There are 15 boys what are you asking the sentence is not complete
Answer:
18 Skittles
6 M&Ms
Step-by-step explanation:
Set up an equation:
Variable x = number of skittles
Variable y = number of M&Ms
1.50x + 2y = 39
x + y = 24
In the second equation, isolate a variable:
x = 24 - y
Substitute the value of x for 24 - y in the first equation:
1.50(24 - y) + 2y = 39
Use distributive property
36 - 1.5y + 2y = 39
Combine like terms
36 + 0.5y = 39
Isolate variable y:
0.5y = 3
y = 6
Substitute the value of y for 6 in the second equation:
x + 6 = 24
Isolate variable x:
x = 18
Plug these values into any equation of your choice to see if these values are correct (I'll do both equations just to prove it):
1.50(18) + 2(6) = 39
27 + 12 = 39
39 = 39
Correct
x + y = 24
18 + 6 = 24
24 = 24
Correct
Answer: n = 3; n represents a remainder in a division problem.
Explanation:
1) Finding n:
i) Given: 643 = 4 × 160 + n
ii) Do the operations: 643 = 640 + n
iii) Subraction property of the equality: 643 - 640 = n
iv) Do the operations: 3 = n
Answer: n 3
2) Meaning of n
When you divide 643 by 4 the quotient is 160 and the remainder is 3, because 160 × 4 = 640, and 643 - 640 = 3.
This is, 3 is what is left when you split 643 into 4 getting 160 whole parts (plus the remainder, 3).
Answer:
162.5 minutes OR 2.71 hours OR 2 hours and 42 minutes
Step-by-step explanation:
325 × 2.5 = 812.5
812.5 ÷ 5 = 162.5
Each bridesmaid will spend 162.5 minutes making decorations.
Answer:
27
Step-by-step explanation:
5,7,9,11. ....
This is an arithmetic sequence.
First term = a₁ = 5
Common difference = d = second term - first term = 7 - 5 = 2
nth term = a₁ + (n-1)*d
12th term = 5 + (12 - 1) * 2
= 5 + 11*2
= 5 + 22
= 27
