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2 years ago

Jessica can walk 1.5 kilometers in 30 minutes. How long will it take her to walk 2.5 kilometers?

Mathematics

2 answers:

RUDIKE [14]2 years ago

7 0

Answer:

It should be 20minutes at a easy pace

Step-by-step explanation:

swat322 years ago

7 0

Answer:

It will take her 50 minutes in total to walk 2.5 kilometers.

Step-by-step explanation:

You first start off by finding how long it take to walk 1 kilometer. In this case it takes 20 minutes to walk 1 kilometer. Then multiply 20 times 2.5. You then receive your final answer... 50 minutes.

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9. A rectangle has a length 2 ft less than three times its width. What is the area of the rectangle when its

Burka [1]

Answer:

Area = 8 square ft

Step-by-step explanation:

Area of a rectangle = Length × width

suppose length = x

width = y

Here it is given that x = 3 y - 2

width is given as y = 2 ft

∴ x = 3 × 2 -2

x = 6 -2

x = 4

Area of rectangle = length × width

A = 4 × 2

= 8 square ft

4 0

3 years ago

The hands of a clock form the same angle at various times of the day. For example, the angle formed at 2:00 is congruent to the

Oliga [24]

It is 2 inches long this is because of the length of the hands .

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=3x%20-%202y%20%3D%2043x%20%2B%202y%20%3D%208" id="TexFormula1" title="3x - 2y = 43x + 2y = 8"

den301095 [7]

3x - 2y = 8 +

===》 46x = 16

43x + 2y = 8

x = 16/46

x = 8/23

______________________________

3x - 2y = 8

3(8/23) - 2y = 8

24/23 - 2y = 8

2y = 24/23 - 8

y = 12/23 - 4

y = 12/23 - 92/23

y = - 80/23

5 0

3 years ago

Find the perimeter of the pentagon MNPQR with vertices M(2, 4), N(5, 8), P(8, 4), Q(8, 1), and R(2, 1)

Gekata [30.6K]

Answer:

The pentagon MNPQR has a perimeter of 22 units.

Step-by-step explanation:

Geometrically speaking, the perimeter of the pentagon is the sum of the lengths of each side, that is:

$p = MN + NP + PQ + QR + RM$ (1)

$p = \sqrt{\overrightarrow{MN}\,\bullet \, \overrightarrow{MN}} + \sqrt{\overrightarrow{NP}\,\bullet \, \overrightarrow{NP}} + \sqrt{\overrightarrow{PQ}\,\bullet \, \overrightarrow{PQ}} + \sqrt{\overrightarrow{QR}\,\bullet \, \overrightarrow{QR}} + \sqrt{\overrightarrow{RM}\,\bullet \, \overrightarrow{RM}}$ (1b)

If we know that $M(x,y) = (2,4)$ , $N(x,y) = (5,8)$ , $P(x,y) = (8,4)$ , $Q(x,y) = (8,1)$ and $R(x,y) = (2,1)$ , then the perimeter of the pentagon MNPQR is:

$p =\sqrt{(5-2)^{2}+(8-4)^{2}} + \sqrt{(8-5)^{2}+(4-8)^{2}}+\sqrt{(8-8)^{2}+(1-4)^{2}}+\sqrt{(2-8)^{2}+(1-1)^{2}}+\sqrt{(2-2)^{2}+(4-1)^{2}}$ $p = \sqrt{3^{2}+4^{2}} + \sqrt{3^{2}+(-4)^{2}}+\sqrt{0^{2}+(-3)^{2}}+\sqrt{(-6)^{2}+0^{2}}+\sqrt{0^{2}+3^{2}}$

$p = 22$

The pentagon MNPQR has a perimeter of 22 units.

4 0

3 years ago

48. Line h passes through the point (4, 12) and is parallel to line k.

Misha Larkins [42]

Answer: y = 3/4 x + 8

Step-by-step explanation: First you must find the slope of line k.

y2 - y1

m = ----------- The slope is 3/4

x2 - x1

Since the two lines are paralell you know that line h has the same slope.

Next you must find the y-intercept by replacing x and y with the values given by the point.

y = 3/4x + ? -----> 12 = 3/4(4) + ?

12 = 3 + 8

The y-intercept is 8

Your equation for line h is y = 3/4 x +8

Hope this was helpful!

4 0

2 years ago