MATHEMATICS HIGH SCHOOL

Use a calculator to work out
63,789 + 72,983 - 49,367
Give your answer to 2 s.f.
Use a calculator to work out 63,789 + 72,983 - - 1

Answers

Answer 1
Answer:

Answer:

87405

Step-by-step explanation:

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A bag contains pennies, nickels, nickels, and nickels. There are 50 coins in total. Of the coins, 14% are pennies and 34% are dimes. There are 6 more nickels than pennies. How much money does the bag contain?

Answers

answer:

8 pennies,16 dimes,13 nickels,13 quarters

Step-by-step explanation:

total number of coins = 50

16% are pennies

16% of 50

16/100 x 50=(16x50)/100=800/100=8

Pennies = 8

32% are dimes

32% of 50

32/100 x 50=(32x50)/100=1600/100=16

Dimes = 16

5 more nickels than pennies

Pennies = 8

nickels = 8 + 5 = 13

nickels = 13

8+16+13=37

50 - 37 = 13

13 quarters

pennies = 8, dimes = 16, nickels = 13, quarters = 13

Make r the subject of the formula in I=E/R+r​

Answers

Step-by-step explanation:

I = (E )/( R) + r

I - ( E )/( R) = r

(I R -E )/( R) = r

HOPE IT HELPS Y

What is the area of the room in this diagram? 12 feet length 13 feet wide

Answers

To find the area of this you have to do 12 times 13 and that would give you 156 feet squared
156 is the answer when you need to find area you always do this l×w that means length times width so basically the two numbers multiplied by each other. Length times width always always gives area.

Mina has £3.20. If she gives half to her brother how much money does she have left?

Answers

Amount of money Mina has : £3.20

Half of her money : ½ × 3.20 = £1.6

So, She gives her brother £1.6
Money left with her : Total money - Money given to her brother = £3.20 - £1.60 = £1.60

Find the supplement and complement of θ=3π/5.

Answers

we shall convert first the angle in radians to degrees for convenience. The conversion is equal to 108 degrees. In this case, this is a second quadrant angle. The supplement angel is 180 - 108 equal to 72 degrees which is equal to 2 pi/5 . The complement is the same as the supplement

What is The equation of the line passing through (0,6) and (3,0)A) y= -1/2x+6
B) y=-1/2x+3
C) y=-2x+6
D) y=-2x+3

Answers

slope of that line would be
(0-6)/(3-0) = (-6)/3 = -2

then slope intercept form is
y = mx + b
where m = slope and b is the y intercept
so now we have y = -2x + b

and the y intercept is when x = 0
so b = 6 from that point (0,6)

so we have the equation
y = -2x + 6

which is option C
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