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Phantasy [73]
3 years ago
15

Solve the equation. 6n + n + n - 3 = 4 + 3n + n + 1

Mathematics
2 answers:
Nitella [24]3 years ago
7 0
1. Combine like terms.
8n - 3 = 5 + 4n \\ (8n - 3) + 3 = (5 + 4n) + 3 \\ (8n) - 4n = (8 + 4n) - 4n \\ 4n = 8
Now divide both sides by 4 to get:
n = 2
Alborosie3 years ago
4 0
So first add the common terms
13n
And then add 3,4and 1 equals 8
And then divide 8 by 13 and u get 0.615
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Help 0.06 is 10 times as much as
Ipatiy [6.2K]

Answer:

0.06 is 10 times as much as 0.006

Step-by-step explanation:

let the number be x

as per the condition 0.06 is 10 times as much as x.

Solve for x:

10 times as much as x represents as 10 \times x

Then;

0.06 = 10 \times x                 ......[1]

Division property of equality states that you divide the same number to both sides of an equation.

divide by 10 to both sides in equation [1];

\frac{0.06}{10} = \frac{10x}{x}

Simplify:

x = 0.006

Therefore, 0.06 is 10 times as much as 0.006


3 0
3 years ago
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Solve using the quadratic frmula 2x^2-5x=3
Mnenie [13.5K]

2x2−5x=3

I think the first step would be to

Subtract 3 from both sides

2x2−5x−3=3−3

2x2−5x−3=0

Then

For this equation: a=2, b=-5, c=-3

2x2+−5x+−3=0

Lastly you would

Use quadratic formula with a=2, b=-5, c=-3

I think your answer would then have to be...

x = 3 or x =  −1 /2

4 0
3 years ago
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Tony buys a washing machine
Lorico [155]

Step-by-step explanation:

£480 = 120% (after adding the 20% VAT).

we want to know how much 100% is.

he do we get from 120% to 100% ?

first the formal long way

£480 = 120%

1% = 120%/120 = 480/120 = £4

100% = 1% × 100 = 4×100 = £400

once you understand this mechanism, you can apply the direct shortcut :

£480 / 1.2 = £400

as a multiplication with 100/120 is the same as a division by 120/100, which is 1.2.

and what we did at the beginning in long form was nothing else than

£480 × 100/120 = 480 × 10/12 = 480 × 5/6 = £400

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viva [34]

Check image below for answer!

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REY [17]

Step-by-step explanation:

I think the answer is like this

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