If snow is falling at a rate of 1/4 inch every 30 minutes, how much snow will fall in 4 1/2 hours.

Answers

Answer 1

Answer: $30min=0.5h\n\n(1)/(4)inch=0.25inch\n\n4(1)/(2)h=4.5h$

$0.25inch\ -\ 0.5h\n\n2\cdot0.25inch\ -\ 2\cdot0.5h\to0.5inch\ -\ 1h\n\n\n0.5inch\ -\ 1h\n0.5inch\ -\ 1h\n0.5inch\ -\ 1h\n0.5inch\ -\ 1h\n0.25inch\ -0.5h\n------------+\n2.25inch\ -\ 4.5h$

Answer 2

Answer: The answer is 2 1/4 inch or 2.25 inch per 4 1/2 hours

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Use a= √a b= √5 c= √10 to work out the value of ac/b
Give your answer in its simplest form.

Answers

Answer:

a = √a b = √5 c = √10

ac/b = (√a)(√10)/√5

= √ 10 × a /√5

= √10a / √5

Rationalize the surd

√10a ×√5/(√5)²

= √50a /5

= 5√2a/ 5

= √2a

The final answer is √2a

Hope this helps

Final answer:

You need to substitute the given values into the ac/b equation. After substitization and simplification, the equation ac/b simplifies to √2.

Explanation:

The equation that we need to evaluate is ac/b, using the variables a, b, and c given in the question. So, substituting the given values, we get:

a * c / b = √a * √10 / √5

Since a is equal to √a, we can replace a with √a in the equation, so it then becomes:

√a * √10 / √5 = √(a*10) / √5

Since a is √a, a*10 is therefore √10, so the equation becomes:

√10 / √5

That simplifies to √2 in its simplest form.

Learn more about Square Roots here:

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108 is 36% of what number? Write and solve a proportion to solve the problem

Answers

We set up a proportion: 108/?= 36/100

Cross multiply: 36*?= 108*100
⇒ ?= 108*100/36= 300

108 is 36% of 300.

Simplify 2(5x-3)-(2x+4), 24x-12y+40÷4, (2x)(3y)+2(-xy)

Answers

$2(5x-3)-(2x+4)=2\cdot5x-2\cdot3-2x-4\n\n=10x-6-2x-4=8x-10\n\n\n(24x-12y+40):4=24x:4-12y:4+40:4\n\n=6x-3y+10\n\n\n(2x)(3y)+2(-xy)=6xy-2xy=4xy$

Find the inverse of the one to one function. f(x)=2x+5/7

Answers

$f(x)=(2x+5)/(7)\n\n y=(2x+5)/(7)\n 7y=2x+5\n 2x=7y-5\n x=(7y-5)/(2)\n \boxed{f^(-1)(x)=(7x-5)/(2)}$

You grab two jelly beans from a jar at the same time. b you draw a card from a deck, replace it, and draw a second. c you draw a card and do not replace it. then you draw another. d you study english every night, and then you get an a on the next test.

Answers

How is this a question did you re word it

Translate question into an equation, let x be unknown number 6.4 is 90% of what number?

Answers

$1 \% = (1)/(100)\n \n90 \% * x =6.4 \n \n(90)/(100)x=6.4 \n \n(9 )/(10 )x=6.4 \ \ *((10)/(9))\n \nx= 6.4 *(10)/(9)\n \nx=(64)/(9)\n \nx = 7(1)/(9)$

6.4 = 90% x X
X =?
Happy to Help!

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