All categories

2 years ago

Olga collected 13 seashells and Katrin collected 4 shells. How many total shells did Olga and Katrin collect all together?

Mathematics

2 answers:

creativ13 [48]2 years ago

5 0

Answer:

Step-by-step explanation:

If Olga collected 13 and Katrin 4, to "collect all together " means to get the sum, so you add 13+4 hence giving you 17

Gelneren [198K]2 years ago

3 0

Answer:

17 seashells

Step-by-step explanation:

13+4=17

I hope this works :)

You might be interested in

Find the area of triangle ABC with vertices A(2,1), B (12,2), C (12,8). Hence, or otherwise find the perpendicular distance from

Lapatulllka [165]

<h2>The area of a triangle is =54 square units</h2><h2>The perpendicular distance from B to AC is = $\frac{108}{\sqrt{149} } units$ </h2>

Step-by-step explanation:

Given a triangle ABC with vertices A(2,1),B(12,2) and C(12,8)

$x_1=2,y_1=1,x_2=12,y_2=2,x_3=12 and y_3=8$

The area of a triangle is= $\frac{1}{2} [x_1(y_2-y_3) +x_2 (y_3- y_1)+x_3(y_1-y_2)]$

= $|\frac{1}{2} [2(2-8+12(8-1)+12(1-2)]|$

= $|-54|$ = 54 square units

The length of AC = $\sqrt{(x_1-x_3)^{2} +(y_1-y_3)^2}$

= $\sqrt{(2-12)^{2} +(1-8)^2}$

= $\sqrt{149}$ units

Let the perpendicular distance from B to AC be = x

According To Problem

$\frac{1}{2} \times x \times \sqrt{149} = 54$

⇔ $x =\frac{108}{\sqrt{149} }$ units

Therefore the perpendicular distance from B to AC is = $\frac{108}{\sqrt{149} } units$

5 0

2 years ago

Find the greatest common divisor of 9 and 27

Dimas [21]

<span>

The good answer is 9
(9:9=1 and 27:9=3)</span>

3 0

3 years ago

The height of a right cylinder is 3r , where r is the radius. Write a function f in simplest form that represents the ratio of t

son4ous [18]

Answer:

I think it's 9 again I think

Step-by-step explanation:

7 0

2 years ago

A rectangle has vertices at these coordinates.(3,6), (3,4), (6,4)What are the coordinates of the fourth vertex of the rectangle?

omeli [17]

Hi, i hope this helps! The coordinates are (6,6). I figured this out by plotting the given points and remembering that a rectangle has parallel sides and right angles :))

5 0

3 years ago

-(y + 2) + 8 = 3<br> I’m so confused on this, please send help

Hoochie [10]

Don't be worried friend :)

-(y + 2) + 8 = 3

=> -(y + 2) = -5

=> y + 2 = 5

=> y = 3

7 0

2 years ago

Olga collected 13 seashells and Katrin collected 4 shells. How many total shells did Olga and Katrin collect all together?​

Olga collected 13 seashells and Katrin collected 4 shells. How many total shells did Olga and Katrin collect all together?