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Blizzard [7]
3 years ago
12

Two parallel lines are crossed by a transversal.

Mathematics
2 answers:
jarptica [38.1K]3 years ago
5 0

Answer:

b

Step-by-step explanation:

lisov135 [29]3 years ago
4 0

Answer:

Step-by-step explanation:

b//c;  a is transversal

5x + 5 + 115 = 180    { 5x+5 and 115 are supplementary angles}

5x + 120 = 180

5x = 180 -120

5x = 60

x = 60/5

x =12

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If a = 12 and 120% of a is equal to 80\% of bthen what is a + b ?
Novosadov [1.4K]

Answer:

The answer is 30

Step-by-step explanation:

First you have to find 120% of a (12).

\frac{12}{1}  \times  \frac{120}{100}  = 14.4

Therefore; 14.4 is 80% of b, and we are trying to find 100% of b

14.4 = 80\% \\ x = 100\%

we do not know what is 100% therefore we call it *x*. In order to find this unknown value *x* we cross multiply.

14.4 \times 100\% = 80\% \times x

This is the same as saying;

14.4  \times 1 = x \times  \frac{4}{5}

100% percent would be 1 because it is the whole number we are trying to find. The 80% would be 4/5. To get 4/5 you can simply break down 80/100 ( this is 80% as a fraction).

so the new equation is: 14.4= 4/5x

We divide both sides by 4/5. Then we will get x tobe equal to 18. Therefore b is 18. We were asked to find (a + b) so.<em> </em><em>1</em><em>8</em><em>+</em><em>1</em><em>2</em><em> </em><em>=</em><em> </em><em>30</em>

4 0
2 years ago
X + 34 = 40 what does "x" equal? explain
butalik [34]
Hey there!

6 + 34 = 40

so x = 6

Hope this helps
Have a great day (:
8 0
4 years ago
Read 2 more answers
Help&amp;EXPLAIN <br> ==============
Marat540 [252]

Answer:

area=πr²=3.14×4²=50.24ft²

5 0
3 years ago
BRAINLIEST PLEASE HELP ME <br> What is the y-intercept<br> 150<br> 200<br> 250<br> 180
xeze [42]

Answer:

250

Step-by-step explanation:

when x = 1, y = 250. That's the y-intercept

8 0
3 years ago
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Egan needs to drain his 21,000​-gallon inground swimming pool to have it resurfaced. He uses two pumps to drain the pool. One dr
Vinvika [58]

Answer:

600 minutes

Step-by-step explanation:

The total rate of the Pump is gotten first

15 + 20 = total rates of 35 gallon per hour .

rate = volume/ time.

Volume = rate * time

21,000 = 35 * t

t = 21,000/35

t = 600 minutes.

To check the volume each pump will pump out.

pump A 15 * 100 = 9000 gallons

Pump B 20 * 600 = 12000 gallons.

12,000+9,000= 21,000 which gives the total gallons of the swimming pool back

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