# economics

posted by .

Young Saul, a budding mctaemhtiaian and printer, is making himself a fake ID. He needs it to say heâ€™s 21. The problem is heâ€™s not using a computer, but rather he has some symbols heâ€™s bought from the store, and thatâ€™s it. He has one 1, one 5, one 6, one 7, and an unlimited supply of + â€“ * / (the operations addition, subtraction, multiplication and division). Using each number exactly once (but you can use any number of +, any number of -, â€¦) how can he get 21 from 1, 5, 6, 7?Note: you canâ€™t do things like 15+6 = 21. You have to use the four operations as â€˜binaryâ€™ operations: ((1+5)*6)+7.

• economics -

No hablo mctaemhtiaian

## Similar Questions

1. ### hea;th care

I am writing a essay on EMR and can not find The adoption period for EMR. I know it is a growing process but would like to know how long it takes ot first set it up in an organization. Can anyone help?
2. ### SOCIAL STUDIES ECONOMICS 7TH GR

I need to explain the terms from an economic view rather than a political view of. But I need to show this 3 concepts of economics with just pictures and symbols that reflect how i understand the concept. I need to use minimal words. …
3. ### Hea;th

Empty calories are defined as ________. A. Calories from dairy products only B. Calories from low-fat foods and/or fruits and vegetables C. Calories from water and other foods or beverages that have zero calories D. Calories from solid …
4. ### Barber Scotia

your planning to buy a new computer monitor and printer for your office. you received the following prices: Store 1; Computer 2500 monitor 595 printer 398 Store 2 computer 2350 monitor 435 printer 349 find the total package price from …
5. ### chemistry

The enthalpy of formation of MX is ΔHf° = –493 kJ/mol. The enthalpy of sublimation of M is ΔHsub = 143 kJ/mol. The ionization energy of M is IE = 437 kJ/mol. The electron affinity of X is ΔHEA = –317 kJ/mol. (Refer …
6. ### Chemistry

A type of hea that involves heated fluids, such as liquids or gases, moving and flowing is called?
7. ### Chemistry

Consider an ionic compound, MX2, composed of generic metal M and generic, gaseous halogen X. The enthalpy of formation of MX2 is ΔHf° = –799 kJ/mol. The enthalpy of sublimation of M is ΔHsub = 157 kJ/mol. The first and …
8. ### Chemistry

Consider an ionic compound, MX2, composed of generic metal M and generic, gaseous halogen X. The enthalpy of formation of MX2 is ΔHf° = –799 kJ/mol. The enthalpy of sublimation of M is ΔHsub = 157 kJ/mol. The first and …
9. ### statistics

John runs a computer software store. Yesterday he counted 133 people who walked by the store, 66 of whom came into the store. Of the 66, only 24 bought something in the store.
10. ### math

A man bought a cake and ate 1/7 from it immediately. Two hours later, hea ate 2/5 of the remainder and then gave 1/4 of the cake that is left to his cat. Calculate the fraction of the cake is left.

More Similar Questions