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Rom4ik [11]
3 years ago
12

In a 30-60-90 triangle, how many sides do you need to know in order to determine the remaining sides?

Mathematics
2 answers:
lesantik [10]3 years ago
6 0
All you really need to know is one side preferably the shorter leg<span />
podryga [215]3 years ago
3 0
You need to know one side.
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Can someone give the answer
KonstantinChe [14]

Answer:

(2, -2)

Step-by-step explanation:

Given the equation

x - y = 4 ... 1

6x+y = 10 ...2

Add both expressions

x+6x = 4 + 10

7x = 14

x = 14/7

x = 2

Substitute x = 2 into equation 1;

From 1;

x - y = 4

2 - y = 4

y = 2-4

y = -2

Hence the solution to the system of equation is (2, -2)

4 0
3 years ago
A bed is 2400 a discount of 25% was given on the
Brrunno [24]

Answer:

800

Step-by-step explanation:

Given: The selling price of bed is 2400.

          Discount offered is 25%

Lets assume the cost of bed be "x"

Discount offered on the cost price of bed= \frac{25}{100} \times x= 0.25x

∴ Discount offered on the cost price of bed= 0.25x

We know the selling price of bed after discount provided.

Finding the cost price of the bed.

⇒ x-0.25x= 2400

⇒ 0.75x= 2400

cross multiplying both side.

∴ x= \frac{2400}{0.75} = 3200

∴ Cost price of the bed is 3200.

We know selling price of the bed is 2400.

Now, finding the saving.

Saving on the price of bed= Cost price- selling price

Saving= 3200-2400= 800

Hence, saving on the purchase of the bed is 800.

7 0
3 years ago
jo has a total of 61 dimes and quarters in her piggy bank. she has 3 more quarters than dimes. the coins have a total value of $
Zepler [3.9K]
D+Q=61 => D=61-Q
3+D=Q

10D+25Q=1090

10(61-Q) + 25Q=1090
610-10Q+25Q=1090

610+15Q=1090
-610 -610

15Q=480

480/15=32

32 quarters
4 0
3 years ago
Read 2 more answers
Solve for x: x-3/4=x/10
Olin [163]

Answer:  

fractions form- x= 5/6

decimal form- x=0.83

Step-by-step explanation:

5 0
3 years ago
Write the percent as a fraction or mixed number in simplest form. <br> 62%
suter [353]
= 62%

= 0.62

= 62/100

= 31/50

6 0
4 years ago
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