141 (The original number) ;1 + 4 + 1 = 6 (Add each individual digit together) ;6 is divisible by 3 ;Then 141 is divisible by 3 ;141 isn't a prime number ;In the same way, 171 is divisible by 9 ; then, 171 isn't a prime number ;
161 = 7 x 23; 161 is divisible by 7 ; then, 161 isn't a prime number ;
Test whether 171 is divisible by 2, 3 , 5 , 7 , 11 , 13 ( <span>an algorithm that tests each incremental </span>m<span> against all known primes < </span> division ) ;
but, 171 isn't divisibile by 2,3,5,7,11,13 ;
Finally, 171 is a prime number ;
3p + 34 = 90
3p = 90 - 34
3p = 56
p = 56/3
p = 18.67 (thats rounded)
2r + 44 = 76
2r = 76 - 44
2r = 32
r = 32/2
r = 16
53 + 6s = 1421
6s = 1421 - 53
6s = 1368
s = 1368/6
s = 228
" the product " means multiply
p x r x s = 18.67 x 16 x 228 = 68,108.16
Answer:
No, proportional relations are of the form,
Step-by-step explanation:
The given equation is
This is an equation in the form:
since we can rewrite to get:
This equation has a non-zero y-intercept and does not pass through the origin.
A proportional relation, will have a zero y-intercept and pass through the origin.
Therefore a proportional relation is of the form,
Answer:
4.8 minutes
Step-by-step explanation:
Pipe 1= 1/8 per min or 3/24
Pipe 2= 1/12 per min or 2/24
(2/24)+(3/24)= 5/24
24÷5= 4.8 min
Answer:
5 calories per gram
Step-by-step explanation:
Take the number of calories and divide by the number of grams
225/45
5 calories per gram
