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3 years ago

A customer has a credit card that charges 18% simple interest every year. How much interest will the customer save

Mathematics

1 answer:

Lera25 [3.4K]3 years ago

6 0

Answer:

$900

Step-by-step explanation:

18% of $5000

0.18×5000=900

The customer will save $900

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SOMEONE PLEASE HELP WITH THESE QUESTIONS!! I don’t mind which one(s) you do I just need as much help as I can get thank you !!

o-na [289]

1. Use the FOIL (first, outside, inside, last) method:

F: x*x=x^2

O: x*-2=-2x

I: 3*x=3x

L: 3*-2=-6

x^2-2x+3x-6

*Combine like terms*

x^2+x-6

2. Look for the greatest common factor (GCF) of 15 and 5. It is 5 (15/5=3 and 5/5=1)

5(3x+1)

3. You want to find two numbers whose product is 6 and whose sum is -5. -3 and -2 complete these requirements.

(x-3)(x-2)

4. Solve for x:

*Add x to both sides*

y+x=ab

*Subtract y from both sides*

x=ab-y

8. Plug in 0.5 for x and solve:

10-8(0.5)

10-4

10. *Multiply both sides by 5*

2x-3=20

*Add 3 to both sides*

2x=23

*Divide both sides by 2*

x=23/2

I did what I could. Hope I could help!!

5 0

3 years ago

From a group of ten boys and twelve girls, a committee of students is chosen at random. what is the probability that

Free_Kalibri [48]

A) 2/11
b) 2/5
c) 1/22

5 0

4 years ago

The volume of a box (v) varies directly with its length (l) if one of the boxes has a volume of 325 cubic inches and a length of

stiks02 [169]

Answer:

The constant of proportionality for the group of boxes is: 25

Step-by-step explanation:

Proportion means that change in one quantity causes change in other quantity. Direct variation means that increase in one quantity causes increase in the other quantity.

Let l be the length and v be the volume

Then according to given statement

V∝l

Removing the proportionality symbol introduces a constant in the equation

$V = kl$

Putting V = 325 and l = 13

$325 =k(13)\\k = \frac{325}{13}\\k = 25$

Hence,

The constant of proportionality for the group of boxes is: 25

5 0

3 years ago

An 16 16-oz jar of peanut butter in the shape of a right circular cylinder is 7 7 in. high and 5 5 in. in diameter and sells fo

olya-2409 [2.1K]

Answer:

Step-by-step explanation:

The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

Where

r represents the radius of the cylinder.

h represents the height of the cylinder.

π is a constant whose value is 3.14

Considering the 16 oz jar,

h = 7 inches

Diameter = 5 inches

Radius = diameter/2 = 5/2

r = 2.5 inches

Volume = 3.14 × 2.5² × 7 = 137.375 inches³

Considering the 29 oz jar,

h = 7.5 inches

Diameter = 5.25 inches

Radius = diameter/2 = 5.25/2

r = 2.625 inches

Volume = 3.14 × 2.625² × 7.5 = 162.27 inches³

1) If the cost is directly proportional to volume, then

If 137.375 inches³ cost $1.6

then 162.27 inches³ should cost

(162.27 × 1.6)/137.375 = $1.89

The price of the larger jar would be $1.89

2) If the cost is directly proportional to weight, then

If 16 oz cost $1.6, then

29 oz would cost

(29 × 1.6)/16 = $2.9

The price of the larger jar would be $2.9

7 0

3 years ago

A superhero recently asked his nemesis how many cats she has. She answered with a riddle: "One-half of my cats plus two."

mixer [17]

I got ten. Here's the equation.

x = 1/2x + 5

Subtract 1/2x from both sides to get all x's on one side 

x - 1/2x = 1/2x - 1/2x + 5 

1/2x = 5 

Now multiple the left by 2 to get x, but since it's an equation, you need to also multiply the right by 2 to keep it =. 

2 * 1/2x = 2 * 5 

x = 10 cats

4 0

3 years ago

Read 2 more answers