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2 years ago

A student solve this problem and said the answer is 9 pounds.

Mathematics

2 answers:

lukranit [14]2 years ago

7 0

Ethan bought 9.9 pounds of meat (2.2+3.6+4.1) I would say this is reasonable.

kondaur [170]2 years ago

7 0

The student is wrong because if you do
2(1/5) + 3(3/5) + 4(1/10) it all equals up to 2.6

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Rhion sat maths and English test

Sauron [17]

Answer:

Rhion did better in maths test.

Step-by-step explanation:

Given that:

Rhion scored 14 out of 17.

We will find percentage and then compare them.

Percentage = $\frac{Score}{Total\ marks}*100$

Percentage = $\frac{14}{17}*100$

Percentage = 82.35%

Rhion scored 31 out of 39.

Percentage = $\frac{31}{39}*100$

Percentage = 79.48

On comparing,

82.35 > 79.48

Hence,

Rhion did better in maths test.

4 0

2 years ago

How do you graph proportionality?

Allushta [10]

Answer:

Constant of Proportionality Equation

The constant of proportionality (k) equals the total price (y) divided by the number of cans (x). The second formula is a common alternate form of the constant of proportionality formula.

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Susan has a 12-inch board for a wooden chair. the directions say to use a board that is 29 centimeters long . is her board long

Vlad [161]

Step-by-step explanation:

A 12-inch long board is basically a feet long

A feet consists of 30 centimeters which is 1 more than 29.

No! The board is not long enough

12 inch board is 30.48 centimeters

<h3><u><em>Please mark this as brainliest</em></u></h3><h3><u><em>hope this helps</em></u></h3><h3><u><em>Thank you</em></u></h3><h3><u><em>: )</em></u></h3>

6 0

2 years ago

Read 2 more answers

Make 'h' as the subject. Remember to rationalize the denominator while solving.

Sliva [168]

Hello there BeGuiLE !

To solve your question, we must first bring 'h' to one side of the equation. Let's bring all the terms with the variable 'h' to the left side of the equation. So,
$\large{\sf\sqrt{ 3 } h = 1.6+h}$
→ $\large{\sf\sqrt{3}h-h=1.6 }$

Now, let's combine the 2 terms containing the variable 'h'.
$\large{\sf\sqrt{3}h-h=1.6 }$
→ $\large{\sf\left(\sqrt{3}-1\right)h=1.6 }$

Now, we need to leave the variable 'h' alone in the left side of the equation & bring (√3 + 1) to the other side of the equation. This is done in order to make 'h' as the subject of the equation. So, we'll get it as,
$\large{\sf\left(\sqrt{3}-1\right)h=1.6 }$
→ $\large{\sf\:h=\frac{1.6}{\sqrt{3}-1} }$

Now, let's rationalize it. Rationalizing is a process where we move the root from the denominator of a fraction to the numerator for easier calculation. So,
$\large{\sf\:h=\frac{1.6}{\sqrt{3}-1} }$
→ $\large{\sf\:h=\frac{1.6(\sqrt{3}+1)}{(\sqrt{3}-1 )(\sqrt{3}+1}) }$
Now, use the algebraic identity, (a + b)(a - b) = a² - b²
→ $\large{\sf\:h=\frac{1.6(\sqrt{3}+1)}{3-1} }$
→ $\large{\sf\:h=\frac{1.6(\sqrt{3}+1)}{2} }$
→ $\boxed{\large{\sf\:h=0.8(\sqrt{3}+1)}}$

Now, we've made 'h' as the subject of the equation. If you want to solve it more, then,
$\large{\sf\:h=0.8(\sqrt{3}+1)}$
Take √3 as 1.73 (approx. value up to 2 decimal places)
→ $\large{\sf\:h=0.8(1.73+1)}$
→ $\large{\sf\:h=0.8(2.73)}$
→ $\boxed{\boxed{\huge{\bf{\:h=2.184 \: (approx.)}}}}$

I hope this will help you.