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frutty [35]
2 years ago
5

Two airplanes, which start 3{,}3003,3003, comma, 300 miles apart, fly toward each other. The two planes fly at a constant speed,

but their speeds differ by 808080 miles per hour (\text{mph})(mph)(, start text, m, p, h, end text, ). After 555 hours, the planes pass each other. What is the speed of the faster plane
Mathematics
1 answer:
castortr0y [4]2 years ago
4 0

Answer:

distance=rate*time

2520=(r)(3)+(r+90)(3)    (they both travel for 3 hours)

2520=3r+3r+270

2520-270=6r

2250=6r

r=2250/6

r=375 mph

r+90=375+90=465 mph

Step-by-step explanation:

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Answer:

\frac{3}{4}

Step-by-step explanation:

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Probability,P(E)=\frac{favorable\;cases}{total\;number\;of\;cases}

Using the formula

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The probability of selecting a red disk,given that an odd numbered disk is selected=\frac{\frac{3}{8}}{\frac{1}{2}}=\frac{3}{8}\times 2=\frac{3}{4}

Using conditional probability

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I need help , I keep coming up with the wrong answers!
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Answer:

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Step-by-step explanation:

First of all, write the equation in standard form. Then identify a, b, c and fill in the values in the formula.

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