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2 years ago

denise bought 5.2 pounds of rice for $5.29. using the unit rate, how much would 2 pounds of rice cost?

2 answers:

6 0

5.29/5.2=x/2
times both sides by (5.2)(2)
(2)(5.29)=5.2x
10.58=5.2x
divide both sides by 5.2
2.034=x
answer is $2.03 for 2lb rice

mixer [17]2 years ago

4 0

I think it will be $1.966 or about $2 if you rounded it up

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Assume that the city of Dallas is in the state of Texas. Which statement is definitely NOT true?

OverLord2011 [107]

I would need some choices to help you otherwise there's not much i can do to help.

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2 years ago

A gas storage tank is in the shape of a right circular cylinder that has a radius of the base of 2ft and a height of 3ft. The fa

bogdanovich [222]

Answer:

Yes, the farmer have enough paint to complete the job.

Step-by-step explanation:

It is given that a gas storage tank is in the shape of a right circular cylinder.

The radius of the base is 2 ft and the height of cylinder is 3 ft.

The total surface area of a cylinder is

$S=2\pi rh+2\pi r^2$

Total surface area of gas storage tank is

$S=2\pi (2)(3)+2\pi (2)^2$

$S=12\pi+8\pi$

$S=20\pi$

$S=62.8318530718$

$S\approx 62.83$

The total surface area of gas storage tank is 62.83 square feet.

The farmer has 1 gallon of paint and 1 gallon of paint will cover 162 square feet.

Since 62.83<162, therefore 1 gallon of paint is enough to paint the gas storage.

Hence the required statement is Yes, the farmer have enough paint to complete the job.

3 0

2 years ago

"Find an integer, x, such that 5, 10, and x represent the lengths of the sides of an acute triangle.

Contact [7]

A, b, c - the lengths of the sides of the triangle
and a ≤ b ≤ c
then:
a + b > c and if the triangle is an acute triangle then a² + b² > c².

$1^o\\5\leq10\leq x\\\\\left\{\begin{array}{ccc}5+10 \ \textgreater \ x\\5^2+10^2 \ \textgreater \ x^2\end{array}\right\to\left\{\begin{array}{ccc}x \ \textless \ 15\\ x^2 \ \textless \ 125\end{array}\right\to\left\{\begin{array}{ccc}x \ \textless \ 15\\ x \ \textless \ \sqrt{125}\approx11.1\end{array}\right\\\\\boxed{x=11}\\\\2^o\\5\leq x\leq10\\\\\left\{\begin{array}{ccc}5+x \ \textgreater \ 10\\ 5^2+x^2 \ \textgreater \ 10^2\end{array}\right\to\left\{\begin{array}{ccc}x \ \textgreater \ 5\\ x^2 \ \textgreater \ 75\end{array}\right\to\left\{\begin{array}{ccc}x \ \textgreater \ 5\\ x \ \textgreater \ \sqrt{75}\approx8.7\end{array}\right\\\boxed{x=9}$

$3^o\\x\leq5\leq10\\\\\left\{\begin{array}{ccc}x +5 \ \textgreater \ 10\\ x^2+5^2 \ \textgreater \ 10^2\end{array}\right\to\left\{\begin{array}{ccc}x \ \textgreater \ 5\\ x^2 \ \textgreater \ 75\end{array}\right\to\left\{\begin{array}{ccc}x \ \textgreater \ 5\\ x \ \textgreater \ \sqrt{75}\approx8.7\end{array}\right\\\boxed{x\in\O}\\\\Answer:\boxed{x=9\ or\ x=11}\to your\ answer:\boxed{\boxed{x=11}}$

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3 years ago

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Does the point (2, 9) satisfy the inequality y ≤ 3 x + 1 ?

Naily [24]

A point is written using the form (X,Y), so the first number is the X and the second number is the Y.

Replace x and Y in the given equation with the given point:

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9 ≤ 6 +1

9 ≤ 7

9 is not less than or equal to 7, so the point (2,9) does not satisfy the inequality.

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2 years ago

He formula for density is given by , where p is density, M is mass and V is volume. If a substance has a mass of 27.82 grams and

Vera_Pavlovna [14]

Answer:

p = [27.82] ÷ [3.6]

p = 7.727·

p = 7.728 (3dp)

The answer is B)

Step-by-step explanation:

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2 years ago

Read 2 more answers