2 years ago

Answer part B please

Mathematics

2 answers:

asambeis [7]2 years ago

5 0

1.5 I think sorry if I’m wrong but I hope this helps

oksano4ka [1.4K]2 years ago

4 0

1:5

Steps:
1. Add all the numbers
2. Take Derek’s number of votes and turn step 1’s answer and Derek’s number of votes into a ration:
3. You will now have 36:180
4. Simplify by a number they both share (36).
5. Your new simplified answer would be 1:5.

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An article which cost money 150 was sold at a loss of 5%.what was the selling price?

Hunter-Best [27]

Answer:

142.5

Step-by-step explanation:

150/x=100/95

95*150/100=

142.5

3 0

2 years ago

If a+b=5 and a-b=4 then b^2-a^2 =

Anna007 [38]

Answer:

$a + b = 5 \\ a \: = 5 - b \\ a - b = 4 \\ 5 - b - b = 4 \\ 5 - 2b = 4 \\ 5 - 4 = 2b \\ 1 = 2b \\ \frac{1}{2} = \frac{2b}{2} \\0.5 = b \\ b = 0.5 \\ a = 5 - b \\ = 5 - 0.5 \\ = 4.5 \\ {a \: }^{2} - {b}^{2} = ( {4.5}^{2}) - ( {0.5}^{2} ) \\ = 20.25 - 0.25 \\ = 20 \\ {a}^{2} - {b}^{2} = 20$