Läxa 10 I X-boken

1. Mustafa har 500 kr i tiokronor. Hur många tiokronor har han?

The given answer "50 st, 50, 50st" implies that Mustafa has 50 tiokronor coins. The "st" is an abbreviation for the Swedish word "stycken," which means "pieces" in English. Therefore, the correct answer is 50 tiokronor coins.

Explanation

The given answer "50 st, 50, 50st" implies that Mustafa has 50 tiokronor coins. The "st" is an abbreviation for the Swedish word "stycken," which means "pieces" in English. Therefore, the correct answer is 50 tiokronor coins.

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2. I en aula finns 244 platser. Vid ett tillfälle lyssnar 192 elever och 6 lärare på en konsert i aulan. Hur många platser är tomma?

There are 244 seats in the auditorium. At one time, 192 students and 6 teachers are listening to a concert in the auditorium. To find the number of empty seats, we subtract the total number of people from the total number of seats: 244 - (192 + 6) = 46. Therefore, there are 46 empty seats.

Explanation

There are 244 seats in the auditorium. At one time, 192 students and 6 teachers are listening to a concert in the auditorium. To find the number of empty seats, we subtract the total number of people from the total number of seats: 244 - (192 + 6) = 46. Therefore, there are 46 empty seats.

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3. En påse med 10 kg apelsiner kostar 119 kr. Vilket är priset per kilogram?

Skriv INTE 11,9, för vi säger aldrig 11,9 ("elva komma nio" kr. Vi säger 11,90. Ok?

Explanation

Skriv INTE 11,9, för vi säger aldrig 11,9 ("elva komma nio" kr. Vi säger 11,90. Ok?

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4. En film på TV börjar kl. 20.50. Filmen är en timme och trettio minuter lång. Hur mycket är klockan när filmen är slut?

Skriv INTE 22,20 för ett decimaltecken betyder att det är hundradelar efter tecknet. Det finns INTE 100 minuter på en timme, alltså skriver vi antingen kolon: eller punkt..

Explanation

Skriv INTE 22,20 för ett decimaltecken betyder att det är hundradelar efter tecknet. Det finns INTE 100 minuter på en timme, alltså skriver vi antingen kolon: eller punkt..

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5. Hur lång tid har det gått mellan klockslagen 9.50-13.25?Svara i timmar och minuter.

The correct answer is 3 hours and 35 minutes. This is the amount of time that has passed between the clock times 9:50 and 13:25.

Explanation

The correct answer is 3 hours and 35 minutes. This is the amount of time that has passed between the clock times 9:50 and 13:25.

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6. Skriv vikten i hektogram (hg):1,2 kg =______ hg

The given question asks for the weight in hectograms (hg) of 1.2 kg. The correct answer is 12 hg, as 1 kg is equal to 10 hg, so 1.2 kg would be equal to 12 hg. The other options provided (12, 12 hekto, 12hekto, 12hg) are all incorrect as they either do not provide the correct unit of measurement or do not convert the weight correctly.

Explanation

The given question asks for the weight in hectograms (hg) of 1.2 kg. The correct answer is 12 hg, as 1 kg is equal to 10 hg, so 1.2 kg would be equal to 12 hg. The other options provided (12, 12 hekto, 12hekto, 12hg) are all incorrect as they either do not provide the correct unit of measurement or do not convert the weight correctly.

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7. Skriv i hektogram (hg) följande vikt:210 g = ______hg

The given question asks to convert 210 grams to hektograms (hg). The correct answer options are 2,1, 2.1, 2.1 hg, 2,1 hg, 2,1 hekto, and 2.1 hekto. All of these options represent the conversion of 210 grams to hektograms, with the decimal point separating the whole number and the decimal fraction. The options include both the use of commas and periods as decimal separators, as both are commonly used in different countries.

Explanation

The given question asks to convert 210 grams to hektograms (hg). The correct answer options are 2,1, 2.1, 2.1 hg, 2,1 hg, 2,1 hekto, and 2.1 hekto. All of these options represent the conversion of 210 grams to hektograms, with the decimal point separating the whole number and the decimal fraction. The options include both the use of commas and periods as decimal separators, as both are commonly used in different countries.

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10. 1,1 h = ______ min

0,1 h är 1/10 av en timme. En tiondels timme får man om man delar 60/10=6 min. Så en hel och en tiondels timme blir 60+6= 66 min.

Explanation

0,1 h är 1/10 av en timme. En tiondels timme får man om man delar 60/10=6 min. Så en hel och en tiondels timme blir 60+6= 66 min.

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11. Vad kostar 10 kg äpplen om priset per kilogram är 12,90 kr?

The correct answer is 129 kr. This can be calculated by multiplying the price per kilogram (12.90 kr) by the weight (10 kg). So, 12.90 kr x 10 kg = 129 kr.

Explanation

The correct answer is 129 kr. This can be calculated by multiplying the price per kilogram (12.90 kr) by the weight (10 kg). So, 12.90 kr x 10 kg = 129 kr.

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12. En förpackning med fyra batterier kostar 48 kr. Vad kostar batterierna per styck?

The correct answer is 12 kr. This is because the package of four batteries costs 48 kr, so to find the cost per battery, we divide 48 kr by 4. This gives us a cost of 12 kr per battery.

Explanation

The correct answer is 12 kr. This is because the package of four batteries costs 48 kr, so to find the cost per battery, we divide 48 kr by 4. This gives us a cost of 12 kr per battery.

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13. Beräkna med överslagsräkning och svara med det som är närmast (alltså räkna INTE ut exakta värdet)

3 comma 78 times 42 comma 5

almost equal to

120

140

160

200

Avrunda 3,78 till 4, och 42,5 till 40. 4x40=160.

Explanation

Avrunda 3,78 till 4, och 42,5 till 40. 4x40=160.

14. Åsa köper äpplen som sammanlagt väger 700 g. Hon betalar med en tjugokronorssedel. Hur mycket får hon tillbaka om priset per kilo för äpplena är 19,90 kr/kg?

14 kr tillbaks (0,7 kg x 20)

7 kr tillbaks (20-13=7)

6 kr tillbaks (0,7 x 19,90 = 13,93. 20-14=6)

The correct answer is 6 kr tillbaks (0,7 x 19,90 = 13,93. 20-14=6). This answer is obtained by calculating the total cost of the apples, which is 0.7 kg multiplied by the price per kilo (19.90 kr/kg), resulting in 13.93 kr. As the customer pays with a 20 kr note, the amount of change she will receive is the difference between 20 kr and the cost of the apples, which is 6 kr.

Explanation

The correct answer is 6 kr tillbaks (0,7 x 19,90 = 13,93. 20-14=6). This answer is obtained by calculating the total cost of the apples, which is 0.7 kg multiplied by the price per kilo (19.90 kr/kg), resulting in 13.93 kr. As the customer pays with a 20 kr note, the amount of change she will receive is the difference between 20 kr and the cost of the apples, which is 6 kr.