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Elena L [17]
2 years ago
11

3. Mr. Tipplat can grade 4 papers in 3 minutes. How long wil it take him to grade 22 papere?

Mathematics
1 answer:
tatuchka [14]2 years ago
5 0

Answer: Find the formula and there you go

Step-by-step explanation: Each 4 papers = 3 minutes keep adding it until I get near twenty one and don't go over

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Find 1st, 2nd, 3rd, 4th and 10th nTh term. rule is 3n+4
Irina-Kira [14]

Answer:

When n is 1

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7 0
3 years ago
When Dylan checks their school lunch account, the
Gala2k [10]

Answer:

12

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7 0
3 years ago
This is due in 10 minutes please help me
valkas [14]

Given:

The rate of interest on three accounts are 7%, 8%, 9%.

She has twice as much money invested at 8% as she does in 7%.

She has three times as much at 9% as she has at 7%.

Total interest for the year is $150.

To find:

Amount invested on each rate.

Solution:

Suppose x be the amount invested at 7%. Then,

The amount invested at 8% = 2x

The amount invested at 9% = 3x

Total interest for the year is $150.

x\times \dfrac{7}{100}+2x\times \dfrac{8}{100}+3x\times \dfrac{9}{100}=150

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So, the amount invested at 7% is 300.

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The amount invested at 9% is

3(300)=900

Hence, the stockbroker invested $300 at 7%, $600 at 8%, and $900 at 9%.

7 0
2 years ago
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