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Tpy6a [65]
4 years ago
11

Ms. Johnson asked her class to write an equivalent

Mathematics
1 answer:
Anni [7]4 years ago
8 0
<span>Ahmad wrote the correct expression.
To prove that </span>7(2d + 3k - dk) - 7 is equal to 14d - 9 + 21k - 7dk + 2
Please check this solution:
7(2d + 3k - dk) - 7 = <span>14d - 9 + 21k - 7dk + 2
</span>7(2d + 3k - dk) - 7 = 14d + 21k - 7dk -9 + 2
7(2d + 3k - dk) - 7 = 14d + 21k - 7dk -7

Get the common variable which is 7.
7(2d + 3k - dk) - 7 = 7(2d + 3k - dk) - 7

For checking, we can simplify the equation...
from 7(2d + 3k - dk) - 7 = 14d - 9 + 21k - 7dk + 2
We simplify it to:
7(2d + 3k - dk) - 7 = 14d + 21k - 7dk -7
7 * 2d = 14d
7 * 3k = 21k
7 * - dk = -dk

Therefore, 
7(2d + 3k - dk) - 7 is equal to 14d + 21k - 7dk -7
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Last year, 9 companies decided to include their coupon in a local coupon pack. Each company had to print 589 copies of their cou
Bad White [126]

Answer:

5301

Step-by-step explanation:

There are 9 companies that needed to print 589 coupons each. Multiply the two numbers:

9 * 589 = 5301

7 0
3 years ago
Plzzzz help me on this
Grace [21]
Answer: 228 feet squared

How: To get the area of the entire field, multiply 25•36 to get 900. To find length of the area inside the path, you have to subtract 2 feet from both sides of 25, which is also 4 feet, to get 25-4=21. To find the width of the area inside the path, you have to subtract 2 feet from both sides of 36, which is also 4 feet, to get 36-4=32. You multiply 21•32 to get 672, which is the area of the field inside of the path. To find the area of the path, you subtract the total area of the field and the path together, which is 900, by 672 to get 228 feet squared.
7 0
3 years ago
Read 2 more answers
The sum of 2 times a number and 4 equals 5
trasher [3.6K]

I need more information

3 0
4 years ago
Find the equation of a line parallel to y - 5 = 6x - 10 that passes through the point (4, 10). (answer in slope-intercept form)
UNO [17]
Our equation is y = 6x - 5 when simplified. In order to be parallel, the equation for the answer must also have a slope of 6x. This rules out options C and D.

Now just plug in 4 for the x-value for each one to get your answer. A little mental math and I can already tell you it's option A.

6(4) - 14 = y
24 - 14 = y
10 = y

10 = 10

Whereas for option B:

6(4) + 14 = y
24 + 14 = y
38 = y

38 ≠ 10

Option A is your answer. 




5 0
3 years ago
People leaving a movie were randomly asked their age. The results are show below. What graph would best display the data, if you
goldenfox [79]

The graphs to use are box plots, histogram and dot plots

<h3>How to determine the graph?</h3>

From the question, the most important factors are:

  • Shape of distribution
  • Spread of data

Using the box plots, histogram and dot plots, one would see the shape and the spread.

While the stem and leaf plot would show specific data values

Read more about graphs at:

brainly.com/question/24461724

#SPJ1

7 0
2 years ago
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