I need to solve these problems. Plz solve theses problems ASAP.

Step-by-step explanation:

Let's start with the first problem :

To get the initial amount that Dora had we must multliply 72 by 3 since she spent 1/3 and 3 is the total number of parts

Jack spent 1/4 of his total amount and had 144 left

Let's check : 192-48= 144 so it's right

The second question :

We notice that the total area A is the sum of the white square's area and the blue region's area

The third problem :

Let's check : 150-31 = 119  119*2= 238

                       207 + 31 = 238 that's right

so mo gave 31 stickers to alex

1. £48.

2. 9 centimetres.

3. 31 stickers.

Step-by-step explanation:

1. Since Dora spent 1/3 of her money, we can set up an equation to find out how much money she has in total.

1/3D = £72.

1/3 * 3D = £72 * 3

D = £216.

That means that Dora had £216, but then spent £72. 216 - 72 = £144. So, Dora has £144 left.

Since both people have the same amount left, and Jack spent 1/4 of his money, we can set up an equation.

3/4J = £144

(4/3)(3/4)J = 144(4/3)

J = £192.

That means that Jack had £192, but he spent it all until he only had £144 left. The amount that he spent was 192 - 144 = £48.

2. First, we can solve for the area of the inner white square. 4 * 4 = 16. The area of the white square is 16 centimetres squared.

Add that to the blue region, and you can get the area of the entire square. 65 + 16 = 81.

To find the area of a square, you do side length times side length. So, to find the side length from an area, you do the square root of the area. sqrt(81) = sqrt(9 * 9) = 9.

The length of the large blue square is 9 centimetres.

3. To start, a = 207 stickers and m = 150 stickers. x = the amount of stickers given to Alex.

a + x = 2(m - x)

207 + x = 2 * 150 - 2x

207 + x = 300 - 2x

x + 2x = 300 - 207

3x = 93

x = 31

So, Mo gave Alex 31 stickers.

Hope this helps!!

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.