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Elodia [21]
2 years ago
7

Marianne chose an integer. She subtracted 7 then multiplied the difference by -5. The product was 60. What integer did she chose

Mathematics
1 answer:
Pepsi [2]2 years ago
5 0

Answer:

Step-by-step explanation:

(x-7) * -5 = 60

-5x + 30 = 60

5x  = 60 - 30

x = 30/-5

so x = -5

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Describe the key aspects of the function f(x) = –x2 – 2x – 1.
amid [387]

Answer:

x-int of -1; y-int of -1; parabola that is reflected along the x-axis.

3 0
3 years ago
Are the graphs of the lines in the pair parallel? Explain. Find the slope of a line parallel to 5x+2y=6
Sonja [21]

Answer:

Yes the graphs of the lines are in pair parallel.

Step-by-step explanation:

They are in pair parallel because they do not touch each other. To find the slope of the line that is parallel to 5x+2y=6...

The first thing to do is subtract 5x since its a positive so it would look like this:

5x+2y=6

<u> -5x      =-5x</u>

Next you would divide by 2 on each side so the y can be isolated:

5x+2y=6

<u>-5x     =-5x</u>

      <u>2y</u> = <u>-5x + 6</u>

      2          2

Lastly the 2 divided by 2 gets crossed out because they cancel each other out and divide -5x by 2 and 6 by 2 then you would be stuck with this:

y= -2.5x+3

So your parallel slope would be -2.5x.

8 0
3 years ago
Find the values of x and y - i will give brainliest if right
kherson [118]

Answer:

itd x=68 and y=5 I apolgize if its wrong

4 0
2 years ago
Z -7, when z=6 PLS HELP MY I AM NOT SURE IF I DID IT RIGHT I HAVE TO TURN THIS IN TOMORROW
Harlamova29_29 [7]

Answer:

Z-7

6-7

-1

Step-by-step explanation:

we have to replace the value of Z and then subtract by seven.

4 0
3 years ago
Read 2 more answers
What is the first term in a geometric sequence if the common ratio is − 2 and the sum of the first six terms is −105?
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\bf \qquad \qquad \textit{sum of a finite geometric sequence}&#10;\\\\&#10;S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad &#10;\begin{cases}&#10;n=n^{th}\ term\\&#10;a_1=\textit{first term's value}\\&#10;r=\textit{common ratio}\\&#10;----------\\&#10;r=-2\\&#10;n=6\\&#10;S_6=-105&#10;\end{cases}

\bf -105=a_1\left( \cfrac{1-(-2)^6}{1-(-2)} \right)\implies -105=a_1\left( \cfrac{1-(64)}{1+2} \right)&#10;\\\\\\&#10;-105=a_1\left( \cfrac{-63}{3} \right)\implies -105=a_1(-21)&#10;\\\\\\&#10;\cfrac{-105}{-21}=a_1\implies 5=a_1
7 0
3 years ago
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