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3 years ago

2=6 3=12 4=20 5=30 6=42 9=?

1 answer:

4 0

It is a pattern so 2*3=6
3 times 4 is 12
4 times 5 is 20
5 times 6 is 30
6 times 7 is 42
so, 9 times 8 is 72.

please vote as brainliest

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Need help asap! Pls

Stels [109]

Answer:

Step-by-step explanation:

The upper right angle is supplement to 130° and a corresponding angle to (3x + 5)

130 + (3x + 5) = 180

3x + 5 = 50

3x = 45

x = 15

8 0

3 years ago

I NEED A MATH WIZ!

valentinak56 [21]

So each of these statements are talking about the square footage of land per person. Let's go and find it!

First off, let's find the number in each building of the original complex:
280 people / 4 buildings

Each building has an equal number of residents. So just divide:
280/4 = 70.

So 70 residents per building

Now consider the fact that once a new building is built, another 70 people will move in.
280 + 70= 350

350 people total.

Then lets look at the plot of land
Originally, there are 200,000 square feet of land for the 4 buildings. Then after the expansion, the plot of land will be:
200,000 + 200*200
= 200,400

Go back to the question. What's the effect of the expansion in terms of square feet of land per person?
Divide!
200,400 / 350
Approximately = 572.57 square feet

Then since it's being compared to the amount each resident had before the expansion, do the same thing with the corresponding numbers:
200,000 / 280
Approximately = 714.29

So how much will each person's land decrease?
714.29 - 572.57 approximately = 141.72 square feet.

The answer is the first choice!

Hope this helps

4 0

3 years ago

Decide!!!!!!!!!!!!!!!!

ikadub [295]

Answer:

6 + 5 = 11

Step-by-step explanation:

6 + 2 = 4, given

2 → 5, move two matchsticks, #10 and #12
4 → 11, move one matchstick, #18

6 + 5 = 11, correct

4 0

3 years ago

Need explaining ASAP I’m in year 4

ZanzabumX [31]

Answer:

first one is 30 5 40

35 25 15

10 45 20

second one is 5 26 11

20 14 8

17 2 23

third one is 9 16 11

14 1210

13 8 15

and forth one is 20 70 60

90 50 10

40 30 80

Step-by-step explanation:

which ever direction you know 2 of 3 numbers, you add them and subtract the sum its supposed to add up to. rough explanation

3 0

3 years ago

Jim has $310 in his savings account and adds $4 per week. At the same time, Rhonda has $260 in her savings account and adds $9 p

Talja [164]

Answer:

a) After 10 weeks Jim and Rhonda will have the same amount.

b) They both would have $350 in their account after 10 weeks.

Step-by-step explanation:

Given:

Amount Jim has = $310

Amount Jim adds per week = $4

Let the number of weeks be 'x'.

So we can say that;

Total amount Jim will have after 'x' week will be equal to amount Jim has plus amount Jim adds per week multiplied by number of weeks.

framing in equation form we get;

Total amount Jim will have after 'x' week = $310+4x$

Also Given:

Amount Rhonda has = $260

Amount Rhonda adds per week = $9

So we can say that;

Total amount Rhonda will have after 'x' week will be equal to amount Rhonda has plus amount Rhonda adds per week multiplied by number of weeks.

framing in equation form we get;

Total amount Rhonda will have after 'x' week = $260+9x$

a) We need to find the number of weeks in which the both will have same amount;

Now to find number of weeks in which the both bill have same amount;

we have to make both the equation equal and solve the same we get;

$310+4x =260+9x$

Combining the like terms we get;

$9x-4x=310-260\\\\5x=50$

Now using Division property of equality we will divide both side by 5 we get;

$\frac{5x}{5}=\frac{50}{5}\\ \\x =10$

Hence After 10 weeks Jim and Rhonda will have the same amount.

b) We have to find amount they would have after 10 weeks.

To find the same we will substitute value of 10 in each equation we get;

Total amount Jim will have after '10' weeks = $310+4x = 310+4\times10 =310 +40 =\$350$

Total amount Rhonda will have after '10' weeks = $260+9x = 260+9\times 10 =260+90 =\$350$

Hence They both would have $350 in their account after 10 weeks.

7 0

3 years ago