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natita [175]
3 years ago
13

Minne lives 200 miles away from her grandmother. It took her 5 hours to drive this distance. Write an equation that can be used

to find R, the rate of travel??
Mathematics
2 answers:
Hunter-Best [27]3 years ago
7 0
That way i need help
Leno4ka [110]3 years ago
6 0

The rate of travel, or speed, is

200 miles

--------------- = 40 mph

5 hours

Recall that distance = rate times time, so that rate = distance / time.



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Each sequence below gives an explicit formula. Write the first five terms of each sequence. Then, write a recursive
Bas_tet [7]

Answer:

The first five values are 12, 14, 16, 18 and 20

The recursive formula is as follow

\left \{ {{a_{1} =12} \atop {a_{n} =a_{n-1} } + 2} \right.

Step-by-step explanation:

Since we need to find the first 5 values  we start with n = 1 to n = 5. Note that we don't start from n = 0 as the question states that  n ≥ 1.

For the first 5 values we just replace the value of n with 1, 2, 3, 4 and 5 and calculate the answer

a_{1}  = 2(1) + 10 = 12\\ a_{2} = 2(2) + 10 = 14\\  a_{3} = 2(3) + 10 = 16\\  a_{4} = 2(4) + 10 = 18\\ a_{5} = 2(5) + 10 = 20

The first five values are 12, 14, 16, 18 and 20

A recursive formula is one that

a) Mentions the initial term

b) provides a formula connecting the previous term to the existing term.

Since we know the first term is 12, i.e a_{1} = 12 and we know that the difference between consecutive terms is 2 we can conclude that the recursive formula is made up of the following two formulas

a_{1} = 12

a_{n} = a_{n-1}  + 2

The over all formula is as follow

\left \{ {{a_{1} =12} \atop {a_{n} =a_{n-1} } + 2} \right.

8 0
3 years ago
A knife is three times the cost of a spoon. 9 spoons and 12 knifes cost ?82.80 workout the cost of 1 knife.
tankabanditka [31]

Let S = spoon

Let K = knife


1 knife is thee times the cost of a spoon, so it would be 3S

Now you have 9S + 12K = 82.80

We can replace the K with 3S:

9S +12(3S) = 82.80

Simplify the left side:

9S + 36S = 82.80

Add:

45S = 82.80

Divide both sides by 45"

S = 82.80 / 45

S = 1.84

One spoon cost $1.84


We know one knife cost 3 times as much, so multiply the cost of a spoon by 3:

Knife = 1.84 x 3 = $5.52

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4 years ago
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Write 7.08 x 10 -4 in standard notation
MakcuM [25]

Answer:

it's 0.000708

Step-by-step explanation:

Thank you come again

4 0
3 years ago
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Which of the following is the best description of the graph below?
Alinara [238K]

full question

there are no graphs

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What is the slope of the line that passes through the points (4,8) and (8,6)? Write your answer in the simplest form
Lana71 [14]
Hey !

Slope = 6-8/8-4 = -2/4 = -1/2 = -0.5
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