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Wewaii [24]
3 years ago
5

It takes Francisco 15 minutes to ride his bicycle 4km ,which is the distance from home to school . What is the average speed

Mathematics
1 answer:
NARA [144]3 years ago
3 0

Answer:

16 KMH is the correct answer

Step-by-step explanation:


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1. The sum of first n terms of an arithmetic sequence is 3n²+4n
valentina_108 [34]

Answer:

<h3>           a.  a₁=7,     b.  a_n=7n+1,    c.  a₂₀=141</h3>

Step-by-step explanation:

a.

 a_1=S_1=3\cdot1^2+4\cdot1=3+4=7

b.

   a_1+a_2=S_2\\\\a_1+a_1+d=3\cdot2^2+4\cdot2\\\\7+7+d=3\cdot4+8\\\\14+d=12+8\\\\d=6\\\\\\a_n=a_1+d(n-1)\\\\a_n=7+6(n-1)\\\\a_n=7+6n-6\\\\\underline{a_n=7n+1}

c.

 a_{20}=7\cdot20+1=141

5 0
3 years ago
The side length of a smaller square is one-fourth the side length of a larger square. Which of the following statements describe
evablogger [386]

Answer: B

Step-by-step explanation:

5 0
3 years ago
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5. A factory produces 1000 cans of juices in 5 days. How many cans will it produce in 15<br> days?
solniwko [45]

Answer:

3000

Step-by-step explanation:

6 0
2 years ago
I need Help ASAP PLS, WILL FAN AND MEDAL  79 POINTS IF ANSWER
Alenkinab [10]
Okay, i went with a rectangle, if the rectangle base is 12 and the height is 6 then it would be 12*6 + 12*6 + 12*6= 216 now the ratio is easy , 72:72 because that's what makes up the 12*6 and because there is 3 it's 72 two times now for part b 5 x 10 so that is the height and length so now what you want to do is do what you did the second time so it would be 72:50.
Extra tips: To find the volume of any cube you need to know the length, width and height. The formula to find the volume multiplies the length by the width by the height. The good news for a cube is that the measure of each of these dimensions is exactly the same. Therefore, you can multiply the length of any side three times.
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How can I the Find the value of x
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