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mariarad [96]
4 years ago
9

Please help asap 30 pts

Mathematics
2 answers:
jok3333 [9.3K]4 years ago
7 0

Answer:

last one: 20

Step-by-step explanation

4*5 + 7*-3 +3*5 - 2*-3

20 + -21 + 15 - -6

-1 + 15 - -6

-1 +15 + 6

14 + 6

20



motikmotik4 years ago
5 0

Answer:

20 or D.

Step-by-step explanation:

You simply plug in the values given for a and b:

4(5)+7(-3)+3(5)-2(-3) = 20-21+15+6=20

So, your answer is 20.

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lilavasa [31]

Answer:

The given equation is

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→ \frac{y}{x} = \frac{3}{7}

reciprocating both sides, we get

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Or , \frac{x}{y} = k  ............................(2)

Equating (1) and (2),

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