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3 years ago

A craftsman drill is on sale for $99.99. if the sales tax rate is 7%, how much will molly have to pay for the drill

Mathematics

1 answer:

Archy [21]3 years ago

7 0

It will be $106.99 cents

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The president of a certain university receives a salary that is four times the salary of one of the department heads. The total

Viktor [21]

a. The salary of the department head is $105,000.

b. The salary of president is $420,000.

Step-by-step explanation:

Let,

x be the salary of president.

y be the salary of head of department.

According to given statement;

x=4y

a) What is the salary of the department head?

Salaries of two heads of department = $210000

$2y=210000$

Dividing both sides by 2;

$\frac{2y}{2}=\frac{210000}{2}\\y=105000$

The salary of the department head is $105,000.

b) What is the salary of the president of the university?

x=4y

$x=4(105000)\\x=420000$

The salary of president is $420,000.

Keywords: Division, multiplication

Learn more about multiplication at:

#LearnwithBrainly

6 0

4 years ago

HELP! WILL GIVE BRAINLIEST!!!

grin007 [14]

Answer:

The volume of a sphere can be approximated by cylinders. As the number of cylinders approaches infinity the total volume of all the cylinder approaches the actual volume of the sphere.

3 0

3 years ago

A bag contains 3 red balls and 1 blue ball. A second bag contains 1 red ball and 1 blue ball. A ball is randomly picked from eac

Firlakuza [10]

Answer:

"2.82" seems to be the correct solution.

Step-by-step explanation:

As we know,

A bag (Bag A) contains,

Red balls = 3

Blue ball = 1

A second bag (Bag B) contains,

Red balls = 1

Blue ball = 1

Now,

⇒ P(Bag A, red ball) = $P(A)\times P(r)\times P(r)$

On substituting the values, we get

⇒ = $\frac{1}{2}\times \frac{3}{4}\times \frac{2}{3}$

⇒ = $\frac{1}{4}$

Similarly,

Probability of second bag will be:

⇒ P(Bag B) = $\frac{1}{2}$

hence,

In the first bag (Bag A), the expected number of red balls will be:

⇒ $E(n)=\Sigma P(n)\times n$

On substituting the values, we get

⇒ $=3 (\frac{1}{4})+2(\frac{1}{8} )+4(\frac{1}{24} )+3(\frac{1}{12} )+3(\frac{4}{20} )+4(\frac{1}{20} )+2(\frac{3}{20} )+\frac{2}{20}$

⇒ $= \frac{169}{60}$

⇒ $=2.82$

7 0

3 years ago

Miss Smith brought sweets for 20 learners.The sweets were in two flavours, peach and strawberry flavoured sweets, how many sweet

Andrews [41]

I don’t understand sorry

5 0

3 years ago

Find the measure of angle 3 if the measure of angle 8 is 40<br> degrees.

steposvetlana [31]

Answer:

3=140°

Step-by-step explanation:

7 0

3 years ago