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3 years ago

What is the total cost of a DVD that sells for $22.99 plus a 5% sales tax?

Mathematics

2 answers:

brilliants [131]3 years ago

7 0

The total cost of it was $72.92 she had 10 dollars left.

Dmitry [639]3 years ago

5 0

It’s 72.92 and had $10 left

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Montel can't keep up with the demand for the latest best-selling book. He had to order more copies twice this week. On Monday he

zhannawk [14.2K]

96+264 = 360
360 \ 24 = 15

Therefore he received 15 boxes

6 0

3 years ago

Read 2 more answers

6 less than half of r : translate into expression

Sladkaya [172]

Answer:

r/2 -6

Step-by-step explanation:

less than means it comes after

half of r

r/2

6 less than means subtract

r/2 -6

6 0

3 years ago

Help me with this:((((

Hoochie [10]

Activity 3
1) 2m^2(4m^2 + 3m + 2)
2) (x + 4)^2 (x - 4)
3) (x + 9)(x - 7)
4) 5y(17y - 4z)
5) (2x - y)(6x + 5y)

Activity 4
1) 80 units because when you sub h = 9, you get 400 as the answer and because it’s a square, you square root 400 which is 20 units per side.
2) x = 7cm because when you multiply (x + 5)(x - 3), you get x^2 + 2x - 15 = 48 and when you solve it you get x is equal to 7, -9, because the length of the rectangle is positive x is equal to 7.
3) the binomial would be (9x + 1)^2.

4 0

3 years ago

Assuming boys and girls are equally likely, find the probability of a couple having a baby girl when their sixth child is born

Ivanshal [37]

Answer: The required probability of having 6th girl is 0.5.

Step-by-step explanation: Given that boys and girls are equally likely.

We are to find the probability of a couple having a baby girl when their sixth child is born, given that the first five children were all girls.

Since the events of having a boy and a girl are independent of each other, so

the probability of having 6th girl dose not depend on the birth of the first five girls.

We know that there are only two possible cases (either a boy or girl will born).

So, sample space, S = {G, B} and the event E of having a girl is, E = {G}.

That is, n(S) = 2 and n(E) = 1.

Therefore, the probability of event E is given by

$P(E)=\dfrac{n(E)}{n(S)}=\dfrac{1}{2}=0.5.$

Thus, the required probability of having 6th girl is 0.5.

3 0

3 years ago

During summer vacation, you charge $15 per hour for golf lessons and a registration fee of $45. If you make $120 one day, how ma

exis [7]

Answer:

you spend 5 hrs. first you have to substract 45 from 120 because it is a default charge. 120-45 = 75. if you divide 75 by 15 you get 5 hrs. because it 15$ per hour.

7 0

3 years ago