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DiKsa [7]
3 years ago
6

Algebra 2 urgent assistance.

Mathematics
1 answer:
DedPeter [7]3 years ago
5 0

1 + 2 + 3 + ... + n = \dfrac{n(n + 1)}{2}

7 + 14 + 21 + ... + 105 =

= 7(1 + 2 + 3 + ... + 15)

= 7(15)(16)/2

= 840

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Kylie drank 35% ofna 400-mL contanier of water.Eugenia drank 45% of a 350 mL container of water.who drank more?Explain how you k
Andrei [34K]
Let Kylie's container (which is 400ml) be 100%. She drank 35%. Proportion:
400ml - 100%
x ml    - 35%
So Kylie drank:
x=(400*35)/100=140 ml of water

Whole Eugenia's container (350ml) is also 100% and she drank 45%.
350ml - 100%
xml     - 45%
Eugenia drank:
x=(350*45)/100=157,5ml of water

Thus, Eugenia drank (157,5-140)=17,5 ml more than Kylie
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Step-by-step explanation:

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Read 2 more answers
3 − 1 = 5 + 10 = −5 1/2 Check whether the given value of is a solution to the equation. Justify your answer.
andrey2020 [161]

Answer:

x = -5\frac{1}{2} is the solution

Step-by-step explanation:

Given

3x - 1 = 5x + 10 --- Correct expression

x = -5\frac{1}{2}

Required

Determine if the given solution is correct

To do this, we simply solve for x in the given equation.

So, we have:

3x - 1 = 5x + 10

Collect like terms

3x - 5x = 1 + 10

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Divide both sides by -2

\frac{-2x}{-2} = \frac{11}{-2}

x = -\frac{11}{2}

x = -5\frac{1}{2}

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You're going to make x = 9. you're equation is h(9) = 4(9) + 5. This will give you your answer of 41.

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3 years ago
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