2 years ago

Geometry and I need help

Mathematics

2 answers:

Helga [31]2 years ago

5 0

Y=11 is what i got not sure if it’s right

Yanka [14]2 years ago

3 0

Answer:

y = 11

Step-by-step explanation:

We use the definition of Supplementary Angles and Adjacent Angles.

Step 1: Set up equation 1 (Definition of Supplementary Angles)

5x - 4 +7x - 8 = 180

Step 2: Solve for x

12x - 4 - 8 = 180

12x - 12 = 180

12x = 192

x = 16

Step 3: Plug in x

5(16) - 4

80 - 4

76°

Step 4: Set up equation 2 (Definition of Supplementary Angles)

76 + 9y + 5 = 180

Step 5: Solve for y

9y + 81 = 180

9y = 99

y = 11

You might be interested in

The perimeter of a rectangle is 64 cm. The length is 12cm longer than the width what are the length and the width of the rectang

Vsevolod [243]

Answer:

Width of 10 cm, length of 22 cm

Step-by-step explanation:

P=2L+2w

64=2(12+w)+2w

64=24+2w+2w

40=4w

10=w

L=12+w

L=22cm

7 0

2 years ago

Which value shows the constant of proportionality for the equation y = 15x?

Alchen [17]

Answer:

Step-by-step explanation:

15x because its not multiplying or dividing or adding and subtracting

3 0

2 years ago

Your cups hold 0.25-liters of water plus you drank a 0.750-liter bottle of water at school. You drank 3.5 liters of water today.

Annette [7]

Answer:

4.50

Step-by-step explanation:

i hope i got it correct i'm in middle school

7 0

3 years ago

Divide 3 1/2 divided by 1 2/3

dybincka [34]

Answer:

2 1/10=

Answer: 2.1

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

68/80 as a fraction,percent,and decimal

madam [21]

68/80 is a fraction
34/40
17/20 is simplest form of fraction

percent means parts out of 100 so x/100
20 times 5=100 so
17/20 time 5/5=x/100=85/100 or 85%

decimal is normally a power of 10 so
85/100=0.85

8 0

2 years ago