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3 years ago

8

Which ones are correct will give brainlist!!

1 answer:

Bas_tet [7]3 years ago

3 0

Answer:

A and C and E

Step-by-step explanation:

All these answers are true because the line is always constant, the slope is going down so therefore negative, and the equation is correct because you can fill in any value and they would be correct.

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It's number 15. I am having trouble on it.

Llana [10]

16.8 cm is divided into 4 segments (line-line..) with a letter (dot) inbetween. FG makes one segment since it goes from center to center.

16.8 cm / 4 segments = 4.2 cm

6 0

3 years ago

Toby goes on holiday to Geneva, Switzerland.

Vera_Pavlovna [14]

Answer:

Firstly, we have to transform CHF to $\£$ in order to work with the same currency and make the comparisson:

If $\£1=1.55CHF$

$193.75CHF\frac{\£1}{1.55CHF}$

Then:

$193.75CHF=\£125$

Now we can make the comparisons:

a) In Geneva the watch costs $193.75 CHF=\£125$ and in Manchester it costs $\£143$ .

According to this:

<h2>In Geneva the watch is cheaper</h2>

b) If we want to know by how much is cheaper, we have to substract from the expensive price the value of the cheaper price:

$\£143-\£125=\£18$

Therefore:

<h2>The watch in Geneva is $\£18$ cheaper than the same watch in Manchester.</h2>

8 0

3 years ago

The product of two number is 20 and the sum of square is 41 find the number

Marianna [84]

Let the two number is a and b

so,

product =ab=20

sum of square= $\bold{a^2+b^2=41 }$

Then,

$\bold{(a+b)^2=a^2+b^2+2ab }$

$\bold{ (a+b)^2=41+2×40 }$

$\bold{ (a+b)^2=81 }$

$\bold{a+b=\sqrt{81} }$

$\bold{a+b=9 }$ •••••••••(equation I)

Now,

$\bold{(a-b)^2=a^2+b^2-4ab }$

$\bold{ (a-b)^2=41-4×20 }$

$\bold{(a-b)^2=41-40 }$

$\bold{a-b=\sqrt{1} }$

$\bold{a-b=1 }$ ••••••••(equation II)

Now,combine the equation I and equation II

we,get

$\bold{a+b+a-b=9+1 }$

$\bold{a+\cancel{b}+a\cancel{-b}=10 }$

$\bold{ 2a=10 }$

$\bold{a=\dfrac{10}{2} }$

$\blue{\boxed{ a=5 }}$

Then,

put the value of a in equation II.

we get that,

$\bold{5-b=1 }$

$\bold{b+1=5 }$

$\bold{b=5-1 }$

$\bold{\boxed{\blue{b=4}} }$

<em><u>so</u></em><em><u>,</u></em><em><u> </u></em>

<em><u>The</u></em><em><u> </u></em><em><u>two</u></em><em><u> </u></em><em><u>number</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u> </u></em><em><u>5</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>4</u></em><em><u>.</u></em>

6 0

3 years ago

Read 2 more answers

What is 6.7% written as a decimal ?

MissTica

Answer:

0.067

Step-by-step explanation:

Divide any percentage by 100 to get the decimal form.

6.7÷100=0.067

4 0

3 years ago

Read 2 more answers

kenny6666 [7]

The inequality is given by 20x + 25y ≤ 1100 and x + y > 50

<h3>What is an inequality?</h3>

An inequality is an expression that shows the non equal comparison of two or more numbers and variables.

Let y represent the number of soccer balls and x represent the number of volleyballs.

The coach can spend a maximum of $1,100, hence:

20x + 25y ≤ 1100

Also, The coach plans to order at least 50, hence:

x + y > 50

The inequality is given by 20x + 25y ≤ 1100 and x + y > 50

Find out more on inequality at: brainly.com/question/24372553

6 0

3 years ago