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Novay_Z [31]
3 years ago
6

Please someone help me I’m confused

Mathematics
1 answer:
insens350 [35]3 years ago
4 0

Answer:

a2 =14

a4 = 22

a11 = 50

Step-by-step explanation:

an = 10 + (n-1) *4

n is the term number

Let n =2

a2 = 10 +(2-1)*4 =10 +(1)*4 = 14

Let n =4

a4= 10 + (4-1)*4 = 10 *3*4 = 10+12 = 22

Let n = 11

a11 = 10 +(11-1)*4 = 10 *10*4 = 10+40 = 50

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Evan went to the park and saw four animals.
dsp73

Answer:

He saw <u>1 duck</u> and <u>3 dogs</u>.

Step-by-step explanation:

Given:

Evan went to the park and saw four animals.

Each animal was either a duck or a dog.

He saw a total of 14 legs.

Now, to find the number of each animal he had seen.

Let the number of duck be x.

And the number of dog be y.

So, total number of animals:

x+y=4\\y=4-x

Now, the total number of legs he did see:

<em>As we know the legs of a duck are 2 and a dog are 4.</em>

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Adding both sides by -16 we get:

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Now, putting the value of x in above equation we get:

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Therefore, he saw 1 duck and 3 dogs.

4 0
3 years ago
Toya can run one lap of the track in 1 min. 3 sec., which is 90% of her younger sister niki's time. what is niki's time for one
Alex
Hello!

1 minute 3 seconds = 63 seconds

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90 * 100 / 63 = 70

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So, Niki's time for one lap is 1 minute 10 seconds (70 seconds).
5 0
3 years ago
Need solved fast! I can’t do it!!
sergeinik [125]

Answer:

<u>Please read below.</u>

Step-by-step explanation:

The instructions were followed, horizontal or vertical path and never diagonal:

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6 0
3 years ago
Your friend says that 14.5% is equivilent to 14.5
SCORPION-xisa [38]
14.5% = 0.145 = 145/1000

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<span>So 14.5% is a hundredth the size of 14.5, so they are not equal and the friend is incorrect.</span>
4 0
3 years ago
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