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Fudgin [204]
2 years ago
13

What is the unit rate

Mathematics
1 answer:
Sonja [21]2 years ago
4 0

Answer:

1 problem every 5 minutes

Step-by-step explanation:

the way you write the unit type depends on which values are on which axis.

I divided 15 by 3 and got 5

and when dividing the time by problems solved you always get 5 for the values in the table

hope this helps chu <3

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The sum of the arithmetic progression 4, ..., 76 is 1920. Find the number of terms and the common difference.​
valkas [14]

<u>Number of terms = 48</u>

<u>common difference = 1.5</u>

This question involves the concept of Arithmetic Progression.

  • The formula for sum of an arithmetic progression series with first and last term given is;

S_{n} = \frac{n}{2}(a + l)

where;

a = first term

l = last term

n = number of terms

  • From the given sequence, we see that;

first term; a = 4

last term; l = 76

Sum of A.P; S_{n} = 1920

  • Plugging in relevant values into the sum of an AP formula, we have;

1920 = \frac{n}{2}(4 + 76)

simplifying this gives;

1920 = 40n

n = 1920/40

n = 48

  • Formula for nth term of an AP is;

t_{n} = a_{1} + (n - 1)d

where;

a_{1} is first term

d is common difference

n is number of term

t_{n} is the nth term in question

the 48th term is 76

Thus;

76 = 4 + (48 - 1)d

76 - 4 = 47d

72 = 47d

d = 72/47

d ≈ 1.5

Thus;

Number of terms = 48

common difference = 1.5

Read more at; brainly.com/question/16935540

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3 years ago
Shayla is a member of the kindness club. Their nent project is called "Making Kindness Grow and each member of the
IceJOKER [234]
Even though it has not happened yet again
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3 years ago
C÷2 when c=26<br> help me, please
Jobisdone [24]

Answer:

the answer would be 13

Step-by-step explanation:

26/2=13

3 0
3 years ago
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Please help giving brainly
Irina18 [472]

Answer:

proportion used: 7/20

7emails were from the same person

Step-by-step explanation:

35/100= 7/20

7/20 of 20

20/20=1

1x7= 7

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3 years ago
Read 2 more answers
Please answer ASAP. Will reward Brainliest Answer to first, correct answer, with explanation!
Vsevolod [243]

Answer:

1.C

2.A

3.D

4.C

5.B

6.A


Step-by-step explanation:


3 0
3 years ago
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