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2 years ago

0.5 +6.38 = 6.88 because 6.38 is precise to the hundredth digit, so the

Mathematics

1 answer:

Alika [10]2 years ago

8 0

Answer:

True- because 0.5 isnt written as 0.50 because its been simplified so the answer should be too and to simplify the answer 6.88 would be to round it to 6.9.

Step-by-step explanation:

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erik [133]

We have to find the mass of the gold bar.

We have gold bar in the shape of a rectangular prism.

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7 0

3 years ago

Solve the equation 7/z-1 = 9/z+4

algol [13]

Answer:

z is equal to 18.5

Step-by-step explanation:

When an equation is in the format a/b = c/d, the quickest way to simplify it is to cross multiply. Each side is multiplied by the other sides denominator, eliminating the division:

$\frac{7}{z-1} = \frac{9}{z + 4}\\7(z + 4) = 9(z - 1)\\7z + 28 = 9z - 9\\7z - 9z = -9 - 28\\-2z = -37\\z = 37/2\\z = 18.5$

So z is equal to 18.5

3 0

3 years ago