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tensa zangetsu [6.8K]
4 years ago
8

How is solving 2x+c=d similar to solving 2x+1=9 for x? How are they different? How can you use x+c=d to solve 2x+1=9?

Mathematics
1 answer:
valentinak56 [21]4 years ago
3 0

Answer:

No

Step-by-step explanation:

We can't use 2x + c = d for solving 2x + 1 = 9 . Here we can find the value of x from 2x + 1 = 9.

2x + 1 =9\\=>2x=9-1\\=>2x=8\\=>x=4

Putting the value of x in 2x + c = d :-

2x+c=d\\=>2*4+c=d\\=>8+c=d

But still we don't know the exact value of c & d . If in the question at least we could have got one exact value of either c or d , then we could find out the value of other variable.

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The poetry section of the library has 6 bookcases. Each bookcase has 3 shelves. There are 10 books on each shelf. How many total
torisob [31]

Answer: total books = 180

Step-by-step explanation:

Given: Poetry section of the library has 6 bookcases.

Number of shelves in each bookcase = 3

Total shelves =  (Number of shelves in each bookcase) x (Number of bookcases in each poetry section)

= 3 x 6

= 18

Number of books in each shelf = 10

Total books = (number of shelves) x 10

= 18 x 10

= 180

hence, total books in the poetry section= 180

5 0
3 years ago
A football match started by 10.25am and ended by 1.35pm. how long did it last?​
Setler79 [48]

Answer:

The match last for 3 hours and 10 minutes.

Step-by-step explanation:

Match started at 10.25 am

Match ended at 1.35 pm

We need to find how long did the match last.

Minutes between 10.25 am to 11 am = 35 minutes

Minutes between 1 pm to 1.35 pm = 35 minutes

Time between 11 am to 1 pm = 2 hours

Time between 10.25 am and 1.35 pm is :

T = 2 hours 70 minutes

But 1 hour = 60 minutes

T = 2 hours (60+10) minutes

<em><u>T = 3 hours 10 minutes</u></em>

<em>It means the match last for 3 hours and 10 minutes.</em>

4 0
3 years ago
HELP!!!!! PLEASE!!!!!!
viktelen [127]
First one hope this helps!
6 0
3 years ago
Read 2 more answers
You increase the size of a page by 30%30%. Then you decrease it by 30%30%. What is the size of the page now?
Orlov [11]
Lets use 1 to solve this problem because it is easiest to show. 

Multiply 1 by 1.3 for a 30% increase (1*1.3=1.3). 

Then multiply 1.3 by .7 for a 30% decrease. (1.3*.7=.91)  

Therefore the page had a 9% reduction from its original size or is 91% of its original size. 
8 0
3 years ago
How to round to the naerst 10?
Blababa [14]
So, say your # was 6,234,578. you would go to the seven and look to the number next to in, so 8, and if the neighbor is 5 or bigger, you make the number, in this case a 7 an 8. Last, you make all the other #s after the one you rounded 0. So the answer would be:

6,234,570.0
3 0
3 years ago
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