1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
OlgaM077 [116]
3 years ago
10

In Science Class, Sara needed 8 test tubes for 3 different experiments. The first experiment required 2 test tubes and the other

two experiments required the same number of test tubes. How many test tubes were need for each of the other two experiments l?
Mathematics
1 answer:
worty [1.4K]3 years ago
4 0

Answer:

Each\ of\ other\ two\ experiments\ required\ 3\ test\ tubes.

Step-by-step explanation:

Let\ each\ of\ other\ experiment\ requires\ x\ test\ tube\\\\Total\ number\ of\ test\ tubes\ needed=8\\\\Test\ tubes\ used\ in\ the\ experiments=sum\ of\ number\ of\ test\ tubes\ in\ each\ experiment\\\\Test\ tubes\ used\ in\ the\ experiments=2+x+x\\\\2+x+x=8\\\\2+2x=8\\\\Subtract\ 2\ from\ both\ sides\\\\2+2x-2=8-2\\\\2x=6\\\\divide\ both\ sides\ by\ 2.\\\\x=3

Each\ of\ other\ two\ experiments\ required\ 3\ test\ tubes.

You might be interested in
A plant that manufactures metal plates has a quality control team to check that the plates are the right size. A rectangular pla
Kamila [148]

Answer:

Given the size of rectangular plate in advertisement = 5 cm by 3cm.

Given the condition for length should be   = 0.25 of 5 cm  

Step-by-step explanation:

Now, have to write the inequality from the given data.

Therefore,  5- 0.25 ≤ L ≤ 5+.25

4.75 ≤ L ≤ 5.25

We know that the area of a rectangle =  Length × Width.

 Width = 3

Thus, the area is 3 × L

3× (4.75) ≤ 3×L ≤3× (5.25)

14.25 ≤ 3×L ≤ 15.75

So the minimum area is 14.25 cm^2

The maximum area is 15.75 cm^2

4 0
3 years ago
Find an equation of the line described below. Write the equation in slope-intercept form (solved for y), when possible.
SCORPION-xisa [38]

The equation of the line in slope-intercept form would be y = m(x - 1/5) - 8.

<h3>What is slope intercept form a straight line?</h3>

The slope-intercept form of a straight line is used to get the equation of a line. We need to know the slope of the line and the intercept where the line crosses the y-axis in order to use the slope-intercept formula.

One of the most popular ways to represent a line's equation is in the slope-intercept form of a straight line. When the slope of the straight line and the y-intercept are known, the slope-intercept formula can be used to determine the equation of a line ( the y-coordinate of the point where the line intersects the y-axis). The equation of a line is the equation that each point on the line fulfills.

Since the slope is undefined in the given question, let us consider it as m.

Therefore, slope=m

Given points are 1/5 and -8, so x₁ = 1/5 and y₁ = -8

We know the formula is, y - y₁ = slope × (x - x₁)

Putting the values of x₁, y₁ and slope in the given formula we get,

y -(-8) = m × (x-1/5)

y = m(x-1/5) - 8

Hence, we get the required equation.

To learn more about slope intercept form, visit:

brainly.com/question/9682526

#SPJ13

8 0
1 year ago
The formula for the area of a triangle is, 1 А A= bh Calculate the height of a triangle when A= 24 m2 and b = 8 m.​
Sphinxa [80]

I hope this helps you

A=1/2.b.h

given Area is 24 and base is 8

24=1/2.8.h

24=4.h (divide 4 both of sides)

h=6 (height)

3 0
3 years ago
4
kiruha [24]

Answer:

39 tons

Step-by-step explanation:

35 + 4 = 39

6 0
3 years ago
What is the solution set for the open sentence with the given replacement set?
White raven [17]
The Answer is 2

I hope this helps
7 0
3 years ago
Other questions:
  • Membership in the Volunteers Club increased by 15% from last year. If the number of members last year was m, complete a simplifi
    11·1 answer
  • The newspaper in Haventown had a circulation of 80,000 papers in the year 2000. In 2010, the circulation was 50,000. With x = 0
    15·2 answers
  • A survey of 1950 people found that 39% preferred chocolate ice cream to vanilla. About how many people preferred chocolate ice c
    15·2 answers
  • 2 A rectangular pyramid and rectangular prism have congruent bases and heights. The area of each of the bases is 36 in.2. 36 in.
    14·1 answer
  • 8(4n + 3) = – 72<br> show your work
    15·2 answers
  • Create a proportional ratio<br> to the given ratio.<br> 10<br> 5
    5·1 answer
  • I have a diameter of 45 in, what is the radius ?
    12·2 answers
  • 1 1/2 x -2= <br> PROCESS !!!!
    10·1 answer
  • Given that 9=110 8=70 an p is parallel to q did I fill this out right?
    13·2 answers
  • An airplane is flying from New York City to Los Angeles. The distance it travels in miles, d is 0.15 per second of time, t.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!