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MAVERICK [17]
3 years ago
15

3

Mathematics
2 answers:
sesenic [268]3 years ago
6 0
0, -2, -4. Shown above but might as well answer too
nordsb [41]3 years ago
5 0

Answer:

0,-2,-4

Step-by-step explanation:

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Can anyone give a step-by-step guide on how to answer these types of questions? I'm really struggling with similar shapes so tha
Dafna11 [192]

Answer:

a) 8cm

b) 19.8cm

Step-by-step explanation:

The key to these types of questions is to keep proportions in mind.

To solve the first question, you want to find the proportion of the smaller triangle to the bigger triangle. The length of AE is 6cm, but the length of AD is (6+4) = 10cm. So the proportion of the bigger triangle to the smaller triangle is 10/6. So to find the lengths of the sides of the bigger triangle, we want to keep this number in mind.

The BE side is parallel to CD, so we have to use length of BE multiplied by the proportion in order to get the length of CD.

CD = 4.8 * (10/6) = 8

CD = 8cm

For the second question, you use the same concept to find all the other side lengths. The only one you need left for the shape EBCD is side BC. Do the same thing you did before, take the length of the side of the smaller triangle that corresponds with side AC on the bigger triangle. In this case, it's AB, which is 4.5cm. Multiply this by 10/6 to get AC.

AC = 4.5 * (10/6) = 7.5

AC = 7.5

But we're not done. We just found the length of AC, but we need the length of BC to calculate the perimeter. To do this, we want to take the length of AC - the length of AB.

7.5 - 4.5 = 3

So the length of BC is 3cm. Now, to find the perimeter, just add all the sides of EBCD together.

4.8 + 4 + 8 + 3 = 19.8cm.

Hope this helps.

8 0
2 years ago
Read 2 more answers
You need to purchase supplies for the trip. You have $1000 to spend.
SCORPION-xisa [38]

Answer:

241.50

Step-by-step explanation:

Oxen= 40 x 2 = 80

Food=0.20 x 500 =100

Clothing = 10 x 5 = 50

total = 230

Tax= 5 percent x 230 divided by 100

= $11.50

230 +11.50

= 241.50

6 0
2 years ago
Lisa drove 7,000 miles in 70 days. She drove the same number of miles each day.
inysia [295]

Answer: I'd assume its B 100 miles each day.

Step-by-step explanation:

Because 70 x 100 is 7,000 which is equal to the amount of miles stared in the question

5 0
3 years ago
Read 2 more answers
For brainiest:):):):)::):):):)
scZoUnD [109]

Answer:

The unit rate is accurately \frac{1}{4} (km/minute)

Step-by-step explanation:

(1,1/4) means that the vehicle traveled 1/4 km within 1 minute.

The unit rate for this problem is also known as the speed of the vehicle.

So to find the speed, you need to use distance over time.

---> Unit rate: \frac{1}{4}\\ / 1 = \frac{1}{4} (km/minute)

(2,1/2) means that the vehicle traveled 1/2 km within 2 minutes.

Same process:

---> Unit rate: \frac{1}{2} / 2 =

Because of this, the unit rate is accurately \frac{1}{4} (km/minute)

8 0
2 years ago
I read 1/4 of the book on Saturday and 2/5 of the remainder on Sunday. If 36 pages still remain to be read, how many pages are t
VashaNatasha [74]
He read 13/20 pages
5 0
3 years ago
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