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dalvyx
1 month ago
12

Mario walked at a rate of 2/3 miles every 10 minutes what is his unit rate every mile per hour

Mathematics
1 answer:
AnnZ [12.3K]1 month ago
5 0

Mario has a unit rate of 900 miles/hour.

Explanation:

It is given that Mario travels at a rate of 2/3 miles every 10 minutes.

We use the relation between speed, time, and distance, described by

\text{Speed}= \frac{\text{Distance}}{\text{Time}}

We have,

Distance = \frac{2}{3} \text{ miles}

Time = 10 minutes

By substituting these values into the preceding formula, we get

\text{Speed} = \frac{2/3}{10}\\\\ \text{Speed} =\frac{2}{10\cdot 3}\\\\ \text{Speed} =[tex]\frac{1}{15} \text{ miles/min}[/tex]

To express the unit rate in miles per hour, we must multiply by 60.

Thus, the resulting unit rate is

\frac{1}{15} \times 60\\ = 4 \text{ miles/hour}

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The co-payment for his doctor visits totals:

10 x 18 = $180.

For his physical therapy sessions, the co-payment amounts to:

10 x 20% x 150 = $300.

When you sum both co-payments, it totals $480.

8 0
2 months ago
5x−4≥12 OR 12x+5≤−4 please answer asap and right and explain like im 5 how to solve OR problems ill give brainliest and a lot of
Zina [12379]

Answer: x ≥ 3.2 OR x ≤ -0.75

Here's how to solve the compound inequality step-by-step: start by separating it into two inequalities. For the first one, 5x - 4 ≥ 12, add 4 to both sides to remove the constant, leaving 5x ≥ 16. Then divide both sides by 5 to isolate x, resulting in x ≥ 3.2.

Now for the second part, 12x + 5 ≤ -4, subtract 5 from both sides to obtain 12x ≤ -9. Dividing both sides by 12 gives x ≤ -9/12, which simplifies to x ≤ -0.75. So, combining both, the solution is x ≥ 3.2 OR x ≤ -0.75.

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3 months ago
Tiffany is solving an equation where both sides are quadratic expressions. She sets each quadratic equation equal to y and graph
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Answer:

Step-by-step explanation:

The graph can take on three forms as displayed in the figure.

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(b) having a single point of intersection (tangency)

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Consequently, the maximum number of intersections that these graphs can yield is 2, as illustrated in figure (c).

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1 month ago
Read 2 more answers
The profit function P(x), revenue function, R(x), and cost function, C(x), are related by the equation P(x) = R(x) – C(x). Andre
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2 months ago
Find the dimensions of the closed rectangular box with maximum volume that can be inscribed in the unit sphere.
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Answer:

Wyjaśnienie krok po kroku:

Załóżmy, że prostokąt ma wierzchołki (x,y,z) w dodatnim oktancie.  Prostokątny pudełko musi być symetryczne względem wszystkich trzech osi.

Wtedy jego boki to

2x,2y,2z

Objętość = 8xyz

Maksymalizuj objętość przy założeniu

x^2+y^2+z^2 =1

tj. g(x,y,z) = x^2+y^2+z^2 -1=0

Użyj mnożników Lagrange'a, mamy

∇f(x,y,z)=λ∇g(x,y,z)przy maksimum

∇f(x,y,z)=λ∇g(x,y,z) =(8yz,8xz,8xy)\\∇g(x,y,z)=(2x,2y,2z)

8yz=2λx8xz=2λy8xy=2λz

Dzieląc otrzymujemy

\frac{y}{x} =\frac{x}{y} \\x^2=y^2

Podobnie y^2=z^2

Zatem otrzymujemy 3x^2 =1\\x = \frac{1}{\sqrt{3} }

Stąd wymiary to

(2x,2y,2z)

<pzatem wymiary="" to="">

\frac{2}{\sqrt{3} },\frac{2}{\sqrt{3} },\frac{2}{\sqrt{3} } )

</pzatem>
3 0
2 months ago
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