3 years ago

Convert weeks to days>

Mathematics

1 answer:

madam [21]3 years ago

4 0

What is the question that you're asking?

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What is -a^-2 if a = -5? (PLEASE HELP WILL MARK BRAINLIEST!!!)

4vir4ik [10]

Answer:

-1/25

Step-by-step explanation:

-a^-2

-(-5)^-2

=-1/25

6 0

2 years ago

A shop sells pairs of trainers for £52 each. They make a percentage profit of 30% on each pair. What was the cost of each pair o

DochEvi [55]

Answer:

£67.60

Step-by-step explanation:

30% of 52 is 15.6

52 + 15.6 = 67.6

I hope this helps, please mark Brainliest, thank you!

5 0

2 years ago

The 3rd and 6th term of a geometric progression are 9/2 and 243/16 respectively find the first term, common ratio, seventh term

sashaice [31]

Answer:

Hello,

Step-by-step explanation:

$Let\ (u_n)\ the\ geometric\ progression.\\\\r\ is\ the\ common\ ratio.\\\\u_3=u_0*r^3\\u_6=u_0*r^6\\\\\dfrac{u_6}{u_3} =r^3=\dfrac{\frac{243}{16} }{\frac{9}{2} } =\dfrac{27}{8} =(\frac{3}{2} )^3\\\\\boxed{r=\dfrac{3}{2} }\\\\\\u_3=u_1*r^2 \Longrightarrow\ u_1=\dfrac{u_3}{r^2} =\dfrac{\frac{9}{2} }{(\frac{3}{2^2}) } =2\\\\\\u_7=u_6*\dfrac{3}{2} =\dfrac{729}{32}$

5 0

2 years ago

Plz help! Will give brainlest

AnnZ [28]

Answer:

99 Sorry if im wrong

Step-by-step explanation:

8 0

2 years ago

- 3/4 (x - 3) - 5 = 1/8 (x -1)

Naya [18.7K]

Answer:

x= -1/2

Step-by-step explanation:

-3/4x+9/4-5=1/8x-1/8

-3/4x-11/4=1/8x-1/8

x=9/4-11/4

x=-1/2

5 0

2 years ago