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TiliK225 [7]
3 years ago
8

Help plsssssssssssss

Mathematics
2 answers:
jonny [76]3 years ago
7 0

Answer:

144

Step-by-step explanation:

72% of 200 is 144

Equation: 0.72*200 = 144

Elena-2011 [213]3 years ago
7 0

Answer:

B. 144

Step-by-step explanation:

You might be interested in
How to find the volume
aev [14]

Answer: 1.44 centimeters cubed.

Step-by-step explanation:

To find the volume of a rectangular prism, use the following formula:

V=whl, where w equals the width, h equals the height, and l equals the length.

Substituting 0.6, 1, and 2.4 for the variables:

V = 0.6 * 1 * 2.4

V = 1.44 cm^3

The volume of the prism is 1.44 centimeters cubed.

7 0
3 years ago
For every 3 laps that Jackie swims, Ronnie swims 4 laps. During practice, they swam a combined total of 63 laps. How many laps d
Flura [38]

Answer:

36 laps Ronnie swim during practice .

Step-by-step explanation:

Let us assume that the laps that Ronnie swims be x .

Let us assume that the laps that Jackie swims be y .

As given

For every 3 laps that Jackie swims, Ronnie swims 4 laps.

i.e

3 × laps that Ronnie swims = 4 × laps that Jackie swims

3 × x = 4 × y

3x = 4y

Equation becomes

x + y  = 63

Thus by using 3x = 4y .

y = \frac{3x}{4}

Thus

x +\frac{3x}{4} = 63

4x + 3x = 63 × 4

7x = 252

x = 36

Put the value of x in the equation x + y  = 63

36 + y = 63

y = 63 - 36

y = 27

Therefore the 36 laps Ronnie swim during practice .

4 0
3 years ago
Select the polynomial that is a perfect square trinomial.
alexdok [17]

Answer:

Option D. It's a perfect square trinomial.

Step-by-step explanation:

(a) 36x² - 4x + 16

= (6x)² - 2(2x) + (4)²

It's not a perfect square trinomial

(b) 16x² - 8x + 36

= (4x)² - 2x(4x) + (6)²

It's not a perfect square trinomial

(c) 25x² + 9x + 4

= (5x)² + 2(\frac{9}{2}x) + (2)²

It's not a perfect square trinomial

(d) 4x² + 20x + 25

= (2x)² + 2(10x) + (5)²

= (2x+5)²

It's a perfect square trinomial.

8 0
3 years ago
Read 2 more answers
Find the value(s) of k so that the points (-3,2) and (9, k) are 13 units apart.
topjm [15]

Answer: k = 11

Step-by-step explanation: math

3 0
3 years ago
1. Calculate the slope of the line between the two distinct points that create the hypotenuse for each of the three triangles sh
valentina_108 [34]

Calculate the equation for the line: y = mx + b

First, find the slope. Find two points, and use point-slope formula:

m = slope = (y₂ - y₁)/(x₂ - x₁)

Let (x₁ , y₁) = (0 , 0) & (x₂ , y₂) = (9, 6)

slope = (9 - 0)/(6 - 0) = 9/6

Plug in 9/6 (or a simplified version) for m

y = (3/2)x + b

Now, solve for b. Get a coordinate point to use in the equation. In this case, use (6, 4), in which x = 6, y = 4

4 = (3/2)(6) + b

Simplify.

4 = (3 x 6)/2 + b

4 = 3 x 3 + b

4 = 9 + b

Isolate the b. Note the equal sign, what you do to one side, you do to the other. Subtract 9 from both sides

4 (-9) = 9 (-9) + b

b = 4 - 9

b = -5

Plug in -5 for b

--------------------------------------------------------------------------------------------------------

y = (3/2)x - 5 is your equation (2.); 3/2 is your slope (1.)

~

7 0
3 years ago
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