Let x be the amount of cement and y be the amount of sand. If <span>the ratio of cement to sand for mortar is 1:3, then
and y=3x.
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So, if <span>Sandy puts in x=7 shovels of cement, then she puts
shovels of sand.
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</span><span>
Answer: 21 shovels of sand.
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Answer:
A: 6 boxes right, 9 boxes down, 9 boxes left, connect back to start.
B: 3 boxes right, 9 boxes up, (diagonal 6 right, 12 down), 9 boxes up, 6 boxes right.
C: 1 box right, 2 boxes down, 1.5 boxes right, 1 box up, .5 box right, 2.5 boxes down, 3 boxes left, 3.5 boxes up to connect.
D: (diagonal 1 up, 1 right), 1 box right, (diagonal 1 down, 1 right), 1 box down, (diagonal 3 down, 3 left), 3 boxes left
Step-by-step explanation:
The formula is
A=p e^rt
A future value 1649
P present value 100
R interest rate?
T time 10 years
E constant
Solve the formula for r
R=[log (A/p)÷log (e)]÷t
R=(log(1,649÷100)÷log(e))÷10
R=0.28×100
R=28%
First take out the GCF which is 4x
4x (x^2 - 3x - 10) = 0
4x(x - 5)(x + 2) = 0
4x = 0 so x = 0
x - 5 = 0 so x = 5
x+2 = 0 so x = -2
zeros are -2, 0 and 5
