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melomori [17]
3 years ago
14

How do you solve -3(2/5x-2)=18

Mathematics
1 answer:
stira [4]3 years ago
4 0

-3(2/5x-2)=18

multiply -3 by 2/5 and my -2

-6/5x + 6 = 18

subtract 6 from each side

-6/5x = 12

divide by -6/5, multiply 12 by -5/6

x = -10

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Find the difference, –8 – (–5). Then check your work by writing the equivalent addition sentence.
pav-90 [236]

Answer:

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Step-by-step explanation:

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4 0
2 years ago
(a) Work out the reciprocal of 1.25
Oxana [17]

Answer:

0.8 OR \frac{4}{5}

Step-by-step explanation:

The reciprocal of any number is the number that it multiplies by to equal 1.

The reciprocal can be found by simply converting the number into a fraction and then 'flipping' the fraction as any number multiplied by its reciprocal is 1.

E.g.

No. X/Y * Y/X (its reciprocal) = 1

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So, to find the reciprocal of 1.25,we should first convert 1.25 to a fraction.

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\frac{125/25}{100/25}=\frac{5}{4}

Now we just flip 5/4 to get our reciprocal:

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Test: 0.8 * 1.25 = 1

The reciprocal of 1.25 (\frac{5}{4}) is 0.8 (\frac{4}{5}).

Hope this helped!

8 0
3 years ago
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