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irakobra [83]
3 years ago
6

7.1 in.

Mathematics
1 answer:
Scilla [17]3 years ago
3 0

Answer:

1:The base of the rectangular pyramid shown has an area of 50 square inches

2:A triangular face with a base of 10 inches has an area of 28 square inches

3:A triangular face with a base of 5 inches has an area of 17.75 square inches

4:The total surface area of the pyramid is 141.5  square inches.

Step-by-step explanation

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Number 2 and please provide a step by step explanation!!!!
Alekssandra [29.7K]

The number of students in 5th grade is 60, since 24% of 250 is 60.

Since 90 is 38% if 250, 38 is going to be the percent of all students in sixth grade.

20% of 250 is 50, so the percent of all students in seventh grade is 50.

Finally, 45 is 18% of 250, so 18 percent of all students are in eight grade.

Hope this helped :)

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2 years ago
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Latrina received 18 letters and 8 bills. What is the ratio of bills to letters?
kolbaska11 [484]

Answer:

8 to 18

Step-by-step explanation:

8 to 18

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Indicate true or false as to whether the following equation is quadratic 2x-4x+1=0
saul85 [17]
The answer to the problem would be false
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2 years ago
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Find the value of x and y
Yakvenalex [24]

Answer:

x = 80, y = 122

Step-by-step explanation:

I got this equation by using vertical angles to create a complimentary angle pair (they sum to 90 degrees).

3/4x+2/5x-2=90°,

23/20x - 2=90°,

23/20x = 92°,

92/(23/20)

20/(1/4)

20(4)

= 80.

Since the angles are a linear pair on the left side(they sum to 180 degrees). Just subtract 180 from 3/4x-2 and substitute x into the expression.

180-(3/4(x)-2), 180-3/4(80)+2 = 120+2 = 122

7 0
3 years ago
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12) You can exchange $5 US dollars for L123 Honduran Lempiras. How many dollars can you exchange L2,300 for? ----​
Anit [1.1K]

Step-by-step explanation:

$5 US dollar = L123 Honduran Lempiras

L2300Honduran Lempiras = x ( Let $ be x)

By using chain rule, we get

5×2300 = 123×x

or, 11500 = 123x

or, x = 11500÷123

hence, x = 93.49593496

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1 year ago
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