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2 years ago

What is the numerical sum of the degree measures of ∠DEA and ∠AEB?

Mathematics

2 answers:

Valentin [98]2 years ago

6 0

Answer:

<DEA and <AEB?

180

What are the numerical measures of the angles?

X= 14.5

m<DEA= 39.5

m<AEB=140.5

Step-by-step explanation:

inessss [21]2 years ago

3 0

The angles are supplementary, therefore totaling them at 180°.

And because I'm bored, I'll solve for x for you!

(x + 25) + (9x + 10) = 180
10x + 35 = 180
Subtract 35 from both sides.
10x = 145
Divide by 10 on both sides.
x = 14.5

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Ben and Landon took turns driving on their recent 820 mile road trip. Ben averaged 60 miles per hour while landon averaged 56 mi

Furkat [3]

Landon drove for 5 hours.

Step-by-step explanation:

Given that,

Total distance of the road trip = 820 miles

Speed of Ben = 60 miles per hour

Speed of Landon = 56 miles per hour

Step 1 :

Let 'x' be the number of miles Ben drove

Let 'y' be the number of miles Landon drove

Step 2 :

The trip took them 14 hours to complete 820 miles together.

x + y = 14

60x + 56y = 820

Step 3 :

Solve the linear system x+ y= 14 and 60x+ 56y= 820

x + y = 14

x = 14 - y

Step 4 :

Substitute x= 14-y in the second equation,

60(14-y) + 56y = 820

840 - 60y + 56y = 820

Step 5 :

Keeping y terms on one side and constants on other side,

60y - 56y = 840 - 820

4y = 20

y = 20/4

y = 5

Since 'y' is the number of miles Landon drove, the time Landon drove is 5 hours.

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2 years ago

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sergey [27]

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lidiya [134]

Answer:

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Step-by-step explanation:

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