Ask question

Ask question

All categories

3 years ago

13

David was solving the following problem “determine 80% of 10” and got 80. Where did David go wrong? Show your Work!

1 answer:

bulgar [2K]3 years ago

3 0

Answer: He went wrong when multiplying.

Step-by-step explanation: He went wrong when multiplying because if you actually do the problem your answer would be 8 but he probably did 8 times 10.

You might be interested in

You and a friend start riding bikes toward

Setler [38]

Answer:

1.5 hours

I traveled farther

2 miles

Step-by-step explanation:

$\text{Speed}=\dfrac{\text{Distance}}{\text{Time}}$

My speed

$\dfrac{2\dfrac{1}{6}}{\dfrac{1}{4}}=\dfrac{\dfrac{13}{6}}{\dfrac{1}{4}}=\dfrac{26}{3}\ \text{mph}$

Speed of my friend

$7\dfrac{1}{3}=\dfrac{22}{3}\ \text{mph}$

Time passed for both me and my friend will be equal if we start at the same time and the combined distance covered by both of us will be 24 miles. Let $t$ be the time taken to meet

$\text{Distance}=\text{Speed}\times\text{Time}$

$\dfrac{26}{3}t+\dfrac{22}{3}t=24\\\Rightarrow \dfrac{48}{3}t=24\\\Rightarrow 16t=24\\\Rightarrow t=\dfrac{24}{16}\\\Rightarrow t=1.5\ \text{hours}$

So, we meet each other after 1.5 hours.

Distance traveled by me

$\dfrac{26}{3}\times 1.5=13\ \text{miles}$

Distance traveled by my friend

$\dfrac{22}{3}\times 1.5=11\ \text{miles}$

So, I traveled farther by $13-11=2\ \text{miles}$ .

7 0

3 years ago

MAXImum [283]

Answer:

False :)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

PLZ HELP ME <br> I appreciate any help, especially if you can show me how you got the answer

Arte-miy333 [17]

Answer:

C

Step-by-step explanation:

Since this is an indererminate form, use L'Hopital

d(sint)/dt = cos(t)

d[ln(2e^t) - 1] = (2e^t)/[2e^t - 1]

As t --> 0,

cos(0) = 1

(2e^t)/[2e^t - 1] = 2

1/2 is the limit

5 0

4 years ago

What is a commission

velikii [3]

Answer:

Commission-An instruction/command given to a person or group of people.

4 0

3 years ago

Read 2 more answers

The last time you ordered paper you paid $5.00 per ream. the current price is $4.70 per ream. what is the percent of decrease in

gogolik [260]

The answer is c. 6%

4 0

3 years ago

Read 2 more answers