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otez555 [7]
3 years ago
13

What is 30% as a fraction

Mathematics
1 answer:
maks197457 [2]3 years ago
3 0
30% as a fraction would be 3/10 ! :D
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During a week-long dry spell, the water level in a pond decreased by 4 in. Per day, except for two days when it decreased by hal
Helga [31]

Answer:

24 inches.

Step-by-step explanation:

Given:

During a week the water level in a pond decreased by 4 in. Per day,

For two days, it decreased by half that amount = 4\times\frac{1}{2}=2\ inches\ per\ day

Question asked:

How much did the water level decrease in the pond in one week?

Solution:

As we know, there are 7 days in a week.

<u>For 5 days,</u>

Each day water level decreased by = 4 inches

In 5 days, water level decreased by = 4\times5=20\ inches

<u>For exceptional 2 days:</u>

Each day water level decreased by = 2 inches

In 2 days, water level decreased by = 2\times2=4\ inches

Water level decreased in whole week = 20 + 4 = 24 inches

Therefore, water level decreased 24 inches in the pond in one week.

7 0
3 years ago
I need help again sorry-
Margaret [11]

Answer:

f(x) = - 2(x - 3)² + 2

Step-by-step explanation:

Given

f(x) = - 2x² + 12x - 16 ( factor out - 2 from the first 2 terms )

      = - 2(x² - 6x) - 16

To complete the square

add/subtract ( half the coefficient of the x- term)² to x² - 6x

f(x) = - 2(x² + 2(- 3)x + 9 - 9) - 16

     = - 2(x - 3)² + 18 - 16

     = - 2(x - 3)² + 2

4 0
3 years ago
What is the classification for this polynomial? X2y+3x3
Gre4nikov [31]

Answer:

quadratic

Step-by-step explanation:

hope you got it

7 0
3 years ago
Show work<br> please! this is due tmr
Varvara68 [4.7K]

Answer:

-120

Step-by-step explanation:

subtract 45 to both sides

m/8 = -15

multiply by 8 on both sides.

with the fraction just multiply by the bottom number to make m by itself.

m = -15*8

m= -120

4 0
2 years ago
Read 2 more answers
Determine if the relationships are linear and if so are they proportional
Tanzania [10]
Y=2-x^2
Vertex ( 0, 2 )
Focus : ( 0, 7/4 )
Axis of symmetry : x = 0
Directrix : y = 9/4

8 0
2 years ago
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