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olga55 [171]
3 years ago
10

7th grade math help me plzzz

Mathematics
1 answer:
matrenka [14]3 years ago
8 0

Answer:

a. -14

b. -150

c. -51

d. -2

e. 3

f. 5

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Which property is used to simplify the expression 5(3x +18) to 15x+90
natka813 [3]

Answer:

Distributive

Step-by-step explanation:

You distribute the 5 into 3x+18, multiplying it by each part of the equation (each part is separated by one of these signs: +, -, x, or /) to get 15x (from 5 x 3x) plus 60 (from 5 x 18).

6 0
3 years ago
How many seconds are in 76 minutes
Kipish [7]

Answer:

4560

Step-by-step explanation:

Well, first we need to understand how different time formats (for lack of a better word) are related in terms of seconds.

1 minute has 60 seconds

I hour has 3600 seconds

1 day has 86400 seconds

1 week has 604800 seconds

Now, with this information at hand, you can find out how many seconds are in X minutes or X days or X months or a year (and so on).

As for your question, we know that one minute has 60 seconds therefore 76 minutes will have (76x60) seconds

5 0
3 years ago
Read 2 more answers
Someone help. (Find the area of a rectangle with a lenght of 5a^2 b^4 and a width of (3ab^3)^2
Dmitry_Shevchenko [17]

Answer:

All you do is just multiply them.

Step-by-step explanation:

5a^2 b^4(3ab^3)^2=

45(a^(4))(b^(10))

3 0
3 years ago
HELP PLEASE!! this is 8th grade math btw
natima [27]

Answer:

the 2nd one

Step-by-step explanation:

5 0
3 years ago
URGENT MATH HELP DUE BY 12:00 PM!
Sedaia [141]
I think D is the correct answer.
3 0
3 years ago
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