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Burka [1]
4 years ago
9

Whats 1 + 1? I NEED HELP IM IN COLLEGE

Mathematics
2 answers:
bulgar [2K]4 years ago
8 0
Oh god this one got me too it’s 2
alexgriva [62]4 years ago
8 0
I had to double check twice, but I’m pretty sure the correct answer is 2.
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A red candle is 8 inches y'all and burns at a rate of 7 divided by 10 inch per hour. A blue candle is 6 inches tall and burns at
lorasvet [3.4K]

Answer:

Both candles will have the same height after 4 hours.

Step-by-step explanation:

The equation for the amount of candle remaining can be given by the following equations:

Q(t) = Q(0) - at

In which Q(t) is the amount after t hours, Q(0) is the initial amount and a is how much it decreases, in inches, per hour.

Red candle:

8 inches tall and burns at a rate of 7 divided by 10 inch per hour. This means that Q(0) = 8, a = 7/10 = 0.7. So

Q_{r}(t) = 8 - 0.7t

Blue candle:

6 inches tall and burns at a rate of 1 divided by 5 inch per hour. This means that Q(0) = 6, a = 1/5 = 0.2. So

Q_{b}(t) = 6 - 0.2t

After how many hours will both candles be the same height ?

This is t when

Q_{r}(t) = Q_{b}(t)

8 - 0.7t = 6 - 0.2t

0.2t - 0.7t = 6 - 8[/yrc][tex]-0.5t = -2

Multiplying by (-1)

0.5t = 2

t = \frac{2}{0.5}

t = 4

Both candles will have the same height after 4 hours.

6 0
4 years ago
Z- (y ÷ 3 -1); y=3 z=7
ziro4ka [17]

7-(3/3-1)

7-(1-1)

7-(0)

7

6 0
3 years ago
F(x)=5-3x For x=1 And x=3
galben [10]
The answer would be -4
6 0
3 years ago
PLEASE HELP ME WITH MY MATH
Alina [70]

Answer:

Step-by-step explanation:

1)

y is 3 times more than x.

X=0 Y=0  3x0=0

X=1  Y=3

X=2 Y=6

X=3 Y=9

X=4 Y=12

Then just plot it as co-ordinates (x,y)

2)

Y is 1/4 of x. Divide by 4

X=0 Y=0

X=4 Y=1

X=8 Y=2

X=12 Y=3

X=16 Y=4

Then just plot it as co-ordinates (x,y)

8 0
3 years ago
Which would be the best sample for
vesna_86 [32]
B because it’s a random sample and it’s not biased
4 0
3 years ago
Read 2 more answers
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