Answer:
x=5(9+8)
add 9+8 to get 17
multiply 17 by 5
answer: $85
(5x9)+(5x8)=x
multiply 5x9 to get 45
multiply 5x8 to get 40
add 45 and 40
answer: $85
The first expression was easier to evaluate because it required less steps.
Hope this helps :)
Answer:
c
Step-by-step explanation:
Answer:
air = 95 mph
plane = 824 MPH
Step-by-step explanation:
6(x-y) = 4374
6(x+y)= 5514
6x - 6y = 4375
6x + 6y = 5514
12x = 9889
x = 824 mph
y = 95 mph
Answer:
A. 10cm
B. 8 times
Step-by-step explanation:
The question is on volume of a conical container
Volume of a cone=
where r is the radius of base and h is the height of the cone
Given diameter= 12 cm, thus radius r=12/2 =6 cm
h=10 cm
B.
If height and diameter were doubled
New height = 2×10 =20 cm
New diameter = 2×12 = 24, r=12 cm
volume =
To find the number of times we divide new volume with the old volume
Answer:
$4,160,000
Step-by-step explanation:
First, find the length of the new road in km using Pythagorean Theorem.
According to Pythagorean Theorem:
c² = a² + b²,
Where, c is the longest leg, which is the hypotenuse, a and b are the 2 other legs of the ∆.
Since we are calculating the lenght in km, convert each lenght of the two legs of the ∆ into km.
1 km = 1,000 m
10,000 m = 10 km
24,000 m = 24 km
c² = 24² + 10²
c² = 576 + 100
c² = 676
c = √676
c = 26 km
Lenght of the new road = 26 km
If cost of construction is $160,000 per kilometer, therefore, cost of constructing 26 km road = 160,000*26 = $4,160,000