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Mkey [24]
3 years ago
9

STATISTICS HELP PLEASE #3

Mathematics
1 answer:
Serga [27]3 years ago
5 0

Answer: the answer is cant see need to zoom the problem in more

Step-by-step explanation:

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Guys help me with a) and b) tasks<br>ANSWER:<br>a) 40<br>b) 25<br>Thanks&lt;3​
umka21 [38]

Step-by-step explanation:

there are 2 similar triangles : ABE and DCE

that means they have the same angles, and the scaling factor from one triangle to the other is the same for every side.

and that means that

DE/AE = EC/BE (= DC/AB)

we know that

AE = AD + DE

BE = BC + EC

a.

so, we have actually

DE/(AD+DE) = EC/(BC+EC)

DE/(10+DE) = 8/(2+8) = 8/10 = 4/5

DE = 4(10+DE)/5

5DE = 4(10+DE) = 40 + 4DE

DE = 40 cm

b.

AD/DE = 3/5

BC/EC must be 3/5 too.

15/EC = 3/5

15 = 3EC/5

75 = 3EC

EC = 25 cm

8 0
1 year ago
The volume of a prism is 48 cubic centimeters. If the length is 2 centimeters and the width is 4 centimeters. What is the height
Pie

Answer:

6

Step-by-step explanation:

volume is (lwh) since youre trying to find the height just multiply the 2 and 4 together to get 8. Then divide 8 by 48 to get your height.

4 0
3 years ago
I travel 1/10 mile in 1/2 second. how many can i travel in one second
Lorico [155]

Answer:

2/10 miles

Step-by-step explanation:

2 x 1/10 = 2/10

3 0
2 years ago
What is the value of 5x+3 when x=4
mylen [45]

Answer:

23

Step-by-step explanation:

plug and chug: 5(4)+3=20+3=23

7 0
3 years ago
Read 2 more answers
Together a refrigerator and a desk cost $216. Find the price of each if the refrigerator costs three times as much as the desk
zheka24 [161]

Refrigerator 162$ and desk cost 54

6 0
3 years ago
Read 2 more answers
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