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aleksklad [387]
4 years ago
7

Are the two expressions equivalent when x=4? 4(2+3x) 8+12x

Mathematics
1 answer:
enot [183]4 years ago
5 0

Answer:

Yes

Step-by-step explanation:

To solve, evaluate each equation when x = 4.

Rewrite: 4[2 + 3(4)]

Multiply: 4(2 + 12)

Add: 4(14)

Multiply: 56

Final answer: 56

Then,

Rewrite: 8 + 12(4)

Multiply: 8 + 48

Add: 56

Final answer: 56

Yes, both equations are equivalent.

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Pretest: Unit 5 Question 12 of 21 Use the substitution method to solve the system of equations. Choose the correct ordered pair.
Gala2k [10]

Answer:

(10, - 9 )

Step-by-step explanation:

Given the 2 equations

y = - 2x + 11 → (1)

y = - 3x + 21 → (2)

Substitute y = - 2x + 11 into (2)

- 2x + 11 = - 3x + 21 ( add 3x to both sides )

x + 11 = 21 ( subtract 11 from both sides )

x = 10

Substitute x = 10 into either of the 2 equations and evaluate fir y

Substituting into (1)

y = - 2(10) + 11 = - 20 + 11 = - 9

solution is (10, - 9 )

3 0
3 years ago
Lincoln invested $440 in an account paying an interest rate of 5\tfrac{7}{8}5 8 7 ​ % compounded continuously. Robert invested $
Sidana [21]

Answer: $34

Step-by-step explanation:

5 0
3 years ago
Kasey has 8 packages of gelatin. She plans to fill molds that each take 1 1/3 packages of gelatin. Each mold can be divided into
Ipatiy [6.2K]

if in total Kasey has 8 packaged of gelatin and it takes 1 1/3 for each mold which equals 6 servings than you could work it out as

8 divided by 1 1/3=6.015 since its not a whole number than you'd want to go down to just 6 resulting in Kasey creating 6 molds

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6 0
4 years ago
-0.615, -5/8, -0.62 least to greatest
ludmilkaskok [199]

Answer:

-5/8,  -0.62, -0.615

Step-by-step explanation:

For -5/8, dividing -5 by 8 will result in -0.63, that's why it's the least (the farthest negative number from 0).

Next is -0.62

Since -0.615 isn't rounded up to the nearest hundredths, it is the greatest because it's closest to 0.

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3 years ago
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Step-by-step explanation:

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