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Vedmedyk [2.9K]
3 years ago
6

dan can clean an attic in 13 hours. Imani can clean the same attic in 14 hours. Find how long it would take them if they worked

together
Mathematics
1 answer:
monitta3 years ago
7 0
13.5

14+13=27
27÷2=13.5
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(33)(1/9 2−6+2) solve
gregori [183]
(33)(1/9•2-6+2)
18-6+2=14
33•1/14 = 33/14

The answer is 33/14 or 2.35714
4 0
3 years ago
Find the value of "c" by completing the square.<br><br>h²- 16h + c​
Sunny_sXe [5.5K]

Answer:

c = 64

Step-by-step explanation:

(a-b)² = a² - 2ab + b²

h²- 16h + c​

So, 2ab = 16h

2 * h * b = 16h    {as a =h}

b= 16h / 2h

b = 8

c = b² = 8*8 = 64

3 0
2 years ago
Type the correct answer in each box.
Fittoniya [83]

the answer would be 2.5

8 0
3 years ago
Read 2 more answers
Use row operations to solve the system.
Aleks04 [339]

Answer:

x = 2, y = 7, z = 12

Step-by-step explanation:

x + y - z = -3 (1)

3x - y + z = 11 (2)

x - 4y + z = -14 (3)

add (1) and (2)

4x = 8 x = 2

add (1) and (3)

2x - 3y = -17

2(2) - 3y = -17

-3y = -17 - 4

-3y = -21

y = 7

Find z using any equation

x + y - z = -3

2 + 7 - z = -3

9 - z = -3

z = 12

3 0
3 years ago
A flat rectangular piece of aluminum has a perimeter of 70 inches. The length is 11 inches longer than the width. Find the width
rodikova [14]

perimeter = 2L +2w

L = w+11

70 = 2(w+11) +2w

70 = 2w+22+2w

70= 4w + 22

48 = 4w

w=48/4 = 12

width = 12

length = 12+11 = 23

2x12 = 24

2x23 = 46

46+24 = 40

 length = 23 inches, width = 12 inches

Answer is D

5 0
3 years ago
Read 2 more answers
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