In a class ,ratio of the number of girls to boys is13:7 , find the percentage of boy

1 answer:

5 0

I’m pretty sure it’s 35% of boys in the class cuz 13+7=20 which is the total number of students in the class and 20x.35=7

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Write 6.58 x 10power<br> 8 in standard form

Nataly [62]

Answer:

658000000

Step-by-step explanation:

It would be 658000000 because of this process ⬇

=6.58 ⨉ 10^8

=6.58 ⨉ 100000000

=658000000 (You move the decimal to the right because you are multiplying)

Hope it helps and please do mark it as Brainliest if possible!!! Good Luck!!!

3 0

3 years ago

Using each of the digits 2 through 5 only

Norma-Jean [14]

Answer:

52, 43

Step-by-step explanation:

the first instinct might be to make the first number as big as possible : 54

that leaves for the second number 2 and 3, and the largest combination here is 32 (larger than 23).

54×32 = 1728

but, the area of a rectangle (and that is what we are calculating here) is the larger, the closer the lengths of its side are.

so, a bigger difference between length and width creates a smaller area, than a smaller difference between length and width for similar lengths.

so, what if we sacrifice just a little bit of the length, and make it 53 ? that opens up 4 for the second number, giving us 42 as width. they are much closer to each other with still very similar length.

53×42 = 2226

you see ? much bigger.

let's experiment further and pick 52 as length.

that gives us 43 as width.

52×43 = 2236

and again a little bit closer and with bigger result.

you see, in the previous case we "added" comparably to this last case a 42 (53×42 instead of 52×42), and in the last case we added a 52 (52×43 instead of 52×42) creating the difference of 10.

but of course, this only works, if we don't decrease the length too much.

6 0

3 years ago

Read 2 more answers

In 3-8, find the missing side length of each right triangle. 50yd.<br> 30yd.

denis23 [38]

Hi! so you didn’t let us know which side length is missing and it kind of matters so i’ll attach an image so you can just copy the one that looks most like yours.