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3 years ago

In Australia, road distance is measured in kilometres.

Mathematics

2 answers:

vampirchik [111]3 years ago

8 0

Answer:

Step-by-step explanation:

since 5 miles is the same as 8 kilometers,how many miles is 120 kilometers..use ratio and proportion

5miles:8kilometers

x. :120kilometers

8x/8=600/8

x=75miles

I hope this helps

maks197457 [2]3 years ago

3 0

Answer:

Step-by-step explanation:

5 miles-8km

x miles-120 km

x=120×5÷8

x=75 (miles)

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Stuck on this problem.. Help needed! (will mark as brainliest)

vazorg [7]

Answer: 14.8
Explanation: You’re trying to find the hypotenuse using the two legs that you have. The formula to find hypotenuse is a^2+b^2=c^2. You are trying to find c^2. So it would be 10^2+11^2=c^2. 10^2 is 100 and 11^2 is 121 and 100+121 is 221. Then you would square root 221 and get 14.8 for the hypotenuse.

3 0

3 years ago

Which expression is not equivalent to the other three? 2x 2 2x 3x – 8 4 7x – 2 –2 5x 2x – 4 8x – x – 6.

erik [133]

The expression is not equivalent to $\rm 28x-16$ .

<h2>Polynomial</h2>

An expression of more than two algebraic terms, basically sums of terms and variables of power n.

<h2>Given</h2>

$2x+2 ,\ 2x,\ 3x-8, 4,\ 7x-2,\ -2,\ 5x,\ 2x-4,\ 8x,\ -x-6$

<h2>Step by step explanation</h2>

$\rm Equivalent\ expression = add\ all\ the\ given\ terms.\\
Equivalent\ expression = 2x+2+2x+3x-8+4+7x-2-2+5x+2x-4+8x-x-6\\
Equivalent\ expression = 2x+2x+3x+7x+5x+2x+8x-x+2-8+4-2-2-4-6\\
Equivalent\ expression = 28x-16\\
$

Then the expression is not equivalent to $\rm 28x-16$ .

Thus, the expression is not equivalent to $\rm 28x-16$ .

More about the polynomial link is given below.

brainly.com/question/17822016

7 0

3 years ago

4. If the sides of a square measure 9V3 units, then find the length of the diagonal.

Nitella [24]

Answer:

Step-by-step explanation:

To find the diagonal, use Pythagorean theorem,

diagonal² = side² + side²

= (9√3)² + (9√3)²

= 9²(√3)² + 9²(√3)²

= 81*3 + 81*3

= 243 + 243

= 486

diagonal = √486 = 22.05 units

7 0

3 years ago

For A Free 50 Points... Tell me how to give an answer the "Brainliest Answer" Thingy... Also the person who answers with how to

KatRina [158]

Answer:

ok so when a person answers a question and then theres two people who answered it a little crown will appear at the top and you can decide if you want to mark them brainliest for the answer, Brainliest means when you think or decide that it is the best answer theoretically.

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

The playground of a school has areas fixed for various activities. One-fifth of the playground is used for students to sit and r

sertanlavr [38]

Answer:

2/3* 4/5 = 8/15

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one. Please have a look at the attached file below.

Given:

One-fifth (1/5) of the playground is used for students to sit and read
2/3 is used for playing soccer
The rest of the playground is used for playing basketball

So assume that the the playground is divided into 5 equal part

=> 1 part is used for students to sit and read or (1/5)

=> the remaining equal part is 4 or (4/5)

Because 2/3 of the remaining part is used for playing soccer

=> the equation represents the part of the playground used for soccer is:

2/3 of 4/5

= 2/3* 4/5

= 8/15

8 0

3 years ago