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2 years ago

7

Maria walks 16 meters every 10 seconds. How far does she walk in 45 seconds?

2 answers:

KonstantinChe [14]2 years ago

6 0

Answer:

exactly 72

bcs 16*4,5 it is

-BARSIC- [3]2 years ago

5 0

Answer:

The answer is 72 meters

Step-by-step explanation:

So we know that she can walk 16 meters in 10 secs. Therefore she can walk 64 meters in 40 secs and for the 5 secs remaining you just put half of 16 which is 8. We add the 64 and 8 together and we get 72

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oksano4ka [1.4K]

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3 years ago

Q(a+1) - 2q(a) if q(x) = x²+3x+4

siniylev [52]

$q(x) = {x}^{2} + 3x + 4$

_________________________________

Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

$q(a) = {a}^{2} + 3a + 4$

Multiply sides by -2 :

$- 2q(a) = - 2( {a}^{2} + 3a + 4)$

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Step (2)

To find q(a+1) we just need to put a+1 instead of x in q(x) function.

Let's do it...

$q(a + 1) = ({a + 1})^{2} + 3(a + 1) + 4 \\$

$q(a + 1) = {a}^{2} + 2a + 1 + 3a + 3 + 4 \\$

$q(a + 1) = {a}^{2} + 5a + 8$

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Step (3)

$q(a + 1) - 2q(a) =$

${a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 = \\$

$- {a}^{2} - a = - a(a + 1)$

And we're done.

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3 years ago

Wilma buys a new game that is priced $43.89. She gets successive discounts of 15% followed by 5% off on the game. The purchase p

jek_recluse [69]

The answer is C. 80.75%

Hope this helps!

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3 years ago

Read 2 more answers

Snowcat [4.5K]

Answer:

it would take him 63.55.minutes or 1 hour 3 minutes so it would take him a about to a bit more than an hour

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2 years ago

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FromTheMoon [43]

Answer:

x = $\frac{-5}{2}$ <u><em>or </em></u>x = $\frac{-1}{3}$

Step-by-step explanation:

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2 years ago

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