Question

7th grade
Equations Involving Multiplication and Division
5 questions Help
Medal
note that the questions are in attachment

Answer 1

Question 1)
please in which equation, both sides are divided by a same quantity?

Answer 2

i am so confused @Michele_Laino I have no idea what u are in terms with" please in which equation, both sides are divided by a same quantity?"

Answer 3

please I'm referring to your first post

Answer 4

Here is question 5

Answer 5

I dont know what it mean

Answer 6

mean***

Answer 7

please consider the subsequent equation:
\[f \cdot 8 = 40\]
then please divide both sides by 8, what equation do you get?

Answer 8

c

Answer 9

so what is your option?

Answer 10

c??

Answer 11

that's right!

Answer 12

May i please have help with the rest

Answer 13

brb

Answer 14

ok! Let's go to the your second question.
Please consider the subsequent equation:
\[n \cdot 0.4 = 8\]
then please divide both sides by 0.4, what equation do you get?

Answer 15

oops...let's go to your second...

Answer 16

back

Answer 17

it would be much less confusing and a lot more helpful if the questions were posted one at a time

Answer 18

oh sorry

Answer 19

a???

Answer 20

no, since in a) there is a sum not a division

Answer 21

ohhhhh d or c

Answer 22

i thought d

Answer 23

that's right!

Answer 24

-4 for #3

Answer 25

Next, let's go to your third question, please.
Please divide both sides of the subsequent equation by 11:
\[11d = - 44\]

Answer 26

yes! that's right!, d= -4

Answer 27

Question #4
please multiply both sides of this equation by (-3):
\[ - 12 = \frac{y}{{\left( { - 3} \right)}}\]
what do you get?

Answer 28

positive 36 # 4

Answer 29

ok! now please multiply both sides of this equation by -5/2:
\[ - 4 = - \frac{2}{5}z\]
what do you get?

Answer 30

negitave 2.5

Answer 31

brb

Answer 32

hint:
please what is:
\[\left( { - 4} \right) \cdot \left( { - \frac{5}{2}} \right) = ...?\]

Answer 33

hint:
\[\left( { - 4} \right) \cdot \left( { - \frac{5}{2}} \right) = \left( { - 1} \right) \cdot \left( { - 1} \right) \cdot 4 \cdot \frac{5}{2} = \left( { + 1} \right) \cdot 4 \cdot \frac{5}{2} = ...?\]

Answer 34

furthermore, for your question #5, please you have to multiply both sides of this equation by -4:
\[\frac{k}{{ - 4}} = - 0.8\]
what do you get?