Предмет: Математика, автор: masya237

в картофеле содержится 20% крахмала. сколько картофеля понадобится что бы получить 15 кг крахмала ​


jekadva: =75

Ответы

Автор ответа: NNNLLL54
9

Ответ:   75 кг .

Пошаговое объяснение:

 Пропорция:      15 кг  -   20%

                              х кг  -   100%       х=(15*100):20=75 кг

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Предмет: Английский язык, автор: fk5nmgvczp
The smartphone - the spy we adore
Last week, my friend Kate sent me a photo of sunglasses and a short message: Cool or not?
I replied that the sunglasses looked great and that she should buy them. Later, when I was checking my Facebook, I noticed an
advert on the page for the same sunglasses. A few days later, something very strange happened again.
My parents and I were talking about visiting our cousins in Kyiv. My phone was next to me, but I wasn't using it. Well, the next day.
when I was shopping online, an advert appeared about holidays in Kyiv! This is crazy!' I said to myself. Was my phone secretly
listening to me? I checked online and I found out that smartphones can, and they do spy on us! A lot of apps on your phone
use everything to get information about you. That's why, many apps ask for access to your contacts, emails, texts, photos,
microphone and camera. But why? Well, it's all about money! Companies use data from your phone to offer you products or
services you might be interested in. But some apps may not ask for permission first. That's scary!
So what can you do about it? Just go to the settings in your phone and see what each app has access to. You'll probably find
some of them have access to the microphone and camera. For apps you want to keep or those that can't be uninstalled, it's best
to turn the microphone and camera off. That way, they can't record you.
Oh, and if you don't believe me about spying, maybe you'll believe Mark Zuckerberg, the boss at Facebook. He covers his laptop
camera and microphone with tape! Maybe you should too?
1 What was the advert Lucy saw for?
A sunglasses she bought
B sunglasses her friend wanted to buy
C sunglasses she bought on Facebook
D sunglasses her friend posted a photo of
2 What was strange about adverts for holidays in Kyiv?
A Lucy's parents had been there recently.
B Lucy had just returned from a shopping trip there.
C Lucy had not searched for the information before.
DA cousin from Kyiv was visiting Lucy at the time.
3 What is true about apps on your phone?
A They know who your friends are, if you let them.
B They check your pictures.
C They may listen to your conversations.
D All of the above.
4 What does the text advise to do with useful apps?
A Delete the apps.
B Uninstall the apps.
C Record the apps.
D Turn off the camera and microphone for the apps.
5 According to the text, what does Mark Zuckerberg do?
A He spies on customers.
B He covers his camera and microphone.
C He does not use his laptop camera.
D He doesn't believe in spying.
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