# Math review for Tri

Ben has 48 counters, he gives 1/3 to Sarah, and 1/2 of the remaining to Anne, how many counters does he have left?
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Slide 1: Open vraag
MathSecondary Education

In deze les zitten 14 slides, met interactieve quizzen en tekstslide.

## Onderdelen in deze les

Ben has 48 counters, he gives 1/3 to Sarah, and 1/2 of the remaining to Anne, how many counters does he have left?

#### Slide 1 -Open vraag

There are 427 students in Vinschool, and a car provides 13 seats so how many cars do we need to provide all seats to the students?

#### Slide 2 -Open vraag

Do an estimate of 4.69420 x 6.5143/2.6x1.9 in an appropriate degrees of accuracy

#### Slide 3 -Open vraag

Work out the inverse for:
x --> 7x+2
x --> 4/x - 6

#### Slide 6 -Open vraag

Solve the inequality
c/6 > 2.5

#### Slide 8 -Open vraag

Factorise the expression:
21a - 28a^2

#### Slide 9 -Open vraag

A polygon has the total sum of the interior angles of 1440 degrees.
How many sides does the polygon have?

#### Slide 10 -Open vraag

John travels 60 miles for 1 hours and 30 minutes.
Work out his speed.

#### Slide 11 -Open vraag

Work out one possible set of x and y:
2^x (x) 3^y = 6^8

#### Slide 12 -Open vraag

Work out the 6th term of the geometric sequence:
1/2, 1/4, 1/8, 1/16, etc.

#### Slide 13 -Open vraag

Mira uses 624 grams of flour
in a ratio of 2:3 to milk, what will be the ml of milk