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3 years ago

What value of n makes this equation true? n-2.3=17

Mathematics

2 answers:

MA_775_DIABLO [31]3 years ago

7 0

n-2.3=17

The first step is to "isolate" your variable (n). To isolate your variable means to make it so that there is just n on one side of the equal sign.

To do that, you must use inverse operations and add 2.3 to each side of the equation:

n-2.3=17

+2.3 +2.3

n=17+2.3

The next step is to just simplify:

n=17+2.3

n=19.3

Hope this helps!!!

juin [17]3 years ago

4 0

Hey there!

n-2.3= 17

Add 2.3 to both sides. (always do the inverse)

n=19.3

I hope this helps!

~kaikers

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Answer:

Step-by-step explanation:

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Before Gabriel started Cesar would have travelled for 4 hours

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3 years ago

Assume that y varies directly with x. If y = -5 when

steposvetlana [31]

Answer:

Thus, the value of x = -36 when y = 15

Step-by-step explanation:

We know that if y varies directly with x, we can express the relationship such as

y ∝ x

y = kx

k = y/x

where 'k' is called constant of variation.

Given

y = -5

x = 12

Using the equation

k = y/x = -5/12

Thus, the value of k = -5/12

Finding x when y = 15

y = 15

k = -5/12

substituting y = 15 and k = -5/12 in the equation

y = kx

15 = -5/12 (x)

15×12 = -5x

180 = -5x

divding both sides by -5

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Thus, the value of x = -36 when y = 15

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3 years ago

Your plan was to be on the road by 9 A.M. but you did not leave the garage until 10 A.M. You then drove with the cruise control

Wittaler [7]

Answer:

The average speed over the time interval from 9 A.M. to noon was of 33.33 mph.

Step-by-step explanation:

The average speed is given by the following equation:

$v = \frac{d}{t}$

From 10A.M. to noon.

You traveled at 50mph during 2 hours. So how long you traveled?

$50 = \frac{d}{2}$

$d = 50*2$

$d = 100$

You traveled 100 miles.

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From 9 A.M. to 10 A.M, you did not travel.

From 10 P.M. to noon, 100 miles.

So 100 miles during 3 hours.

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The average speed over the time interval from 9 A.M. to noon was of 33.33 mph.

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3 years ago

X*2+1=10 then x=? Tell me the value of x

Trava [24]

Answer:

Step-by-step explanation:

$x \times 2 + 1 = 10$

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$2x = 10 - 1$

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Calculate

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Hope this helps..

Best regards!!

6 0

2 years ago

Which equation demonstrates the additive identity property?

Mrrafil [7]

Answer:

Step-by-step explanation:

We first need to simplify the expression removing parentheses

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Our Total expanded term is 287o + 164o

Simplify 41o(7 + 41): Distribute the 41o to each term in (7+41)

41o * 7 = (41 * 7)o = 287o 41o * 41 = (41 * 41)o = 1681o

Our Total expanded term is 287o + 1681o

Our updated term to work with is (7 + 4) + (7 - 41) = 14©(7 + 4) + 0 = 7 + 287o + 164o(1) = 7 + 287o + 1681o + ( - 7 - 41) = 0

We first need to simplify the expression removing parentheses

Simplify 164o(1): Distribute the 164o to each term in (1)

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Our updated term to work with is (7 + 4) + (7 - 41) = 14©(7 + 4) + 0 = 7 + 287o + 164o = 7 + 287o + 1681o + ( - 7 - 41) = 0

Step 1: Group variables: We need to group our variables (7 and 14©(7. To do that, we subtract 14©(7 from both sides (7 - 14©(7 = 14©(7 - 14©(7

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3 years ago