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IgorC [24]
3 years ago
14

How do you find the value for x in the problem?

Mathematics
1 answer:
Nata [24]3 years ago
6 0
Make use of the fact that side lengths in similar triangles are proportional.
.. 30/18 = (20 +x)/20
.. 20*(30/18) -20 = x . . . . multiply by 20, subtract 20
.. 33 1/3 -20 = x . . . . . . . . evaluate the product
.. 13 1/3 = x
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Two angles are complementary. The measure of one angle is 6º more than five times the measure of the other angle. Find the
Salsk061 [2.6K]

Complementary means that the two angles sum to 90 degrees.

So based on the problem, let:

1st angle=5x+6

2nd angle=x

Now create an equation.

x+5x+6=90

6x=84

x=14

5x+6=76

answer: 14 degrees and 76 degrees

6 0
3 years ago
Read 2 more answers
If the endpoints of the diameter of a circle are (−6, 6) and (6, −2), what is the standard form equation of the circle?
Varvara68 [4.7K]
1. Find the centre of the circle or the midpoint of the two numbers
(6-6/2}, (-2+6/2)
(0, 2)
2. Find radius using the distance formula
√<span>(6 - 2)² + (-6 - 0)²
</span>√4² + (-6)²
√16 + 36
√52
r = 7.21
3. Plug in
x² + (y - 2)² = 52

So it is option D 99% sure
6 0
3 years ago
Read 2 more answers
An aquarium tank holds 190 liters of water. How much is this in gallons? Use the following conversion: 1 gallon is 3.8 liters.
Bogdan [553]
All you have to do is divide 190 liters by 3.8 liters. To get the calculated amount of gallons.
7 0
3 years ago
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Solve the inequality, &amp; show step by step<br><br> |x+1|&gt;5
pantera1 [17]

Step-by-step explanation:

Here you go i think its good

5 0
3 years ago
An engineering student answered 81 questons correctly ona 90 question test. What percent of the question did she answer correctl
SIZIF [17.4K]

Answer:

correct answer = 90%

Step-by-step explanation:

Let x be the percent of the question did she answer correctly.

Given:

An engineering student answered 81 questions correctly on a 90 question test.

Find the percent of the question did she answer correctly.

Solution:

Percentage formula is given below

% answer =\frac{correct\ answer}{total\ questions}\times 100

% answer =\frac{81}{90}\times 100

% answer =\frac{81\times 100}{90}

% answer =\frac{81\times 10}{9}

% answer =9\times 10

% answer =90

correct answer = 90%

Therefore, she answered 90% correctly.

4 0
3 years ago
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