3 years ago

M∠1=(3x+8)°, m∠2=(3x+18)°, and m∠3=(7x+9)°. What is m∠3?

Mathematics

1 answer:

deff fn [24]3 years ago

8 0

Answer:

87.4°

Step-by-step explanation:

(3x + 8) + (3x + 18) + (7x + 9) = 180

3x + 8 + 3x + 18 + 7x + 9 = 180

add the common numbers

13x + 35 = 180

subtract 35

13x = 145

divide 13

x = 11.2

then plug it back in to m<3

7(11.2) + 9

78.4 + 9

= 87.4°

You might be interested in

M∠=6, m∠=+20, and m∠=40+3. List the sides of △ in order from shortest to longest.

oksian1 [2.3K]

Answer:

m∠=6, ,m∠=+20,m∠=40+3

the larger the angle, the larger the side

7 0

2 years ago

Someone explain to me how to solve and write out an equation in slope-intercept form for example: 4x-6y=12

Ronch [10]

££€¥€€€€€££¥¥£¥¥¥¥ On chart

4 0

2 years ago

Read 2 more answers

a farmer needs to buy fertilizer for his farmland. The instructions on the bag of fertilizer say 49.5 lb of fertilizer is needed

g100num [7]

Answer:

The farmer can cover approximately 40 acres of land with 2,000 pounds of fertilizer

Step-by-step explanation:

6 0

3 years ago

Jude is making a door for a door frame with an opening that measures 9 feet by 3 feet. Which diagonal length should

Tasya [4]

Answer:

is it B / 90

Step-by-step explanation:

trust me lol

5 0

3 years ago

Read 2 more answers

I need help with this ^

lutik1710 [3]

Answer:

Step-by-step explanation:

5z-25=180

5z=180-25

5z=155

z=31

8 0

3 years ago

Read 2 more answers

M∠1=(3x+8)°​, m∠2=(3x+18)°​, and m∠3=(7x+9)°. What is m∠​3?

M∠1=(3x+8)°, m∠2=(3x+18)°, and m∠3=(7x+9)°. What is m∠3?