the trip take when traveling at a constant speed of 60 miles per hour?
Answers
Answer:
5h 15 min
Step-by-step explanation:
70 mph * 4,5 = 315 miles
315 / 60 = 5,25h
5,25h = 5 1/4h = 5h 15 min
Answer:
6.8
Step-by-step explanation:
i hope tis helps
CANUHELPMEPLAESE PLZ
Answers
Answer:
The answer is 8$ less
Step-by-step explanation:
find 15% of 40 = 6 and 35% of 40 = 14
Subtract 6 from 40 and 14 from 40
get 34 and 26
subtract 26 from 34
taadaa
PLS ANSWER ASAP MEANING RIGHT NOW ;-; i'm losing brain cells
Suppose Enrique has two building blocks. The area of one face of one of the blocks is 4 square centimeters and the area of the face of the other block is 100 square centimeters. What is the scale factor from the smaller block to the larger block?
Answers
Answer:
I think the larger block has a scale 25 times bigger than the smaller block since 100 divided by 4 equals 25
Please tell me if I'm wrong
I hope this helps
:D
Answer:
The Scale factor is 5.
Step-by-step explanation:
Because the area has cm^2 to find the scale factor you find the number it takes to get from one area to the next and take the square root.
4X = 100
X = 100/4
X = 25 (Take the sqrt because of area)
X = sqrt(25)
X = 5
The Scale factor is 5.
Done the first two but i dont know how to do the mean of it
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To get the mean you have to add up the total number of peas in a pod, then divide the amount you added up by how many pods there are. :)
To find mean:
1) Add up all data values to get the sum
2) Count the number of values in your data set
3) Divide the sum by the count
First we have to find all the data values. We do this by finding all of the peas, not just the information numbers of peas in a pod.
4 x 2 = 8
5 x 10 = 50
6 x 18 = 108
7 x 14 = 98
8 x 6 = 48
8 + 50 + 108 + 98 + 48 = 312 total number of peas
2 + 10 + 18 + 14 + 6 = 50
312 / 50 = 6.24 peas per pod
So in our example the mean number of peas in a pod is 6.24.
I hope this helps! :)
if you have a bacteria cell that you touch at 9:00 am (so now you have one cell on you) and it multiplies every 20 mins how much will i have on me at 4:00
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It doubles 3 times an hour
It doubles 21 times total starting with 1
At 4:00 you will have 1,048,576 bacteria cells.
Well, 9:00 AM to 4:00 PM would be 7 hours. 7 hours into minutes would be 420. 420 divided by 20 is 21. This means it multiplies 21 times from 9:00 to 4:00. Since it multiplies by 2, than you need to skip count with the pattern multiply by 2 and stop once you have 21 numbers.
1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576. That would be 21 numbers.
The answer would be 1048576.
I think this is correct. :/
A boat went downstream and traveled a distance in 3 hours. the return took 3 hours and 40 min. find the speed of the water current of the speed of the boat in still water is 18
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Answer:
Step-by-step explanation
:
a stack of 500 pieces of paper is 1.875 inches tall derion guesses that each piece of paper is 0.015 inches thick. explain how you know that derions answer is not correct.
compute the thickness of each piece of paper. show your reasoning
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Answer:
Derions answer is not correct becuase 500 x 0.015=7.5 inches. If he got this as an answer that would meen that the stack of paper is 7.5 inches tall, which is not correct.
If we divide 1.875 by 500 we get 0.00375 which is the thickness of each sheet of paper.
How do i find a mean in a data set?
Answers
Answer:
Add them all up then divided by how many numbers there are
Step-by-step explanation: :)
Answer:
How do you find the mean?
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are.
Step-by-step explanation:
The mass of 1 L of water is 1 kg. The mass of gasoline is 0.68 times the mass of water. What is the mass of the gasoline in a full tank that holds 75 L.
Answers
Hence, the mass of the gasoline in a full tank that holds [tex]75L[/tex] is [tex]680[/tex]grams.
What is the mass?
Mass refers to the quantity of matter in an object. Mass is generally measured by how much something weighs. The more matter something has, the more it will weigh.
Here given that,
The mass of [tex]1[/tex] L of water is [tex]1[/tex] kg. The mass of gasoline is [tex]0.68[/tex] times the mass of water.
As we know,
[tex]1L=1000ml[/tex]
So, [tex]0.68[/tex]×[tex]1000=680grams[/tex]
As per this the mass of water is greater than the mass of gasoline.
Hence, the mass of the gasoline in a full tank that holds [tex]75L[/tex] is [tex]680[/tex]grams.
To know more about the mass
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evaluate this expression when c= -2 and d= 2:
Answers
refer to steps for answer!
Step-by-step explanation:
you just have to put the given values in place of the variable names and then simply calculate.
(-2² + 2²) - 2(-2² - 2²) = (4 + 4) - 2(4 - 4) = 8 - 2×0 = 8
so, B is the right answer.
please remember the correct sequence of operations :
first are brackets.
then exponents.
then multiplications and divisions.
and then (at last) additions and subtractions.
and also please remember : multiplying a negative number with a negative number creates a positive result.
that is of course also true for squaring a negative number, as ² just means that the negative number is multiplied with itself.
now you also know the result of -2³, right ?
as this means -2 is multiplied 3 times by itself. what does that do to the sign ?
-2 × -2 = 4 (positive).
but now we have to multiply a third time
4 × -2 = -8 (because multiplying a positive number with a negative number creates a negative result).
i need help please....
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Answer:x=-7
Step-by-step explanation:
What is 4 3/10 plus (-6.2) in decimal form
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Answer:
Step-by-step explanation:
First change 4 3/10 to 4.3. Then you change 4.3 + -6.2 to 4.3 - 6.2.
Then you do 4.3 - 6.2 and you should get - 1.9.
Answer:
The answer is (-1.9)
Step-by-step explanation:
4 3/10 = 4 × 10 + 3/10 = 43/10 = 4.3
Now,
4.3 - 6.2 = -1.9
Thus, The answer is (-1.9)
-TheUnknownScientist 72
Why is taking a census better than taking samples in a survey?
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How can I improve my skills in math?
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Answer:
You can practice a lot and reliable resources to help get answers.
Step-by-step explanation:
a couple of sites to practice on is IXL, khan academy, and aleks. hope this helps. :)
Is the sequence arithmetic, geometric or neither? Then, find the next three terms. 0, 3, 6, 9, 12, ___, ___, ____
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Answer:
arithmetic (+3)
15, 18, 21
Step-by-step explanation:
Answer:
15,18,21
Step-by-step explanation:
Determine the number of solutions in this equation:
5x + 3 - 3x = 2 ( x + 3 ) - 5
Answers
Answer:
No solutions
Step-by-step explanation:
2x+3=2x+6-5
2x+3=2x+1
The two x's cancel out, so you get
3=1
Subtract 3 from each side to get
0=-2
So the answer is no solutions
Express this number in scientific notation.
0.00014
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Answer:
1.4 x 10^-4
I cant do powers on my laptop so thats what the arrow represents, I don't know if you know that or not so.
the -4 is because you move the decimal to the right 4 times to make the decimal between the two numbers making it 1.4
please help me thanksssssss
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Answer:
your welcomeeeeeeeeeeee
Step-by-step explanation:
:)
The sum on both sides need to be equal to be balanced. Because the right side is being multiplied then also multiply the left side.
Answer: 3rd choice: f1 x d1
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP AND NI FILES
Answers
I hate files that give you viruses, anyways I'm going to do this question.
Though, can you give me more information please?
Answer:
Melinda saves 2 less dollars than Marcus each week.
Step-by-step explanation:
Y = 12x + 75 is Melinda's equation. Y = 14x + 25 is Marcus's equation. First we'll disregard how much money they have saved already to see how much they save weekly. So Melinda's new equation is Y = 12x, and Marcus's new equation is Y = 14x. Now we'll do Marcus's equation (14x) - Melinda's equation (12x) to see how much more money Marcus saves each week, which will in turn will tell us how much less money Melinda saves each week.
14 x - 12x = 2. (x-x=0) This tells us Marcus saves 2 more dollars than Melinda each week.
Which gives us our answer, Melinda saves 2 less dollars than Marcus each week.
What is the value of the expression when c=0 and d=-6 ?
cd-d2/4
Answers
Answer:
-9
Step-by-step explanation:
This what you wrote:
[tex] cd - \dfrac{d^2}{4} = [/tex]
[tex] = (0)(-6) - \dfrac{(-6)^2}{4} [/tex]
[tex] = 0 - \dfrac{36}{4} [/tex]
[tex] = -\dfrac{36}{4} [/tex]
[tex] = -9 [/tex]
Maybe this is what you meant to write:
[tex] \dfrac{cd - d^2}{4} = [/tex]
[tex] = \dfrac{(0)(-6) - (-6)^2}{4} [/tex]
[tex] = \dfrac{-36}{4} [/tex]
[tex] = -9 [/tex]
If the perimeter of a regular pentagon can be expressed as 10s - 20, determine the length of each side.
50 s - 100
5 s - 10
s - 2
2 s - 4
pleaze hurry
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Answer:
50 s - 100
Step-by-step explanation:
Answer:
50 s - 100
Step-by-step explanation:
Can someone answer this for me?
Answers
Answer:
24.75
Step-by-step explanation:
divide 33.00 by 4 and multiply the sum by 3
Answer:
57.75
Step-by-step explanation:
Susan opened a college savings account 4 years ago. She opened the account with an initial deposit of $3,000. Starting the next year, she deposited $1,000 on the same day each year. The account earns interest at an annual rate of 4.15% and is compounded annually. Susan hopes to have earned enough interest to pay for her first year of college tuition, which costs $7,100. What is the difference between her ending balance after 4 years and the cost of her tuition?
Answers
Answer:
$20
Step-by-step explanation:
multiply 100.00 x 5% which is 100x 0.05, then it will give you 5.
add 5, 4 more times which will give you 20
i give brainiest how do i multiply 5/6 x 4/6
Answers
Answer:
Multiply the numinators together then the denominators. Answer 20/36 then simplify. Hope this helps :)
Step-by-step explanation:
OOops, answered the wrong question-
5/6 x 4/6 = 20/36 as simplified as 5/9 in fraction form.
Step 1
Multiply both numerators
= 5 x 4
= 20
step 2
Multiply both denominators
= 6 x 6
= 36
step 3
Use above values of step 2 & 3, and rewrite as below
= 20/36
how do I do 6,413-764 show your work, I will give brainliest
(I'm in middle school but i have long term memory and I forget how to do subtraction please help me)
Answers
The answer is 1714
Answer:
the answer is 5649
Step-by-step explanation:
4 pounds of grapes cost $5. 7 pounds of grapes cost $8.75. What is the cost per pound?
Answers
Answer:
$1.25 per pound
Step-by-step explanation:
$5 ÷ 4 = $1.25
$8.75 ÷ 7 = $1.25
The sum of the interior angles of any triangle is equal to:
A. 90°
B.120°
C. 180°
D.240°
E. 360°
PLEASE give me the answer im really stuck and tried so many times this is for a grade!! Thanks :)
Answers
The answer is c. 180
19= X+5*Z-12
what is X and Z?
Answers
Answer:
X = -5Z + 31
Step-by-step explanation:
Subtract 5Z5Z from both sides.
19 - 5Z = X - 12
19 − 5Z = X − 12
2 Add 1212 to both sides.
19 - 5Z + 12= X
19 − 5Z + 12= X
3 Simplify 19-5Z+1219−5Z+12 to -5Z+31−5Z+31.
-5Z + 31 = X
−5Z + 31 = X
4 Switch sides.
X = -5Z + 31
X = −5Z + 31
Answer:
19=x+5*z-12
19+12=x+5*z
31=x+5*z
then x=26 z=1
A summer camp cookout is planned for the campers and their families. There is room for 200 people. Each adult costs $4, and each camper costs $3. There is a maximum budget of $750. Write the system of inequalities to represent this real-world scenario, where x is the number of adults and y is the number of campers. x + y ≤ 200 4x + 3y ≤ 750 x + y ≤ 750 4x + 3y ≤ 200 x + y ≤ 200 3x + 4y ≤ 750 x + y ≤ 750 3x + 4y ≤ 200
Answers
Answer:
I think its A
Step-by-step explanation:
The required system of inequalities is x + y ≤ 200 and 4x + 3y ≤ 750. Hence, the first option is the correct choice.
What is inequality?Inequality is a non-equal relation between two expressions involving variables and constants.
The sign of the inequality can be, less than (<), greater than (>), less than or equal to (≤), or greater than or equal to (≥).
How to solve the question?In the question, we are asked to write the system of inequalities to represent the given scenario, where x is the number of adults and y is the number of campers.
We are informed that there is a room for 200 people.
Thus, the total number of people, that is, the number of adults + the number of campers, or, x + y should be less than or equal to 200.
This gives us an inequality:
x + y ≤ 200.
We are informed that the cost of an adult is $4 and the cost for a camper is $3, and the total budget is $750.
Thus, the total cost, that is, the cost of all adults + the cost of all campers, or, 4x + 3y should be less than or equal to 750.
This gives us an inequality:
4x + 3y ≤ 750.
Thus, the required system of inequalities is x + y ≤ 200 and 4x + 3y ≤ 750. Hence, the first option is the correct choice.
Learn more about writing inequalities at
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