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Natalka [10]
3 years ago
14

(7 + x) + 7x=? I need help

Mathematics
2 answers:
zepelin [54]3 years ago
6 0

Answer:

the answer is =8x+7

Step-by-step explanation:

hoped I helped:)

Zina [86]3 years ago
3 0
7+8x should be the correct answer
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Use the graph below to estimate the solution to the system of equations shown.
Mila [183]

Answer: The second choice is answer.

Step-by-step explanation:

<h3>The first line (Blue One)</h3>

y=-x-3 (Slope is -1 and intercepts y at -3)

<h3>The second one (Red One)</h3>

y=2x-8 (Slope is 2, to find y-intercept. Substitute x = 0 then we get -8) (For x-intercept, it's 4. Just substitute y=0 to get x-intercept.)

Because there are choices, it's easy to notice.

The first one, x = -4 and almost -5 which is not right. (x is around 1 almost 2.)

The second one, x = 1 and almost 2 is right.

The third one, x = -1 and almost -2 is not right (The intersection isn't even at -1 or any negative number for x-axis.)

The fourth one, just like the first one... x = 4 almost 5

<h3>Or solve the equations.</h3>

y=-x-3\\y=2x-8

Substitute y=2x-8 in y=-x-3

2x-8=-x-3\\2x-8+x+3=0\\3x-5=0\\3x=5\\x=\frac{5}{3}\\(x=1\frac{2}{3})

Look at the value of x then find the answer that matches the value of x.

Now for y, substitute x = 5/3 in y = -x-3 (or in 2x-8 if you want.)

y=-\frac{5}{3} -3\\y=-\frac{5}{3} -\frac{9}{3} \\y=-\frac{14}{3} \\(y=-4\frac{2}{3} )

So the answer is the second choice.

6 0
3 years ago
alicia cashed her paycheck and used half of her earnings to take three friends to dinner. She spent $42.15 on dinner and she bro
Nana76 [90]
X - $42.15 > $20.00
<u>  + $42.15 + $42.15</u>
              x > $62.15
5 0
3 years ago
Which statement correctly describes the relationship between the point (-3, 2), and point Q?
Korvikt [17]

Answer: it is a reflection across the x-axis sorry if I responded late

4 0
2 years ago
What is 2340 divided by 53?
Jet001 [13]
44.1 is the answer to that
4 0
3 years ago
Read 2 more answers
The cost of 19/4 m of wire Is Rs.171/2 .The cost of one meter of the wire is ________.​
Pavel [41]

Answer:

.The cost of one meter of the wire is _<em><u>Rs18</u></em>_______.

Step-by-step explanation:

the cost of 19/4 m of wire = Rs.171/2

the cost of 1m of wire = Rs.171/2×4/19=Rs18

5 0
3 years ago
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