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3 years ago

How Can I alive this complex problem

Mathematics

1 answer:

Nata [24]3 years ago

3 0

Percent decrease is 1-(new/old) so 1-60000/400000 or 1-0.15 or 0.85 or 85%

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The number of calories in a piece of pie is 20 less that 3 times the number of calories in a scoop of ice cream . The pie and th

arlik [135]

Let c=ice cream and p=pie
3c-20=p
p+c=500
Substitute for p.
p=130 and c=370

7 0

3 years ago

What is 4 to the 3rd power what is 2 to the 6th power 40 points btw

mezya [45]

4^3=4*4*4=64
2^6=2*2*2*2*2*2=64

3 0

3 years ago

A country population in 1991 was 231 million in 1999 it was 233 million . Estimate the population in 2003 using the exponential

Arisa [49]

P(y)=ir^t

233=231r^(1999-1991)

(233/231)^(1/8)=r

p(y)=231(233/231)^((y-1991)/8) so in 2003

p(2003)=231(233/231)^((2003-1991)/8)

p(2003)=231(233/231)^(1.5)

p(2003)=234

So 234 million (to the nearest million people)

4 0

3 years ago

Read 2 more answers

Ryan says that the sum of any two numbers is rational. Which of the following is a counterexample?

GaryK [48]

Answer: 10 + 0.998987... = 10.998987

Step-by-step explanation:

I just took the test today and this was the answer.

5 0

3 years ago

In parallelogram ABCD, AD = 12 in, m∠C = 46º, m∠DBA = 72º. Find the area of ABCD

dmitriy555 [2]

Answer:

The area of parallelogram ABCD is $78.42 \mathrm{in}^{2}$

Explanation:

Given:

AD = 12 in

$m \angle C=46^{\circ}$

$m \angle D B A=72^{\circ}$

To Find:

The area of parallelogram ABCD=?

Solution:

When we construct the parallelogram with the given data, we get a parallelogram formed by 12 cm as one side and an angle with 46 degrees.

The area of the parallelogram can be calculated by $a b * \sin (a n g l e)$

Substituting the value of a=12 we have

$\text { Area of parallelogram }=12 * \text { bsin } 46$

To find the value of b,

We know that area of a triangle can be expressed as,

$\text { Area of triangle }=(A b / 2) \sin (\text {angle})$

So,

$(12 * B D / 2) * \sin 46=(A B * B D / 2) * \sin 72$

Cancelling BD and 2 on both sides we get,

$12 * \sin 46=A B * \sin 72$

$A B=12 * \frac{\sin 46}{\sin 72}$

Therefore,

$b=\frac{12 \sin 46}{\sin 72}$

Substituting the value of b,

$=12 *\left(\frac{12 \sin 46}{\sin 72}\right) * \sin 46$

=78.42

So the area of the parallelogram is $78.42 \mathrm{in}^{2}$

6 0

4 years ago

Read 2 more answers