All categories

3 years ago

How many questions did he get correct?

Mathematics

1 answer:

romanna [79]3 years ago

4 0

Answer:

15 questions correct

15/20 = 75%

each 5 questions is 25 percent of the 100% so 3 x 5 = 15 = 75%

Step-by-step explanation:

You might be interested in

Through (7,2); parallel to 3x-y=8.

Dovator [93]

Answer:

x=4 y=4

Step-by-step explanation:

4 0

3 years ago

A standard piece of paper is 0.05 mm thick. Let's imagine taking a piece of paper and folding the paper in half multiple times.

tatyana61 [14]

Answer:

(a) $g(n)=0.05\cdot 2^n$

(b) $g^{-1}(n)=\log_{2}20g(n)$

Step-by-step explanation:

Part A

The paper's thickness = 0.05mm

When the paper is folded, its width doubles (increases by 100%).

The thickness of the paper grows exponentially and can be modeled by the function:

$g(n)=0.05(1+100\%)^n\\\\g(n)=0.05\cdot 2^n$

Part B

$g(n)=0.05\cdot 2^n\\2^n=\dfrac{g(n)}{0.05}\\ 2^n=20g(n)\\$Changing to logarithm form, we have:\\\log_{2}20g(n)=n\\$Therefore:\\g^{-1}(n)=\log_{2}20g(n)$

Part C

If the thickness of the paper, g(n)=384,472,300,000 mm

Then:

$g^{-1}(n)=\log_{2}20g(n)\\g^{-1}(n)=\log_{2}20\times 384,472,300,000\\=\dfrac{\log 20\times 384,472,300,000}{\log 2} \\g^{-1}(n)=42.8 \approx 43\\n=43$

You must fold the paper 43 times to make the folded paper have a thickness that is the same as the distance from the earth to the moon.

3 0

3 years ago

How much ice cream can be put into a cone with radius 3.5 cm and height 12cm

ivolga24 [154]

Step-by-step explanation:

radius of the cone = 3.5cm

height of cone = 12 cm

volume of cone = pie × r ^2 × h

= 1/3 × 22/7 × 35/10× 35 /10 × 12 = 154 cm^3

the extra icecream cannot be measured untill it's weight is not given.

6 0

3 years ago

I'm timed. Factor the Expression 4x - 30y

kotykmax [81]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Compare using benchmark fractions or 1. Then choose Yes or No to tell if the comparison is correct.

kati45 [8]

Answer:

YA NA NA YA

Step-by-step explanation:

Cuz im smart

3 0

3 years ago

How many questions did he get correct?​

How many questions did he get correct?