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WINSTONCH [101]
2 years ago
14

What is the value of y in the equation 5x+2y=20 when x = 0.3?

Mathematics
1 answer:
zavuch27 [327]2 years ago
8 0

Answer:

y = 9,25

Step-by-step explanation:

(5*0,3) + 2y = 20 (x=0,3)

1,5 + 2y = 20 .  (-1,5)

2y = 18,5 ( /2)

y = 9,25

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Find the sum of the first 47 terms of the following series, to the nearest integer.
topjm [15]

Answer:

The sum of the first 47 terms of the given series = 6016

Step-by-step explanation:

Given the sequence

13, 18, 23, ...

An arithmetic sequence has a constant difference 'd' and is defined by

a_n=a_1+\left(n-1\right)d

18-13=5,\:\quad \:23-18=5

As the difference between all the adjacent terms is the same.

so

d=5

a_1=13

Arithmetic sequence sum formula

n\left(a_1+\frac{d\left(n-1\right)}{2}\right)

Put the values

d=5

a_1=13

n=47

=47\left(13+\frac{5\left(47-1\right)}{2}\right)

=47\left(13+\frac{5\left(47-1\right)}{2}\right)

=47\left(13+115\right)

=47\cdot \:128

=6016

Thus, the sum of the first 47 terms of the given series = 6016

8 0
3 years ago
Factor out the greatest common factor. If the greatest common factor is 1, just retype the polynomial.
Sholpan [36]

Answer:

3u(u - 2)

Step-by-step explanation:

greatest common factor: 3u (both are divisible by 3, and include the variable u)

factor: 3u^2/3u = u; -6u/3u = 2

new polynomial: 3u(u - 2)

6 0
2 years ago
8^0 is greater than 8^1 true or false
liq [111]

Answer:

False 8^0 is not greater than 8^1

Step-by-step explanation:

8^0 = 1

8^1= 8

8>1

3 0
3 years ago
Can you use a proportion to solve for a missing side length when given two similar triangles?​
VARVARA [1.3K]

Answer:

yes you can.

Step-by-step explanation:

to answer the question asked you can solve a proportion when given two triangles, but in this one I feel somethings missing like its possibly a multiple choice.

I tried every way I could think of and got this 6.5 for the bottom A-B

and for x  about 4.153311-

6 0
3 years ago
What is 1.3333333 as a fraction ?
denis23 [38]
The answer is 1 3/9. The reason is because it repeats 3 so it would be 9 at the bottom.
8 0
3 years ago
Read 2 more answers
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