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Blizzard [7]
3 years ago
6

Could someone answer this

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
8 0

Answer:

y=-8

x=-7

Step-by-step explanation:

x-2y=9         x=2y+9

3x-5y=19

3(2y+9)-5y=19

6y+27-5y=19

y+27=19

y=-8

x=2(-8)+9=-16+9=-7


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If ED = 2x + 4 and DF = 4x - 6. Find DG. Show your work. someone help me out please.
pentagon [3]

Answer:

5=x

Step-by-step explanation:

2x+4=4x-6

-2x     -2x

4=2x-6

+6     +6

10=2x

÷2   ÷2

5=x

6 0
3 years ago
In 1982 John Hinckley was on trial, accused of having attempted to kill the then US President Ronald Reagan. Hinckley was found
Nadya [2.5K]

Answer:

O.186 or 18.6%

Step-by-step explanation:

Let s = event of schizophrenia

B = brain atrophy

From our question we have:

P(s) = probability of those suffering from schizophrenia = 1.5% = 0.015

P(B|S) = probability of brain atrophy = 30% = 0.30

P(S') = 1 - 0.015 = 0.985

P(B|S') = 2% = 0.02

Probability Hinckley suffered from schizophrenia

= P(S|B) = P(B|S)P(S)/P(B|S)P(S)+P(B|S')P(S')

= (0.30x0.015)/(0.30)*(0.015)+(0.02)(0.985)

= 0.0045/0.0045+0.0197

= 0.0045/0.0242

= 0.185950

This is approximately 0.186 or 18.6%

4 0
3 years ago
4/7x = 64 <br> Answer for x
Artyom0805 [142]

x = 112  

                      

This is because

<span>4/7x = 64 </span>

<span>7/4 x 4/7 = 64/1 x 7/4                         </span>

<span>1x= 448/4                                           </span>

<span>x = 112                          </span>
7 0
3 years ago
Read 2 more answers
684303 rounded to nearest thousand
horsena [70]
684,000. This should give you the correct answer as the 4 is the thousands place. Good luck :D
3 0
3 years ago
Joe is buying a jacket that originally costs $59.27 but is on sale for 10% off. Sales tax is 7%. What is the total cost of the j
postnew [5]
Hello!

10% off means there's a discount on the jacket, so we will be finding how much the discount is worth and then we'll subtract that from the original cost of the jacket. 
Sales tax is basically additional money added to the cost of an item, so we will find what the sales tax is on this and then add that to the cost.

59.27 * 10% = 5.927

59.27 - 5.927 = 53.343

Now, find and add the sales tax. 

53.343 * 7% = 3.73401

53.343 + 3.73401 = 57.07701

Round this to 57.1

The total cost of the jacket is $57.1.
7 0
3 years ago
Read 2 more answers
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