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Busola
Questions (10)
There are 42 students in a school1/3 of the population is made up of girls. How many boys are in the school
1 answer
209 views
Calculate the final centigrade temperature required to change 20 litres of gas at 120°C and 1 atmosphere to 25 litres at 2
8 answers
3,130 views
state the finctions of double wall,silver wall and cork sttoper -
0 answers
290 views
If €8200 is divided among A,B and B so that A's share is 2/5 of B's and B's is 3/4 of C's share, how much does C's get?
2 answers
635 views
An electric heater raises the temperature of 120g of water in a thin light vessel through 10K in 2mins, when placed in 70g of
3 answers
1,326 views
what mass of ice at -14'c will be needed to cool 200cm3 of an orange drink (essentially water) from 25'c to 10'c!
(specific
1 answer
1,042 views
calculate the specific heat capacity of the materials for which the heat supply, mass, and temperature rises are given below:
i)2
2 answers
1,570 views
Please help prepare a standard write up.
We would like to know more about you and the context in which you have grown up,
2 answers
520 views
An equilatetal triangle with the lengths of its sides given in term of a and b.
If the lengths are 4acm,3bcm and (a+b+c)cm. Find
8 answers
5,309 views
CuCO3=CuO +CO2.
Find the mass of 1mole of each substance taking part in the reaction. (Ar:Cu=64,C=12,O=16). When 31g of CuCO3 is
4 answers
5,410 views
Answers (6)
(35*2/7) = log√10 = 1/2
62-5x
My answer
I need workings
I need a solution not only the answer it is not a objective question
Mary=1/3*(x-8),Erin=(x-8),John=x 1/3*(x-8)+(x-8)+x=267 take the L.C.M=3 (x-8)+3(x-8)+3x=267*3 Remove brackets x-8+3x-24+3x=801 Collect like term x+3x+3x-8-24=801 7x-32=801 7x=801+32=833 X=833/7=119 Mary=1/3 (119-8)=37 Erin=119-8=111 John=119
