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4 years ago

A ratio compares two values using which operation?

Mathematics

2 answers:

katrin [286]4 years ago

3 0

Ratios use division to compare two or more values

Vikentia [17]4 years ago

3 0

Answer: D: Division

Hope This Helps ^_^

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Peyton is a sprinter who can run the 40-yard dash in 4.5 seconds. He converts his speed into miles per hour, as shown below. Whi

rodikova [14]

This question is incomplete

Complete Question

Peyton is a sprinter who can run the 40-yard dash in 4.5 seconds. He converts his speed into miles per hour, as shown below.

Which ratio is incorrectly written?

40 yd/4.5 sec • 3 ft/1 yd • 5280ft/1 mile • 60 sec/1 min • 60 min/1 hr

Answer:

5280ft/1 mile is the incorrect ratio

Hence, 40-yard dash in 4.5 seconds = 18.2 miles per hour(mile/hr)

Step-by-step explanation:

We are to convert 40 yards per 45 seconds to Mile per hour.

We are given the following conversion ratios:

40 yd/4.5 sec • 3 ft/1 yd • 5280ft/1 mile • 60 sec/1 min • 60 min/1 hr

The incorrect ratio is 5280ft/1 mile .

It should have been written as 1 mile/5280 ft.

Hence,

40 yd/4.5 sec • 3 ft/1 yd • 1 mile/5280ft• 60 sec/1 min • 60 min/1 hr

= 432000mile/23700 hr

= 18.181818182 mile/hr

Approximately= 18.2mile/hr

5 0

3 years ago

What is the quotient of 8,187 ÷ 24?

adell [148]

Answer:

341.125

Step-by-step explanation:

8187/24

341.125

7 0

3 years ago

The Vertex of a parabola is at (8-1), and it's why intercept is negative 17, which function represents the parabola

suter [353]

Answer:

The function is equal to $y=-(1/4)(x-8)^{2}-1$

Step-by-step explanation:

we know that

The equation of a vertical parabola in vertex form is equal to

$y=a(x-h)^{2}+k$

where

a is a coefficient

(h,k) is the vertex

In this problem we have

(h,k)=(8,-1)

substitute

$y=a(x-8)^{2}-1$

<u><em>Find the value of a</em></u>

Remember that we have the y-intercept

The y-intercept is the point (0,-17)

substitute

x=0,y=-17

$-17=a(0-8)^{2}-1$

$-17=64a-1$

$64a=-17+1$

$64a=-16$

$a=-16/64$

$a=-1/4$

therefore

The function is equal to

$y=-(1/4)(x-8)^{2}-1$

see the attached figure to better understand the problem

4 0

4 years ago

An arts academy requires there to be 5 teachers for every 115 students and 3 tutors for every . How many students does the acade

dexar [7]

Answer:

1.23

2. Question incomplete

3. Needs Question 2 to Answer

Step-by-step explanation:

1. 115÷5=23

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3 years ago

Nolan and Tyler both plan to run for a spot on the school board in their city. They must each collect a certain number of signat

ValentinkaMS [17]

Answer:

Step-by-step explanation:

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3 years ago