2 years ago

Write a two-column proof.

Mathematics

1 answer:

Alex2 years ago

5 0

Refer to the attachment!

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72.2 is incorrect :( i don’t know how to solve this <br> (Geometry)

Triss [41]

AC and DB are the same length. Set the two to equal each other and solve for y.

9y + 1 = 8y +17

Subtract 8y from both sides:

y + 1 = 17

Subtract 1 from each side:

y = 16

Now you know Y you can find the the length of DB:

DB = 8y +17 = 8(16) +17 = 128 + 17 = 145

EB is half of DB:

EB = 145 / 2

EB = 72.5

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3 years ago

Walter walked 15.5 blocks from his house to work. It took him 35 minutes. What is his rate in blocks per hour?

Naddik [55]

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2 years ago

Problem page the sum of two numbers is 67 and the difference is 11 . what are the numbers?

pav-90 [236]

Try this:
1. sum of numbers is x+y=67, the difference between them is x-y=11
2. it is possible to make up and resolve the system:
$\left \{ {{x+y=67} \atop {x-y=11}} \right. \ =\ \textgreater \ \ \left \{ {{x=39} \atop {y=28}} \right.$

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2 years ago

Each month for 7 months, Samuel mows 3 lawns. How many more lawns does he need to mow before he has mowed 29 lawns

maria [59]

7×3=21 so he has 7 more lawns or 2 1/3 months

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3 years ago

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Your answer must be simplified. x+5≤−4

PilotLPTM [1.2K]

Answer:

x≤−9

Step-by-step explanation:

x+5≤−4

-4-5=-9

you subtract 5 form each side

therefore x≤−9

hope this helps

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3 years ago

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