3 years ago

If contact lenses cost 80$ how much will they cost if they are with 10% off?

Mathematics

1 answer:

nevsk [136]3 years ago

6 0

10% of 80 = 8

80 - 8 = 72

if they are 10% off, the contact lenses will cost $72

You might be interested in

A quadrilateral has two angles that measure 222° and 81°. The other two angles are in a ratio of 6:13. What are the measures of

hram777 [196]

$\sf\huge\underline{\star Solution:-}$

$\rightarrow$ <u>Ratio of two angles are 6:13.</u>

So, let the one angle be $\sf{6x}$ and another be $\sf{13x.}$

As we know that,

Sum of all interior angles of a quadrilateral = $\sf\pink{360°.}$

So let's sum up the given angles,

$\rightarrow$ $\sf{222°+81°+6x+13x \:=\: 360°}$

$\rightarrow$ $\sf{303+19x \:=\: 360°}$

$\rightarrow$ $\sf{19x \:=\: 360-303}$

$\rightarrow$ $\sf{19x \:=\: 57}$

$\rightarrow$ $\sf{x \:=\: \frac{19}{57}}$

$\rightarrow$ $\sf{x \:=\: 3}$

Hence, $\sf{x \:=\: 3}$

So, First angle $\sf{= \:6x\: = \:6×3 \:=}$ $\sf\purple{18°.}$

Second angle $\sf{= \:13x\: = \:13×3 \:=}$ $\sf\purple{39°.}$

_________________________________

Hope it helps you:)

3 0

3 years ago

it takes 120 newspapers to fill 8 recyceling bins what is the unit rate in newspapers to recyceling bins

barxatty [35]

15 newspaper per recycling bin

8 0

3 years ago

You have cup of cornmeal in your cupboard. A recipe for muffins calls for

Dahasolnce [82]

You would have none left. If you started with one cup of cornmeal and then you used that one cup of cornmeal to make the muffins, you would have none left

5 0

3 years ago

Helpppppppppp what’s the angleeeee plz tell me tytytytyytyttytytyt. And plzzz hurry bc I have 2% Rn-

Makovka662 [10]

It’s precisely 36 degrees sir

8 0

3 years ago

What is the equation of the given line in standard form using integers coefficients y equals -1.7 x + 8.5

sukhopar [10]

If you want integer coefficients only, multiply the equation of the line by 10. I'm assuming you accidentally left off the "= 0" at the end: -1.7x + 8.5 = 0.

If that's the case, then multiplying the whole equation by 10 results in -17x + 85 = 0.

Here you have only integer coefficients.

6 0

3 years ago