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serg [7]
3 years ago
15

What is the value of x in the equation -2/9x2/5 ?

Mathematics
2 answers:
vodka [1.7K]3 years ago
5 0

Answer:

-1 4/5

Step-by-step explanation:

-2/9x = 2/5

(multiply both equations by 9 and 5)

So

-10x = 18

(divide both equations by -10)

x = - 18/10

Simplify:

x= - 9/5

= - 1 4/5

LuckyWell [14K]3 years ago
4 0
C
Explanation because i think it’s right
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Each side of the Pentagon Building in Washington DC is 900 feet long. What is the perimeter ?
Vika [28.1K]
The perimeter of a Pentagon is all the length of the sides added up
A pentagon is a five sided shape
so...
900+900+900+900+900
or 900*5
That is 4500.

The perimeter of the Pentagon Building in Washington DC, whose side is 900 feet long, is 4500 feet around.

Hope this helps :)
6 0
3 years ago
Subtract (x^2+5-6)-(-2x^2-3x-7) explain each step
Anvisha [2.4K]
Your answer is 3x^(2)+3x+6

Hope this helped!

6 0
3 years ago
A card is picked at random from the following set. ​ ​What is P(9) ? Write your answer as a percentage in the box given below.
irina1246 [14]

Answer:

25%

Step-by-step explanation:

The (not mentioned in the question) set is: 6 7 8 9.

There are 4 total outcomes and only 1 favorable outcome, then the probability to pick a 9 is:

P(9) = favorable outcome/total outcomes

P(9) = 1/4 = 0.25 or 0.25*100 = 25%

4 0
3 years ago
Find the payment necessary to amortize a 6.3% loan of 7500 compounded semiannually, with 6 semiannual payments. Find the payment
Lorico [155]

Answer:

Semiannual payment = $ 1391.37

Total payment = $ 8348.22

Interest paid =  $ 848.22

Step-by-step explanation:

Since, the semiannual payment formula of a loan,

P=\frac{PV(\frac{r}{2})}{1-(1+\frac{r}{2})^{-n}}

Where,

PV = present value of the loan,

n = number of semiannual payments,

r = annual rate,

Here, PV = 7500, r = 6.3% =0.063, n = 6,

By substituting the value,

The semiannual payment would be,

P=\frac{7500(\frac{0.063}{2})}{1-(1+\frac{0.063}{2})^{-6}}

\approx \$ 1391.37

Also, total payment = semiannual payment × total semiannual periods

= 1391.37 × 6

= $ 8348.22,

Also, the interest paid = total payment - present value

= 8348.22 - 7500

= $ 848.22

6 0
3 years ago
What is the volume of this triangular prism?<br><br> 182 m3<br> 195 m3<br> 210 m3<br> 390 m3
otez555 [7]
I think that the answer is 390
6 0
3 years ago
Read 2 more answers
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