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3 years ago

Can someone please help me on this question?

Mathematics

2 answers:

katovenus [111]3 years ago

3 0

Answer:Hope this helps

6n=-3n-18

9n=-18

n=-2

ankoles [38]3 years ago

3 0

Answer:

6n+9=-3n-21-6

6n+9=-3n-27

6n=-3n-36

9n=-36

n=-4

Hope this helps plz hit the crown and fill in the blanks like I did :D

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Please help me gotta pass

Rudik [331]

Answer:

Y=59 Z=93

Explanation:

To find Z, you have to know the line is equal to 180 degrees. You then subtract 180-87=93 that’s how you get Z. Then with that you know that 34+Y is going to equal 93 because they are across from each other. I forgot what that property is called, but yeah. Then you subtract 93-34=59 there you go hope that helps :)

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3 years ago

Factorise by grouping: x² - 5x + 2x - 10

IrinaK [193]

Answer:

(x + 2)(x - 5)

Step-by-step explanation:

Here are the steps:

$x^2-5x+2x-10\\(x^2-5x)+(2x-10)\\x(x-5) + 2(x-5)\\(x + 2)(x-5)$

4 0

3 years ago

Hemos decidido ahorrar ingresando en un banco 1000 € al principio de cada año. Calcula, aplicando la fórmula, la cantidad que te

Leto [7]

Answer:

There will be 9897.47€ in the account.

La cantidad será de 9897.47€.

Step-by-step explanation:

Future value with annuity:

The future value formula, for an annuity, is:

$FV = \frac{P((1+r)^{n} - 1)}{r}$

An annuity means that a number of payments happen during the period(an year, for example.

P is the value of the deposit, r is the interest rate, as a decimal, and n is the number of deposits.

In this question:

1000 € each year, so $P = 1000$

Interest rate of 6%, so $r = 0.06$

One application per year for 8 years, so $n = 8$

Total amount:

$FV = \frac{1000((1+0.06)^{8} - 1)}{0.06} = 9897.47$

There will be 9897.47€ in the account.

La cantidad será de 9897.47€.

5 0

3 years ago

5-7y/2+4y equals -8/7

Ksenya-84 [330]

Answer:

$\boxed{y = 3}$

Step-by-step explanation:

$= > \frac{5 - 7y}{2 + 4y} = - \frac{8}{7} \\ \\ = > 7(5 - 7y) = - 8(2 + 4y) \\ \\ = > (7 \times 5) - (7 \times 7y) = ( - 8 \times 2) + ( - 8 \times 4y) \\ \\ = > 35 - 49y = - 16 - 32y \\ \\ = > 35 - 49y + 32y = - 16 \\ \\ = > 35 - 17y = - 16 \\ \\ = - 17y = - 16 - 35 \\ \\ = > \cancel{- }17y = \cancel{- } 51 \\ \\ = > 17y = 51 \\ \\ = > y = \frac{51}{17} \\ \\ = > y = 3$

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4 years ago

Assume you have 3,000 songs downloaded to your mobile phone. Of these songs, 50 songs are by your favorite artist. If you play t

Bond [772]

Answer:

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Step-by-step explanation:

i just subtracted 3,000 with 50

8 0

3 years ago