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Elza [17]
3 years ago
15

The formula n(n+1)/2

Mathematics
1 answer:
mafiozo [28]3 years ago
5 0
The answer is in the attached image

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5p coins weigh approximately 3 grams.
Elza [17]

Answer: 0.3 kg

Step-by-step explanation:

£5 = 500p

500p ÷ 5 = 100

100 x 3 = 300 grams

300 ÷ 1000 = 0.3 kg

Hope this helps :)

3 0
3 years ago
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5•m=35 what’s the value of m
nikitadnepr [17]

Answer:

5

Step-by-step explanation:

5x5=35

3 0
3 years ago
How do i write 23r4 in verbal expression
cupoosta [38]

Answer:

if it's 2/3r^4 heres the answer

Step-by-step explanation:

1.) 2/3 times r raised to the 4th power

2.) the product of 2/3 and r raised to the 4th power

3.) 2/3 multiplied by r raised to the 4th power

4.) 2/3 of r raised to the 4th power

you can pick one of the many choices I've listed!! youre welcome :)

7 0
3 years ago
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Sketch a line with a slope of -2 and another with a slope of -4
WINSTONCH [101]

Answer:


Step-by-step explanation:

Try and become familiar with a program like Desmos. It will do wonderful things for you.

I have graphed

Red: y = -2x + 5  (The 5 is the y intercept. For this question it could be anything.

Blue: y = - 4x + 5 Same note as above.


4 0
3 years ago
Solve 5x – 1 = 3x – 15. Explain each step, and include the Properties of Equality that you used.
artcher [175]

5x – 1 = 3x – 15

Subtraction Property of Equality  (Subtract 3x from both sides)

2x - 1 = -15

Addition Property of Equality   (Add 1 to both sides)

2x = - 14

Division Property of Equality   (Divide both sides by 2)

x = -7

7 0
3 years ago
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