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gayaneshka [121]
3 years ago
8

Determine what number is 30% of 400.

Mathematics
2 answers:
Ad libitum [116K]3 years ago
8 0

Answer:

Your answer is 120

Step-by-step explanation:

First you have to multiply it:

30% * 400

Then you change to decimal:

W = .30 * 400

And then multiply that and you have your answer:

= 120

I hope this helps! Have a nice day!

~abelxoconda <3

Darya [45]3 years ago
6 0

Answer:

120

Step-by-step explanation:

Is means equals and of means multiply

W = 30% * 400

Change to decimal

W = .30*400

W = 120

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For every 5 pages in a book Fred reads, Lonnie reads 4 pages. In 1 hour, they read a combined total of 36 pages. How many pages
nydimaria [60]

Answer:

Hence the number of pages read by Lonnie is 16 pages when they read a combined of 36 pages.

Step-by-step explanation:

The table that can be formed by the rate at which they study the number of pages of a book is:

Fred     Lonnie       total

 5           4                9

 10          8               18

 15          12              27

 20         16              36

That means when they read a combined of 36 pages.

Then the number of pages read by Fred is 20 pages.

and the number of pages read by Lonnie is 16 pages.

(

Also it could be done as :

Let Fred reads 'x' pages.

so, the number of pages read by Lonnie is: (4/5)x

Hence,

x+(4/5)x=36

on solving this linear equation we have:

x=20

and (4/5)x=16

)

Hence the number of pages read by Lonnie is 16 pages when they read a combined of 36 pages.

3 0
3 years ago
A math book weighs 250 grams, a chemistry book weighs 200 grams, and a physics book weighs 250 grams. what is the total weight o
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plz thank me, it keeps me motivated to answer more of your questions :)
8 0
3 years ago
Each day for two workweeks (10 days total), George weighs 4 bags from that day’s production. If the average of the means is 14 o
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Answer:

a. 13.7084 oz.

Step-by-step explanation:

Formula for Lower Control Limit =

(LCL = x-bar - A²R-bar)

x - bar = 14 oz

A2 = 0.729

R - bar = 0.4 oz

= 14 - 0.729 × 0.4

= 14 - 0.2916

= 13.7084oz

7 0
3 years ago
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