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ANTONII [103]
3 years ago
15

Seventy pupils (37 boys and 33 girls) are divided into two groups, with forty pupils in Group I and thirty pupils in Group II. H

ow many more boys are there in Group I than there are girls in Group II?
Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0

Answer:

7 more boys

Step-by-step explanation:

Given

Total = 70

Boys = 37

Girls = 33

Group\ 1 = 40

Group\ 2 = 30

Required

Number of more boys than girls in group 2

Represent the number of boys in group 1 with B and the number of girls with G.

So:

B + G = 40

Make G the subject

G = 40 - B

The number of girls in group 2 will be:

Total number of girls (33) - number of girls in group 1(40 - B)

So, we have:

Group\ B\ Girls = 33  -(40 - B)

Group\ B\ Girls = 33  -40 + B

Group\ B\ Girls = -7 + B

Group\ B\ Girls = B-7

<em>This means that there are 7 more boys than girls</em>

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The Sognefjord is the deepest fjord in Norway at 1,308 metres (4,291 ft) If a submersible floating on the surface was to dive ve
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Answer:

36 minutes

Step-by-step explanation:

Depth of the fjord = 1308 m

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6 0
3 years ago
One cube has an edge length 5 cm shorter than the edge length of the second cube. The volume of the smaller cube is 216 cm?. Wha
VLD [36.1K]

Answer:

The volume of the  larger cube is V=1,331\ cm^3

Step-by-step explanation:

Let

x ---> the length of the smaller cube

y ---> the length of the larger cube

we know that

the volume of a cube is equal to

V=b^3

where

b is the length side of the cube

we have

x=y-5 ----> equation A

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216=x^3

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4 0
4 years ago
When 13 is subtracted from the sum of 2 consecutive numbers the answer is 18 what are the consecutive numbers?
Hitman42 [59]
Let x = the first number
x+1 = the second number

The sum of our two numbers is therefore:  x + (x+1)

When you subtract 13 from the above you get 18 left over.

So our equation is:

x + (x+1) - 13 = 18

Now we can just solve for x:

x + (x+1) = 31

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x = 15

So our first number is 15 and our second number must be 16.
7 0
4 years ago
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