Question

Which correctly explains how to solve this problem?

A number is multiplied by 2. Eight is added to the product. This sum is then divided by 5. The answer is 8.

What was the original number?

A.
Start with 8. Multiply 8 by 5. Then add 8 and multiply the answer by 2.

B.
Start with 8. Add 8 and 5. Then subtract 8 and multiply the answer by 2.

C.
Start with 8. Multiply 8 by 5. Then subtract 8 and divide the answer by 2.

Answer 1

@texaschic101

Answer 2

@inkyvoyd

Answer 3

@flower2468

Answer 4

coc please do not give out direct answers but guide me to the correct answers

Answer 5

@mathmale

Answer 6

HI!!

Answer 7

hi

Answer 8

A number is multiplied by 2. Eight is added to the product. This sum is then divided by 5. The answer is 8.

lets call the number \(N\) for "number"

Answer 9

how to you write "N times 2" in math?

Answer 10

N*2

Answer 11

yes, although most math teachers will write "\(2N\)" but same thing

Answer 12

oh,okay

Answer 13

then how do you write \(2N\) plus 8?

Answer 14

2N+8

Answer 15

got it

Answer 16

um so its c?

Answer 17

I'm so confused

Answer 18

slow down, we are not there yet, we are still writing the equation
forget about a,b,c,d lets just do it

Answer 19

how do you write \(2N+8\) divided by 5?

Answer 20

2N+8/5

Answer 21

ok so now we know that is equal to 8 so the equation is \[\frac{2N+8}{5}=8\]

Answer 22

now lets solve it
which we do by working backwards (the point of this question)

Answer 23

Okay, Still lost in confussion

Answer 24

keep in mind, the SUM is divided by 5

Answer 25

thxs tht helped

Answer 26

don't worry about being lost, you are learning this
you already answered all the important questions, don't psych yourself out
you are not supposed to know the answer instantly

Answer 27

okay

Answer 28

so what are the steps to solve \[\frac{2N+8}{5}=8\]? what would the first step be?

Answer 29

um

Answer 30

multiply

Answer 31

as judge judy says "um" is not an answer
yes, multiply both sides by 5
i) multiply by 5

Answer 32

um, 5*5?

Answer 33

that would give \[2N+8=8\times 5\\
2N+8=40\]

Answer 34

once you have \[2N+8=40\] what would the next step be?

Answer 35

divide

Answer 36

actually you could divide, you could divide both sides by 2, but that is an extra step, and not what your math teacher wants you to say

Answer 37

ok

Answer 38

so lets start again with \[2N+8=40\] and you want to get N by itself, which will take two steps

Answer 39

ugh

Answer 40

first step, subtract 8 from both sides, that puts all the numbers on the right

Answer 41

um...........

Answer 42

Puzzled* Lost in confussion*

Answer 43

I'll just guess

Answer 44

I think it's a

Answer 45

you have a choice here, you can think "this is impossible, it is too hard for me, i will complain about being confused, hate math, fail" or you can think " i can learn this, it can't be that hard"

Answer 46

I think it's a

Answer 47

or you can just guess what the answer is because it is multiple choice

Answer 48

a

Answer 49

ok guess A

Answer 50

is that correct?

Answer 51

it is not right, but it is certainly a guess

Answer 52

b then

Answer 53

@flower2468

Answer 54

well she didn't help

Answer 55

Which strategy best explains how to solve this problem?

Kent is planting rows of seeds in the community garden. He plants 5 seeds in his first row, 11 seeds in his second row, and 17 seeds in his third row.

Using the same pattern, how many seeds will Kent plant in his 7th row?

A.
Make a table.
Write the numbers 1, 2, 3, 4, 5, 6, 7 in the top row of the table (the number of rows). In the first box on the second row write 5, in the second box write 11, and in the third box write 17. Look for the pattern. Fill in the rest of the table using the same pattern.

Answer 56

@Qwertty123

Answer 57

please help me flower the tutor i just had did not help me

Answer 58

@Qwertty123

Answer 59

B.
Guess and test.
Guess 38 seeds in the 7th row. Divide 38 by the number of seeds in each row. If the answer is not 7, revise your guess, and test your answer again.

C.
Translate into a number sentence.
(1 × 5) + (2 × 11) + (3 × 17) =
Calculate the number of seeds in each row and add them all up.

Answer 60

SOMEONE HELP! PLEASE?

Answer 61

ugh!!!!

Answer 62

@mathmale

Answer 63

Never mind I will just guess

Answer 64

okay It a

Answer 65

Please post (separately) the problem you're working on.
Please be careful about taking out your frustration on others when you don't understand something. As I see it, misty1212 worked hard to help you.