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3 years ago

work out three numbers that are in both sequences and between 20 and 40 write the numbers on a single line

Mathematics

1 answer:

zhannawk [14.2K]3 years ago

8 0

Answer:

The nth term of a sequence is 2n + 1

The nth term of a different sequence is 3n ï€ 1

Work out the three numbers that are

in both sequences

and

between 20 and 40

Now the three numbers I managed to get are 25, 31 and 37 (as I assumed it meant the output of both of these sequences needs to be the same as well as being in between 20 and 40). For example 2x18+1= 37 as does 3x12+1= 37

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There are 120 students in class 7. it is known that 2 3 out of them like maths, out of which 35 are girls. also, out of total st

Bas_tet [7]

maths questions can be solved using unitary method.

Answer:

(a) The total number of girls in the class are 48

(b) The total number of students that like maths are 80

Solution:

According to the question, $\frac{3}{5}$ of total students are boys

number of boys = $\frac{3}{5}$ × 120 = 72

Also, According to the question, $\frac{2}{3}$ of total students like maths

number of students = $\frac{2}{3}$ × 120 =80

(a) The total number of girls in the class = total number of students - total number of boys

total number of girls in the class = 120 - 72 = 48

(b) The total number of students that like maths are 80

(c) The total number of boys like maths = total number of students that like maths - total number of girls that like maths

total number of boys like maths = 80 - 35 = 45

What is unitary method?

The unitary approach is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.

know more about similar unitary method numericals

brainly.com/question/17092435

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5 0

1 year ago

A big-screen TV that previously sold for $2,400 has been marked down to $2,040. What is the percent of decrease?

Hitman42 [59]

[~Answer~] (8.):
Heyyy. I'm Avery, and I'm always here to help!

I believe the percent may be 15% ($2,400 - 15% = $2,040)

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[~Answer Explanation~}:

The percent of the difference is the rate of the difference * 100%

the percent of the difference = .15 * 100% = 15%

since the new price is less than the old price, that is the percent of the decrease.

(See if it'll work): $2,400- 15% = $2,040

And there's your answer <33

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[~Last Messages~}:

Hope this helped you <333
Bye!

[-!AveryIsSomeHowAlive!-]

"Just call me and I will be there :)"

3 0

2 years ago

Help help help help help help

emmainna [20.7K]

Answer: 6

Step-byStep:

[(18- 8) x 3) + (4+3) x 6] divided by 12

step 1- start with the stuff in the parentheses

[(10 x 3) + (7 x 6)] divided by 12

step 2- simplify things in parentheses

[30 + 42] divided by 12

step 3- simplify even more

[72] divided by 12

step 4- remove brackets, and simply even further

72 divided by 12 = 6

Hope this helps

6 0

3 years ago

Read 2 more answers

Whats 20 divided by one fourth

alukav5142 [94]

20 ÷ 1/4

20 × 4/1

= 80

7 0

2 years ago

Slope of (-20,9) (14,9)

skelet666 [1.2K]

Y2-y1/x2-x1 is slope so

9-9/14-(-20) so you get 0/34 which means there is no slope since they have the same y (the equation would be y=0x+9 therefore y=9)
Which makes sense since the equation is a straight line

3 0

2 years ago