Answer:
The rectangle dimensions are 20 m by 80 m
Step-by-step explanation:
Let W represent the width and L the length. Then W = 0.25L.
The perimeter, P, is 200 m. The formula for that is P = 2W + 2L.
Substituting 0.25L for W, we get:
2(0.25L) + 2L = 200 m, or (after mult. both sides by 2): L + 4L = 400 m
Then 5L = 400 m, and L = 80 m. Thus, W = 0.25(80 m) = 20 m.
The rectangle dimensions are 20 m by 80 m
To be able to answer this item, we let x be the number of drinks bought. Similarly, we may represent the number of snacks by the variable y. The sum of the number of drinks and snacks bought should not be more than 12. This can be represented through the inequality,
x + y ≤ 12
Furthermore, the total amount spent would be equal to the sum of the products of the number of the cost of each as represented in the inequality below.
1.05x + 2.2y ≤ 25
Answer:
8 years
Step-by-step explanation:
the age of Saloni = (4×11) - (10+14+12)
= 44 - 36
= 8 years
Answer:
three consecutive odd integers: 2n-1 2n+1 2n+3
that the sum of the smaller two is three
times larger increased by seven: 2n-1 + 2n+1 = 3(2n+3) +7
4n = 6n+ 9 +7
4n = 6n+ 16
4n -6n = 16
-2n = 16
n = 16/(-2)
n=-8
a) 2n -1 = 2(-8) -1 = -17
b) 2n+1 = 2(-8)+1 = -15
c) 2n+1 = 2(-8)+3 = -13
Ans. -17 ; -15 ; -13
Answer:
45 miles in 3 days
Step-by-step explanation:
if she drives 3 miles an hour for 5 hours a day that would be 3x5=15
15x3 days=45 miles in 3 days
