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3 years ago

The number 78 is divisible by 2 and 3. True False

2 answers:

7 0

2) 78 (38                            3) 78 (26
   -6                                       -6
____                                   ____
    18                                       18
   -18                                      -18
____                                   _____
      0                                         0

True, 78 is divisible by 2 and 3.

vladimir1956 [14]3 years ago

4 0

True, the number 78 is divisible by both 2 and 3.

78/2 = 39

78/3 = 26

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mezya [45]

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3 years ago

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Write a function rule to represent the sequence 0.3,0.9,1.5,2.1 PLease help

liraira [26]

The rule for sequence is:

$a_n=0.3+(n-1)(0.6)$

Step-by-step explanation:

To write the function rule, we have to check first whether it is an arithmetic sequence or geometric sequence

We have to find the common difference first. Common difference is the difference between two consecutive terms of a arithmetic sequence.

So,

Here

$a_1=0.3\\a_2=0.9\\a_3=1.5\\a_4=2.1\\d=a_2-a_1=0.9-0.3=0.6\\a_3-a_2=1.5-0.9=0.6$

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$a_n=a_1+(n-1)d\\$

Putting the values of d and a_1 we get,

$a_n=0.3+(n-1)(0.6)$

Hence,

The rule for sequence is:

$a_n=0.3+(n-1)(0.6)$

Keywords: Functions Rule, Arithmetic sequence

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3 years ago

The length of the blue ribbon is two-thirds the length of the red ribbon. Write an equation to find the length r of the red ribb

vladimir2022 [97]

The equation to find the length r of the red ribbon is:

$r = \frac{3b}{2}$

Solution:

Let "b" be the length of blue ribbon

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The length of the blue ribbon is two - thirds the length of the red ribbon

Which means,

$\text{Length of blue ribbon } = \frac{2}{3} \times \text{ length of the red ribbon }$

Therefore,

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3 years ago

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lana [24]

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4 years ago

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kumpel [21]

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