Ask question

Ask question

All categories

3 years ago

14

At a school the number of boy to girls is 11:9 there are 124 more boys than girls work out the total number of students at the s

chool

1 answer:

12345 [234]3 years ago

5 0

Answer:

1240

Step-by-step explanation:

the explanation is very long but I hope this is correct!

You might be interested in

247 students went on a field trip. six buses were filled and 7 students traveled in cars. How many students were in each bus ?

Nuetrik [128]

from all the 247 students, 7 went on by cars, meaning they didn't fit in the buses, so they students that went in the buses are 247 - 7 = 240.

now, we know there were 6 buses, so dividing 240 evenly by 6, 240/6 = 40.

4 0

3 years ago

An accident at an oil drilling platform is causing a circular-shaped oil slick to form. The volume of the oil slick is roughly g

Basile [38]

Answer:

$V(t)=0.0112\pi t^{2}$

Step-by-step explanation:

we have

$V(r)=0.07\pi r^{2}$ -----> equation A

$r(t)=0.4t$ -----> equation B

To find out (V of r)(t) substitute equation B in equation A

$V(r(t))=V(t)$

$V(t)=0.07\pi (0.4t)^{2}$

$V(t)=0.07\pi (0.16)t^{2}$

$V(t)=0.0112\pi t^{2}$

3 0

3 years ago

Help me pls I don’t under stand pls help

Elena-2011 [213]

your answer is D hope this helps and mark for brainlest

5 0

3 years ago

iren2701 [21]

The sum of the interior angles of a triangle is 180 degrees

2x-9+3x+x+3=180
6x-6=180
6x=186
x=31

A=2(31)-9
A=62-9
A=53

8 0

3 years ago

4(-2d-3)=12, someone please solve this for me asap

wlad13 [49]

4(-3 + -2d) = 12

(-3 * 4 + -2d * 4) = 12

(-12 + -8d) = 12

-12 + -8d = 12

-12 + 12 + -8d = 12 + 12

-12 + 12 = 0

0 + -8d = 12 + 12

-8d = 12 + 12

12 + 12 = 24

-8d = 24

d = -3

5 0

3 years ago