Ask question

Ask question

All categories

3 years ago

13

The price of a set of headphones that regularly sells for $99 increases by 30 percent. What is the new price for the headphones?

A $128.70 B $92.40 C $70

1 answer:

docker41 [41]3 years ago

4 0

Answer:

the anewer is a

Step-by-step explanation:

You might be interested in

siw is a fourth as old as mother, and Mona is a fifth as old as mother. Mother is 22 years older than the two girls together. Ho

myrzilka [38]

Answer:

Siw's age is 10 years old

Mona's age is 8 yers old

Mother's age is 40 years old

Step-by-step explanation:

Let

x ----> Siw's age

y ---> Mona's age

z ---> Mother's age

we know that

Siw is a fourth as old as mother

so

$x=\frac{1}{4}z$ ----> equation A

Mona is a fifth as old as mother

so

$y=\frac{1}{5}z$ ----> equation B

Mother is 22 years older than the two girls together.

so

$z=x+y+22$ ----> equation C

substitute equation A and equation B in equation C

$z=\frac{1}{4}z+\frac{1}{5}z+22$

solve for z

Multiply by 20 both sides to remove the fraction

$20z=5z+4z+440$

$20z-9z=440\\11z=440\\z=40\ years$

Find the value of x

$x=\frac{1}{4}(40)=10\ years$

Find the value of y

$y=\frac{1}{5}(40)=8\ years$

therefore

Siw's age is 10 years old

Mona's age is 8 yers old

Mother's age is 40 years old

6 0

4 years ago

The sum of 7+14+21 + 150 terms

Genrish500 [490]

192 I just calculated it

5 0

3 years ago

The sum of the number is -44.84 one of the numbers is 24.6 the other two numbers are equal to eat other what is the value of eac

nikklg [1K]

The answer is -34.72. I have attached a picture of the work. I hope this helps. :)

3 0

3 years ago

Which statements about the Extreme Value theorem are true?

SCORPION-xisa [38]

Answer:

do you have any statments?

5 0

3 years ago

Help me solve this problem step by step because I’m having a hard time

jarptica [38.1K]

Answer:

x=3, y=10

Step-by-step explanation:

in triangle KLN all the angles are equal making it an equilateral trianlge. GIven one side being 6, we know all the sides are 6 including the side with the expression y-4.

this means

y-4=6

y=10

Using the converse of the base angles theorem(meaning we know the base angles are congruent so the two sides are conguent), we know that

6=x+3

x=3

4 0

3 years ago