Work From Home

Elizabeth Kannemeyer asked:


Hey guys im bad at math and have a test coming up,
the teacher gave a rivision sheet with the following questions
ive done them but not sure if my answers are right.
so ive pasted the questions here to see other peoples working out and answers thanks guys!

Calculate the simple interest on the following amounts:

a) $200 borrowed at %5 p.a interest for 2 years

b) $500 borrowed at %7.5 p.a interest for 5 years

c) $1500 borrowed at %11 p.a interest for 7 years

Rebecca has recently bought a $1500 car. She had a cash deposit of $3000 and has borrowed the remainder. A car loan from the State bank undertaken by Rebecca is t be repaid monthly over the next 4 years. The simple interest rate is 4.5% p.a

Calculate her monthly repayments.

A real estate agent recieves 1% commision on the first $80, 000, 2% on the next $100, 000 and then 2.5% on the remaining value.
Calculate the commission earned on the following sales ;

a) a flat sold for $78 000

b) A townhouse sold for $165 000

c) A house sold for $370 000

Express:

a) 0.8 as a fraction in simplest form.

b) 0.85 as a percentage

c) 2/13 as a decimal correct to 3 decimal places

d) 95% as a fraction in simplest form

e) 7/9 s a percentage, correct to 2 d.p

f) 0.594 as a fraction, in simplest form

g) 4/9 as a recurring decimal

Calculate:

a) 12 x - 5 =
b) 15 x 43 x - 7 =
c) 2/13+3/5 =
d) 43% of $7800
e)2/3+5/8-1/4 =
f) 0.8947 x 6328 = (to 2 decimal places)
g)5/9 of $19590 =

Round off to the nearest 10;
a)6626
b)975188
c)13355404

Round off to the nearest 100;
a)6626
b)975188
c)13355404

Round off to the nearest 1000;
a)6626
b)975188
c)13355404

Calculate:

a) the price increase of 15% for a TV which is currently $975
b) the price increase of 35% for a jacket which is currently $1175
c) the discount of 12.5% fora surround sound system which is currently $5895
d) A price increase of 37.5% for a digitial camera which is currently $1375