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r-ruslan [8.4K]

4 years ago

5

The number of students in a math club decreased from 15 to 11. What is the percent decrease? Round to the nearest percent.

1 answer:

Alinara [238K]4 years ago

4 0

Answer:

27%

Step-by-step explanation:

Decrease= 15-11

=4

Percentage=4÷15

=0.266666667

=26.667%

~27%

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WILL GIVE BRAINLIEST

puteri [66]

Step-by-step explanation:

${EF}^{2} = {EG}^{2} - {FG}^{2} \\ \\ = {8}^{2} - {6}^{2} \\ \\ = 64 - 36 \\ \\ = 28 \\ \\ \therefore \: {EF} = \sqrt{28} \\ \\ \therefore \: {EF} = 2\sqrt{7} \\ \\ \sin \: E = \frac{FG }{EG} = \frac{6}{8} = \frac{3}{4} \\ \\ \huge\red {\boxed{\therefore \: \sin \: E = \frac{3}{4}} } \\\sec \: G = \frac{ EG}{FG} = \frac{8}{6} = \frac{4}{3} \\ \\ \huge\purple {\boxed{ \therefore \: \sec \: G = \frac{4}{3}}} \\\\\cot \: G = \frac{ FG}{EF} = \frac{6}{2\sqrt 7} = \frac{3}{\sqrt 7} \\ \\ = \frac{3\times\sqrt 7 }{\sqrt 7\times\sqrt 7 } \\ \\ = \frac{3\sqrt 7 }{ 7 } \\ \\ \huge\orange {\boxed{ \therefore \: \cot \: G = \frac{3\sqrt 7 }{ 7 } }} \\\\$

6 0

3 years ago

How would you do this?

Bess [88]

It would be 6.0x4 because the square is 6.0 on each side

6 0

3 years ago

Read 2 more answers

Anyone know how to do it

Morgarella [4.7K]

Answer:

Surface area of cube = 6x²

surface area of cube = surface area of sphere

it means that 6x²=4πr²

x²=

$\frac{4\pi {r}^{2} }{6} = \frac{4 \pi9}{6} = \frac{4\pi3}{2} = 6\pi$

$x = \sqrt{6\pi}$

$\sqrt{6\pi} = \sqrt{k\pi}$

$6\pi = \pi \: k$

$k = 6$

4 0

2 years ago

A man spends 2/5 of his salary on food, 3/10 on his rent and 1/8 on other expenses. What fraction of his salary is still left wi

tino4ka555 [31]

Answer:

$\frac{7}{40}$

Step-by-step explanation:

$1-(\frac{2}{5}+\frac{3}{10}+\frac{1}{8})$

$1-\frac{33}{40}$

$\frac{7}{40}=0.175$

6 0

3 years ago

Read 2 more answers

Mitch used 1 4 pounds of beef to make 3 4 liters of beef strogonoff. If Mitch's recipe is for 1 liter of beef strogonoff, how ma

iren [92.7K]

option B) 3 pounds of beef is needed to make 6 times the recipe.

<u>Step-by-step explanation</u>:

<u>step 1 </u>:

Mitch used 14 pounds of beef = 34 liters of beef strogonoff

'x' pounds of beef = 1 liter of beef strogonoff

<u>step 2</u> :

Rate = No. of pounds / No. of liters

(14 pounds / 34 liters) = (x pounds / 1 liter)

x = 14/34

x = 0.412

1 liter of beef strogonoff = 0.412 pounds of beef

<u>step 3</u> :

To make 6 times the recipe = 6 $\times$ 0.412

= 2.5 pounds of beef ( approximately 3 pounds)

5 0

3 years ago