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3 years ago

There are some discs in a bag. 40% are red and 2/5 are yellow the rest is blue what fraction is blue?

2 answers:

6 0

All of the disks = 100%.

40% are red.

2/5 = 40/100 = 40% are yellow.

40% + 40% = 80%

100% - 80% = 20%

20% of the disks are blue.

20% can also be written as 20/100, which simplifies to 1/5.

1/5 of the disks are blue.

Monica [59]3 years ago

6 0

20% is blue. Or, 1/5 of the discs are blue. Hope this helped. Could I be brainliest please?

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Graph the equation y= x^2 - 2x - 8 on the accompanying set of axes. You must plot 5 points including the roots and the vertex.

Vanyuwa [196]

Answer:

I'm not so sure about this one so sorry if this is wrong

Step-by-step explanation:

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3 years ago

Caleb bought groceries and paid \$1.60$1.60dollar sign, 1, point, 60 in sales tax. The sales tax rate is 2.5\%2.5%2, point, 5, p

saveliy_v [14]

Answer:

Price of Caleb's groceries before tax = $64

Step-by-step explanation:

Let the price of groceries before tax be =$ $x$

Sales tax charged = $1.60

Sales tax rate =2.5%

Sales tax charged in terms of $x$ will be = 2.5% of the Original price of grocery = $2.5\% of x = 0.025\times x=0.025x$

So, we have,

$0.025x=1.60$

Dividing both sides by $0.025$

$\frac{0.025x}{0.025}=\frac{1.60}{0.025}$

∴ $x=64$

∴ Price of Caleb's groceries before tax = $64

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3 years ago

A parabola has vertex (2, 3) and contains the point (0, 0). find an equation that represents this parabola.

AfilCa [17]

First write it in vertex form :-

y= a(x - 2)^2 + 3 where a is some constant.

We can find the value of a by substituting the point (0.0) into the equation:-

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2 years ago

I can’t figure this out

ella [17]

Answer:

See picture

Step-by-step explanation:

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1 year ago

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kodGreya [7K]

So exponenetial growth or decay

it goes like this
f(t)=P(1+r)^t
r=rate of decay or grouth
if r>0 then it is grouth by r
if r<0 then it is decay
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P=initial amount
so
given
f(x)=5500(1.65)^t
f(x)=5500(1+0.65)^t
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3 years ago