You work as a lab assistant. Each morning you are responsible for grouping the correct number of test tubes for each experiment that will be conducted that day. Today 40 test tubes will be used for 12 experiments. The first two experiments will require 4 test tubes each. Six of the experiments will require 3 test tubes each, and 2 of the experiments will require 2 test tubes each. Each of the two remaining experiments will use exactly the same number of test tubes.
Which calculation is appropriate to perform first when determining the number of test tubes that will be used for each of the two remaining experiments?
A) 10/2
B) 40 − 30
C) 40 − 12
D) 2(4) + 6(3) + 2(2)
Answer: D
Step-by-step explanation:
In total 40 test tubes are required for 12 experiments.
The first two experiments will require 4 test tubes for each.
Hence, there will be a requirement of = 8 test tubes.
Six experiments require 3 test tubes each.
Hence, these 6 experiments will take 18 test tubes.
Other 2 experiments will take 2 test tubes.
Here, = 4 test tubes will be required.
Till now a total of (8 + 18 + 4) = 30 test tubes have been used.
The remaining number of test tubes is (40 - 30) = 10.
The remaining experiments require test tubes.
The first calculation to perform is 2(4) + 6(3) - 2(2).
I need help pls.. and thank you..
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Answer:
Step-by-step explanation:
it is increased by an amount
I need to answer this for an assignment, and I need help. If anyone could, I appreciate if you would!
A student needs to find the density of a cube. Each side of the cube measures 3 cm and the mass of the cube is 27 g. What is the approximate density of the cube?
A. 0.2 g/cm3
B. 0.5 g/cm3
C. 1 g/cm3
D. 1.5 g/cm3
Answer:
D
Step-by-step explanation:
3*6=18 and then u take 27/18
CAN SOMEONE EXPLAIN HOW I DO THESE PROBLEMS? IM SO CONFUSED AND I HAVE A LOT TO DO PLEASE !!!!!!!
1. What two directions could point B be located related to point A? Write two equations to represent the possible locations of point B or in other words, how did you travel to point B. Make a conclusion about the sums in relation to the integers in the equations on the next slide.
2. Explain How you could use absolute value to show that -4+3 and 3+(-4) have the same value. Which property of addition states that these sums are equivalent?
3. You know that the sum of -5 and another integer is a positive integer. What an you conclude about the sign of the other integer? What can you conclude about the value of the other integer?Explain.
4. Jim is standing beside a pool. He drips a weight from 4 feet above the surface of the water in the pool. The weight travels a total distance of 12 feet down before landing on the bottom of the pool. Explain how you can write a sum of integers to find the depth of water.
Answer:
well your asking a question that needs a graph
Step-by-step explanation:
URGENTTTTT!!!!!!!
Jennifer’s bank account is modeled by the following equation where x equals the number of weeks and
f(x) equals the total balance.
f(x) = 12x + 45
william's bank account balances after weekly deposits are showing in the following table.
How much money was in Jennifer's account when it was opened?Explain.
Answer:
The answer is 30 when she opened the account.
Step-by-step explanation:
0 weeks/total balance is 30
find the values of the variables in each diagram
Answer:
q = 75°, t = 105°, s = 105°, r = 75°
This is due to the idea of corresponding angles, and linear pairs due to parallel lines.
Garrett says this is a function is his statement correct? E. 10 18 16 121 6 8 10 -101-861-4 1-2 2 14 6 18 101 O True O False
Answer:
true
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
Algebra I - Pls help - Brainliest for first answer
Answer:
[tex]\huge\boxed{l = \frac{p}{2} - 2}[/tex]
Step-by-step explanation:
If we have the equation [tex]p=2(l+w)[/tex] and we want to solve for l, our goal is to isolate l on one side of the equation.
We can do this by reversing the equation - looking at what is stopping l from being alone on one side.
First lets divide both sides by 2:
[tex]p \div 2 = 2(l+w) \div 2\\\frac{p}{2}=l+w[/tex]
Now we can subtract w from both sides.
[tex]\frac{p}{2} - w = l+w-w\\\\\frac{p}{2} - w = l[/tex]
Hope this helped!
For 2 minutes, a satellite traveled at a steady speed. It traveled 380 kilometers around Earth in that time. What was the satellite's speed?
Question 3 options:
The satellite's speed was 90 kilometers per minute.
The satellite's speed was 10 kilometers per minute.
The satellite's speed was 190 kilometers per minute.
The satellite's speed was 200 kilometers per minute.
Answer:
it should be 190 380 divided 2 I think its right might be wrong I'm 7th grade
Step-by-step explanation:
6/b = 3 ...............
Answer:
Step-by-step explanation:
2
Answer: 6/12
hope it helped
Can I have Brainliest?
Step-by-step explanation:
The most massive planet in the solar system, Jupiter, has a mass of about 1,898,000,000,000,000,000,000,000,000 kg.
The least massive planet is Mercury, which has a mass of about 330,000,000,000,000,000,000,000 kg.
How many times more massive is Jupiter than Mercury? Answer the questions to find out.
1. Estimate Jupiter's mass using a one-digit whole number times a power of 10. Be sure to include units.
Answer:
Step-by-step explanation:
The number of times that Jupiter is more massive than Mercury is calculated as; 5.75 × 10³ times
How to divide large numbers?
We are given;
Mass of Mercury = 330,000,000,000,000,000,000,000 kg = 3.3 × 10²³ kg
Mass of Jupiter = 1,898,000,000,000,000,000,000,000,000 kg = 1.898 × 10²⁷ kg
Thus, to find how many times more massive is Jupiter than Mercury is;
n = (1.898 × 10²⁷ kg)/(3.3 × 10²³ kg)
n = 5.75 × 10³ times
Read more about large numbers at; https://brainly.com/question/251701
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Please answer asap!
The length of a rectangle is twice its width. If the perimeter of the rectangle is 48 ft , find its length and width of the rectangle.
Answer:
length=16ft
width= 8 ft
Step-by-step explanation:
Perimeter of rectangle = P = 48ft
Length = 2w
Width = w
Perimeter of rectangle = 2(Length+Width)
48=2(2w+w)
48=2(3w)
48=6w
48/6=6w/6
8=w
w=8ft
Length = 2w = 2(8)=16ft
Width = w = 8ft
Answer:
The length is 16 ft and the width is 8ft
Step-by-step explanation:
48 divided by 4 = 12
one has to be double of the other
12-4=8
12-4=8
12+4=16
12+4=16
16+16+8+8=48
According to Article II of the Constitution, one of the president’s duties is to
serve as commander in chief.
create laws and interpret them.
set up and manage the courts.
serve in the House and Senate.
Answer: serve as commander in chief
If (4 + 1) ( + 4) = 2 + + , what is the value of + + ?
Answer:
The Answer Is 5
Step-by-step explanation:
please help me with these questions (pt 2)
Answer:
ima answer this give me a second to
Answer:
1. 9/2,∞
2. d > 12
The table shows how the cost of a tractor repair depends on the time needed for the repair.
Repair time Cost
(hours ) (dollars)
ーーーーーーーーーー
2 I 180
5 I 450
? I 630
10 I 900
20 I 1,800
Which expression can be used to find the number that is missing from the third row of the table?
A. 450➗5
B. 630➗7
C. 450➗90
D. 630➗90
Answer:
im stupid so im gonna need more info
Prove Triangle ABC cogruent to HGF
Answer:
Yes it is congruent because it does not corresponds
PLEASE HELP!!
Part A Write and expression that represents the temperature (in degrees Fahrenheit) of the water after Raul added the ice cubes. Write the expression as the sum of two numbers.
Answer:
The answer is 33.2*F (72.3*F - 39.1*F because the temp. is *dropping* 39.1*F)
Step-by-step explanation:
If there is a negative change in temp. then that is just like subtracting the change from the base degree (F)
who know what to do help please!!!
Cell Phone Plan A charges $25 per month plus $10 per gigabyte of data. Cell Phone Plan B charges $50 per month plus $5 per gigabyte of data. What number of gigabytes of data results in the same cost for one month?
Answer:
[tex]gb = 5.[/tex]
Step-by-step explanation:
[tex]plan \: A. : \\ 25(per \: month) \: + 10(per \: gb) \\plan \: B. : \\ 50(per \: month) \: + 5(per \: gb) \\for \: both \: plan \: to \: be \: equal \: based \: on \: gb : \\ 50 + 5gb = 25 + 10gb \\ 5gb = 25 \\ gb = 5.[/tex]
The number of the Gega bytes for the same cost will be 5 GB.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Cell Phone Plan A charges $25 per month plus $10 per gigabyte of data. Cell Phone Plan B charges $50 per month plus $5 per gigabyte of data.
The two equations can be written as,
Plan A, 10G + 25
Plan B, 5G + 50
Equate two equations for the same cost.
10G + 25 = 5G +50
10G - 5G = 50 - 25
5G = 25
G = 5 gb
Therefore, the number of the Gega bytes for the same cost will be 5 GB.
To know more about an expression follow
https://brainly.com/question/13745582
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A college campus has a lawn shaped like a circle with a radius, r, of 60 meters. Which is the best approximation of the area, A, of the circular lawn? (Use A=πr2; π is approximately 3.14.)
Answers:
A. 180 square meters
B. 360 square meters
C. 2,800 square meters
D. 11,300 square meters
Which of the following represents a major difference between the Incas and the Phoenicians?
The Incas relied heavily on trade, but the Phoenicians did not.
The Phoenicians relied heavily on trade, but the Incas did not.
The Incas had a system of writing, but the Phoenicians did not.
The Phoenicians had a system of writing, but the Incas did not.
edit:
sorry wrong subject
The ratio of the first row values to the second row values in the table shown is constant in each column.
Which table shows the correct value for "p?"
A.) 11
B.) 12
C.) 14
D.) 15
Solve the following algebraic equation. Show each step of the process.
1/4 (y+24)=32
Answer:
y=104
Step-by-step explanation:
So you do 4 time the whole process to get 1(y+24)=128
and then you simplify the 1 into (y+24) which gets you y+24.
And now you have y+24=128, you minus 24 on both sides, y+24-24=128-24 which is y=104
Answer:
y = 104
Step-by-step explanation
y+24=32 x 4
y+24=128
y=128-24
y=104
hope that helps
After learning how to fly, Wendy reduced her daily commute time by 75%. Previously, her commute took m minutes. Which of the following expressions could represent Wendy's commute time, in minutes, after she learned how to fly?
Choose 2 answers:
A. 1.75m
B. 0.75m
C. 0.25m
D. [tex]\frac{1}{4}m[/tex]
E. [tex]\frac{3}{4} m[/tex]
Answer:
The answer would be 0.75m
Step-by-step explanation:
What is the natural phenomenon that will be explained? or What do we see in nature because of this story? What did the character learn that relates to the nature?
(Ares god of war)
Answer:
“These phenomena, like all others, demand an ultimate exposition of the truth.” This innocuous passage from a 22 March 1930 review in Nature of the book Growth and Trophic Movements of Plants by Jagadis Chandra Bose caught Gregory’s eye: it shared his vision of science as the search for a deep connection with the absolute truth. The review’s 26-year-old author, Lionel John Farnham Brimble (pictured) — Jack to his friends — was duly asked to join the Nature team as an assistant editor in 1931. Like Gregory, Brimble had earlier passed over a career in research to be an educator and communicator of science, and he flourished in the Nature office. In the late 1930s, he actively pushed for schools to teach biology, particularly his speciality of botany, which was previously taught only to girls in Britain.
Step-by-step explanation:
I hope that this help with your question.sorry if it doesn't!!!
Answer:
Sorry Im doing a challenge. I'll edit this to the correct thing soon
Step-by-step explanation:
PLEASE HEP!! I WILL GIVE BRAINLIEST TO BEST ANSWER!! PLEASE INCLUDE AN EXPLANATION!!
Answer:
No the 0 shouldn’t be there because 8.35 is for each one so 0 doesn’t count.
Step-by-step explanation:
Hope this helps!
imagine that you are plotting points on a coordinate plane. each axes is labeled with integers from -5 to 5. explain how you would plot a point at the location (-2 1/2, -4)
write three or four sentences
Answer:you would go -2.5 to the left the down -4
Step-by-step explanation: hope it helps
Answer:
Start at the origin. The x-coordinate is −2½ , so move left 2½ units. −2½ is halfway between −3 and −2. The y-coordinate is −4, so move down 4 units. Plot the point.
Step-by-step explanation:
hope this helps:)
what expressions are equivenlent to 1/2 - 2/5
Answer:
3/10
6/20
18/40
etc.
Step-by-step explanation:
1/2-1/5
5/10-2/10=3/10