Find the 10th term of 19,25,31,37..... arithmthic sequence

Mathematics

1 answer:

Arisa [49]4 years ago

8 0

I think your answer should be 73.

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I buy a MP3 player for £40 in a sale where it was 20% off. What was the original price

natta225 [31]

20% off means you paid only 80% of the original price.
0.8x=40
x=40÷0.8=50
so the original price is 50

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3 years ago

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Please help, see attachment

Black_prince [1.1K]

Answer:

The length of DB is 8

Step-by-step explanation:

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3 years ago

Pls help with number 4b

Leya [2.2K]

Answer:

where is the hint

Step-by-step explanation:

you might want to try reading the hint

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3 years ago

X² + y² = 34<br>x + y =8

Nataly [62]

Step-by-step explanation:

${x}^{2} + {y}^{2} = 34 \\ x + y = 8 \\ x = 8 - y \\ substitute \: x \: in \\ {x}^{2} + {y}^{2} = 34 \\ {(8 - 4)}^{2} + {y}^{2} = 34 \\ {(8 - 4) }^{2} = {y}^{2} - 16y + 64 \\ {y}^{2} - 16y + 64 + {y}^{2} = 34 \\ {2y}^{2} - 16y + 64 = 34 \\ {2y}^{2} - 16y + 64 - 34 = 0 \\ {2y}^{2} - 16y + 30 = 0 \\ 2 {y}^{2} - 6y - 10y + 30 = 0 \\ (2 {y}^{2} - 6y) - (10y + 30) = 0 \\ 2y(y - 3) - 10(y - 3) = 0 \\ (2y - 10)(y - 3) \\ 2y = 10 \\ y = \frac{10}{2} \\ y = 5 \\ or \\ y = 3 \\ if \: y = 5 \: \: x = 3 \\ if \: y = 3 \: \: x = 5$

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3 years ago

Question 3 (1 point)

Eva8 [605]

Fixed expense because it is a monthly payment

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3 years ago

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