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ioda
2 years ago
15

Match the following sentences on the left with their algebraic expression on the right.

Mathematics
2 answers:
crimeas [40]2 years ago
7 0

a. The product of 5 and the sum of a number and 8

Product means multiplied, so that means 5 multiplied by some number plus 8, thus, 5(x+8)

b. A number less than 12

12-x would equal less than

c. The product of five and a number divided by 2

Again, product means multiplied, so its saying 5 times something, all divided by 2, thus, 5x/2

Please give brainliest :) hope this helps!

Kay [80]2 years ago
7 0

Answer:

A number less than twelve = 12 - x = b

The product of five and a number divided by two = 5x/2 = c

The product of five and the sum of a  number and eight = 5(x+8) = a

Step-by-step explanation:

<u>A number less than twelve</u>

12 minus a number

12 - x

<u>The product of five and a number divided by two </u>

A number times 5 divided by 2

5x/2

<u />

<u>The product of five and the sum of a  number and eight </u>

A number plus 8 times 5

(x+8)*5

5(x+8)

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nirvana33 [79]
Ok , with that information we can write the equations
x + y = 6
5x + 4y = 28

Where x = how many people ordered chicken
and y = how many people ordered egg salad

Through elimination , we can set one of the variables in both equations equal so we can eliminate it :

(4)x + (4)y = (4)6
5x + 4y = 28

4x + 4y = 24. equation 1
5x + 4y = 28. equation 2

Now we can subtract the second equation by the first equation and isolate one variable:
equation 2 - equation 1

5x - 4x + 4y - 4y = 28 - 24

x = 4

Now that we discovered our x value ( How many people ordered chicken salad ) , we can apply it to one of the equations and discover y ( how many people ordered egg salad)

x + y = 6
x= 4
4 + y = 6

We can shift 4 to the other side of the equation by subtracting 4 from both sides of the equation:
4 - 4 + y = 6 - 4
y = 2

x=4 and y=2

So the awnser is :
4 people ordered chicken salad and 2 people ordered egg salad!

I hope you understood my brief explanation!!

p.s if you want to know how to use another method to solve these problems ( Substition) , just let me know in a comentary down here
5 0
3 years ago
f a storm window has an area of 400 square inches, what are the dimensions if the window is 12 inches wider than it is high (w x
anzhelika [568]
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astra-53 [7]

Answer:

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Step-by-step explanation:

6 0
3 years ago
I need some help with math
Valentin [98]

Answer:

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Step-by-step explanation:

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3 years ago
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vovikov84 [41]

9514 1404 393

Answer:

  x = 23.1

Step-by-step explanation:

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Multiplying by 14, we get ...

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4 0
2 years ago
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