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3 years ago

Find x, round your answer to the nearest tenth. Please help.

Mathematics

1 answer:

Sever21 [200]3 years ago

3 0

So 25 is 30 and 48 is 50 because you round to the nearest tenth

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Find the product and explain the process and reasoning.<br><br><br>$0.7×3.7=?

finlep [7]

2.59 that’s the correct answer

4 0

3 years ago

The table shows the distance Allison drove on one day of her vacation. Is the relationship between the distance and the time a p

Anuta_ua [19.1K]

Answer:

we conclude that the relationship between distance and time is NOT proportional.

Hence, she did not drive at a constant speed.

Step-by-step explanation:

We know that when 'y' varies directly with 'x', we get the equation

y ∝ x

y = kx

k = y/x

where 'k' is called the constant of proportionality.

In our case, the table shows the distance Allison drove on one day of her vacation.

Time (h) 1 2 3 4 5

Distance (mi) 55 100 165 280 250

using the equation

k = y/x

susbtitute y = 55, x = 1

k = 55/1 = 55

substitute y = 100, x = 2

k = y/x

k = 100 / 2 = 50

substitute y = 165, x = 3

k = y/x

k = 165 / 3 = 55

substitute y = 280, x = 4

k = y/x

k = 280 / 4 = 70

substitute y = 250, x = 5

k = y/x

k = 250 / 5 = 50

It is clear that the value of 'k' does not remain constant.

Therefore, we conclude that the relationship between distance and time is NOT proportional.

Hence, she did not drive at a constant speed.

6 0

3 years ago

Which of the following absolute value equations has no solutions?Group of answer choices

Amiraneli [1.4K]

The absolute value measures the distance a number is away from the origin (zero) on the number line. A number can be to the left or right of zero on the number line, but the distance away from zero is always positive. Graphically:

In other words:

• If d is positive and

$\begin{gathered} |x|=d \\ \text{ then} \\ x=d\text{ or }x=-d \end{gathered}$

• If d is negative and

$\begin{gathered} |x|=-d \\ \text{then} \\ \text{ No solution, because distance (d) can not be negative.} \end{gathered}$

Therefore, the equation that has no solutions is:

$\boldsymbol{|x|=-3}$

3 0

1 year ago

What's 27-18r using distributive property

solniwko [45]

The distributive property: a(b - c) = ab - ac

27 - 18r = 9·3 - 9·2r = 9(3 - 2r)

8 0

3 years ago

See the pic below please! AND SHOW WORK!

irinina [24]

Well I don't know !
Let's check out the choices:

A). 3a - 4b = 21, a=0, b=7

   3(0) - 4(7) = 21

   0 - 28 = 21 Nope. That's not true.

B). 3a - 4b = 21, a=-3, b=2

   3(-3) - 4(-2) = 21

   -9 + 8 = 21

   -1 = 21 Nope. That's not right.

C). 3a - 4b = 21, a=-2, b=-3

      3(-2) - 4(-3) = 21

   -6 + 12 = 21

   6 = 21 Nope. That's not it.

Only one choice left.
This one had better be it:

D). 3a - 4b = 21, a=7, b=0

   3(7) - 4(0) = 21

   21 - 0 = 21

   21 = 21 Yay ! That's it !

7 0

3 years ago

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