I need an explanation as to why the other three are wrong aswell

Mathematics

1 answer:

storchak [24]3 years ago

8 0

Answer:

Step-by-step explanation:

B is the only one that has only 2 sides of the same length and one that doesn't match the other 2.

A doesn't have any of the lengths being the same

C. is a right triangle, although there can be isosceles right triangles they still need to have only 2 lengths that are the same and in this one, all the values are different

D. This is an equilateral triangle, this has more than 2 lengths that are the same

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Eduardo spent half of his weekly allowance on clothes. To earn more money his parents let him weed the garden for $8. What is hi

lbvjy [14]

Answer: his weekly allowance is $8

The model to solve the problem is

X/2+8=12

Step-by-step explanation:

To get Eduardo's weekly allowance

Say it is x

Now he spent half of x on clothes and earns extra $8 more to end up with $12

Therefore

x/2+8=12

x/2=12-8

x/2=4

x=8

7 0

3 years ago

Read 2 more answers

2067 Supp Q.No. 2a Find the sum of all the natural numbers between 1 and 100 which are divisible by 5. Ans: 1050

Alborosie

Answer:

1050

Step-by-step explanation:

Natural Numbers are positive whole numbers. They aren't negative, decimals, fractions. We can just divide 5 into 100 to find how many natural numbers go up to 100 and just add them but that is just to much.

There is a easier method.

E.g: Natural Numbers that are divisible by a Nth Number. is the same as adding the Nth Numbers to a multiple of that Nth Term. For example, let say we need to find numbers divisible by 2. We know that 4 is divisible by 2 because 4/2=2. We can add the Nth numbers which is 2 to 4. 4+2=6. And 6 is divisible by 2 because 6/2=3. We can call this a arithmetic series. A series which has a pattern of adding a common difference