Let m and r represent the maximum speeds of Malcolm and Ravi in km/h, respectively.
... (m + r)/2 = 260 . . . . . the average of their speeds was 260 kph
... 2m = r + 80 . . . . . . . . double Malcolm's speed is 80 kph more than Ravi's
The second equation can be solved for r and that expression substituted into the first equation.
... 2m - 80 = r . . . . . . . . . . . an expression for r from the second equation
... (m + 2m - 80)/2 = 260 . . . the result of substituting that into the first
... 3m - 80 = 520 . . . . . . . . multiply by 2
... m = 200 . . . . . . . . . . . . . add 80 and divide by 3
... 2·200 - 80 = r = 320 . . .substitute the value of m into the expression for r
Malcolm's maximum speed was 200 km/h.
Ravi's maximum speed was 320 km/h.
Answer:
The rule for a rotation by 270° about the origin is (x,y)→(y,−x) .
Answer:
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Step-by-step explanation:
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The correct answer is option e) tempered.
Compared to the tone of Passage 2, the tone of Passage 1 is more tempered.
Passage 1 discusses recycling as a socio-cultural phenomena, whereas passage 2 is a recycling critique.
Therefore, the tone of passage 1 is a little more upbeat than that of passage 2.
As a result, we may determine that tempered is the most appropriate tone for this passage 1.
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right-handThe triangles are similar if, the ratios of their sides are equal
On the left-hand side
and in the right-hand side, we have
The left-hand side equals the right-hand side; therefore, the triangles are similar.
