3 years ago

Write an algebraic expression for “12 less than the quotient of 12 and a number z.”

Mathematics

1 answer:

algol133 years ago

4 0

$\frac{12}{n} - 12$

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2+3i divided by 3-3i ( a+bi form)

Oduvanchick [21]

$(2+3i):(3-3i)=\frac{2+3i}{3-3i}\cdot\frac{3+3i}{3+3i}=\frac{(2+3i)(3+3i)}{(3-3i)(3+3i)}=\frac{6+6i+9i-9}{3^2-(3i)^2}=\frac{-3+15i}{9+9}\\\\=\frac{-3+15i}{18}=-\frac{3}{18}+\frac{15i}{18}=-\frac{1}{6}+\frac{5}{6}i$

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Bao buys a skateboard that originally cost $38. He uses a coupon to save 20% after sales tax. The sales tax rate is 6.25%. How m

il63 [147K]

Answer:

I believe its 4.75

Step-by-step explanation:

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3 years ago

A mom is 7 times older than her daughter. In five years,she will be 4 times older than her daughter. Find there ages now. I am t

sammy [17]

Answer:

Mom === 10.25

Daughter === 3.25

Step-by-step explanation:

Let’s the mom age be 7+x and the daughters age be x. Put it in a linear equation 7+x=5(4+x).

open the bracket which will give you 7+x=20+5x.

collect like terms which will give you 5x-x=20–7 and you will get 4x=13 where x is 3.25 the mom is 10.25 and the daughters age is 3.25

6 0

2 years ago

Read 2 more answers

How many terms are in the expression 5 - 3c + 21?

Dmitrij [34]

There are three terms. :)

8 0

3 years ago

Please help asap!!!!!!!! Number 2 and 3

romanna [79]

Answer:

Step-by-step explanation:

2) r = 16/2 = 8 cm

Area of top and bottom = 2*πr²

= 2 * 3.14 * 8 * 8

= 401.92 cm²

Midlle part = h * πd

= 6 * 3.14 * 16

= 301.44 cm²

Total = 401.92 + 301.44

= 703.36 cm²

3) Area of front and back = $2* \frac{1}{2}*b * h\\$

$= 2*\frac{1}{2} * 3 * 4\\\\= 12 cm^{2}$

Area of bottom = length * breadth

= 12* 3

= 36 cm²

Area of left = 12 * 4

= 48 cm²

Area of right = 12 * 5 = 60 cm²

Total = 12 + 36 + 48 + 60 = 156cm²

7 0

3 years ago