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3 years ago

I can’t figure this stuff out

Mathematics

1 answer:

Vladimir79 [104]3 years ago

6 0

Answer:

$3\sqrt{85}$ = EC

Step-by-step explanation:

21² + 18² = EC²

441 + 324 = EC²

765 = EC²

$\sqrt{765}$ = EC

Simplified: $3\sqrt{85}$ = EC

Hope this helps!

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861 ÷3 show work for this problem please

TEA [102]

861 divided by 3:

How many times does 3 go into 8? 2 x 3 = 6
Subtract 6 from 8 to get a remainder of 2, and bring down 6 to get 26.

How many times does 3 go into 26? 8 x 3 = 24
Subtract 24 from 26 to get a remainder of 2, and bring down 1 to get 21.

How many times does 3 go into 21? EXACTLY 7 times. 7 x 3 = 21

Collect all numbers in bold to get…. 287!

Therefore, 861 divided by 3 = 287.

3 0

3 years ago

Sarah Liskow was the top scorer in a women's professional basketball league for the 2006 regular season, with a total of 810 p

weeeeeb [17]

Answer:

150 one point throws, 165 two points throws and 110 three points throws

Step-by-step explanation:

Let x be the number of free (one point) throws.

The number of free throws Sarah made was 15 less than the number of two-point field goals she made. If y is the number of two points throws, then

$x=y-15$

so the number of two points throws $=x+15$

The number of two-point field goals that Sarah made was 55 less than double the number of three-point field goals she made. If z is the number of three points throws, then

$y=2z-55\\ \\2z=y+55\\ \\2z=x+15+55\\ \\2z=x+70\\ \\z=\dfrac{1}{2}x+35$

so the number of three points throws $=\dfrac{1}{2}x+35$

The total score is 810 points, so

$x\cdot 1+(x+15)\cdot 2+\left(\dfrac{1}{2}x+35\right)\cdot 3=810\\ \\x+2x+30+1.5x+105=810\\ \\4.5x=810-30-105\\ \\4.5x=675\\ \\x=150\\ \\x+15=150+15=165\\ \\\dfrac{1}{2}x+35=\dfrac{1}{2}\cdot 150+35=75+35=110$

4 0

4 years ago

Add 2/5, 3/10 and 1/2. Give your answer as a mixed number

Alborosie

Answer:

I hope this will help you

3 0

3 years ago

I REALLY NEED HELP

Ede4ka [16]

There are 60 minutes in one hour, thus, 45 miles per hour is 45 miles per 60 minutes, thus

$\bf \begin{array}{ccll}
miles&minutes\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
45&60\\
240&m
\end{array}\implies \cfrac{45}{240}=\cfrac{60}{m}\implies m=\cfrac{240\cdot 60}{45}$

8 0

3 years ago

A muffin recipe calls for 4cups of flour and 8oz of milk if the recipe is increased to use 10 cups of flour how much milk is nee

Alinara [238K]

The answer is 20 because 4x2 is your 8 oz so 10x2 will give you 20oz

4 0

3 years ago