Answer:
4 kg
Step-by-step explanation:
Answer:
A) The ratios are both identical (3/5 and 3/5)
Step-by-step explanation:
x:-
3 = opposite
5= hypotenuse
Sin x= 3/5
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Y;-
3= adjacent
5= hypotenuse
Cos y= 3/5
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Line them up by the decimal point
Step-by-step explanation:
Given that,
a + 2b = 17
Also,
2a + b = 4
By adding the above expressions we get,
a + 2b + 2a + b = 17 + 4
3a + 3b = 21.
3 (a + b) = 21
a + b = 21/3
a + b = 7 Let us take 'b' = 10
a + 10 = 7
a = 7 - 10
a = -3
Now let's check by verifying by putting a = -3 and b = 10 in the previous expressions
a + 2b = 17
-3 + (2 × 10) = 17
-3 + 20 = 17
17 = 17
2a + b = 4
(2 × -3) + 10 = 4
-6 + 10 = 4
4 = 4
Therefore, a = -3 and b = 10 [(-3,10)] is the solution.
Answer:
Step-by-step explanation:
Everything Shoes:
E * 0.8 = 115
E = 115/.8 = $143.75
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B * 0.15 = 7
B = 7/.15
B = $46.67
