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mars1129 [50]
2 years ago
11

What is 15% of £19.00

Mathematics
1 answer:
N76 [4]2 years ago
5 0
34


- Harvard university professor
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There are 30 boys and 25 girls in class . Find the ratio of boys and girls​
77julia77 [94]

Answer:

Ratio = 6 : 5

Step-by-step explanation:

Total number of boys = 30

Total number of girls = 25

Ratio of boys and girls = 30 : 25

= 6 : 5

3 0
3 years ago
Anastasia is grocery shopping with her father and wonders how much shopping is left to do. "We already have 60%, percent of the
777dan777 [17]
The answer is:  " 20 items " .
_____________________________________________________

60% of x = 12.  Solve for x.

60% = 60/100 = 6/10 = 3/5 = 0.6 .

(3/5)x = 12 ;

Multiply each side of the equation by "5" :

5* (3/5)x = 12 * 5 ;

3x = 60 ; 

Divide each side of the equation by "3" ; 

3x/ 3 = 60 / 3 ;

to get:

x = 20.
_____________________________________________________
The answer is:  " 20 items " .
_____________________________________________________
7 0
3 years ago
What is 4 1/3 - 1 7/15
san4es73 [151]

First, find the <em>least common denominator</em> (the denominator that can be able to equal to other denominators).

[tex]4[tex] [tex]\frac{1}{3}[tex]

[tex]4[tex] [tex]\frac{5}{15}[tex]

Then, subtract.

[tex]4[tex] [tex]\frac{5}{15}[tex] [tex]-[tex] [tex]1[tex] [tex]\frac{7}{15}[tex]

-------------------

= [tex]2[tex] [tex]\frac{13}{15}[tex]

5 0
3 years ago
Read 2 more answers
The sum of the first natural number and 0 is 1, the sum of the first two natural numbers and 0 is 3, the sum of the first three
Karolina [17]
The sequence 1, 3, 6, 10, 15, etc  find dy/dx...

dy/dx=2,3,4,5  this is not a constant so find d2y/dx2

d2y/dx2=1,1,1,  this is a constant, specifically a constant acceleration, which is a property of a quadratic function of the form ax^2+bx+c  and if we use three points of the sequence we can solve for all of the variables...

9a+3b+c=6
4a+2b+c=3
a+b+c=1   getting differences

5a+b=3
3a+b=2  and again

2a=1, so a=1/2, making 3a+b=2 become:

1.5+b=2, so b=1/2, making a+b+c=1 become

1/2+1/2+c=1 so c=0 so our function is:

a(n)=(n^2+n)/2

which can be expressed, if you factor the numerator as:

a(n)=n(n-1)/2
3 0
3 years ago
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I need the equation for both options
Alex777 [14]
Option 1: C= 10 L + 200. Option 2: C= 50 L .
6 0
3 years ago
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