All categories

2 years ago

Giving brainliest!! thanks in advance!

Mathematics

1 answer:

vivado [14]2 years ago

6 0

Answer:

<h2>55,000 </h2><h3>Step-by-step explanation:</h3><h3>thats my answer thank you for the nice question </h3>

You might be interested in

How does an increase in thermal energy affect molecules?

zheka24 [161]

Answer:

The molecules become more active and it expands.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

X^2 - y^2 = 100

luda_lava [24]

Answer:

Step-by-step explanation:

Let's start by rewriting the second equation in terms of "x":

$x+y=5$

Subtract y from both sides:

$x=5-y$

Now, substitute "5-y" for "x" in the first equation:

$(5-y)^2-y^2=100$

Note that:

$(a-b)^2=a^2-2ab+b^2$

$25-10y+y^2-y^2=100$

Cancel out like terms:

$25-10y=100$

Subtract 25 from both sides:

$-10y=75$

Divide both sides by -10

$y=\frac{75}{-10}=\frac{15}{-2}=-\frac{15}{2}$

Now, substitute this value back into either of the equations to solve for x.

$x+y=5\\x-\frac{15}{2}=5\\$

Add 15/2 to both sides:

$x=5+\frac{15}{2}\\x=\frac{10}{2}+\frac{15}{2}\\x=\frac{25}{2}$

Now, find the difference:

$x-y=\frac{25}{2}-(-\frac{15}{2})=\frac{25}{2}+\frac{15}{2}=\frac{40}{2}=20$

8 0

3 years ago

With a headwind a plane traveled 128 km in 2h. The return trip with a tail wind took 24 min less. Find the air speed of the plan

sertanlavr [38]

Based on the information given, it can be noted that the air speed that the plane has will be 71.1 km per hour.

The number of hours used for the return trip will be:

= 2 hours - 24 minutes.

= 1 hour 36 minutes.

= 1.6 hours.

Therefore, the speed of the air plane will be:

= (128 + 128) / (2 + 1.6)

= 256/3.6.

= 71.1 km per hour.

Learn more about speed on:

brainly.com/question/25860159

6 0

3 years ago

The measure of an exterior angle of a triangle is equal to which of the following measures?

Korolek [52]

Measures of sum of the two opposite angles.

5 0

3 years ago

I really need help !!

lisov135 [29]

(57/19)*65=195
is the answer.

7 0

3 years ago

Read 2 more answers