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2 years ago

What can I learn in finding the sum of consecutive numbers?

Mathematics

1 answer:

Helga [31]2 years ago

8 0

Answer:

By using Carl Gauss's clever formula, (n / 2)(first number + last number) = sum, where n is the number of integers, we learned how to add consecutive numbers quickly. We now know that the sum of the pairs in consecutive numbers starting with the first and last numbers is equal.

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Ten more than three times a number n is forty. How do you write this as an equation, plz i need help.

Alenkasestr [34]

It’s 40 because 10>3n=40

6 0

3 years ago

On a map of a town, 3 cm represents 150 m. Two points in the town are 1 km apart. How far apart are the two points on the map?

dmitriy555 [2]

Answer:

5000 km

Step-by-step explanation:

We are given that

3 cm represents on a map of a town=150 m

Distance between two points=1 km

We have to find the distance between two points on the map.

3 cm represents on a map of a town=150 m

1 cm represents on a map of a town=150/3 m

1 km=1000 m

1 m=100 cm

$1km=1000\times 100=100000 cm$

100000 cm represents on a map of a town

= $\frac{150}{3}\times 100000$ m

100000 cm represents on a map of a town=5000000 m

100000 cm represents on a map of a town

= $\frac{5000000}{1000} km$

100000 cm represents on a map of a town=5000 km

Hence, two points are separated by 5000 km on the map.

6 0

2 years ago

What does solve w mean

cestrela7 [59]

It means to most likely isolate the variable and you should have something like w= or a number =w

6 0

2 years ago

Which set of ordered pairs could represent a function? (2, 3), (2, 2), (2, 4), (2, 9), (2, –2) (1, 5), (2, 6), (1, 6), (4, 5), (

Ratling [72]

Given:

The set of ordered pairs in the options:

(a) (2, 3), (2, 2), (2, 4), (2, 9), (2, –2)

(b) (1, 5), (2, 6), (1, 6), (4, 5), (1, 4)

(d) (5, 1), (7, 3), (9, 5), (11, 7), (13, 9)

To find:

The set of ordered pairs that could represent a function.

Solution:

A set of ordered pairs represent a function, if there exist unique output (y-value) for each input (x-value).

In option (a) we have, five output values y=3,2,4,9,-2 for single input x=2. So, it is not a function.

In option (b) we have, three output values y=5,6,4 for single input x=1. So, it is not a function.

In option (c) we have, two output values y=0,3 for single input x=1. So, it is not a function.

In option (d), all inputs has unique output.

Therefore, the correct option is (d).

4 0

2 years ago

Read 2 more answers

Romashka-Z-Leto [24]

Discrimination 100 the real answer is that and it will not make since at dirt but it is have a good day

6 0

3 years ago