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vodomira [7]
3 years ago
5

Juanita did this work to solve an equation. Did she make an error?

Mathematics
2 answers:
Sergio [31]3 years ago
6 0
Yes it should be a negative nine not a positive nine

Have a nice day : )
sashaice [31]3 years ago
6 0

Answer:

B

Step-by-step explanation:

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A soccer field has an area of 7/8 square miles. The length of the field is 2/5 miles. What is the width of the soccer field?
weeeeeb [17]
7/8=2/5x
If you solve this you get 2.1875 or 35/16
5 0
3 years ago
Use the graphing calculator to find the solution(s) of x2-2x-x 5 to the nearest tenth.
alexandr402 [8]

Answer:

-1.4 and 3.4

Step-by-step explanation:

The solutions of a quadratic are the x values of the x-intercepts where the function crosses the x-axis.

Type in your equation to graph. Then zoom in on the x-axis and find where the function crosses.

See attached picture.

7 0
3 years ago
WILL MARK BRAINLIEST PLEASE HELP
vlada-n [284]

Answer:  

2x + (-2x + 3) = 3

2x - 2x +3

0 + 3

3

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

2x -2x - 7

0 -7

-7

-(5x -1) + 5x = 1

-5x +1 + 5x

-5x + 5x + 1

0 + 1

1

Step-by-step explanation: In addition, the parentheses help identify the individual addends. If adding a negative number, it is the same as subtracting. If there is a negative sign outside the parentheses, as in example c, you must distribute it: the signs of the numbers within the parentheses must be reversed when the parentheses are removed.

6 0
3 years ago
A merchant sold a pen for $6.90 ,thereby making a profit of 15% on her cost calculate the cost of the pen to the merchant to the
NeTakaya
So you know the merchant made a 15% profit on the pen, so she bought it for a cheaper price. To find the cost of the pen before you have to take the price now, $6.90 and times it by 85%. You do 85% because you subtract the 15% she saved from 100% and you get 85%. So 6.90x.85= 5.865 which rounds to $5.87
7 0
3 years ago
What is 4x+3(2x-1) -4x? This is a combining like terms equation by the way.
aksik [14]
4x+3(2x-1) -4x     3(2x-1)= 6x-3 -4x     4x+6x-4x=    6x-3
3 0
3 years ago
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