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3 years ago

Simply the following expression 3/7 + 5/14

Mathematics

1 answer:

Allushta [10]3 years ago

7 0

Answer:

11/14

Step-by-step explanation:

We need to get a common denominator of 14

3/7 *2/2 = 6/14

5/14 already has a denominator of 14

6/14+5/14 = 11/14

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Could I have some help please

solmaris [256]

Since AB=AD, the triangle on the left is isosceles and has two 35 degree angles. Since the sum of all the interior angles is 180 deg,

x = 180 deg - 2(35 deg) = 110 deg (answer)

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3 years ago

Look at the table. Make a conjecture about the sum of the first 15 positive even numbers.

Olenka [21]

Be observing the table, we can write the following conjecture:

When adding consecutive even numbers, starting from 2 to $m$ .

Then the sum is equal to:
$\frac{m}{2}( \frac{m}{2} +1)$

Then, the sum of the first 15 positive even numbers (which is the sum of 2 to 30) can be calculated with the previous conjecture by setting $m=30$ :
$\frac{m}{2}( \frac{m}{2} +1)=\frac{30}{2}( \frac{30}{2} +1)=(15)(16)=240$

The answer is 240.

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4 years ago

Help me with this math problem i don’t understand it

pav-90 [236]

Answer:

13meters

Step-by-step explanation:

c^2=a^2+b^2

12^2+5^2=169

find squareroot of 169 which is 13meters

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3 years ago

Give a button and a bookmark

Vanyuwa [196]

Let's note the information.

This is what we know:

Every buttons came in packages of 30 per student.

Every bookmark came in packages of 50 per person.

Know, we need to do some multiplying.

30 x 400 & 50 x 400

Now solve.

30 X 400 = 12000.

So we now know that they have an estimated 12000 buttons total.

Now, we find x for bookmarks.

50 x 400 = 20000

That means total that estimated that 20000 bookmarks will be given.

3 0

3 years ago

Read 2 more answers

Graphing system of equations: y=5x+2 and y=-x+8

Harman [31]

Red - y=5x+2
blue - y=-x+8

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3 years ago