Answer:
Step-by-step explanation:
Total pink triangles = 24
Let first 10 triangles be a circle
let second ten triangles be a square
⇒ red circle = 10 triangles
⇒blue square = 10 triangles
Remaining triangles = 4
Thus circle+square+4 triangles=10+10+4
=24
Refer the attached figure.
This is a quick picture to show 24 after you have regrouped 1 ten as 10 ones
Answer: 3 lessons
Step-by-step explanation:
Matt starts swimming lessons on Day 5.
He then goes to swimming lessons every 10 days. The dates he went on lessons are therefore:
First lesson = Day 5
Second lesson = Day 5 + 10 days = Day 15
Third lesson = Day 15 + 10 days = Day 25
Fourth lesson = Day 25 + 10 days= Day 35
<em>He therefore only went for 3 lessons because the 4th lesson was after Day 30. </em>
Probability is the ratio of something occurring vs something not occuring
As there is a 100% chance he'll be taking the test,
0.49= 49% he'll be passing
100% = 49% + x
where x= chance he'll fail
therefore x= 100%-49%= 51% he'll fail!
Answer: 9:25 ?
Step-by-step explanation:
4.5 × 2 = 9
12.5 × 2 = 25
4.5:12.5 ratio simplified is 9:25
