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musickatia [10]
3 years ago
13

2x+5y=-7 7x+y=-8 Substitution Algebra 1

Mathematics
1 answer:
melomori [17]3 years ago
5 0

{x,y} = {-1,-1}

hope this helps

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Annie borrowed $354 from her parents to buy a tablet. She plans to pay the money back in 12 equal payments.
Ber [7]
$354 divided by 12 equal payments equals $29.50 a payment
8 0
3 years ago
A distribution with µ = 55 and σ = 6 is being standardized so that the new mean and standard deviation will be µ = 50 and σ = 10
Alekssandra [29.7K]

Solution:

\hbox{Let the distribution standarized is z}\\ \hbox{given:-}\mu =50\hbox{ and} \sigma =6\hbox{will become } \mu=50 \hbox{ and} \sigma =10\\\hbox{distribution standarized with value x=52 }\\\rm{so}\\\hbox{the value of score is:}\\z=\frac{x-\mu }{\sigma}\\\rm{if}\\p(x< 52)=p(z

3 0
3 years ago
Schaum earns (x4 + 16x) every month. His wife earns (3x4 + 11x) every
damaskus [11]

Given:

Schaum's earnings in a month = x^4+16x

His wife's earnings in a month = 3x^4+11x

Where x is the number of working days in a month.

To find:

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Solution:

We know that,

Total earnings = Schaum earnings + His wife's earnings in a month

                       =x^4+16x+3x^4+11x

                       =(x^4+3x^4)+(16x+11x)

                       =4x^4+27x

Therefore, the correct option is A.

7 0
3 years ago
Data is another word for fraction.<br> is it true or false
trasher [3.6K]
Im pretty sure its false because data is another word for a chart or a graphing a chart, or a graph
5 0
3 years ago
AC = 9x - 12, CD = 4x + 18, AD = ?​
GrogVix [38]

If we assume that point C is somewhere on segment AD, then,

AD = AC + CD

AD = (9x-12) + (4x+18)

AD = (9x+4x) + (-12+18)

AD = 13x+6    is the answer

3 0
3 years ago
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