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3 years ago

Find the new cost including Sales Tax: $99 headphones; 5% tax

Mathematics

1 answer:

rjkz [21]3 years ago

6 0

Answer:

103.95

Step-by-step explanation:

99×5/100=4.95

99+4.95=103.95

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Two less than the product of a number and -5 is -42.

Helga [31]

Answer:

Step-by-step explanation:

(p*-5)-2=-42

-5p-2=-42

-5p=-42+2=-40

-5p/-5=-40/-5

6 0

3 years ago

Help pleaseeeee ASAP

dem82 [27]

Answer:

9 cm

Step-by-step explanation:

The volume of a square based pyramid is given as :

V = 1/3a²h

Where ; a = base edge ; h = Height

Volume, V = 48 cm³ ; a = 4cm

48 = 1/3 * 4² * h

48 = 1/3 * 16h

48 * 3 = 16h

144 = 16h

h = 144 / 16

h = 9 cm

Height = 9cm

3 0

3 years ago

PLEASE HELP!!!!!<br> This is edge! <br> A b c d<br> Will mark brainliest!!!!

Natalka [10]

Answer:

D. $\frac{7}{12} \: of \: a \: pound$

Step-by-step explanation:

$total \: candies = 2 \frac{1}{4} + \frac{2}{3} \\ \\ = \frac{9}{4} +\frac{2}{3} \\ \\ = \frac{9 \times 3 + 2 \times 4}{3 \times 4} \\ \\ = \frac{27 + 8}{12} \\ \\ = \frac{35}{12} \\ \\ share \: of \: brother = \frac{1}{5} \times \frac{35}{12} \\ \\ = \frac{7}{12} \: of \: a \: pound$

4 0

3 years ago

Read 2 more answers

a class of 30 students, 2 students did not borrow any books from the library, 12 students each borrowed 1 book, 10 students each

Zolol [24]

Answer:

Step-by-step explanation:

It's given that 2 students borrowed 0 books, 12 borrowed 1 book, 10 borrowed 2 books, and 6 borrowed 3 or more books. The average of books per student is 2.

To analyse the problem, let a, b, c, d, e, and f be the number of books borrowed by each of the 6 students who borrowed 3 or more, as the maximum must be one of those 6.

The average is calculated by adding up the borrowed books from all students, and then diving it 30 (the number of students). This would be :

$\frac{2*0+12*1+10*2+(a+b+c+d+e+f)}{30} =2$

$\frac{32+(a+b+c+d+e+f)}{30} =2$

$\ 32+a+b+c+d+e+f=60$

$\ a+b+c+d+e+f=28$

The maximum value for any student would be found when all other 5 students borrowed the minimum, which is 3 in this case. So set them all but one equal to 3 :

$\ 3+3+3+3+3+f=28$