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
Alecsey [184]
3 years ago
10

The table shows the cost of different numbers of yards of the material that Marnie wants to buy. Marine needs 3 yards of the mat

erial. What is the cost?

Mathematics
2 answers:
valentinak56 [21]3 years ago
7 0
It would cost $14.04. The equation for this would be y = 4.68x. If you multiply 3 by 4.68, you would get 14.04.
Liula [17]3 years ago
4 0

Answer:

$14.04

Step-by-step explanation:

Let

x = yards of material

y = cost

The is a linear relationship between y and x that can be represented through the following equation.

y = m.x

where,

m is the slope, representing the cost per yard

If we have any 2 points (x₁, y₁) and (x₂, y₂), we can calculate m using the following expression.

m = y₂ - y₁ / x₂ - x₁

Let's use the first 2 points.

m = ($28.08 - $23.40)/ 6 yard - 5 yard = $4.68/yard

The final equation is

y = $4.68/yard . x

If Marnie wants to buy 3 yards (x = 3 yard),

y = $4.68/yard . 3 yard = $14.04

You might be interested in
What is the value of the digit five in this number 58
vlada-n [284]
The five is in the tenth place so it is 50
3 0
3 years ago
Read 2 more answers
E
Allushta [10]

Answer:

Step-by-step explanation:

We can use Hypotenuse Theorem for this:

For triangle ABC,

AC²=CB²+BA²

9²=CB²+3²

Switch the sides

-CB²=3² -9²

-CB²= 9-81

-CB²= -72

the signs cut each other

CB²=72

the square changes sides

CB=√72

CB= 8.49 cm

Now triangle CBD

We have the length of CB but not the other two whereas we have the angle

It will be sin

As we know sin= O/H

Here O is CB whereas H is CD

Put the values

sin 50= 8.49/H

H= 8.49 ÷sin 50

Calculate

H=11.1 cm

As we know H is CD so CD is 11.1 cm

Hope it helps

8 0
2 years ago
4232 divided by 18 also estimate
igomit [66]
4232 divided by 18 equals 235.1
6 0
3 years ago
When numbers are very small or very large, it is convenient to either express the value in scientific notation and/or by using a
finlep [7]

\boxed{ \ 5.0 \times 10^{-3} \ grams \rightarrow 5.0 \ milligrams \ }

<h3>Further explanation </h3>

Scientific notation represents the precise way scientists handle exceptionally abundant digits or extremely inadequate numbers in the product of a decimal form of number and powers of ten.  

Put differently, such numbers can be rewritten as a simple number multiplied by 10 raised to a certain exponent or power. It is a system for expressing extremely broad or exceedingly narrow digits compactly.

Scientific notation should be in the form of  

\boxed{ \ a \times 10^n \ }

where  

\boxed{ \ 1 \leq a \ < 10 \ }

The number "a" is called "mantissa" and the exponent "n" the order of magnitude.

The exponent tells about the size of the number.

  • A positive exponent indicates a number greater than or equal to 1.
  • A negative exponent indicates a number between 0 and 1.

From the key questions asked, we face the standard form of 0.005 grams which will be converted into scientific notation.  

0.005 = \frac{5}{1,000}

  • The coefficient (or mantissa) is 5, which has fulfilled the interval 1 ≤ a < 10.  
  • The denominator consists precisely of three zero digits.

Hence, 0.005 grams is written in scientific notation as  \boxed{ \ 5.0 \times 10^{-3} \ grams \ }

Because 1 milligrams is equal to 10^{- 3} grams, then

5.0 \times 10^{-3} \ grams \times \frac{1 \ milligrams}{10^{-3} \ grams}

Hence, 0,005 grams is 5.0 milligrams.

In science, we frequently must deal with extremely small or incredibly large quantities. For a typical example, one of the recognized limitations of the microwave frequency is 300,000,000 Hz with a photon energy of 0.00000124 eV. They with many zeros can be impractical to work with, so scientists properly implement scientific notation.

The inverse of scientific notation is the standard form. To promptly change scientific notation into standard form, we reverse the process, move the decimal point to the right or left. This expanded form is called the standard form.

\boxed{ \ 3.0 \times 10^{8} \ Hz \ \rightarrow 300,000,000 \ Hz \ or \ 300 \ MHz \ }

\boxed{ \ 0.00000124 \ eV \ \rightarrow 1.24 \times 10^{-6} \ eV \ or \ 1.24 \ \mu eV \ }  

<h3>Learn more</h3>
  1. How is 0.00069 written in scientific notation? brainly.com/question/7263463
  2. How to explain 3,482,000,000 in scientific notation brainly.com/question/231855
  3. Convert the number expressed in standard form to scientific notation brainly.com/question/10436883

Keywords: a pain-relieving pill has a mass, 0.005 grams, express, written, in scientific notation, milligrams, expanded form, exponent, base, standard form, mantissa, the order of magnitude, power, decimal, very large, small, figures, abundant digits, inadequate

5 0
3 years ago
Sue and Cathy have $20 left for a cab fare home.the cab fare is $3 per mile plus a $2 fixed charge.what is the maximum number of
PIT_PIT [208]

Answer:

They would by able to go 4 miles.

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Jack works for a company that pays him $20 an hour. His normal workday does not exceed 8 hours. After working 8 hours in a day,
    13·1 answer
  • Lines that appear tangent are tangent. What is the value of x?
    5·1 answer
  • Olivia and her three siblings bring a sack lunch to school each day, consisting of a bagel, an apple, a cookie, and a juice box.
    6·2 answers
  • 0.9(x+1.4)-23+0.1x=1.6
    12·1 answer
  • The admission to a local carnival is $8.25 per person and $1.50 for each ride. How much more will it cost a group of 3 friends t
    14·2 answers
  • Please answer the question
    12·2 answers
  • What is the value of 2.3​
    6·1 answer
  • How can you describe the effect of a dilation on coordinates using an algebraic representation?
    5·2 answers
  • Help plssssssssss I don’t wanna fail
    8·1 answer
  • Grace is having a slumber party and wants to download some movies to watch with her friends. Each movie download costs $4.99. If
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!