2 years ago

Use the diagram and the value of x to find the measures of BCE and ECF.

Mathematics

1 answer:

stepan [7]2 years ago

7 0

Answer:

125° and 55°

Step-by-step explanation:

∠ BCE and ∠ ECF are adjacent angles and are supplementary, thus

10x + 15 + 5x = 180, that is

15x + 15 = 180 ( subtract 15 from both sides )

15x = 165 ( divide both sides by 15 )

x = 11

Thus

∠ BCE = 10x + 15 = 10(11) + 15 = 110 + 15 = 125°

∠ ECF = 5x = 5(11) = 55°

You might be interested in

The amount of gas that a helicopter uses is directly proportional to the number of hours

AleksandrR [38]

Answer:

60 gallons

Step-by-step explanation:

We can create a ratio for this. If we consider 2 as the 1 in the ratio, we have a ratio of 1 : 2.5. Therefore, we just need to multiply 24 by 2.5, which equals 60.

7 0

2 years ago

Find the slope of each line.

Jlenok [28]

Answer:

5/7

Step-by-step explanation:

8 0

2 years ago

forty yards of fabric are used to make 9 school banners. how many yards of fabric does banner use? between what 2 whole numbers

saul85 [17]

Answer:

4 4/9,4 and 5

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Please please help I don’t understand

9966 [12]

Answer:

2x+3y= 1500

Step-by-step explanation:

8 0

2 years ago

Paolo is using his grandmother’s cookie recipe. He always doubles the amount of chocolate chips and oats. The recipe calls for 2

lesya692 [45]

Answer:

6 1/3 divided by 2 1/2 = x

Step-by-step explanation:

Hope this helps.

6 0

2 years ago