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3 years ago

What is the area of the triangle below

Mathematics

1 answer:

Volgvan3 years ago

5 0

The area of a triangle is 1/2*base*height

If h=8, b=15, then we have 1/2*8*15 which is 1/2*120 which is 60

So the right choice is B

Hope this helped!

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How do I solve this problem

Ronch [10]

$\overline{LK}\cong\overline{MK}\\LK=MK=7x-10\\KN=x+3\\MN=9x-11\\KJ=28\\\\MN=MK+KN\\\text{therefore we have the equation:}\\9x-11=(7x-10)+(x+3)\\9x-11=8x-7\ \ \ |+11\\9x=8x+4\ \ \ \ |-8x\\x=4$

$LJ=LK+KJ\\\\LK=7x-10\to LK=7(4)-10=28-10=18\\\\\text{therefore}\\LJ=18+28=46$

Answer: LJ = 46.

4 0

3 years ago

A train covers 165 km in 1.5 hours. How far will the train travel in 2.2 hours if it maintains the same speed?

GaryK [48]

Answer:

242 km

Step-by-step explanation:

distance = rate x time

so 165 km in 1.5 he is the same as 110 km per hour.

d = 110(2.2).

4 0

3 years ago

Read 2 more answers

An art teacher has a jar containing b buttons to distribute to her class for a project. In order to give each in the class 6 but

Nastasia [14]

Answer:

Step-by-step explanation:

Given:

An art teacher has the total number of buttons = $b$

1. In order to give each in the class 6 buttons, she will need 18 more buttons.

2. If she gives each child 5 buttons, she will have 4 left over.

Question asked:

How many children are in the class ?

Solution:

Let total number of children in the class = $x$

As given that, 18 more buttons will be needed to give 6 buttons to each.

The equation will be:-

$b+18=6x\\b-6x=-18\ (equation\ 1)$

Also given that, If she gives 5 buttons to each, she will have 4 left over.

The equation will be:-

$b-5x=4\ (equation\ 2)$

Subtraction equation 2 from 1

$b-6x-(b-5x)=-18-4\\b-6x-b+5x=-22\\-6x+5x=-22\\-x=-22\\Minus\ canceled\ by\ minus\\x=22$

Hence, total number of children are 22.

4 0

4 years ago

Please help me I really need help

lesya692 [45]

Hi! the first one is -2+6 i & the second one is parallelogram!

5 0

3 years ago

Read 2 more answers

Meredith wants to paint 3 of the walls in her room. Each wall has the shape of a rectangle with dimensions 10 feet by 12 feet. S

andreev551 [17]

The area of a rectangle is obtained by multiplying the lengths of its sides. In this case, each wall is 10 feet by 12 feet. So, the area of one wall is 10 * 12 square feet which is 120 square feet. There are three walls that need to be painted. The total area that needs to be painted is obtained by multiplying the area of one wall by the total number of walls. So, total area is 120 * 3 = 360 square feet. It is stated that 1 can of paint can cover 420 square feet and that Meredith has 1 can of paint with her. So, Meredith has enough paint to paint the three walls in her room.

4 0

3 years ago