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3 years ago

What is the final amount if 457 is decreased by 1% followed by a further 3% decrease? Give your answer rounded to 2 DP.

Mathematics

1 answer:

kaheart [24]3 years ago

4 0

Answer:

438.86

Step-by-step explanation:

1. 457 x 0.99 = 452.43 - Decreased by 1%

2. We need to decrease 452.43 again but this time by 3% - 452.43 x 0.97

3. This gives us an answer of 438.8571

4. Finally we need to round this to 2DP, the 7 (438.8571) rounds up so the number to the left increases. This leaves an answer of 438.86

Hope this helps :D

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3 years ago

There where x cookies to the beginning of party.By the end of party 16 of then had been eaten.Using x write an expression for th

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Answer:

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Step-by-step explanation:

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3 years ago

Solve the following system of equations by linear combination: 3d – e = 7 d + e = 5

SashulF [63]

3d - e = 7d + e = 5 ⇒ 3d - e = 5
7d + e = 5

3d - e = 5
7d + e = 5 +
-----------------------
10d / = 10
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4 years ago

Guys I need help with these help me please !!

nekit [7.7K]

Answer:

Sequence 1

Step-by-step explanation:

You need to find the difference between term - the nth term.

The difference / nth term has to to -1/2 (-0.5)

Sequence 1:

-6 * -0.5 = 3 * -0.5 = -3/2 (-1.5) * -0.5 = 3/4 (0.75) * -0.5 = -3/8 (-0.375)

Sequence 2:

4 * -2 = -8 *-2 = 16 * -2 = - 32 * -2 = 64

Sequence 3:

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The only sequence with a common ratio of -1/2 is Sequence 1.

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3 years ago

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IRINA_888 [86]

Step-by-step explanation:

a) 4.67 × 10^6

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3 years ago