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Mila [183]
3 years ago
7

Help? anyone 8th grade math

Mathematics
2 answers:
Zinaida [17]3 years ago
8 0

Answer: x = -1

Step-by-step explanation:

Sveta_85 [38]3 years ago
4 0

Answer:

-1

Step-by-step explanation:

\frac{8.7+x}{1.1} = 7

8.7 + x = 7.7

x = -1

\therefore the value of x is -1

Hope this helps!

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Plot the zeros of this function:<br><br> f(x) = (x – 1)(x – 7).
vredina [299]

Answer:

\boxed{\mathrm{view \: attachment}}

Step-by-step explanation:

The zeros of a function is where the function crosses the x-axis. The x-intercepts are the zeros of a function.

f(x) = (x - 1)(x - 7)

Let output equal to 0.

0 = (x - 1)(x - 7)

Set factors equal to 0.

x-1=0\\x=1

x-7=0\\x=7

The zeros of the function are x=1 and x=7.

5 0
3 years ago
There are two mystery numbers. The sum of 2 times the first number and 5 times the second number is -5. The sum of 3 times the f
Leokris [45]

Answer:

the two numbers are -5 and 1

Step-by-step explanation:

Let x and y be the first number and second number respectively.

According to the question, we can find 2 equations:

2x + 5y = -5

3x + 10y = -5

On solving,

x = -5

y = 1

5 0
3 years ago
Read 2 more answers
6 = z/4.5<br><br> please answer
Veseljchak [2.6K]
Answer: z= 1.3

Divide both side by 4.5
6 0
3 years ago
Fill in the blanks plzzzzz ​
zmey [24]

Answer:

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Step-by-step explanation:

3 0
3 years ago
An ice cream bar was 692 calories. If they increased the size of the bar by 3%, what is the expression to find the new calorie c
Romashka [77]
B= ice cream bar
C= new calorie count

Expression:
C=(0.03B) + B

C=(3% * 692)+692
C=(0.03 * 692)+692
C=20.76+692
C=712.76 or rounded to 713= new calorie count

Hope this helps! :)
3 0
3 years ago
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