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
Lerok [7]
3 years ago
11

The weight of 10 identical samples of a substance is 0.1 pound. what is the weight of 1000 samples

Mathematics
2 answers:
Irina-Kira [14]3 years ago
8 0
The weight of 1000 samples is 10 pounds
Paul [167]3 years ago
7 0
\bf \begin{array}{ccll}
samples&lbs\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
10&0.1\\
1000&x
\end{array}\implies \cfrac{10}{1000}=\cfrac{0.1}{x}\implies x=\cfrac{1000\cdot 0.1}{10}

you could also look at it this way, 1000 samples is really 10 * 100, or 100 times 10, if 10 weight 0.1, then 100 times that will just be 100 * 0.1.
You might be interested in
How to solve 7+3=4+_
andrey2020 [161]
7+3=4+6 Both numbers equal 10
8 0
3 years ago
У=-3x+3<br> y = -9x + 15
julia-pushkina [17]

Answer:

(2, - 3 )

Step-by-step explanation:

Given the 2 equations

y = - 3x + 3 → (2)

y = - 9x + 15 → (2)

Substitute y = - 3x + 3 into (2)

- 3x + 3 = - 9x + 15 ( add 9x to both sides )

6x + 3 = 15 ( subtract 3 from both sides )

6x = 12 ( divide both sides by 6 )

x = 2

Substitute x = 2 into either of the 2 equations and solve for y

Substituting into (1)

y = - 3(2) + 3 = - 6 + 3 = - 3

solution is (2, - 3 )

8 0
3 years ago
Write a polynomial expression, in simplified form, that represents the AREA of the blanket and use the expression to evaluate th
pochemuha

Answer:

Polynomial expression that represents the area of blanket:

A(x)=(6x^2+5x-21)cm^2

If x=2: A(2)=13cm^2  

Step-by-step explanation:

The area of the rectangle can be calculated with the formula:

A=lw

Being l the lenght of the rectangle and w the width of the rectangle.

In this case, the lenght and the width are represented with:

l=(3x+7)cm

w=(2x-3)cm

Substitute them into  A=lw:

 A(x)=(3x+7)(2x-3)

Then:

Use Distributive property (Remember the Product of powers property: b^a*b^c=b^{(a+c)} ):

A(x)=(3x+7)(2x-3)\\A(x)=6x^2-9x+14x-21

Add like terms:

A(x)=(6x^2+5x-21)cm^2 (Simplied form)

Evaluate x=2:

A(2)=(6(2)^2+5(2)-21)cm^2\\A(2)=(6(4)+10-21)cm^2\\A(2)=(24-11)cm^2\\A(2)=13cm^2

6 0
3 years ago
How to find the missing values for each 45,45,90 o 30,60,90 triangle
Sedaia [141]
All three numbers have to have a equal multiple.
4 0
3 years ago
Please look at the image and help me! It’s geometry.
gogolik [260]

Answer:

1

Step-by-step explanation:

12x+x+4=17

13x=17-4

13x=13

x=1

3 0
3 years ago
Other questions:
  • In order to qualify for a role in a play, an actor must be taller than 64 inches but shorter than 68 inches. The inequality 64 &
    13·1 answer
  • At the library the average ratio of a hardbound books to paperback books on a shelf is 5:3. How many paperback books does 75 hav
    11·1 answer
  • Bookstore sells book in excellent condition for $2.50 and in fair condition for $0.50 . Write an expression for cost of buying x
    7·1 answer
  • What's the answer O-O reee
    11·2 answers
  • What is the slope of the line graphed on the coordinate plane?
    12·2 answers
  • A motorboat takes 3 hours to travel 108 mi going upstream. the return trip takes 2 hours going downstream. What is the rate of t
    8·1 answer
  • Solve the inequality<br>-6p&lt;12 <br><br><br>Ah this is due by tomorrow
    15·1 answer
  • Omg this is hard plz help
    5·1 answer
  • The median of the set of data with values 10,12,15,16,18,20 is?​
    13·2 answers
  • Can you do this one pls
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!