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3 years ago

Caroline has 16 marbles 1/8 of them are blue how many of Caroline's marbles are blue

2 answers:

5 0

Here's another way; You divide 1 by 8, because 1/8 is equal to 1 ÷ 8, and 1 ÷ 8 is equal to (0.125). So if you multiply 1.25 by 16 you'll get 2. Hope this way helps, if you're confused I don't blame you. xD

DedPeter [7]3 years ago

4 0

2 . You have to divide 16 by 8. you get 2 . Hoped that helped

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PLS ANSWER I WILL MARK AS BRAINLIST

marysya [2.9K]

Answer:

Option 3

Step-by-step explanation:

This may not be the most efficient way, but I solved each one and option 3 had the same answer as the question.

8 0

1 year ago

When the effective interest rate is 9% per annum, what is the present value of a series of 50 annual payments that start at $100

ser-zykov [4K]

Answer:

$1,109.62

Step-by-step explanation:

Let's first compute the future value FV.

In order to see the rule of formation, let's see the value (in $) for the first few years

End of year 0

1,000

End of year 1(capital + interest + new deposit)

1,000*(1.09)+10

End of year 2 (capital + interest + new deposit)

(1,000*(1.09)+10)*1.09 +10 =

$\bf 1,000*(1.09)^2+10(1+1.09)$

End of year 3 (capital + interest + new deposit)

$\bf (1,000*(1.09)^2+10(1+1.09))(1.09)+10=\\1,000*(1.09)^3+10(1+1.09+1.09^2)$

and we can see that at the end of year 50, the future value is

$\bf FV=1,000*(1.09)^{50}+10(1+1.09+(1.09)^2+...+(1.09)^{49}$

The sum

$\bf 1+1.09+(1.09)^2+...+(1.09)^{49}$

is the sum of a geometric sequence with common ratio 1.09 and is equal to

$\bf \frac{(1.09)^{50}-1}{1.09-1}=815.08356$

and the future value is then

$\bf FV=1,000*(1.09)^{50}+10*815.08356=82,508.35564$

The present value PV is

$\bf PV=\frac{FV}{(1.09)^{50}}=\frac{82508.35564}{74.35572}=1,109.616829\approx \$1,109.62$

rounded to the nearest hundredth.

5 0

2 years ago

PLEASE HELP ILL GIVE BRAINLIEST

iren [92.7K]

The answers are option C) segment and option D) ray

Step-by-step explanation:

Line :

A line has arrow mark in the two ends. So, the diagram is not a line.

Point :

A point represents particular spot as a small dot. So, the diagram is not a point.

Segment :

It is a piece of line that has two end points. This part of line is called line segment and it is shown in the picture. option C is correct.

Ray :

A ray is a line with one endpoint and the other end extends with an arrow mark. So, the option D is also correct.

5 0

3 years ago

How many 1/10s in 2 3/5

Umnica [9.8K]

It'd be clearer if you'd write: "How many tenths are there in 2 3/5?"

2 3/5 13/5

---------- = ---------- = 26

(1`/10) 1/10

There are 26 tenths in 2 3/5.

5 0

3 years ago

What is 5y-4x =-7 2y+4x=14 X=? Y=?

Alja [10]

Answer:

X=3

Y=1

Step-by-step explanation:

In solving simultaneous equations, there are three methods, we have the elimination method, substitution method or graphical method. But for the purpose of this question, we would be using Elimination method.

5y-4x =-7 Equation 1

2y+4x=14 Equation 2

Since x has the same coefficient, it's easy to eliminate by adding up the two equations

5y+2y=7y

-4x+(+4x)=0

-7+(+14)=7

We have 7y=7

Divide both sides by 7,

y=7/7

y=1

Substituting for y in equation 2.

2(1)+4x=14

2+4x=14

4x=14-2

4x=12

x=12/4

x= 3

8 0

2 years ago