All categories

3 years ago

Sarah scored 68 out of 80 in a test.Write her score as a simplified fraction

Mathematics

1 answer:

attashe74 [19]3 years ago

5 0

$\frac{68}{80} \\ \\ \frac{(4)17}{(4)20} \\ \\ \boxed{ \frac{17}{20}}$

You might be interested in

frutty [35]

Answer:

okay i will answer but i dont see the question

Step-by-step explanation:

7 0

3 years ago

Brainliest for whoever gets this right!

My name is Ann [436]

Answer:

$x=\frac{(a^2+ab)}{a-b}$

Step-by-step explanation:

So we want to make x the subject of the formula:

$a(x-b)=a^2+bx$

First, distribute the left side:

$a(x)-a(b)=a^2+bx\\ax-ab=a^2+bx$

Combine all the terms with x with it on one side. To do this, first subtract bx from both sides. The right side cancels:

$(ax-ab)-bx=(a^2+bx)-bx\\ax-ab-bx=a^2$

Remove the -ab from the left. Add ab to both sides. The left side cancels:

$(ax-ab-bx)+ab=a^2+ab\\ax-bx=a^2+ab$

Now, distribute out the x from the left side:

$ax-bx=a^2+ab\\x(a-b)=a^2+ab$

Divide both sides by (a-b). The left side cancels:

$\frac{(x(a-b))}{a-b}=\frac{(a^2+ab)}{a-b} \\x=\frac{(a^2+ab)}{a-b}$

Therefore:

$x=\frac{(a^2+ab)}{a-b}$

5 0

3 years ago

Read 2 more answers

Please Help, This is a mathematical question, which I'm confused on.

Goryan [66]

T would be 72 because 2x2=4 and 4x18=72

4 0

3 years ago

Read 2 more answers

Please help first answer will be marked brainiest

Tresset [83]

Answer:

Step-by-step explanation:

add sides up

5 0

3 years ago

Find the radius of the circle below. Round your answer to the nearest tenth.

Butoxors [25]

Answer:

5.8 cm

Step-by-step explanation:

Area of the shaded sector of the circle = 31.2 cm²

Angle (θ) of the minor sector = 360 - 256 = 104°

Are of sector of a circle is given as, θ/360*πr²

Therefore:

$\frac{104}{360}*3.142*r^2 = 31.2$

$0.29*3.142*r^2 = 31.2$

$0.91*r^2 = 31.2$

Divide both sides by 0.91

$\frac{0.91*r^2}{0.91} = \frac{31.2}{0.91}$

$r^2 = \frac{31.2}{0.91}$

$r^2 = 34.286$

$r = \sqrt{34.286}$

$r = 5.8$ (nearest tenth)

6 0

3 years ago