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Dvinal [7]
3 years ago
6

How can you write the expression 7(b-2) in words?

Mathematics
1 answer:
Karolina [17]3 years ago
6 0
E. The product of 7 and the difference of b - 2 :^)
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The ratio of cars to trucks is 8 cars to 36 trucks. If there are 9 trucks, how many cars are there?
solniwko [45]
Set up the proportion with the numbers on top equalling the cars and the numbers on the bottom representing the trucks.
\frac{8}{36} = \frac{c}{9}
c equals the number of unknown cars.
To solve the proportion, cross multiply (multiply 8 by 9 and 36 by c) and solve for c.
72 = 36c
Divide 36 from both sides to get the answer.
c = 2
If there are 9 trucks, there are 2 cars.
You can check this by dividing 2 by 9, and dividing 8 by 36. Since they both equal the same number, this answer is correct.

Hope this helps =)

8 0
3 years ago
Read 2 more answers
What is the surface area of the rectangular pyramid? m2<br> 8.8 m 9m 6m 2m?
WARRIOR [948]

Answer:

A=lw+l(w

2)2+h2+w(l

2)2+h2

Step-by-step explanation:

3 0
3 years ago
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The population of a city decreases by 1.2% per year. If this year's population is 177,000, what will next year's population be,
Vsevolod [243]

Answer:

Initial value

177000

Final value

174,876

Decrease

1.2%

Difference

-2,124

5 0
2 years ago
The perimeter of a rectangle is 20.2 CM and it's area is 24.4 cm squared what is its length and width
erma4kov [3.2K]

Answer:

Length of Rectangle = 4 cm    And

Width of Rectangle = 1.9 cm      

Step-by-step explanation:

Given as :

The perimeter of rectangle = 20.2 cm

The area of rectangle is 24.4 cm

Let the length be L

And width be w

Now Area of rectangle = Length × width  

Or,  24.4 = L × W

And Perimeter = 2 (Length + Width ) = 2 (L + W )

Or,   20.2         = 2(L + W )

Or , L + W = 10.1 cm                   ............ 1

Now, (L - W )²  = (L + W)² -4 LW

Or,   (L - W )²  = ( 10.1)² -4 (24.4)

I.e    (L - W )² = 4.41

Or , L - W = 2.1 cm                    .............. 2

SO , From 1 and 2

( L + W) + (L - W) = 10.1 cm - 2.1 cm

Or, 2L = 8

∴  Length = 4 cm

Again , Width = 4 cm - 2.1 cm = 1.9 cm

Hence   Length of Rectangle = 4 cm    And

             Width of Rectangle = 1.9 cm       Answer

6 0
3 years ago
With which information can you construct a unique rhombus?
Yakvenalex [24]
It has 4 equal sides, but it can be "squished" so all 4 angles are not equal
8 0
3 years ago
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