I am a two digit odd number less than fifty. The sum of my digits is seven and my root is 5. What number am I?

Answers

Answer 1

Answer:

Answer: 25

Step-by-step explanation:

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Write an expression that us equivalent to 7/8

Answers

14/16
21/24

Those are expressions for 7/8

Yoko needs to buy some pencils brand a has a pack of 28 pencils for 4.19 brand b has a pack of 72 pencils for 9.12 find the unit price for each brand

Answers

Answer:

a=0.15 per unit

b=0.13

Step-by-step explanation:

4.19 divided by 28 is 0.15

9.12 divided by 72 is 0.13

Find the area of the following shape.

Please explain how you broke it up and did

Answers

See attached image.

I broke it up into 4 different shapes, 3 triangles and a square.

Area for a triangle is 1/2 x base x height:

Triangle 1: 1/2 x 4 x 3 = 6

Triangle 2: 1/2 x 6 x 3 = 9

Triangle 3: 1/2 x 1 x 6 = 3

Area of square = S^2 = 6^2 = 36

Total area = 36 + 6 + 9+3 = 54 square units

Draw a segment from point E to point B. Now you have a triangle above with base FB of length 10 and height EA of length 3, and a trapezoid below with bases DC of length 7 and EB of length 6 and height CB of length 6.

area of figure = area of triangle + area of trapezoid

area of figure = bh/2 + (b + b)h/2

area of figure = 10(3)/2 + (7 + 6)(6)/2

area of figure = 15 + 39

area of figure = 54

Factorise y^2 - 169?????????????

Answers

= y^2 - 169
= (y)^2 - (13)^2
= (y + 2)(y - 2)

Step 1. Rewrite it in the form: $a^(2) - b^(2)$ , where a = y and b = 13

$y^(2) - 13^(2)$

Step 2. Use Difference of Squares: $a^(2) - b^(2) =(a+b)(a-b)$

$(y+13)(y-13)$

Done!

A builder planned to build houses. Each house will be built on 5/6 of an acre. How much land would be needed for 7 houses? The builder began with 10 acres of land . After 7 houses were built, how much land was left unused?