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fenix001 [56]
2 years ago
15

What is 13.250 as a decimal help this is due in 10 minutes

Mathematics
2 answers:
Basile [38]2 years ago
8 0

Answer:

it already is a decimal????

Leno4ka [110]2 years ago
4 0

Answer:13.250

Step-by-step explanation: To write 13.250 as a decimal you have to divide numerator by the denominator of the fraction.

13.250 is not a fraction so it is a decimal already.

And finally we have:

13.250 as a decimal equals 13.250

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X - 13 = x + 1 is it true
natulia [17]

Answer:

No it is wrong

Step-by-step explanation:

let's say the number is 15 is a substract 13 I get 2 but let's take 15 again of I add one I have 16 so it's incorrect

7 0
2 years ago
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A variable needs to be eliminated to solve the system of equations below. Choose the
sasho [114]

Step-by-step explanation:

-4x - 2y = 18

+ (4x - 4y = -36)

=> -6y = -18, y = 3

As we added the equations together, we have eliminated x and found y.

Hence the correct answer is "Add to eliminate x".

4 0
2 years ago
A medication with an initial concentration of 1. 5 milligrams per liter is administered to a
lesya [120]

Answer: Exponential decay model:

y

=

x

(

1

−

r

)

t

, half life of tablet is about

2

hours and after

t

=

3

hours , remaining drug on patient's system is

42.875

mg.

Step-by-step explanation: Initial drug

x

=

125

mg ; rate of decay

r

=

30

100

=

0.3

gm/hour

Exponential model:

y

=

x

(

1

−

r

)

t

=

125

(

1

−

0.3

)

t

=

125

⋅

0.7

t

Half life:

y

=

125

2

=

62.5

mg

∴

62.5

=

125

⋅

0.7

t

or

0.7

t

=

1

2

. Taking logarithm on both sides we get ,

t

log

(

0.7

)

=

log

(

0.5

)

∴

t

=

log

(

0.5

)

log

(

0.7

)

≈

1.94

(

2

d

p

)

hour

The half life of tablet is about

2

hours.

After

t

=

3

hours , remaining drug on patient's system is

y

=

125

⋅

0.7

t

=

125

⋅

0.7

3

=

42.875

mg [Ans]

8 0
2 years ago
Please thebecks please
sweet-ann [11.9K]

Answer:

1.8

Step-by-step explanation:

If we know Xin ordered 5 identical pieces of bread, this must mean that each one weighs the same

By dividing the 9 pounds with 5 (the amount of bread) we will get 1.8

So each bread is 1.8

but if u want to check the answer then we can multiply 1.8 with the 5 loaves of bread and it will result in 9

5 0
3 years ago
Write the equation of the line that passes through the given point and is perpendicular to the given line. Your answer should be
kvasek [131]

Answer:

y = 7x/8 - 53/8

Step-by-step explanation:

P(3,-4)

x = -7y/8 + 3

Isolate y and translate to slope-intercept form:

y = mx + b

x = -7y/8 + 3

x - 3 = -7y/8

8x - 24 = -7y

y = -8x/7 - 24/7

The slope of the equation is -8/7

The slope of the new equation will be perpendicular to the slope of the given equation which means it is the negative reciprocal.

y = mx + b where m = -1/(-8/7) = 7/8

y = 7x/8 + b

Plug in know values and solve for b:

-4 = 7(3)/8 + b = 21/8 + b

-4 - 21/8 = b

b = -32/8 -21/8 = -53/8

Plug in b into the equation:

y = 7x/8 - 53/8

7 0
3 years ago
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