A student has a container with a volume of 0.5 liter. He estimates the volume to be 0.4 liter. By what percent is the student's estimate off?
Answer:
20
Step-by-step explanation:
0.5-0.4=0.1,0.1/0.5×100= 20
The students's estimation is 80%.
What is a percentage?A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.
Given that a student has a container with a volume of 0.5 liter.
He estimates the volume to be 0.4 liter.
Now to find the percentage of estimation,
estimated volume = correct volume × required percentage / 100
0.4 = 0.5 × required percentage / 100
Required percentage = 0.4 × 100 / 0.5
Required percentage = 0.4 × 100 / 0.5
Required percentage = 80%
Therefore, the students's estimation is 80%.
To learn more about the percentage;
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please help me my aleks topics are due tomorrow and i will give you brainliest :(
Answer:
Step-by-step explanation:
for a) 6(9x-4)=15 x-24 by using the distributive prop,
also correct is 6*9x- 6*4
b) 7y+5y9y=21y
correct also 7y+14y
Graph the equation y=2x+10
Answer: Look below this should answer your question. I think this is the right answer
Stephanie, Mike, and Howard gather blackberries for their grandmother. Stephanie picks 438 pounds, Mike picks 2.5pounds, and Howard gathers 314pounds of blackberries. If they place all the blackberries in one bowl and divide the amount equally, how many pounds will each person give to their grandmother?
A: 3 1/3 pounds
B: 3.375 pounds
C: 3 pounds
D: 3.0412 pounds
Answer:
B. 3.375 pounds
Step-by-step explanation: because its the awnser...
help just help me... please
Answer:
Its going by 3/8.
Step-by-step explanation:
the missing number is 1 5/8. I don't know if I'm right for the second
Which of the following uses the reciprocal property to rewrite x/5 = 72/4
Please help me :)
Answer:
??You texted incomplete question.
By the way, x = 90
Convert the following repeating decimal to a fraction in simplest form.
.53
Is 3 a solution to 4x - 3<5?
Answer:
To solve this
4x-3<5
4x<5+3
4x<8
x<8/4
x<2
so no, three is not a solution
Step-by-step explanation:
Answer: No
Step-by-step explanation:
X = 3
Replace the variable X with 3
4 x 3 - 3 (less than or equal to) 5
4 x 3 = 12 - 3 = 9
9 is not equal to or less than 5, thus 3 is NOT a solution
HELP ILY A tree is 4 1/2 feet tall. It is expected to grow by 1 3/4
feet per year.
At this growth rate, how many years will it take for the tree to have a height greater than 40 feet? Enter the answer in the box.
years
Answer:
It will take 21 years.
Step-by-step explanation:
First, find what x would be for it to equal 40 feet. This can be done with the equation 4.5 + 1.75x = 40.
4.5 + 1.75x = 40
Subtract 4.5 from both sides. This cancels out the +4.5.
1.75x = 40 - 4.5
Subtract 4.5 from 40 to get 35.5.
1.75x = 35.5
Divide both sides by 1.75. This cancels out the *1.75.
x = 35.5/1.75
Expand 35.5/1.75 by multiply both the numerator and denominator by 100.
x = 3550/175
Reduce 3550/175 by canceling out 25.
x = 142/7 = 20 2/7
Go up by one from 20 to get the answer of 21 years.
Ivan has 17 times as many nickels as Nicole.Select the variable expression that shows how many nickels Ivan has if n is the number of nickels that Nicole has.
Answer:
17 n
Step-by-step explanation:
Ivan has 17 times as many nickels as Nicole.
Let Nicole has n nickels.
It would mean that,
No. of nickels Ivan have = 17n
Hence, there are 17n nickels Ivan has.
Answer:
17n
Step-by-step explanation:
Tell which number is greater.
1/3, 30%
Answer:
They are equal.
Step-by-step explanation:
In my opinion 1/3 is grater because three 1/3's makes a whole. 30% three times is only 90% of the whole.
Two fair dice are rolled. What is the probability of rolling:(a)double 6 (b)double 3(c) one dice 5, the other dice 6(d) a total of 10(e) a total of 3 or less
Please help me thanks please
Answer:
1200 cubic units
Step-by-step explanation:
If you split the shape into two parts, you can find the volume of each and solve. For the first part, you do 10x8x6 to get 480. For the second part you do 12x10x6 to get 720. Add 480+720 to get 1200.
Hope it helps!
1. A triangle has a base of 8km and height of 3km. What is the area of the triangle?
2. What is the area of a triangle with a base of 4 inches and a height of 9 inches?
Help would be much appreciated
Answer:
1. 12 square kilometers
2.18 square inches
Step-by-step explanation:
To find the area of a square you multiply the base and the height. Then you divide it by 2. 8 times 3 divided by 2 is 12. 4 times 9 divided by 2 is 18. Hope this helps!
Matthew drove 15.5 miles in 0.25 hour. What was Matthew's average speed?
Answer: 62 mph
Step-by-step explanation: We know that Matthew drove 15 1/2 miles in 1/4 of an hour.
Evaluate the function:
f(x)=x2−4x, find f(−3)
Answer:
f(-3) = 21
Step-by-step explanation:
To solve this, you can replace all x's with -3 and then solve to find the answer.
f(x) = x^2 - 4x
f(-3) = -3^2 - 4(-3)
f(-3) = 9 - (-12)
f(-3) = 21
I hope this helps!
Are 5x and 5x^2 like terms? Explain your answerc
Answer:
No. 5x and 5x² are not like terms.
When a variable is raised to two different powers, they can not be added together.
Another way to look at it is to note that:
5x + 5x² ≡ 5x(1 + x)
It is more obvious there that 1 and x are not like terms, thus neither are 5x and 5x², though they do have common factors.
Which expression can you simplify by combining like terms?
6d2+5cd−3dc+8
12c2−8d2c+3dc+4
7d2−3c2+6d−c
16c2+8cd+7c−8d
Answer:
[tex]6 {d}^{2} + 5cd - 3dc + 8[/tex]
Step-by-step explanation:
b/c we can substructure 5cd and 3dc b/c it doesn't matter if the place of cd and dc change. what I mean if 5 ×3=15 and it is the same with 3×5=15 both of the product are the same but, if it is - and ÷ it wil be wrong for example 5-3=2 but 3-5= -2
if is helpful ❤❤
THANK YOU
help help help help help help help help help
Answer:
Exact Form: 3/2
Decimal Form: 1.5
Mixed Number Form: 1 1/2
is 6z-2z+4=4+2z+6z equivalent
Answer:
Step-by-step explanation:
0
Answer:
Yes
Step-by-step explanation:
Lol
I need help solving this practice math problem
For triangle FGH the measure in degrees of angles F,G, And H are 86,32, and 3x+5 respectively what is the value of x?
Answer:
The answer is 19
Step-by-step explanation:
add like terms which are 86 32 and 5 and you get 123 subtract that from 180 and get 57 divide 57 by 3 and get 19
Answer:
The answer is 19
Step-by-step explanation:
Mr. Gibson has $800 in his bank account. His brother has 100 times as much money in his bank account as Mr. Gibson has. How much money does Ms. Gibson's brither have in his bank account? *
Please answer this questionnnn
Answer:
it's either 1/1250 or 1250/1 I'm not really sure which way
Calculate |m| if m=21-72i. Round off answer to nearest hundred
Answer:
n6666667900087474455
3х - 7= 2х + 3 help !
y = 4x + 2
y = -2x - 4
Answer:
x = −1
y = −2
angle A and angle B are vertical angles. If m_A = (7x – 6) and m B = (8x – 27), then find the measure of angle b
Answer:
A = B; 7x - 6° = 8x -27°; x = 21°. So B = 8·21° - 27° = 141°
Step-by-step explanation:
-3w-4=3+3
w=?????????
Answer:
-3.33333
Step-by-step explanation:
-3w - 4 = 3 + 3
Combine like terms
-3w - 4 = 6
Add 4 on both sides
-3w - 4 + 4 = 6 + 4
-3w = 10
Divide by -1 to isolate the variable
-3w/-3 = 10/-3
w = - 3.33333 ( the 3 keeps repeating)
which ordered pairs show the location of the bleachers? check all that apply.
a. (2.0, 1 1/2)
b. (1.50, 2.0)
c. (-2.0, 1.50)
d. (1.50, -2.0)
e. (1 1/2, 2)
f. (1 1/2, -2
il pick brainliest!!