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bekas [8.4K]
3 years ago
11

2.5(12.75x + 24.50) = 188.75

Mathematics
2 answers:
In-s [12.5K]3 years ago
7 0
X=4






That’s the answer
mrs_skeptik [129]3 years ago
5 0

Answer:

Step-by-step explanation:

First, in order to get rid of the parenthesis, you need to multiply 2.5 with whatever is in the parenthesis.

Multiply 2.5 on each side of the equation like this:

(12.75 x 2.5) (24.50 x 2.5) =188.75

Once you're finished, you should get 61.25 and 31.875x =188.75

Now in order to find 'x' you will need to subtract 61.25 to each side of the equation like this:

61.25 - 61.25 = 0

188.75 - 61.25 = 127.5

So now your equation should look like this:

31.875x = 127.5

You have to divide 31.875 by each side now.

Once you divide them, your final answer should be 4.

so x = 4.

I really hope this helps! ^^

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Is f(x)=5x^2+6x^3 a polynomial function​
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Degree Name Example
0 constant 11
1 linear 4x + 7
2 quadratic 3x2 + 4x + 5
3 cubic 4x3 + 3x + 7
4 quartic 3x4 + 2x2 + 4
5 quintic x5 + 3x + 1
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Review of synthetic substitution
To use synthetic substitution, do the following:
1) Write the polynomial in descending order.
2) Make sure any missing terms are replaced with zero!
3) Bring down the leading coefficient.
4) Multiply by the divisor and add to the next term.
5) Repeat the process until the last coefficient is reached.

Example
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2| 2 -9 0 27
4 -10 -20
2 -5 -10 7 The value of P(2) = 7, the last number!!
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4 years ago
Add the numbers 197,203 and 423 in two ways ​fast​
mr Goodwill [35]

Answer:

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<u>Method 1</u>

Break the three numbers into hundreds, tens and units, then add these separately (starting with the units)

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203 = 2 hundreds, 0 tens, 3 units

423 = 4 hundreds, 2 tens, 3 units

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Tens: 9 + 2 = 11 tens = 110

Hundreds: 1 + 2 + 4 = 7 hundreds = 700

Add these together: 700 + 110 + 13 = 823

<u>Method 2</u>

First add 203 to 197:

Borrow the 3 from 203 and add it to 197:  197 + 3 = 200

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Now add 423 to 400:  400 + 423 = 823

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