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3 years ago

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Mathematics

2 answers:

patriot [66]3 years ago

3 0

Answer:

i know

Step-by-step explanation:

Darina [25.2K]3 years ago

3 0

Answer:

Step-by-step explanation:

Use this formula to check the answer

$ab = \sqrt{(x1 - x2) { }^{2} (y1 - y2) {}^{2} }$

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X,28,20,4 find the value of x

Olin [163]

Answer:

I would say 36

Step-by-step explanation:

because 4 ×5 is equals the 20

then 4×7 equals the 28

so 4×9 equals 36

8 0

3 years ago

What is 2. 3/6 +1/6 +1 2/3

Kaylis [27]

3/6+1/6+1 2/3
Make 1 2/3 into an improper fraction:
5/3
Give them all common denominators by multiplying both sides of 5/3 by 2:
10/6
Then the question becomes:
3/6+1/6+10/6
Now you add the numerators and the denominator stays the same:
14/6
Now you can simplify by dividing both sides by 2:
7/3
Now you can make it a mixed number:
2 1/3

Hope this helps :)

8 0

3 years ago

Read 2 more answers

Find the 5th term of the sequence which has a first term of 1 and has a common ratio of 2.3

BabaBlast [244]

A funçao g(x) = 84 x representa o gasto medio , em reais , com a Compra de agua mineral de uma familia de 4 pessoas em x meses . Essa familia pretende deixar de comprar agua mineral e instalar em sua residência um purificador de agua que custa R$299,90 . Com o dinheiro enconomizado ao deixar de comprar agua mineral , qual o tempo para recuperar o valor investido na compra do purificador?

8 0

4 years ago

Look at pic plz help

jasenka [17]

Answer:

Mochi

Step-by-step explanation:

Mochi

Each week theres a increase of 4 in Mochi's weight. So you will add 4 twice to get to the 5th week.

4th week : 17

5th week : 21

Kappa

In 4 weeks Kappa weighed 14, which is less that Mochi at the pace Kappa is going at.

on the 3rd week Kappa weighed 11

and 2nd week Kappa weighed 5

and 1st week Kappa weighed 3

Looking at the graph, we can give a rough estimate on the 5th week it's going to be 16 or 17 either way making Mochi heavier.

8 0

3 years ago

An amount of R351 is made up with 114 coins (R2 coins and R5 coins only). How many R2 coins are there? How many R5 coin are ther

lisabon 2012 [21]

Answer:

Step-by-step explanation:

For this, you have to make two equations;

One that calculates the amount of coins

and one that calculates the amount of R

I'm going to set

R2 = x

R5 = y

To make this a bit easier to look at

So to do the number of coins, you want to do this:

x + y = 114

This is saying that the total amount of R2 coins plus the total amount of R5 coins will add up to 114

Then, you want to calculate the worth of them.

2(x) + 5(y) = 351

This is saying that for ever R2 coin there is, it will increase the total by 2, and every R5, it will increase the total by 5. When you add these together, it will come out to 351.

Then you have to solve the system of equations:

x + y = 114

2x + 5y = 351

-2 * (x + y = 114)

2x + 5y = 351

-2x + -2y = -228

2x + 5y = 351

3y = 123

y = 41

Since y is the amount of R5 coins, we know we have 41 R5 coins.

So the answer is

4 0

3 years ago