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2 years ago

The sum of three consecutive even numbers is 312. What is the value of the smallest number?

Mathematics

1 answer:

andrezito [222]2 years ago

4 0

Answer: 102

Step-by-step explanation:

Let the numbers be a, a+2 and a+4. Since the sum of three consecutive even numbers is 312, this will be:

a + a+2 + a+4 = 312

3a + 6 = 312

3a = 312 - 6

3a = 306

a= 306/3

a = 102

Therefore, the smallest number is 102.

Other numbers are 104 and 106.

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Could someone please help answer this, please no spam, will give brainliest, thank you!

Jobisdone [24]

Answer:

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Step-by-step explanation:

$\frac{-1}{5} x+1$

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Simplify

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Multiply both sides by -1, which reverses the inequality also

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2 years ago

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tiny-mole [99]

Answer: Solve for

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Step-by-step explanation:

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2 years ago

Read 2 more answers

11.3 - p divided 2.8=1.5

raketka [301]

$11.3-\frac{p}{2.8}=1.5$

First you subtract by eleven point three (11.3) from both sides of equation form.

And it gave us ⇒ $11.3-\frac{p}{2.8}-11.3=1.5-11.3$ .

Then you simplify by equation.

And it gave us ⇒ $-\frac{p}{2.8}=-9.8$ .

Next, you multiply by two decimal eight (2.8) from both sides of equation form.

And it gave us ⇒ $2.8(-\frac{p}{2.8)}=2.8(-9.8)$ .

And then simplify by equation.

$-p=-27.44$ .

Next, you divide by negative one (-1) from both sides of equation form.

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And finally simplify by equation form.

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Hope this helps!

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2 years ago

Determine which answers are solutions of the inequality 2x + 1 > 5

svet-max [94.6K]

Answer:

A and E

Step-by-step explanation:

2x + 1 > 5

So, subtract the 1 from both sides,

2x > 4

x > 2

So anything greater than 2...

7 and 3 are greater than 2.

A and E.

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2 years ago

In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Erica has s

schepotkina [342]

Answer:

Erica must score between 30 and 66 to obtain a grade average of C.

Step-by-step explanation:

We are given the following ion the question:

Erica's score:

86, 79, and 85

To get a grade C, the average score of Erica must lie between 70 and 79.

Formula:

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

Let x be the score on fourth test.

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Thus, Erica must score between 30 and 66 to obtain a grade average of C.

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2 years ago