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vova2212 [387]
3 years ago
9

Write down in terms of n the expression for the nth term of the following sequances :

Mathematics
1 answer:
DochEvi [55]3 years ago
3 0
1. a_n=3n-1
2. a_n=2n+7
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I need help on this equation 6s-10=s
dusya [7]
The equation:                           6s - 10  =  s

Add  10  to each side:             6s         =  s  +  10

Subtract 's' from each side:    5s         =          10

Divide each side by  5 :            s          =            2
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3 years ago
Josh is building a sandbox for his little sister. He uses these plans, which have a scale of 2 in. : 3 ft.
skelet666 [1.2K]

Answer:

Width of 6ft and length of 9ft

Step-by-step explanation:

The sandbox has a ratio of 2:3. If you plug the numbers in with the ratio, you can find the actual dimensions.

Let x be the length

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(Length)

2in / 3ft = 6in / (x)ft

2in / 3ft = 6in / <u><em>9ft </em></u>

(Width)

2in / 3ft = 4in / (y)ft

2in / 3ft = 4in / <em><u>6ft</u></em>

6 0
3 years ago
Jay and blair went fishing together they caught 21 fish. jay caught 2 times as many as blair.
deff fn [24]

Answer:

jay caught 42 fish that more than blair

Step-by-step explanation:

5 0
3 years ago
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10. Triangle A and triangle B are similar. The perimeter of triangle A is 15 m and the perimeter of
pentagon [3]

Answer:

2:1

Step-by-step explanation:

I think I'm not 100 percent sure

6 0
3 years ago
Total runs scored by 2 batsmen is 215. Express this information in linear equation in two variables
Naddik [55]

Answer:

Let the runs scored by the first batsman be x

And,

Let the runs scored by the second batsman be y

The total runs scored are 215 which will be the sum of runs scored by both the batsmen.

Example:

x + y = 215

Step-by-step explanation:

6 0
3 years ago
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