3 years ago

I had 28 tests to mark and finished 54%. How many do I have left

1 answer:

6 0

52 tests because you would multiply 28 by 100 then divide by 54. You would get 51.851, but you cannot have and 8th of a test, so you would round up

You might be interested in

Select the correct answer

Sidana [21]

Answer:

<em>In simplest form, 75% gives 3/4 as a fraction. </em>

<em>The percent sign means divide by 100, so 75% means 75/100.</em>

3 0

3 years ago

Find all solutions in radian [0,2pi) solve 4sinx= -cos^2x +4

Sphinxa [80]

I hope this helps you

-cos²x= sin²x-1

4.sinx = sin²x-1+4

sin²x-4.sinx +3=0

(sinx-3)(sinx-1)=0

sinx≠3

sinx =1

SİN90=1

8 0

3 years ago

What is the value of the function at x=−2?<br> A) y=−4<br> B) y = 0<br> C) y = 2<br> D) y = 3

Shtirlitz [24]

Answer:

Step-by-step explanation:

3 0

3 years ago

How to put 18:3 in simplest form??

Pie

Divide 18 by 3 and you get 3 as an answer

3 0

3 years ago

Read 2 more answers

A box contains only $2 coins and $10 coins and there

miss Akunina [59]

<h3>Answer: 25</h3>

==========================================================

Work Shown:

x = number of $2 coins

y = number of $10 coins

x+y = 43 coins total

x = 43-y

2x = value of just the $2 coins only

10y = value of all the $10 coins only

2x+10y = total value of all coins mentioned

This value must be greater than $278, so,

2x+10y > 278

2( x ) + 10y > 278

2(43-y)+10y > 278

86-2y+10y > 278

8y+86 > 278

8y > 278 - 86

8y > 192

y > 192/8

y > 24

The smallest y can be is y = 25.

We need at least 25 coins worth $10 each.

8 0

2 years ago