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4 years ago

Two boys on bicycles start from the same place and ride in opposite directions. One ndes

Mathematics

1 answer:

nata0808 [166]4 years ago

6 0

The sum of their speeds is (27/3) = 9 km/h.

One of them goes at 3 kmh and the other goes at 6kmh

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Help me fast!!!!!!!I need to finish this by next period

klio [65]

Answer:

-2/3

Step-by-step explanation:

Rise over run! The slope rises twice and goes over 3 times. The slope is negative so put a negative sign behind it.

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3 years ago

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There are two sets of traffic lights outside Eric's house. One day, he times how often they change. Set A turns green every 60 s

Otrada [13]

Answer:

12:07pm

Step-by-step explanation:

first common multiple of 60 and 70 is 420

420 s = 7 mins

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4 years ago

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PLASE ANSWER THIS QUESTION I GIVE YOU 18 POINTS

sukhopar [10]

Answer:

(a) 144

(b) 117

(d) 588

(e) 5472

Step-by-step explanation:

To find the LCM of two numbers, first find the prime factorization of each number. Then the LCM is the product of common and not common factors with the larger exponent.

(a)

$72 = 2^3 \times 3^2$

$144 = 2^4 \times 3^2$

$LCM = 2^4 \times 3^2 = 8 \times 9 = 144$

(b)

$39 = 3 \times 13$

$117 = 3^2 \times 13$

$LCM = 3^2 \times 13 = 117$

(c)

$72 = 2^3 \times 3^2$

$90 = 2 \times 3^2 \times 5$

$LCM = 2^3 \times 3^2 \times 5 = 360$

(d)

$84 = 2^2 \times 3 \times 7$

$147 = 3 \times 7^2$

$LCM = 2^2 \times 3 \times 7^2 = 588$

(e)

$152 = 2^3 \times 19$

$288 = 2^5 \times 3^2$

$LCM = 2^5 \times 3^2 \times 19 = 5472$

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3 years ago

Express 4037 in standard form

natima [27]

Answer:

Step-by-step explanation:

4037 in standard form

4037=4.037*10^3

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Paul [167]

yap mofos morning good

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