All categories

3 years ago

Jackie had her hair done and gave her stylist a 20% tip. Her haircut and color was $120.

Mathematics

2 answers:

Ratling [72]3 years ago

8 0

Answer:

She gave her stylist a 24 dollar tip.

goldenfox [79]3 years ago

4 0

Answer:

24 dollar tip

Step-by-step explanation:

You might be interested in

25 POINTS!!! Under a dilation centered at the origin, the vertex, (2, 3), of a polygon is moved to the point (−8, −12) . What is

stich3 [128]

325

Step-by-step explanation:

7 0

4 years ago

Bill has x pence.

Anna [14]

Ben has x pence, but Bill has 2x (twice more)

3 0

2 years ago

The radius of a sphere is multiplied by 7. What effect does this have on the volume of the sphere?

elena55 [62]

Answer:

The new volume is 7^3 or 343 times the old volume

Step-by-step explanation:

The original sphere has a volume of

V = 4/3 pi r^3

The radius is multiplied by 7

The new volume is

V = 4/3 pi (7r) ^3

V = 4/3 pi (7)^3 r^3

The new volume is 7^3 or 343 times the old volume

7 0

3 years ago

Four brothers have ages which are consecutive even integers. If the product of the ages of the two middle brothers is 528, how o

exis [7]

Answer:

The oldest brother is of age $26$ years.

Step-by-step explanation:

As the age of four brothers are consecutive even integers.

We assume that the ages are $x,(x+2),(x+4),(x+6)$ as their respective ages.

And the age of the youngest brother $x$ yrs.

Age of the oldest brother $(x+6)$ yrs.

According to the question

Product of two middle brother that is $(x+2)(x+4) =528$

So we will arrange this in our equation and solve the quadratic.

$(x+2)(x+4) =528$

$x^{2}+4(x)+2(x)+8 =528$

$x^{2}+4(x)+2(x)+8-528=0$

$x^{2}+6(x)-520=0$

Solving the quadratic by using middle term splitting or directly with quadratic formula we can find the value of 'x' .

Here it is solved with quadratic formula:

Comparing with standard equation $ax^{2}+b(x)+c=0$ ,here $a=1,b=6\ and\ c=-520$ .

$x= \frac{-b \pm \sqrt{b^2-4ac} }{2a} = \frac{-6 \pm \sqrt{6^2-4\times \ (-520)} }{2\times 1}$

$x=20,-26$

We will work with the positive value of (x) so the the age of the youngest brother $=(x)=20$ yrs.

And the age of the the oldest brother $=(x+6)=(20+6)=26$ years.

The age difference is of $(26-20)=6$ years.

4 0

4 years ago

A child throws a ball up in the air to a height of 3.5 m and catches it at the same point from which he threw it. The ball is in

dimaraw [331]

$S = 3,5 + 3,5 = 7 m \\ V = \frac{\triangle S}{\triangle T} = \frac{7}{1,7} \approx 4,12 \frac{m}{s}$

5 0

3 years ago