Find the area of a parallelogram with base B and height H b = 87 cm

h = 18.6 cm

Answers

Answer 1

Answer: area =hb
h=18.6
b=87
area=(18.6)(87)
a=1618.2 cm^2

Answer 2

Answer: The area would be 1618.2 cm. I think I am not positive.

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The two-way table shows the number of girls and boys who are right-handed or left-handed. What percent of left-handed people are girls? % Right-handed Left-handed Girls 8 2 Boys 9 2

Answers

There are a total of 4 left-handed people.
2 left-handed people are boys.
2 left-handed people are girls.

2/4 = 50%

50% of the the left-handed people are girls.

______________________________
| | Right-handed | Left-handed|
|------------------------------------------------------|
|Girls | 8 | 2 |
|------------------------------------------------------|
|Boys | 9 | 2 |
|_____|_____________|__________|

What percent of left-handed people are girls?

There are a total of 4 left handed people, 2 of which are girls.

2/4 = 1/2 = 50%

50% of left-handed people are girls.

grant starteda marathon at 8:00 A.M. he took 4 hours 49 minutes to complete the marathon. when did he crosd the finish line

Answers

If he starts at 8:00 AM and you start counting up by 1 hour at a time...

8:00 - 9:00 = 1 hour
9:00 - 10:00 = 1 hour
10:00 - 11:00 = 1 hour
11:00 - 12:00 = 1 hour

So far that is 4 hours that have passed and we are up to 12:00. Now remember, when we reach 12:00 we switch from AM to PM (that's 12 noon).

We only have 49 minutes left so now we just add that in

12:49 PM is when he crossed the finish line.

What is 9.765 rounded to the nearest tenth

Answers

You round it up to 9.8 because the hundredth place is above 5.

The 7 is the tens place, 6 is the hundredth, and 5 is thousandth.

it would be 9.8 rounded to the nearest tenth

Help me with my pre algebra hw

Answers

0.4 (2x + 1/2) = 3 [0.2x+(-2)] - 4
0.4 (2x + 1/2) = 3(0.2x-2) - 4

Then, you have to use the distributive property.
0.8x + 0.2 = 0.6x - 6 - 4
0.8x + 0.2 = 0.6x - 10
0.8x - 0.6x + 0.2 = -10
0.2x + 0.2 = -10
0.2x = -0.2 - 10
0.2x = -10.2
x = -10.2/0.2
x = -51

Does that make sense?

We just distribute the numbers out inside the parenthesis:

0.4(2x + $(1)/(2)$ ) = 3[0.2x + (-2)] - 4
(0.4 × 2x) + (0.4 × $(1)/(2)$ ) = (3 × 0.2x) + (3 × -2) - 4
0.8x + 0.2 = 0.6x - 6 - 4

Join the like terms:

0.8x + 0.2 = 0.6x - 10

0.8x - 0.6x = -10 - 0.2
0.2x = -10.2

Divide by 0.2 to isolate x

$(0.2x)/(0.2)$ = $-(10.2)/(0.2)$
0.2 and 0.2 cancels out

x = -51

What is the steps for solving 3x-10=84 and tell me what x equals

Answers

Answer:

31 1/3

Step-by-step explanation:

3x-10=84, given

3x=94, add 10 to both sides

x = 31 1/3, divide both by three

Answer:

3x = 84+10

3x = 94

x = 94/3

x = 31.33

A turtle is 20 5/6 inches below the surface of a pond. It dives to a depth of 32 1/4 inches. What is the change in the turtle’s position?

Answers

The change in the turtle's position is $11 (5)/(12)$ inches

From the question,

We are to determine the change in the turtle's position

From the given information

A turtle is 20 5/6 ( $20(5)/(6)$ ) inches below the surface of a pond

and

The turtle dives to a depth of 32 1/4 ( $32(1)/(4)$ ) inches

To determine the change in the turtle's position, we calculate the difference between the initial position of the turtle and its final position.

∴ The change in the turtle's position = $32(1)/(4) -20(5)/(6)$