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serious [3.7K]
4 years ago
10

Sofia can type the work in 10 hours. Noga can do it in 15 hours. They work together for 4 hours. Then Sofia left and Noga finish

ed the job. How long did it take to do the entire job?
Mathematics
2 answers:
Slav-nsk [51]4 years ago
7 0

Answer:

The answer is 9 hours

Step-by-step explanation:

sweet [91]4 years ago
3 0

Answer:

4 hours

Step-by-step explanation:

You might be interested in
Use the given graph. Determine the period of the function.
Ivahew [28]

Answer:

3

Step-by-step explanation:

Period of a function is the period after which the function attains the same value

in the graph attached with this problem we can see that

f(0)=1

the value of x for which function f(x) attains the value 1 again is at

x=3

f(3)=1

similarly , we see

f(6)=1 , f(9)=1

Hence we see that after every increased value of x by 3 units , we attain the same value of function . hence the period of the function is 3

6 0
3 years ago
Which expressions is equivalent to 50c - 25? (There is more than one answer)
Katen [24]

Answer:

C

Step-by-step explanation:

25 (2c-1)

(25 x 2c) - (25 x 1)

50c - 25

6 0
3 years ago
I need help and i would appreciate it and can you explain (That's if you can explain)
Finger [1]

Answer:

x=-2

y=-3

Step-by-step explanation:

-9x+4y = 6

9x+5y = -33

We will add these together to eliminate x

-9x+4y = 6

9x+5y = -33

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

0x +9y =- 27

9y = -27

Divide by 9

9y/9 = -27/9

y =-3

We still need to find x

9x +5y = -33

9x +5(-3) = -33

9x-15 = -33

Add 15 from each side

9x+15-15 =-33+15

9x=-18

Divide by 9

9x/9 = -18/9

x = -2

6 0
4 years ago
Please answer the question it’s being timed tysm!
son4ous [18]

Answer:

a=1,b=3,c=10

Step-by-step explanation:

a= the number with the highest power, in this case it is x^2. Therefore, a=1.

b= the number with the second number, the one that has an x. Therefore, b=3.

c=the last number, the one with no variable. therefore, c=10

If this helps please mark as brainliest

3 0
3 years ago
Work out the size of angle x
Alekssandra [29.7K]

Answer:

66°

Step-by-step explanation:

By interior angle sum property of a triangle.

x + 79 \degree + 35 \degree = 180 \degree \\  \\ x + 114 \degree = 180 \degree \\  \\ x   = 180 \degree  - 114 \degree\\  \\ x   = 66 \degree\\  \\

4 0
4 years ago
Read 2 more answers
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