Answer:28.50
I’m doing a lesson for iready and I had the same question
Answer:
35
Step-by-step explanation:
280÷8=35
The volume of a quadrangular base pyramid is:
V = (1/3) * (Ab) * (h)
Where,
Ab: base area
h: height
Clearing the area of the base we have:
Ab = (3 * V) / (h)
Answer:
An expression that represents the area of the base of the pyramid is:
A) 3v / h units
9514 1404 393
Answer:
- drink: $1.35
- sandwich: $4.20
Step-by-step explanation:
Let d and s represent the cost of a drink and a sandwich, respectively. The two purchases give rise to the equations ...
3d +5s = 25.05
4d +2s = 13.80
Dividing the second equation by 2 gives ...
2d + s = 6.90
Subtracting the first equation from 5 times this, we get ...
5(2d +s) -(3d +5s) = 5(6.90) -25.05
7d = 34.50 -25.05 = 9.45
d = 1.35
The cost of each drink is $1.35.
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<em>Additional comment</em>
Using the simplified 2nd equation, we can find the cost of a sandwich.
s = 6.90 -2d = 6.90 -2.70 = 4.20
The cost of each sandwich is $4.20.
Isolate the variable by itself on one side of the equation.
0.6y=10.3 divide both sides of the equation by 0.6
y=10.3/0.6 (we can multiply both numerator and denominator by 10 to get rid of decimals...)
y=103/6 or as a mixed number
y=17 1/6
