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padilas [110]
3 years ago
10

Can somebody plz help answer these questions correctly thanks!! (Only if u get this). C:

Mathematics
2 answers:
sergey [27]3 years ago
6 0
6. N=6
7. N=30
8. N=7
9. N=4
denpristay [2]3 years ago
6 0
6. 6:18
7. 12:30
8. 4/7
9. 4/6
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Can you please show me the work on how to divide 12.9 and 0.6 pls? Like up and down
Nadya [2.5K]
So we can put in to a fraction and times both values by ten then we can divide as shown

3 0
3 years ago
A blue whale calf weighed 2725 kilograms at birth. A blue whale calf gains 90 kilograms of weight each day for the first 240 day
Ivanshal [37]

Answer:the weight after 225 days is

22885 kilograms

Step-by-step explanation:

The initial weight of the blue whale calf at birth is 2725 kilograms. blue whale calf gains 90 kilograms of weight each day for the first 240 days after its birth. The weight increases in arithmetic progression. This means that the first term of the sequence, a is 2725, the common difference, d is 90.

The formula for the nth term of an arithmetic sequence is expressed as

Tn = a + (n - 1)d

Where

n is the number of terms of the sequence.

a is the first term

d is the common difference

We want to determine its weight, T225 after 225 days after it’s birth. It means that n = 225

Therefore

T225 = 2725 + (225 - 1)90

T225 = 2725 + 224×90 = 2725 + 20160

T225 = 22885

8 0
4 years ago
15z+35=50 what is the answer to this
Inga [223]

Answer:

z = 1

Step-by-step explanation:

15z + 35 = 50

15z = 50 - 35

15z = 15

z = 15/15

z = 1

7 0
3 years ago
Read 2 more answers
Jen factored x² - 4x - 21 as (x - 3)(x + 7) What did she do wrong?
alexgriva [62]

Answer:

She didn't put the sign's in the proper place, it should be ( x + 3 ) ( x - 7 )

Step-by-step explanation:

( x - 3 ) ( x + 7 ) = x² + 7x - 3x - 21 = x² + 4x - 21

( x + 3 ) ( x - 7 ) = x² - 7x + 3x - 21 = x² - 4x - 21

5 0
3 years ago
Read 2 more answers
So, I'm in 9th grade. We are learning slope, but I don't understand. Does anyone have a simple method that they could explain to
Mazyrski [523]
I always used rise over run. which is when you count up the y axis for run and count over on the x axis for the run. then take your rise over run and there is your slope.
5 0
3 years ago
Read 2 more answers
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