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3 years ago

If sound travels 2 miles and 10 seconds how far does sound travel in 2 minutes

Mathematics

1 answer:

AnnZ [28]3 years ago

3 0

Answer:

24 miles

Step-by-step explanation:

2 miles:10 seconds

? miles: 120 seconds

120 divided by 10 =12

12 x 2 =24

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"the sum of the digits of a two-digit number is 12. The difference of the digits is 2. find the number if the units digit is lar

Stells [14]

let the number be xy then

x + y = 12

y - x = 2 ( because y > x)

adding we get 2y = 14 so y = 7

and x = 12 - 7 = 5

So the number is 57.

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4 years ago

- 3/4 × 2/5 = <br>thats what I asked for<br>

Neporo4naja [7]

Answer:

-0.3

Step-by-step explanation:

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3 years ago

Question 3 (2 marks)

Sav [38]

Answer:

$3385 per week

Step-by-step explanation:

so, he gets $370 plus 4.5% of what he is selling.

$67000 = 100% of selling

1% = 100%/100 = 67000/100 = $670

4.5% = 1% × 4.5 = 670 × 4.5 = $3015

so, he gets $370 + $3015 = $3385 per week

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3 years ago

What’s the slope of -2,-3 and -4,-9

Dmitry_Shevchenko [17]

Answer:

m = 3

Step-by-step explanation:

Find the slope of the line connecting (-2,-3) and (-4,-9). (Note: you must use those parentheses.)

As we go from x= -4 to x = -2, an increase of 2, y increases by 6 from -9 to -3. The slope of this line is m = rise / run = 6/2 = 3.

6 0

3 years ago

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A caterpillar started at point (−2.5, −5.5) on a coordinate plane. She crawled in a straight line through the origin to point (4

alexgriva [62]

Answer:

The value of y is $99$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem the line passes through the origin

therefore

Is a proportional variation

Find the value of k

with the point $(-2.5,-5.5)$

$k=y/x=-5.5/-2.5=2.2$

The equation is equal to

$y=2.2x$

For $x=45$

substitute

$y=2.2(45)=99$

6 0

3 years ago

Read 2 more answers