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arlik [135]
2 years ago
8

(-1 – 3n) + (6 + 2n ) Help?

Mathematics
1 answer:
jeka942 years ago
5 0
The solution is -n+5.
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The weight of an object is equal to 3\4 of its own weight plus 3\4of a pound. What is the weight?
Phoenix [80]

Answer:

The weight of the object is 3 kg.

Step-by-step explanation:

<u>Step 1: </u>

Let object weight be x kg.

Now, as per the available data,

3/4 kg + 3/4 (x kg) = x kg

<u>Step 2: </u>

3/4 (1 + x) = x

1 + x = 4x/3

1 = x (4/3 - 1)

x = 1 / (1/3)

x = 3

Weight of Object is 3 kg.

<u>Step 3: </u>

Let's check if this value satisfies the first equation.

3/4 + 3/4 x 3 = 3/4 + 9/4 = 12/4 = 3

Hence proved.

8 0
3 years ago
A bag of marbles consists of 14 blue marbles and 7 red marbles. If you reach into the bag and choose 2 marbles,
julsineya [31]

Answer:

chances are 10.5

Step-by-step explanation:

8 0
2 years ago
A new sports stadium has 5,900 seats. Elena said that she could rename the
allsm [11]

Answer:

If your doing 4 thousand and some hundreds then the answer is 19 hundred, But if your doing just hundreds the answer is 59 hundreds.

Step-by-step explanation

5900/100 = 59

3 0
2 years ago
+5 pts Answered The table gives a few (x,y) pairs of a line in the coordinate plane. what is the x-intercept of the line?
bagirrra123 [75]

Answer:

Here maybe this image might help.

5 0
3 years ago
Help please! Could you explain it too?
Olegator [25]

Answer:

a. Not proportional

b. Proportional;

k = ⅞

Step-by-step explanation:

A proportional relationship is usually represented in the format, y = kx. k here represents constant of proportionality. This shows that x and y are directly proportional.

a. y = -2x + 9 is not a proportional equation.

b. y = ⅞x is a proportional equation.

Constant of proportionality: k = ⅞

8 0
2 years ago
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