3 years ago

Which box of grass seed gives the better value for money?

Mathematics

1 answer:

Elena-2011 [213]3 years ago

7 0

1000 g boxes costing 19.50

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3 is 15% of what number

vazorg [7]

Use the rule of 3 simple

x mean 100%
3 mean 15%
-------------------
x = 3*100/15 = 300/15 = 20

hope this will help you

6 0

3 years ago

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The first term of a geometric series is 3, and the sum of the first term and the second term is 15. What is the sum of the first

Ivan

Sum of n terms in a geometric progression is given by Sn = a1 (1 - r^n) / (1 -r)

3( 1 - 4^6) / (1-4)

= 4,095

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3 years ago

The price of one share of Acme Company declined $5 per day for 4 days in a row. How much did the price of one share change in th

Ksju [112]

If the price went down $5 per day for four days straight, then it would have went down $20 total after the four days.

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3 years ago

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Alison does 8 math problems in 2 minutes. How long will it take her to do a set of 160 problems?

erastovalidia [21]

Answer:

40 min

Step-by-step explanation:

find unit rateeee p=problems

8 p= 2 min

8/2=4

so Alison can do 4 math problems per minute

so 160/4= 40 minutes

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3 years ago

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Can someone help me with this

V125BC [204]

Answer: Period = 4

Amplitude = 3

<u>Step-by-step explanation:</u>

Period is the interval of one "cycle" before the pattern repeats.

If you notice that when x = 0, y = -4.

When does the pattern repeat (reach -4 again)?

Answer: when x = 4.

So the interval of one "cycle" is 4 units --> Period = 4.

$Amplitude=\dfrac{Max-Min}{2}=\dfrac{2-(-4)}{2}=\dfrac{6}{2}=\bold{\large\boxed{3}}$

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3 years ago

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