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3 years ago

B) Wendy and Xavier share money in the

Mathematics

1 answer:

Law Incorporation [45]3 years ago

7 0

Answer:

22.5

Step-by-step explanation:

30/4=7.5

7.5*3=22.5

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Fifteen times a number equals three hundred. What is the number?

antoniya [11.8K]

300 divided by 15 is 20 so 20 times 15 is 300

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4 years ago

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-3.1 * (- 2.9) Please help! Math.

timama [110]

8.99 would be your answer

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4 years ago

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The difference between the annual and semi-annual compound interest on a sum of money is Rs 482 at the rate of 20 % per annum fo

kompoz [17]

Answer:

→ successive Rate of 20% for 2 Years = 2*20 + (20*20/100) = 40 + 4 = 44%.

And, when interest is compounded semi - Annually,

→ Rate = (20/2) = 10% .

→ Time = 2 * 2 = 4 Years.

So,

→ successive Rate of 10% for 4 Years = (2*10 + (10*10/100) = 21% Now, => 21*2 + (21*21/100) = 42 + 4.41 = 46.41% .

A/q,

→ (46.41%) - 44% = 482

→ 1% = (482/2.41)

→ 100% = (482/2.41) * 100 = Rs.20000 (Ans.)

Step-by-step explanation:

Answer from Gauth math

6 0

3 years ago

A collector originally purchased an autographed football for $450. After holding onto the football for a

Yuri [45]

Answer:

810

Step-by-step explanation:

450 × 1.80 = 810

The 1 represents how there is no markdown and the .80 is the 80% being marked up.

I think there is a more specific equation for this than the one I showed, but this was my way of solving these questions without giving myself a headache

6 0

3 years ago

If the length of the shorter leg of a right triangle is 5 cm and the length of the hypotenuse is 8 cm, find the length of the lo

Brilliant_brown [7]

Answer:

The length of the longer leg is 6.24 cm.

Step-by-step explanation:

Here, the length of the hypotenuse = 8 cm

The length of shorten leg ( Base) = 5 cm

Let us assume the length of longer leg (Perpendicular) = k cm

Now, as the given triangle is a right angled triangle.

So, by the PYTHAGORAS THEOREM:

$( Base)^2 + ( Perpendicular)^2 = ( Hypotenuse)^2\\\implies (5)^2 + (k)^2 = (8)^2\\\implies k^2 = 64 - 25 = 39\\\implies k^2 = 39\\k = \sqrt{(39)} = \pm (6.24)$

Now,as k is the length of the side, so it cannot be negative.

⇒ k = 6.24 cm

Hence, the length of the longer leg is 6.24 cm.

6 0

3 years ago