All categories

3 years ago

What is 87+x=100? A. 13 B.41 C. 11 D. 20

Mathematics

2 answers:

Leto [7]3 years ago

8 0

Hey there!

When we solve for x, we need to isolate x on one side.

This is just a one-step equation, meaning there is only one thing we need to do to solve for x, or isolate x.

Starting with 87 + x = 100:

Subtract 87 from each side.

87 - 87 + x = 100 - 87

Simplify. Subtracting 87 from 87 makes it equal to 0.

x = 13

Your answer is A. 13.

Hope this helps!

Gre4nikov [31]3 years ago

5 0

Hello!

The answer to the problem is A) 13

Move all terms containing x to the left, all other terms to the right.

Add '-87' to each side of the equation

$87 + -87 + x = 100 + -87$

Combine like terms: 87 + -87 = 0

$0 + x = 100 + -87$

$x = 100 + -87$

Get your answer

$x=13$

Hope This Helps!

You might be interested in

Juan has gained weight since last year. He now weighs 8 pounds more than he had originally. Rashod lost 20 pounds from his origi

Sergio039 [100]

Rashod because 20 > 8

7 0

3 years ago

What is length of BC ?

MAXImum [283]

Answer:

BC = 10

Step-by-step explanation:

Since this is an isosceles triangle

AC = BC

3x-5 = 2x

Subtract 3x from each side

3x-5-3x = 2x-3x

-5 = -x

Multiply each side by -1

5 =x

BC = 2x

=2 *5

BC =10

5 0

3 years ago

How do I find the missing sides?

iVinArrow [24]

Answer:

You would realize that this is a right triangle with angles of 45-45-90. This means that the sides are 1-3 root 2-2. Hope this helps!!

Step-by-step explanation:

7 0

3 years ago

Which of the following rational functions is graphed below?

Volgvan

Answer:

OB. FUX) =(x+6)*x+6) that is the answer

6 0

3 years ago

For the system below identify the parameters as growth rates, carrying capacities, and measure of interactions between species.

babunello [35]

Answer:

2 and 3 are the the growth rates parameter for x and y respectively
16 and 20 are the carrying capacities for x and y respectively
2 and 7 measures the benefit to x and y of the interaction of the two species.

The species compete each other.

Step-by-step explanation:

When we have a population model for two species as we have here, the differential equations looks like this:

$\frac{dx}{dt}=a*x+b\frac{x^{2}}{N}+c*xy$

$\frac{dy}{dt}=d*x+e\frac{y^{2}}{M}+f*xy)$

Here:

a and d are the the growth rates parameter for x and y respectively

N and M are the carrying capacities for x and y respectively

c and f measures the benefit to x and y of the interaction of the two species.

So in our case we have:

$\frac{dx}{dt}=2*x+\frac{x^{2}}{16}+2*xy$

$\frac{dy}{dt}=3*x-\frac{x^{2}}{20}-7*xy$

Therefore:

2 and 3 are the the growth rates parameter for x and y respectively
16 and 20 are the carrying capacities for x and y respectively
2 and 7 measures the benefit to x and y of the interaction of the two species.

The term xy determine the if the species are cooperating of competing, so in this case have negative xy term in the second equation, it means the presence of either species decreases the rate of change of the other, so the species compete each other.

I hope it helps you!

3 0

3 years ago