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2 years ago

9

Marvin collects trading cards.He stores them in boxes that hold 235 cards each.If Marvin has 4 boxes full of cards, how many car

ds does he have in his collection?
A)940
B)920
C)800
D)705

2 answers:

Taya2010 [7]2 years ago

5 0

235 * 4 = 940 your answer is A

makkiz [27]2 years ago

4 0

Well 4X235 gives you the answer is a 940

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erik [133]

We are given that Peter buys 12 bunches of bananas for 9.00.

We need to determine how much peter will pay for 8 bunches.

Let us set up proportion now.

12 bunches of bananas for 9.00 = 12 : 9

Let us assume Peter will pay for 8 bunches = $x.

Therefore, 8 bunches of bananas for x = 8 : x.

<h3>Setting up proportion:</h3><h3> $\frac{12}{9} = \frac{8}{x}$ </h3>

On cross-multiplying, we get

12x = 9×8

12x = 72.

Dividing both sides by 12, we get

$\frac{12x}{12} =\frac{72}{12}$

x=6.

<h3>Therefore, Peter will pay $6 for 8 bunches.</h3>

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An airplane climbs 100 feet during the first second after takeoff. In each succeeding second it climbs 100 feet more than it cli

tigry1 [53]

Answer:

15 seconds.

Step-by-step explanation:

∵ The distance covered by plane in first second = 100 ft,

Also, in each succeeding second it climbs 100 feet more than it climbed during the previous second,

So, distance covered in second second = 200,

In third second = 300,

In fourth second = 400,

............, so on....

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$=\frac{n}{2}(100+100n)$

$=50n+50n^2$

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$\implies 50n+50n^2=12000$

$n+n^2=240$

$n^2+n-240=0$

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$n(n+16)-15(n+16)=0$

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$\implies n=15\text{ or }n=-16$

∵ n can not be negative,

Hence, after 15 seconds the plane will reach an altitude of 12,000 feet above its takeoff height.

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tankabanditka [31]

Answer:

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Step-by-step explanation:

The first equation is 1/2x^2 + 1 and since this equation is the first one minus 4 1-4= -3 so you would get this new equation.

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