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vfiekz [6]
2 years ago
9

If −x+5y=7 is a true equation, what would be the value of -2(-x+5y)

Mathematics
1 answer:
Alecsey [184]2 years ago
4 0

Answer:

-14

Step-by-step explanation:

Given -x+5y=7

Now we substitute x+5y into -2(-x+5y)

-2(-x+5y) = (-2)(7)

= - 14

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Step-by-step explanation:

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8 0
3 years ago
Express these numbers in standard form: 1) 35.18 * 1000000; 2) 0.00000235 / 1000000
Julli [10]
Equivalent of fractions using decimals
5 0
3 years ago
Can you help please? It would be helpful.
steposvetlana [31]

Answer:

660 square feet

Step-by-step explanation:

1 chain = 66 feet

Length ( l ) = 66 feet

Breadth ( b ) = 10 feet

To find :

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8 0
3 years ago
What is the 6th term of the geometric sequence 4, −20, 100, ...?
shtirl [24]
Let's calculate r of this G.P: (-20)/(4) = - 5(100)/(-20) = - 5So r = -5
The formula to find the nth term of a GP is;
a(n) = a(r)ⁿ⁻¹
<u />a₆ = a(r)⁶⁻¹
a₆ = 4(-5)⁵ = -12500<u />
3 0
3 years ago
Read 2 more answers
.William sold half of his comic book collection and then purchased 10 more . He now has 24 comic books period how many books did
Assoli18 [71]

Answer:

28 books

Step-by-step explanation:

Let x represent the number of books .William owned before anything happens

x/2 + 10 = 24

2(x/2 + 10) = 2(24)

x + 20 = 48

x = 48 - 20

x = 28

8 0
2 years ago
Read 2 more answers
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