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LenaWriter [7]
3 years ago
8

I need help with the problem

Mathematics
2 answers:
mamaluj [8]3 years ago
8 0
The answer is 357 miles. It is never asking how long or how many hours it took, it just says how many miles are left. What I did to get this answer is 400 - 43.

Kobotan [32]3 years ago
7 0
There are 99 miles left.  43(7)=301.   400-301=99.
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Lanaiya sold half of her comic books and then bought 9 more. If she now has 81 comic books, how many comic books did she begin w
Allushta [10]

Answer:

144

Step-by-step explanation:

(81 - 9) * 2 = 144

work backwards, you now have 81 books. But you bought 9, so pretend you didn't buy the 9, means you would have 9 less books. so 81-9.

Then you multiply by 2 because originally you sold half of the books, so before you sold half, you had double the amount, so you multiply that by 2.

7 0
3 years ago
A rectangle has a perimeter of 12 x + 8y. If one side of the rectangle is 4x-2y, write expression of the other side.
Alona [7]

Answer:

The expression of the other side of the rectangle = 2x + 4y + 25

Step-by-step explanation:

The Perimeter of the rectangle is 12 x + 8y

The one side of the rectangle is 4x - 25

Let the other side of the rectangle be S

Now, the PERIMETER OF THE RECTANGLE = 2 ( SUM of BOTH SIDES)

⇒  12 x + 8y =  2(S + (4x - 25))

or, 12 x + 8y =  2S +  8 x - 50

or, 12 x + 8y - 8x + 50 = 2S

⇒ 4x + 8y + 50 = 2S

or, S = 2x + 4y + 25

Hence, the expression of the other side of the rectangle = 2x + 4y + 25

8 0
3 years ago
What is the answer to this question
Ivanshal [37]
90°
because it is a square so each corner is 90°
4 0
3 years ago
ILL BRAINLIEST YOU IF YOU PLEASE HELP ME
svp [43]

Step-by-step explanation:

this will be solved by Pythagoras theorem

so 8²+14²=ab²

so 65+196=ab²

261=ab²

ab= 16.155

rounding 16.2

pls give me brainliest I need it

3 0
3 years ago
HELPPPP IN NEED HELPPPPP
ryzh [129]
It’s just any number under lower then 7 I’m pretty sure
8 0
3 years ago
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