All categories

4 years ago

Rewrite 2/20 : 1/40

Mathematics

1 answer:

BabaBlast [244]4 years ago

8 0

We can make the ratio better by converting the relationship into whole numbers.

2/20 : 1/40

Simplify first.

1/10:1/40

Multiply by 40.

answer: 4:1

You might be interested in

Round 308.61 to tenths?!

KatRina [158]

The answer is 308.6, assuming you mean round it to the tenths place of course. :) The first digit to the right of the decimal place in any number is the tenths place, but if the number directly to the right of that is above 5, you must round it up. In this case, because it is 308.61, you need to round it down to 308.6

Edited because for some reason I read it as 306.61 instead of 308.61.

8 0

3 years ago

Read 2 more answers

Line JK passes through points J(-4,-5) and K(-6,3). If the equation of the line is written in slope-intercept form, y-mx+b, what

Ksju [112]

$y=mx+b \\ \\
(x,y)=(-4,-5) \hbox{ and } (x,y)=(-6,3) \\ \Downarrow \\
-5=-4m+b \ \ \ \ \ \ \ \ \ \ \ \ \ \ | \times (-3) \\
3=-6m+b \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\times 2 \\ \\
15=12m-3b \\
\underline{6=-12m+2b} \\
21=-b \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\times (-1) \\
\boxed{b=-21}$

The value of b is -21.

4 0

4 years ago

Read 2 more answers

Hello! :)

lesya [120]

Answer: the triangles are congruent

Step-by-step explanation: if u add up all the angles u get 180 so all angles are congruent

5 0

3 years ago

A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second. After approximately 2.3

adell [148]

Answer:

15.5 meters

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A guidebook says this tower is 50m tall.Is that correct? given deegrees are 27° and 46°<br>

inysia [295]

9514 1404 393

Answer:

yes

Step-by-step explanation:

The tower is about 50.1 meters tall. The guidebook is correct.

The distance from the base of the tower to the angle vertex is ...

d1 = h/tan(46°)

d2 = d1 +50 = h/tan(27°)

Then the height of the tower is ...

h/tan(46°) +50 = h/tan(27°)

50 = h(cot(27°) - cot(46°))

h = 50/(cot(27°) -cot(46°)) ≈ 50/(1.96261 -0.96569) ≈ 50/0.99692

h ≈ 50.1544 . . . meters

The tower is more than 50 meters high.

4 0

3 years ago

Rewrite 2/20 : 1/40​

Rewrite 2/20 : 1/40