Answers
Answer:
18
Step-by-step explanation:
3*6=18
Related Questions
A chemical company makes up batches of copper sulfate solution by adding 250 kg of copper sulfate powder to 1000 liters of water. A laboratory chemist wants to make a solution of identical concentration, but only needs 350 mL (0.35 liters) of solution.
How much copper sulfate powder should the chemist add to the water? Enter your answer in the box below in decimal format.
The mass of copper sulfate that the chemist should add is______
kg.
help me please
Answers
Answer:
0.07 kgStep-by-step explanation:
Assuming copper sulfate has same density as waterChemical to water ratio as per given is:
250 kg : 1000 liter = 1 kg : 4 literLab solution is 350 ml
Converting to same ratio as above:
350/(1 + 4) = 70 ml
70 ml : 280 ml = 70 g : 180 ml = 0.07 kg : 180 mlAnswer is 0.07 kg
What is 9(x + 8) + x(5+4)
Answers
Answer:
72+ 18x
Step-by-step explanation:
9x+72+5x+4x
72+ 18x
9x + 72 + 5x + 4x
18x + 72
(If you have been asked to solve for x then also include the following, if not then only write what is above!)
18x + 72 = 0
18x = -72
x = -4
A half marathon is 13.1 miles long. Which equation could be used to determine the time, t, it takes to run a half marathon as a function of the average speed, s, of a runner?
Answers
Answer:
time(t)=distance(13.1)/speed (s)
hope this helps
MARK AS BRAINLIEST
MARK AS BRAINLIEST
Answer:
Time=distance/average speed
Step-by-step explanation:
Example:
Average speed: 13.1 miles per hour
Distance: 13.1 miles
Time: x
X= distance/speed
X= 13.1/13.1
X=1
Search for Speed/Time/Distance (Physics)
f(x) = − 1
2
x for x = –6
Answers
Answer:
Your an idiot and i oop hahahahah thats what u did on my question. YOUR AN IDIOT UR A IDIOT U SUCK.
Step-by-step explanation:
Find the equation of the straight line passing through the point (0,2) which is perpendicular to the line y=1/4x+5
Answers
Answer:
y=-x+2
Step-by-step explanation:
Which two integers is –85 between?
Answers
Answer:
-84 and -86
Step-by-step explanation:
Will give brainliest: Hugh made a recipe that yields 5 and 1 over 4 cups. If each serving is 1 over 2 cup, which expression will help Hugh determine the number of servings his recipe will yield?
5 1/4 x 1/2
5 1/4 + 1/2
5 1/4 / 1/2
5 1/4 - 1/2
Answers
Answer:
5 1/4 / 1/2
Step-by-step explanation:
Thay will equal the amount of halves u need if u solve it.
Answer:
5 1/4 divided by 1/2
Step-by-step explanation:
Luis rides his bicycle 34 mile in 15 minutes, or 14 hour, along the bike trail.
Assuming he rides at a constant rate, what is his speed, in miles per hour? Use the table to help find the answer.
Enter your answer in the box.
Miles 34 ?
Hours 14 ?
miles per hour
Answers
Luis' speed in miles per hour is 136.
What is speed?Velocity is the pace and direction of an item's movement, whereas speed is the time rate at which an object is travelling along a route.
By dividing the miles he cycled by the hours he traveled, one may calculate Luis' speed in miles per hour.
Because the measurement must be in miles per hour,
the time would be expressed in hours rather than minutes.
Speed = distance / time
Distance = 34 miles
Time = 15 minutes.
Speed = 34 ÷ 15 miles per minute.
Speed = 34 ÷ 1/4 miles per hour.
Now, speed = 34 x 4 miles per hour.
Therefore, Luis' speed is 136 miles per hour.
To learn more about the speed;
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On another day, Martin bought 123
5
pounds of grapes for a picnic. His friend bought 3
8
of that amount. Use compatible fractions to estimate how many pounds of grapes Martin’s friend bought.
123
5
→
3
8
→
Martin's friend bought about
pounds of grapes.
Answers
Answer:
1.)✔ 12 1/2
2.) ✔ 1/2
3.) ✔ 6 ¼
Step-by-step explanation:
75% of the items collected at the food drive were cans of soup. If 90 cans of soup were
collected, how many items were collected in all?
Answers
Answer:
67.5
Step-by-step explanation:
Answer:
120
Step-by-step explanation:
If 90 cans of soup were collected and it was 75%, take 90/3=30. If 25% of all cans is 30 then when you multiply by 4, to get 100%, you have 120 cans. Also 120/75%= 90
2 1/2 + (-1/3)
PLz, help me with this question.
Answers
Answer:
2 1/6
Step-by-step explanation:
who wants to go out
girls look at my pic on profile An airline charges an extra fee if a carry-on bag weighs more than 30 pounds. After packing, Lorrie’s carry-on weighs 21.2 pounds. The inequality represents the amount of weight Lorrie can add to the carry-on without going over the 30-pound limit.
21.2 + w less-than-or-equal-to 30
How much weight can Lorrie add to the carry-on without going over the 30-pound limit?
less than 8.8 pounds
more than 8.8 pounds
no less than 8.8 pounds
no more than 8.8 pounds
Answers
Answer:
no more than 8.8 pounds
Step-by-step explanation:
On her first 5 tests, Francine scored 78%, 82%, 89%, 83% and 84%. What was her mean score?
Answers
Answer:
83.2%
Step-by-step explanation:
Just add all the percentages together and divide it by the number of scores, which in this case is 5.
Answer:
83.2%
Step-by-step explanation: we know, mean = sum of data/ number of data
= 78+82+89+83+84
=416
now ,
416/5 = 83.2%
HELPPPP ORDER THE NUMBERS FROM LEAST TO GREATEST
-3.5, √20, negative √19, 4.9, 3/2
Answers
Answer:
[tex]\sqrt{-19} , -3.5, 3/2, \sqrt{20} , 4.9[/tex]
Negative numbers go first, the greater the number, the smaller the number.
Answer:
-√19,-3.5, √20, 4.9, 1/2
Step-by-step explanation:
Find the square root of 19 ( Which you can't) always have the negatives go first because negatives are the greatest. Find the square root of 20, which equals 4.4, then divided 3/2 which gives you 1.5. I hope this helped! I'm not the best at explaining either.
PLS I NEED THIS! ASAP
Answers
Answer: the answer is -5/6 . 2-3/1
Step-by-step explanation:
I had one of these questions before in my exams. I'm pretty sure you
will get it right.
PLEASE HELP ME I ONLY HAVE 10 MINS TO FINISH ALL MY ASSIMENTS, WILL GIVE BRAINLIEST AND 15 POINTS
question:The baseball infield has an area of 90^2 square feet. What is the area of the infield?
Answers
Answer:
8100 square feet
Step-by-step explanation:
( 8-5 )²
how to simplify
Answers
Answer:
9
Step-by-step explanation:
(8-5)^2
3^2
3×3
9
Hope this helps :)
If 2/5 of the books in the library are fiction and 1/4 of the fiction books are science fiction, what fraction of the books in the library are science fiction? check all that apply.
A. 2/5
B. 1/4
C. 4/7
D. 3/7
Answers
None of the provided options match the correct fraction. The correct fraction is 1/10, which is not listed.
Let's calculate the fraction of science fiction books in the library based on the given information.
If 2/5 of the books in the library are fiction, then the fraction of fiction books in the library is 2/5.
Now, if 1/4 of the fiction books are science fiction, we can find the fraction of science fiction books in the library by multiplying the fraction of fiction books by 1/4:
Fraction of science fiction books = (2/5) * (1/4)
Fraction of science fiction books = 2/20
Simplifying the fraction, we get:
Fraction of science fiction books = 1/10
So, the fraction of books in the library that are science fiction is 1/10.
None of the provided options match the correct fraction. The correct fraction is 1/10, which is not listed.
To know more about Fractions:
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Buthaina bought some books for 6$ each and received a discount of 8$ off of her total purchase. She spent 58$ after the discount. How many books did she buy?
Answers
Answer: Buthaina bought 11 books.
Step-by-step explanation:
First, write your givens.
1 book costs $6.00
A discount of $8.00
Total AFTER discount $58.00
Add the discount to your total= 58.00+8.00=66.00
Take your total BEFORE the discount (66.00) and divide it by 6.
66/6= 11.
She bought 11 books.
Answer:
66 dollars
Step-by-step explanation:
i added 8 dollars to the 58
Please answer the questions. I am sick today and cant even solve the questions.っ╥╯﹏╰╥c
Question number 7 i got a bit headache!!π_π
Please show ways too helpers.
Answers
Step-by-step explanation:
2. a) SA= 33cm²
b) w= 1cm
c) l= 5cm
d) h= 5cm
3. 38 100 cm² if wood
#1) Mrs. Ebanks planted two trees on a
planning grid at coordinates (0,8) and
(12, 4). Determine the distance between
the trees using the given appropriate
formula.
show all work!
Answers
Answer:
D = 12.94 m
Step-by-step explanation:
Coordinates of first tree = A(0,8)
Coordinates of second tree = A(12,4)
We need to find the distance between the two trees. We can find it using distance formula for coordinates as follows :
[tex]D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
We have, x₁ = 0, x₂ = 12, y₁ = 8, y₂ = 4
Now using distance formula,
[tex]D=\sqrt{(12-0)^2+(4-8)^2}\\\\=\sqrt{144+16} \\\\=12.64\ m[/tex]
So, the distance between the two trees is 12.64 m.
Which of the following values are solutions to the inequality
Answers
Identify the property on this equation 5(a + 3b) = 5a + 15b
Answers
Answer:
??????????????????????
Step-by-step explanation:
Answer: Distributive Property
The term "distribution" is also used in place of "distributive"
This property says
x*(y+z) = x*y + x*z
We multiply the outer term x with each inner term (y and z). Then we add the results.
In this case,
x = 5
y = a
z = 3b
So,
5(a+3b) = 5*a + 5*3b = 5a+15b
Jodie bought a music player on sale for 50% off the original price, for $60. What was the price of the music player before the sale?
Answers
Answer:
the answer is $120
Step-by-step explanation:
60+60 is 120
If you get this one correct I WILL MARK BRAINLEST thanks
Answers
Answer:
111 111 11 1 111 111 1 11 111
Step-by-step explanation:
3 pizzas
helpppp pllzzzz
I need help w this asap thankkkk in advance
Answers
Can someone help me please?
Answers
Answer:
about 6000π
Step-by-step explanation:
Here is the working
What do you have to increase a number by to change it's place value
Answers
Answer:
Build more buildings
Step-by-step explanation:
Answer:
change by a tenth to hundredth to thousandth to the millionth
Step-by-step explanation:
brainliest for right answer
Quadrilateral ABCD has coordinates A(-2,0), B(0,4), C(4,6), and D(2,2). If it is
reflected over the x-axis, what are the coordinates of C'? (Answer as an ordered
pair without spaces)
Answers
Answer:
C' (4,-6)
Step-by-step explanation:
Any point being reflected over the x-axis will undergo the following transformation:
(x, y) --> (x, -y)
(4, 6) --> (4, -6)
The coordinates of C',
C(4,6) → C'(4, -6).
What is a reflection?A reflection is a type of transformation that involves flipping a shape, known as the preimage, over a line, known as the line of reflection, to produce a new shape (called the image). You can picture what would happen if you flipped the form over the line in order to graph a reflection.
Given:
Quadrilateral ABCD has coordinates A(-2,0), B(0,4), C(4,6), and D(2,2).
If it is reflected over the x-axis,
The reflection rule:
(x, y) → (x, -y)
The coordinates of C',
C(4,6) → C'(4, -6).
Therefore, the image point of C is C'(4, -6).
To learn more about the reflection;
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(9+7i)+(-5-31) =
add complex numbers
Answers
Answer:
4 + 4i
Step-by-step explanation:
Add the real part and add the imaginary part.
9 + 7i + (-5 - 3i) = 9 + 7i - 5 - 3i
= 9 - 5 + 7i - 3i
= 4 + 4i
Answer:
44
Step-by-step explanation:
Okay so we are given (9 + 71) + (-5 - 31).
We need to figure out the value of this expression.
First, let's solve the expression (9 + 71).
1. (9 + 71) = 80.
Now we have 80 + (-5 - 31).
Next, let's solve the expression (-5 - 31).
2. (-5 - 31) = -36.
We're left with 80 + (-36).
Finally, let's add the two numbers together.
80 + (-36) = 44
So (9 + 71) + (-5 - 31) = 44
Feel free to give brainliest.
Have an excellent day!
