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2 years ago

Four friends

Mathematics

1 answer:

NikAS [45]2 years ago

5 0

Answer:

Ned and Penny

Step-by-step explanation:

Ned: $\frac{1}{3}$

Penny: $\frac{4}{12}$ --> simplying it makes it $\frac{1}{3}$

Hence, Ned and Penny ate the same amount of pizza.

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If 8=10 and 1=7,which describes all the lines that must be parallel?

agasfer [191]

Answer:

Step-by-step explanation:

For the above statement to hold we must have two sets of parallel lines; that is:

r and s , and then t and u.

These lines form corresponding and alternate angles.

6 0

2 years ago

Manuel bought a balloon (that is a perfect sphere) with a radius of 2 \text{ cm}2 cm2, start text, space, c, m, end text. He wan

mote1985 [20]

Answer:

<h2>The required ratio is 8</h2>

Step-by-step explanation:

Volume of a sphere = $\frac{4}{3}\pi r^{3}$ where r is the radius of the sphere.

If manuel bought a balloon (that is a perfect sphere) with a radius of 2cm, the original volume of the sphere is expressed as;

Vo = $\frac{4}{3}\pi (2)^{3}$

$Vo = \frac{4}{3}\pi *8\\Vo = \frac{32 \pi}{3}$

If he wanted his balloon to be bigger and he blew 2 big breaths of air into the balloon, if each big breath increased the balloon's radius by 1cm, the total radius will be the initial radius of the sphere plus the new radius after expansion.

radius of current sphere = 2cm+(1cm+1cm) = 4cm

Volume of the current sphere Vc = $\frac{4}{3}\pi (4)^{3}$

$Vc = \frac{4}{3}\pi *64\\Vc = \frac{256 \pi}{3} \\$

The ratio of the current volume of the balloon Vc to the original volume of the balloon Vo will be expressed as;

Vc/Vo = $\frac{\frac{256\pi}{3} }{\frac{32\pi}{3} }$

$\frac{Vc}{Vo}=\frac{256\pi}{3}*\frac{3}{32\pi} \\\frac{Vc}{Vo}=\frac{256}{32}\\\frac{Vc}{Vo}= 8$

The required ratio is 8

3 0

2 years ago

V-3 -5 - 315<br> O True<br> O False

xxMikexx [17]

Answer:

True

Step-by-step explanation:

Why true I had that problem and it was true.

7 0

3 years ago

In a homicide case 6 different witnesses picked the same man from a line up. The line-up contained 5 men. If the identifications

Vedmedyk [2.9K]

Answer:

since we have 6 witnesses and 5 men so,

therefore the probability that they would pick the same man is $\frac{5}{6} =0.83333$ to 5 decimal places

Step-by-step explanation:

probability is the likelihood of an event occurring or not happening.

6 0

2 years ago

2/5 times 2/3 = what

Luda [366]

Answer:

16/15

Step-by-step explanation:

5 0

2 years ago