3 years ago

Which expressions is equivalent -8.2-5

Mathematics

1 answer:

GuDViN [60]3 years ago

8 0

Answer:

-13.2

Step-by-step explanation:

-8.2-5 essentially means that you just have to add 8.2 and 5. (disregard the signs for a moment) if you add them you get 13.2 as both of these number have a negative sign just add it and here's your answer

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Read 2 more answers

If 9:7 is the ratio, there are here 116 more boys than girls how many total students are there

Natali5045456 [20]

Now, let's say there are "b" boys and "g" gals... ok... well, we know there are 116 more boys than gals..... so, if there are "g" gals then there must be "g + 116" boys.

$\bf \cfrac{boys}{girls}\qquad 9:7\qquad \cfrac{9}{7}\implies \cfrac{9}{7}=\cfrac{\stackrel{boys}{g+116}}{\stackrel{girls}{g}}\implies 9g=7g+812
\\\\\\
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what's the total class? well is g + b or g + ( g + 116).

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