Ask question

Ask question

All categories

3 years ago

12

John had a rock that weighed 128 kg. The scale he used to weigh the rock has a percent error of 2%. Which could be measured weig

hts of the rock?

1 answer:

Genrish500 [490]3 years ago

4 0

Answer:

a

Step-by-step explanation:

You might be interested in

The product of which expression contains four decimal places?

Naya [18.7K]

Answer:

D.) 14.2*0.784

Step-by-step explanation:when you calculate it, there is 4 numbers behind the decimal point.

3 0

3 years ago

leda bakes 73 cupcakes and accidentally drop 5 of them. she divided them equally into 13 containers for a bake sale for the scho

Vadim26 [7]

If she dropped 5 out of 73 . The answer would be 68 . Or are you asking how many are in the container

5 0

3 years ago

A coffee shop charges $2.50 for each cup of coffee and $1.50 for a cupcake. Your mom gives you $10 and ask you to buy 5 cupcakes

Dominik [7]

Answer:

$\frac{10-7.50}{2.50}$ $\geq$ c

1 cup of coffee

Step-by-step explanation:

Let's say c = coffee

5 cupcakes would cost 5*1.50 = 7.50

We can make an inequality :

$\frac{10-7.50}{2.50}$ $\geq$ c

Now we can solve the inequality

10 - 7.50 = 2.50

2.50/2.50 = 1

The maximum cup of coffee you can buy is 1

Hope this helps :)

5 0

2 years ago

Read 2 more answers

5 |2x + 6| = 25 what is x

Dvinal [7]

Step-by-step explanation:

මාපාංක සුලු කිරිම.

l xl means ± x .

then |2x+6| = ±(2x+6)

for positive no;

5 (2x+6) = 25

10x + 30 = 25

10x = -5

x = -1/2

for negative no;

5(-2x - 6) = 25

-10x - 30 = 25

-10x = 55

x = - 11/2

otherthan that I observed.

5 |2x + 6| means only consider about the positive number. i think it called as amplitude.

then you have to calculate by considering only considering plus value.

How ever in my openion is first method is correct. i have doubt about that. so you have to discuss your teacher dear. to find correct way.

3 0

2 years ago

Kiersten runs a website that helps people learn programming. Every month, Kiersten receives a subscription fee of \$10$10 from e

serious [3.7K]

Answer:

$1200.

Step-by-step explanation:

We have been given that Kiersten runs a website that helps people learn programming. Every month, Kiersten receives a subscription fee of $10 from each of the subscribers to her website.

First of all we will find the number of subscribers for this month.

$\text{Total number of subscribers this month}=100+30-10$

$\text{Total number of subscribers this month}=130-10=120$

Now let us multiply number of total subscribers of this month by 10 to find the amount Kiersten will earn by her online business.

$\text{Kiersten's earnings this month from online business}=120*10$

$\text{Kiersten's earnings this month from online business}=1200$

Therefore, Kiersten will earn $1200 this month by her online business.

8 0

3 years ago