Quiz about untitled

Question 1

Expand and simplify 4(7x + 3).

Accepted Answer

28x + 12

Answer

28x + 3

Answer

47x + 12

Answer

47x + 3

Question 2

Expand and simplify -3( 2r + 5s).

Accepted Answer

-6r - 15s

Answer

-6r + 15s

Answer

-6r - 15

Answer

-6r + 2s

Question 3

Expand and simplify -(2y - 1).

Accepted Answer

-2y + 1

Answer

-2y - 1

Answer

2y + 1

Answer

2y - 1

Question 4

Simplify 3x + 2y - 2x + 3y.

Accepted Answer

x + 5y

Answer

5x + 5y

Answer

5x + y

Answer

5x - 5y

Question 5

Expand and simplify 2(x + 3) + 4

Accepted Answer

2x + 10

Answer

2x + 7

Answer

2x + 14

Answer

x + 10

Question 6

Expand and simplify 3(x + 2) + 4(2x +1).

Accepted Answer

11x + 10

Answer

11x + 7

Answer

7x + 10

Answer

11x + 3

Question 7

Expand and simplify 3(2z + 1) - 2(5 + z).

Accepted Answer

4z - 7

Answer

7z - 7

Answer

8z - 7

Answer

4z + 13

Question 8

Expand (x + 5)(x + 4)

Accepted Answer

x² + 9x + 20

Answer

x² + 20x + 20

Answer

5x2 + 20

Answer

x² + 6x + 9

Question 9

Expand (x + 2)(x - 4)

Accepted Answer

x² - 2x - 8

Answer

x² + 2x - 8

Answer

x² - 2x + 8

Answer

x² + 2x + 8

Question 10

Expand and simplify $$(3x + 4)(3x - 4)$$ .

Accepted Answer

$$9x^2 - 16$$

Answer

$$9x^2 + 16$$

Answer

$$9x^2 + 12x - 16$$

Answer

$$9x^2 - 12x + 16$$

Question 11

Factorise fully 18x + 24

Accepted Answer

6(3x + 4)

Answer

3(6x + 8)

Answer

2(9x + 12)

Answer

6x(3x + 4)

Question 12

Factorise x² + 4x

Accepted Answer

x(x + 4)

Answer

4x3

Answer

x(x + 4x)

Answer

x2(x + 4)

Question 13

Factor
k²+7x+10

Accepted Answer

(k+2)(k+5)

Answer

(k-2)(k-5)

Answer

(k+10)(k+4)

Answer

(k+2)(k-5)

Question 14

Factor
x² + x - 6

Accepted Answer

(x + 3)(x - 2)

Answer

(x + 2)(x + 3)

Answer

(x + 6)(x -1)

Answer

(x +1)(x - 6)

Question 15

Factorize:

$$q^2-13q+36$$

Accepted Answer

$$\left(q-9\right)\left(q-4\right)$$

Answer

$$\left(q+9\right)\left(q+4\right)$$

Answer

$$\left(q+9\right)\left(q-4\right)$$

Answer

$$\left(q-9\right)\left(q+4\right)$$

Question 16

IR = V
(solve for R)

Accepted Answer

R = V/I

Answer

R = IV

Answer

R = I/V

Answer

R = V - I

Question 17

In A=5ab, make [b] the subject of the formula

Accepted Answer

b=A/5a

Answer

b=5Aab

Answer

b=5Ab

Answer

b=5a/A

Question 18

Make x the subject of y = mx + 1

Accepted Answer

x = (y - 1)/m

Answer

x = y - 1/m

Answer

x = y/m - 1

Answer

x = my - 1

Question 19

$$ax+r\ =\ 7\ \ Solve\ for\ r.$$

Accepted Answer

$$r=7-ax$$

Answer

$$r=\frac{7}{ax}$$

Answer

$$r=7+ax$$

Answer

$$r=7ax$$

Question 20

Simplify this ratio 8 months : 1 year

Accepted Answer

2:3

Answer

8:12

Answer

4:3

Answer

3:4

Question 21

Five cups hold 1.2 L and 3 mugs hold 900 ml. Which hold more liquid, one cup or one mug?

Accepted Answer

Mug

Answer

Cup

Question 22

Share $ 420 in the ratio 3:4

Accepted Answer

180:240

Answer

120:300

Answer

6:7

Answer

210:210

Question 23

A box of fruits contains oranges and apples in the ratio of 4:2. If one box contains 54 fruits, how many boxes you need to deliver at least 144 apples?

Accepted Answer

8

Answer

5

Answer

7

Answer

10

Question 24

For homework, Michael had 1.5 hours of math and 3 hours of science. Emma had 1 hour of math and 2 hours of science. Who has more proportion of studying Math?

Accepted Answer

None of them

Answer

Emma

Answer

Micheal

Question 25

Write the ratio as a fraction in simplest form.
15 girls to 6 boys

Accepted Answer

5/2

Answer

5 to 2

Answer

5/3

Answer

3 to 5

Question 26

Do the ratios form a proportion?

Accepted Answer

Yes, they form a proportion.

Answer

No, they do not form a proportion.

Question 27

Solve the proportion.

Accepted Answer

k=5

Answer

k=3.3333333

Answer

k=60

Answer

k=90

Question 28

In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?

Accepted Answer

50

Answer

35

Answer

60

Answer

18

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