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vova2212 [387]
3 years ago
12

Add the expressions. (8x + 2) + (-9x + 3)

Mathematics
1 answer:
julsineya [31]3 years ago
3 0

Answer:

-1x+5

Step-by-step explanation:

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ms Callahan is building a new dog pen for her dog. she has 24feet of fencing. the pen needs to be a rectangle. what is the lengt
NeX [460]
If Ms. Callahan has 24 feet of fencing, and she is building a pen, the PERIMETER of the pen must be 24 feet.  The perimeter is basically the distance around a figure.  The perimeter of a rectangle is equal to length plus width plus length plus width, AKA l+w+l+w, or P=2l+2w.  In a rectangle, two pairs of sides are of equal length--so the two lengths and the two widths must be equal.

So, the formula is P=2l+2w.  P, the perimeter, is 24, so 24=2l+2w.  Let's try some values for l and see what we get for w.  If the length is 1, l=1.  24=(2*1)+2w.  24=2+2w.  22=2w.  w=11.  So if length is 1 foot, width is 11 feet.

What if l=2?  24=(2*2)+2w.  24=4+2w.  2w=20.  w=10.  If l=2, w=10.  And l=3?  24=(2*3)+2w.  24=6+2w.  18=2w.  w=9.  If l=3, w=9.  Do you see a pattern?  Every time we add 1 to l, we subtract 1 from w.  So if l=4, w=8.  If l=5, w=7.  If l=6, w=6.  Here, we start getting similar answers: if l=7, w=5.  If l=8, w=4.  Since we already know these values work, it doesn't matter whether we call it length or width.  So, our answers are below.

Answer: Ms Callahan can make a pen with a length of 1 foot and a width of 11 feet, a length of 2 feet and a width of 10 feet, a length of 3 feet and a width of 9 feet, a length of 4 feet and a width of 8 feet, a length of 5 feet and a width of 7 feet, or a length of 6 feet and a width of 6 feet.
6 0
3 years ago
Round 69.625 to the nearest whole<br> number, the nearest tenth, and the<br> nearest hundredth.
muminat

70 to the nearest whole number

69.6 to the nearest tenth

69.63 to the nearest hundredth

BRAINLIEST PLSSS

6 0
1 year ago
A ticke cost 40 dollars suppose every seat in the first ten rolls are filled what is the total revenue from those seatss
KonstantinChe [14]
If a single ticket costs 40 dollars then the ten seats will generate the following

$40 x 10= $400

7 0
3 years ago
An online camping supplies outlet charges $14 for a canteen,
Vedmedyk [2.9K]

Answer:

Part A: 14x + 2

Part B: CJ's order is $30, and Cameron's order is $58.

Step-by-step explanation:

<u>Part A:</u> The total cost of the order would be $14 multiplied by the amount of canteens, plus the shipping price of $2. This is what my expression represents.

<u>Part B:</u>

CJ's Order:

14(2) + 2 =

28 + 2

$30

Cameron's Order:

14(4) + 2 =

56 + 2 =

$58

Hope this helps! :D

3 0
3 years ago
Emma has $89 in her bank account. she uses 30% of her money to pay a bill. How much did she spend?
Alexxandr [17]
The answer is c 10% of 89 is 8.9 so multiply by 3 you get 26.70

7 0
3 years ago
Read 2 more answers
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