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Butoxors [25]
3 years ago
8

There are 10 pencils in a desk. Ninety percent of the pencils are sharpened. Which equation can be used to find the number of sh

arpened pencils?
mc012-1.jpg
mc012-2.jpg
mc012-3.jpg
mc012-4.jpg
Mathematics
1 answer:
dezoksy [38]3 years ago
5 0
Mc012-2.jpg ........................ 10/90%= 11.1111111111111 
You might be interested in
PLEASE HELP!
AnnZ [28]

Answer:

A.30x3-3x2-24x+9

Step-by-step explanation

1. Separate the terms in g(x). (6x) (-3)

2. Distribute by multiplying each term in f(x) by (6x).

   (6x)(5x2+2x-3)=30x3+12x2-18x

3. Distribute the other term in g(x) to each term in f(x).

   (-3)(5x2+2x-3)= -15x2-6x+9

4. Combine the like terms of both answers.

   30x3+12x2-18x-15x2-6x+9= <em><u>30x3-3x2-24x+9</u></em>

3 0
2 years ago
Joe receives an average of 780 emails in his personal account and 760 emails in his work account each month. After changing his
Semmy [17]

Answer:

702 emails

Step-by-step explanation:

<h2>This problem bothers on depreciation of value, in this context it is Joe's email that has depreciated by 10%.</h2>

Given data

Average personal emails received monthly = 780 emails

Average work emails received monthly= 760 emails

     

      We are required to solve for the new amount of emails Joe will be receiving after changing his address, to find this value we need to solve for the depreciation of his personal mails.

      After solving for the depreciation , we then need to subtract the depreciation from the initial number of mails to get the new number of mails.

let us solve for 10% depreciation.

depreciation= \frac{10}{100} *780\\depreciation=0.1*780= 78 emails

The new number of mails

= initial number of mail- depreciation\\ =780-78= 702 emails

Joe will be receiving an average of 702 emails in his personal account monthly

7 0
3 years ago
This is so important please help
Shtirlitz [24]

Given:

The center of the circle = (-1,0)

Point on the circle = (2,-4).

To find:

The equation of the circle.

Solution:

Distance between two points is

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Distance between the center (-1,0) and the point on the circle (2,-4) is the radius of the circle.

r=\sqrt{(2-(-1))^2+(-4-0)^2}

r=\sqrt{(2+1)^2+(-4)^2}

r=\sqrt{(3)^2+(-4)^2}

On further simplification, we get

r=\sqrt{9+16}

r=\sqrt{25}

r=5

Now, the equation of the circle is

(x-h)^2+(y-k)^2=r^2

Where, (h,k) is the center and r is the radius of the circle.

The radius of the circle is 5 and the center is at (-1,0), so the equation of the circle is

(x-(-1))^2+(y-0)^2=5^2

(x+1)^2+y^2=25

Therefore, the first option is correct, i.e., (x+1)^2+y^2=25.

3 0
2 years ago
98-(5x15)<br>how to answer?​
Arte-miy333 [17]
5x15=75 98-75=23 pemdas
7 0
3 years ago
Read 2 more answers
4/9+5/6 what is it?HELP!​
stiv31 [10]

Answer:

1 5/18

Step-by-step explanation:

4/9 = 8/18

5/6 = 15/18

15/18 + 8/18 = 23/18 = 1 and 5/18

7 0
3 years ago
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