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NNADVOKAT [17]
3 years ago
10

Halp plz i dont know the answwer

Mathematics
2 answers:
lisabon 2012 [21]3 years ago
4 0

Answer:

-2.1 is the answer im pretty sure

Step-by-step explanation:

Liula [17]3 years ago
3 0

Answer: I believe it is 1/3 or -1.3. or 1.  Sorry if its not right.

Step-by-step explanation:

If it's correct you would make 2/5 into 4/10, 4/5 into 8/10. Then subtract 4/10-8/10=0/4 or -0.4. Then subtract (if its 1 then you would add 0.4+1=5 then turn 5 into 10/10 then subtract 10/10-9/10=1.) 0.4-9/10=1/3.

Hope 1 of these answers is right sorry if they aren't!!

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Cuanto es la tercera parte de 15,000​
Veronika [31]

Answer:

5,000.

¡Espero que ayude!

Step-by-step explanation:

4 0
2 years ago
10. Write the ratio as a fraction in simplest form.<br> 12 : 42
Pavel [41]

Answer:

2/7

Step-by-step explanation:

12 : 42 is the same as 12/42

simplify the fraction by dividing the numerator and denominator by 6

you get 2/7

8 0
2 years ago
Read 2 more answers
Solve the simultaneous equations<br> 3<br> 2x - y = 7<br> xy = 15
ehidna [41]

Answer:

(5, 3 ) and (- \frac{3}{2}, - 10 )

Step-by-step explanation:

Given the 2 equations

2x - y = 7 → (1)

xy = 15 → (2)

Rearrange (1) expressing y in terms of x , that is

y = 2x - 7 → (3)

Substitute y = 2x - 7 into (2)

x(2x - 7) = 15

2x² - 7x = 15 ( subtract 15 from both sides )

2x² - 7x - 15 = 0 ← in standard form

(x - 5)(2x + 3) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

2x + 3 = 0 ⇒ 2x = - 3 ⇒ x = - \frac{3}{2}

Substitute these values into (3) for corresponding values of y

x = 5 : y = 2(5) - 7 = 10 - 7 = 3 ⇒ (5, 3 )

x = - \frac{3}{2} : y = 2(- \frac{3}{2} ) - 7 = - 3 - 7 = - 10 ⇒ (- \frac{3}{2}, - 10 )

8 0
2 years ago
Can somebody answer this ? : n-4-9
FinnZ [79.3K]

☁️ Answer ☁️

annyeonghaseyo!

Your answer is:

n - 13

Subtract 9 from -4

Hope it helps.

Have a nice day noona/hyung!~  ̄▽ ̄❤️

4 0
3 years ago
If $3,000,000 is invested at 6% interest compounded continuously, how much
g100num [7]

Answer:

  $24,498,509.74

Step-by-step explanation:

The formula for the value as a function of time is ...

  V(t) = P·e^(rt)

Filling in the numbers and doing the arithmetic, we have ...

  V(35) = 3,000,000·e^(0.06·35) ≈ 24,498,509.74

Compounded continuously for 35 years, the investment will be worth $24,498,509.74.

3 0
3 years ago
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