All categories

2 years ago

Gianna brought seven necklaces for $50.75 and Winnie brought three necklaces for $24.60 who got the better deal

1 answer:

4 0

Gianna paid less per necklace so she got the better deal

Gianna: 50.75 / 7 = 7.25
So she paid $7.25 per necklace
Winnie: 24.60 / 3 = 8.20
So she paid $8.20 per necklace

You might be interested in

A group of 31 friends gets together to play a sport. First, people

Umnica [9.8K]

The number of teams she can make is 10.

<h3>How many teams can she make?</h3>

Division is the process of putting a number into equal groups using another number. The sign used to denote division is ÷. Division is one of the basic mathematical operations. Other basic mathematical operations include addition, subtraction, multiplication.

The number of teams that can be made can be determined by dividing the total number of friends by the total number of players in each team. The whole number that is derived from the division process is the number of teams teams that can be made given the total number of friends and the number of people that have to be in each group.

Number of teams she can make = total number of friends / number of people in each group

31 / 3 = 10 remainder 1

So, only 10 teams can be made. one person would not be on any team.

To learn more about division, please check: brainly.com/question/13281206

#SPJ1

5 0

1 year ago

Laura drives a garbage truck that weighs 3 tons. She picked up 2 tons of recyclables. What is the total weight in pounds of the

Allushta [10]

Answer:

Step-by-step explanation:

Total weight=The garbage truck weight + recyclables weight =3 tons + 2 tons = 5 tons

3 0

3 years ago

Read 2 more answers

A marching band wants to raise 20,000 at its annual fundraiser if they sell tickets for 20 a piece how many tickets will they ha

nataly862011 [7]

1000 tickets because you would divide 20000 divided by 20 =1,000

8 0

2 years ago

At an effective annual interest rate of i > 0, each of the following two sets of payments has present value K: (i) A payment

IgorLugansk [536]

Answer:

The present value of K is, $K=251.35$

Step-by-step explanation:

First of all, we need to construct an equation system, so

$(1)K=\frac{169}{(1+i)} +\frac{169}{(1+i)^{2}}$

$(2)K=\frac{225}{(1+i)^{2}} +\frac{225}{(1+i)^{4}}$

Then we equalize both of them so we can find $i$

$(3)\frac{169}{(1+i)} +\frac{169}{(1+i)^{2}}=\frac{225}{(1+i)^{2}} +\frac{225}{(1+i)^{4}}$

To solve it we can multiply $(3)*(1+i)^{4}$ to obtain $(1+i)^{4}*(\frac{169}{(1+i)} +\frac{169}{(1+i)^{2}}=\frac{225}{(1+i)^{2}} +\frac{225}{(1+i)^{4}})$ , then we have $225(1+i)^{2}+225=169(1+i)^{3}+169(1+i)^{2}$ .

This leads to a third-grade polynomial $169i^{3}+451i^{2}+395i-112=0$ , after computing this expression, we find only one real root $i=0.2224$ .

Finally, we replace it in (1) or (2), let's do it in (1) $K=\frac{169}{(1+0.2224)} +\frac{169}{(1+0.2224)^{2}}\\\\K=251.35$

8 0

2 years ago

Given the following geometric sequence, find the 12th term: {2, -4, 8, ...}.

BaLLatris [955]

2 times what = -4?
-2 does
-2 x 2 = -4

-4 time what = 8?
Again, -2.
-2 x -4 = 8

You could do this over and over again or make a table, or you can make a function.
f(n) = f(1) • r $^{n-1}$
f(1) in this case is 2.
f(n) = 2 • r $^{n-1}$
r is rate of change, which is -2.
f(n) = 2 • -2 $^{n-1}$
To find the 12th number in the sequence, just substitute n for 12.
f(12) = 2 • -2 $^{12-1}$
f(12) = 2 • -2 $^{11}$
-2^11 = -2048
2 x -2048 = -4096
So the 12th number in the sequence will be -4096.

3 0

3 years ago