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olga55 [171]
2 years ago
5

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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Simplify (square root 2)( square root of 2^3)
steposvetlana [31]

Answer:

\large\boxed{(\sqrt2)(\sqrt{2^3})=4}

Step-by-step explanation:

(\sqrt2)(\sqrt{2^3})\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\=\sqrt{2\cdot2^3}\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=\sqrt{2^{1+3}}=\sqrt{2^4}\\\\(1)=\sqrt{2^{2\cdot2}}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\=\sqrt{(2^2)^2}\qquad\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=2^2=4\\\\(2)=\sqrt{2\cdot2\cdot2\cdot2}=\sqrt{16}=6\ \text{because}\ 4^2=16

8 0
3 years ago
Will 5x-3y>15 have a solid line
marysya [2.9K]

Answer:

The inequality 5x-3y >15 have a dashed line

Step-by-step explanation:

we have

5x-3y >15

The solution of this inequality is the shaded area below the dashed line

The equation of the dashed line is 5x-3y=15

The slope of the dashed line is positive

The y-intercept of the dashed line is -5 ---> point (0,-5)

The x-intercept of the dashed line is x=3 ----> point (3,0)

Graph the solution

see the attached figure

6 0
3 years ago
A VERTICAL POLE OF CAST A SHADOW OF 4.5m LONG AT THE SAME TIME A TREE OF HEIGHT 24m LONG CAST A SHADOW OF 6m LONG. FIND THE HEIG
allsm [11]

Answer:

18 metres

Step-by-step explanation:

4.5/6 = x/24

¾= x/24

x = 18 m

6 0
3 years ago
In a survey of 3,300 people who owned a certain type of car, 660 said they would buy that type of car again. What percent of the
Stolb23 [73]

Answer:

20%

Step-by-step explanation:

660:3300*100 =

(660*100):3300 =

66000:3300 = 20

8 0
3 years ago
Please help! It’s my maths work
SashulF [63]
Plug into calculator
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