Oppgave 5 (1 poeng) Sara bruker 0,5 timer på å løpe 4 km . Hvor lang tid vil hun bruke på 6 km hvis hun løper med samme hastighet? 0,6 timer 45 min

Exercice 15 : Répartitions en pourcentage 1. Un gâteau contient \( 60 \% \) de farine, \( 20 \% \) de sucre et \( 20 \% \) de beurre. Combien de farine faut-il pour un gâteau de 500 g ? 2. Si on double la quantité de beurre, quel est le nouveau pourcentage de beurre? 3. Si on ajoute 100 g de chocolat, quelle est la proportion de chocolat dans le nouveau mélange?

Seorang petani mencatat bahwa hasil panennya selama 5 tahun terus bertambah \( 20 \% \). Jika pada panen pertama, jumlahnya 10 ton, maka hasil panen di tahun ke 4 adalah _ ton.

Jika diketahui suku barisan aritmatika bersifat \( x \) \( k+2=x_{k}+p \), dengan \( p \neq 0 \), untuk sebarang bilangan asli positif, maka \( x_{3}+x_{5}+x_{7}+\ldots+x_{2 n+1} \) adalah

1. All even numbers less than ten are arranged in descending order to form a number. a) Write the number formed b) State the total value of the second digit in the number formed in (a) above (1 mark)

On Mondey the photocopier uses 312 sheets of paper. 64 yuesday 500 more sheets are put in it. 646 sheets orpaper are used. There is then no paper left in the photocopier. Write how many sheets of paper were in the photocopict at the beginning Show your working.