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nika2105 [10]
3 years ago
13

What is -1/9 + -5/7​

Mathematics
2 answers:
Lerok [7]3 years ago
8 0

Answer: 52/65

Make the denominator the same fraction and do for both numerator and denominator

Zepler [3.9K]3 years ago
5 0

Answer:

- 52/63

Step-by-step explanation:

- 7/63 + - 45/63 = - 52/63

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-3(1-2x)-3=-20-8x what is the work and answer
larisa86 [58]
You have to keep order of operations in mind.

1. Take care of the parentheses; distribute.
-3+6x-3=-20-8x
Simplified: 6x-6=-20-8x

2. Isolate the x variable.
Add 8x to both sides and add 6 to both sides.
14x=-14

3. Solve for x.
Divide by 14 on both sides.
x=-1
4 0
3 years ago
The side of cube is 3m 30cm long, find out its volume​
Anettt [7]
90 volume because 3 multiples by 30 = 90
7 0
2 years ago
Cathrine was concerned about her report card grade. She had 5 tests the whole semester. If her scores on each test were 93, 82,
enyata [817]

Answer:

81.6

Step-by-step explanation:

mean/average of her grade = sum of all scores/the number of scores

= (93+82+74+92+67)/5

= 81.6

4 0
3 years ago
Help me plsssss I am failing in this class pls give me step by step
Vinvika [58]
Y=-3x+2 bc the line is going down so it’s negative and the y intercept is 2
5 0
2 years ago
Read 2 more answers
Part A: Marguerite rented a truck at $125 for 2 days. If she rents the same truck for 5 days, she has to pay a total rent of $27
kobusy [5.1K]

Answer:

y = 50x+25

f(x) = 50x+25

Step-by-step explanation:

Using the slope intercept form of the equation, y = mx+b

where x is the amount per day and b is the flat fee

2 days

125 = 2x+b

5 days

275 = 5x+b  

Subtract

275 = 4x+b  

125 = 2x+b

---------------------

150 = 3x

Divide by 3

150/3 = 3x/3

50 =x

The cost per day is 50 dollars

y = 50x +b

Using the data for 2 days

125 = 50*2 +b

125 = 100 +b

125-100 = b

b = 25

The equation is y = 50x+25

f(x) = 50x+25

To graph, The x axis is number of days and the y axis is total cost

The number of days starts with 0, which is the y intercept

Let x = 0, y =25

Using the slope, we go 50 up and 1 to the right ( 50 dollars per day)

The next point plotted ins ( 1,50)

Draw a straight line

4 0
3 years ago
Read 2 more answers
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