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iragen [17]
3 years ago
7

25% of what number is 55

Mathematics
2 answers:
Oliga [24]3 years ago
5 0

Answer:

25 percent (calculated percentage %) of what number equals 55? Answer: 220.

Step-by-step explanation:

Montano1993 [528]3 years ago
4 0

Answer:

The answer is 220

Step-by-step explanation:

We have, 25% * x = 55

or,

25\100 * x = 55

Multiplying both sides by 100 and dividing both sides by 25,

we have x = 55 * 100/25

x = 220

If you are using a calculator, simply enter 55×100÷25, which will give you the answer.

HOPE THIS HELPS : )

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nekit [7.7K]
The percentage of 195/100 is 195%
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3 years ago
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A liquid at temperature 7575F is placed in an oven at temperature 450450. The temperature of the liquid increases at a rate 77 t
hichkok12 [17]

Answer: \dfrac{dT(t)}{dt}=77\times (450-T)

Step-by-step explanation:

Given

The temperature of the liquid is 75^{\circ}F placed in an oven with temperature of 450^{\circ}F.

Initially difference in temperature of the two

\Delta T=450-75\\\Rightarrow \Delta T=375^{\circ}F

According to the question

\Rightarrow \dfrac{dT(t)}{dt}=77\cdot \Delta T\\\\\Rightarrow \dfrac{dT(t)}{dt}=77\times (450-T)\quad [\text{T=75}^{\circ}F\ \text{at t=0}]

5 0
2 years ago
The ordered pairs (1,3),(3,5),(5,7) Represent a function what is a rule that represents this function
mash [69]

Answer:

(3,5),(3,1),(5,7)

Step-by-step explanation:

4 0
3 years ago
Please I need answers Factorize x²-6x+9
miskamm [114]

Answer:

The factors of the given equation are:

x^2-6x+9=(x-3)(x-3)=(x-3)^2

Step-by-step explanation:

We have :

x^2-6x+9

Using middle term splitting theorem to factorize the expression :

x^2-3x-3x+9

x(x-3)+(-3)(x-3)

(x-3)(x-3)

x^2-6x+9=(x-3)(x-3)=(x-3)^2

The factors of the given equation are:

x^2-6x+9=(x-3)(x-3)=(x-3)^2

4 0
3 years ago
Jamal draws triangle XYZ. If angle X=46 degrees, XZ = 10 degrees, and YZ=8 degrees, what is the approximate length of XY?
Mashutka [201]
<span>In triangle XYZ,
angle X=46 degrees,
XZ = 10 units and
YZ=8 units.

We will find the length of XY using cosine rule:

According to cosine rule:

a² = b² + c² - 2bc cosA (the figure is attached)
Here, A = 46 degree.
a = 8 units.
b <span>= ?
</span>c = 10 units.
</span>⇒  b² = c² - a² -2bc cosA
⇒  b² = 100 - 64 - 160*cos(46)
⇒  b² = 100 - 64 - 160*0.69
⇒  b² = 100 - 64 - 110.4
⇒  b² = 100 - 64 - 110.4
⇒ b² = 74.4
or b = 8.62 units.
or b = 8 untis approximately. 

5 0
3 years ago
Read 2 more answers
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