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Gemiola [76]
3 years ago
12

In the diagram of triangle ADC below, EB || DC, AE = 9, ED = 5, and AB = 9.2. What is the length of AC, to the nearest tenth?

Mathematics
1 answer:
dalvyx [7]3 years ago
8 0

Answer:

14.3

Step-by-step explanation:

9/5= 9.2/x (cross multiply)

5 x 9.2= 46

46 ÷ 9 = 5.1

9.2 + 5.1 = 14.3

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150 students at York Middle School took part in the school clean up. This is 30% of
Step2247 [10]

Answer:

500 students.

Step-by-step explanation:

Since 150 students make up 30% of the school's student population, the equation 150/30=x/100. In order to find x, cross multiply x*30 and 150*100. Then set the two results equal to each other and solve. 15000=30x.  15000/30=500. x=500.

6 0
2 years ago
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Your brother is 1/6 your age. Your sister is 7 years older than your brother. Your sister is 10 years old. Write and solve an eq
mr Goodwill [35]

Answer:

you are 18

Step-by-step explanation:

10-7=3

3*6=18

or backwards,

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5 0
3 years ago
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WILL GIVE BRAINLESS<br> what is the missing number of 4:9=36:
lora16 [44]

Answer:

81

Step-by-step explanation:

4 : 9

36 : ?

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7 0
2 years ago
Find the area of a regular polygon with 7 sides that has a side length of 6 inches and an apothem of 8 inches
alukav5142 [94]

We can always split a regular polygon with n sides into n triangles, whose base is the side of the polygon and whose height is the apothem of the polygon. So, the sum of the areas of all these triangles is

A=n\times \dfrac{s\cdot a}{2}

where n is the number of sides, s is the side length, and a is the apothem length.

So, you just need to plug you values in: in your case, you have n=7,\ s=6,\ a=8

So, the formula becomes

A=7\times \dfrac{6\cdot 8}{2} = 7 \times 6\cdot 4 = 168

3 0
3 years ago
Round number to nearest tenth
xz_007 [3.2K]

Answer:

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Step-by-step explanation:

5 0
2 years ago
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