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vivado [14]
3 years ago
5

-2/3 a =12 give Brainly

Mathematics
1 answer:
aliya0001 [1]3 years ago
8 0

Answer:

a = -18

Step-by-step explanation:

-2/3 a =12

Multiply each side by -3/2 to isolate a

-3/2 * -2/3a = 12 * -3/2

a = -18

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5. Add together 1 metres + 76cm + 8cm giving your answer in metres. (a) 1.584m (b) 1.89m (c) 2.34m (d) 3.06m (e) 9.9m
USPshnik [31]

Answer:

1.84metres

Step-by-step explanation:

convert 76cm to metres

76/100=0.76m

convert 8cm to metres

8/100=0.08m

therefore we have,

1+0.76+0.08=1.84metres

8 0
3 years ago
Solve x-5y=-30, 3x+5y=10 show your work
marin [14]

1) x = 5y - 30  

2) x = - 1.6y + 3.3

<em>im assuming these are 2 different questions</em>

<h3>Explanation:</h3><h3>1)</h3>

Start with the equation:

x - 5y= -30

add 5y to both sides:

x = 5y - 30

Your answer is x = 5y - 30  

<h3>2)</h3>

Start with the equation:

3x+5y=10

subtract 5y from both sides:

3x = -5y + 10

divide by 3 to get x singular

x = - 1.6y + 3.3

Your answer is x = - 1.6y + 3.3

Hope this helps :)

6 0
3 years ago
Reflecting over the x-axis in words and formula
Ksivusya [100]

Answer:

Formula: (x, -y), when reflecting over the x-axis you keep the x-value the same, but change the sign of the y-value. For example: You have the original coordinates (3, 5), and if you reflect it over the x-axis it’ll be (3, -5).

4 0
3 years ago
How to round 141.999 to the nearest one
Sergeeva-Olga [200]

Answer:

It's 142

(✿◠‿◠)

If you have a 5 or more on the tenths place, then you make one go up to the next number.

7 0
3 years ago
Read 2 more answers
What's the error and can you explain why
Elina [12.6K]

Answer:

First part.

Explanation:

The first part is wrong. Because when you divide a number by a fraction, you will have convert it to multiply upside-down fraction but not the number that is divided :

\frac{ {x}^{2} - 4 }{5x}   \div  \frac{x + 2}{x - 2}

=   \frac{(x + 2)(x - 2)}{5x}   \times  \frac{x - 2}{x + 2}

=  \frac{ {(x - 2)}^{2} }{5x}

e.g

(1/2)÷5 = (1/2)×(1/5)

= 1/10

e.g

2÷1/4 = 2×4

= 8

(I hope you understand)

7 0
3 years ago
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