MATHEMATICS MIDDLE SCHOOL

Don't need the answer, just how you would solve this:Tobin rows 2 miles per hour faster than her opponent. If it takes Tobin 30 minutes to finish a race, and it takes her opponent 45 minutes to finish the same race, how fast does Tobin row?
(A) 4 mph
(B) 5 mph
(C) 6 mph
(D) 30 mph

Answers

Answer 1
Answer:

Answer:

(C) 6 mph

Step-by-step explanation:

Given,

The time taken by Tobin = 30 minutes,

While, the time taken by her opponent = 45 minutes,

So, the ratio of the time taken by tobin and her opponent = 30 : 45

\because speed\propto (1)/(time)

Thus, the ratio of speed of tobin and her opponent = (1)/(30):(1)/(45)

= 45 : 30

= 3 : 2

Suppose speed of tobin = 3x and speed of opponent = 2x

Where, x is positive real number,

Difference in speed = 3x - 2x = x

According to the question,

x = 2 miles per hour,

Hence, the speed of Tobin = 3x = 6 miles per hour.

Option (C) is correct
Answer 2
Answer: d = x * 45                   opponent
d = ( x + 2) *30           Tobin
x * 45 = ( x + 2) *30 
x* 15 = 60
x = 4
x + 2 = 6 mph

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44 is 11% of what number?

Answers

Answer:

400

Step-by-step explanation:

44/11% =400

Value 1 divided by the percentage gives you value 2 which is your answer. Hope it helped

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Answers

The slope of a line characterizes the direction of a line. The find he slope, you divide the difference of the y coordinates of 2 points on a line by the difference of the x coordinates of those same 2 points

Answer:

the slope of the line represents the dna of a function. the Y axis uses the information to identify its own location based off of x's location

What is the area of the triangle?A = (bh)/(2)

A. 54 cm^2
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D. 216 cm^2

Answers

Answer:

A = 54cm^2

Step-by-step explanation:

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Help! I need this for tm5/3/16I need help on number eight...please help me,I don't understand

Answers

See attached diagram.

In the first example:
Ratio of sides is 2/1
Ratio of perimeters is 2/1
Ratio of areas is 4/1

In the second example:
Ratio of sides is 3/1
Ratio of perimeters is 3/1
Ratio of areas is 9/1

We can derive these formulas:
Ratio of sides is a/b
Ratio of perimeters is a/b
Ratio of areas is (a/b)²

For #7, just draw the first example's diagram.
You may not need to label all the sides, though.

Which numbers belong to the range of the relation {(–2, 0), (1, 3), (–2, 3), (1, 0)}?Choose all answers that are correct.



A.


–2


B.


0


C.


1


D.


3

Answers

Range is the y value in the ordered pair.

So the y coordinates in the ordered pairs would be 0 and 3.

Answer: B and D

Are 4/16 equivalent to 0.25

Answers

0.25= 25/100

25/100 = 5/20= 1/4

4/16 = 1/4

It is equivalent

Hope I helped! (Pick me as brainliest!)
Well lets see first lets simplify the equation the 4/16 = 2/8 and 2/8 = 1/4 if we put this fraction into the decmil form it is 0.25. If you have more questions like these with numbers going into 100 what i mean is if you have 1/2 make put the demonanator into 100 so you can make that a decmil too it will be easier In all IT IS EQUIVLENT :-) hope this helped
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