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irina [24]
3 years ago
15

Three support beams for a bridge form a pair of complementary angles. Find the measure of each angle. (3x-20) and (7x+10)

Mathematics
1 answer:
stealth61 [152]3 years ago
4 0

Answer:

3x-20=-6.6 degrees, 7x+10=1.4 degrees

Step-by-step explanation:

You solve each equate separately. So take the equation (3x-20) and solve for x first in that one. so you divide 3 by -20 to get -6.66 degrees for your first angle. Then you solve the other equation. (7x+10) divide 7 by 10 to get the angle measurement. Which would be 1.4 degrees.  

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Three married couples go to a movie theater. if they sit together in a row of 6 empty seats, find the probability that each woma
Ganezh [65]

Given are three married couples.

So, let us assume there are 3 men and 3 women

They are sitting in a row of 6 empty seats

There is a definite order constraint that each woman will sit left to her husband. The first woman gets 3 options to choose from 3 available seats. The second woman has two options left as already one seat is filled by the first woman. The last woman has one option left. So, it is 3*2*1

So, number of ways is 3! = 3*2*1 = 6 ways.

5 0
3 years ago
PLEASE ANSWER CLEARLY WITH THE EQUATION
STatiana [176]

After solving the provided question, Aisha spent 7.9 hours and 9.9 hours, respectively, working last week as a babysitter and a landscaper.

<h3>Which is an equation?</h3>

A mathematical statement that has at least two terms, both of which contain variables or equal integers, is defined as an equation.

Aisha is reportedly working two summer jobs, earning $7 an hour for babysitting and $8 an hour for gardening.

Let's say you were to watch the children for x hours.

And y would be the amount of hours spent on landscaping.

Last week, Aisha spent two more hours babysitting than a landscaper, earning a total of $134.

y = x + 2\\7x + 8y = 134\\Substitute the value of y = x + 2 in the equation,\\7x + 8(x + 2) = 134\\7x + 8x + 16 = 134\\15x = 134 - 16\\15x = 118\\x = 118/15\\x = 7.9\\Substitute the value of x = 7.9 in the equation y = x + 2 ,\\y = 7.9 + 2\\y = 9.9\\

To more about the equation here:

brainly.com/question/649785

#SPJ1

5 0
1 year ago
Can you find the product of (7m+7)(7m+2)?​
Veronika [31]

Answer:

Step-by-step explanation:(7m+7)(7m+2) multiply, 7m×7m+7m×2+7×7m+7×2. 49m2+14m+49m+14. = 49m2+63m+14

7 0
3 years ago
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HELP!!!!!!!! PLEASE!!!!!!!
Karo-lina-s [1.5K]
It is four people +6

5 0
3 years ago
The space shuttle travels at about 28,000 km per hour. Using that information, estimate how many hours it will take the shuttle
Gekata [30.6K]

Answer:

t = 42857.14 h

Step-by-step explanation:

Given that,

The speed of space shuttle, v = 28000 km/h

We know that, the distance between the Saturn and the Earth is 1,200,000,000 km.

Let t be the time.

As we know, speed = distance/time

So,

t=\dfrac{d}{v}\\\\t=\dfrac{1,200,000,000}{28000}\\\\t=42857.14\ h

So, the required time is equal to 42857.14 hours.

6 0
3 years ago
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