All categories

3 years ago

Evalúa 9-b cuando b=8

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

8 0

Answer:

Solution,

b=8

Now,

9-b

=9-8

=1

Hope this helps...

Good luck on your assignment...

You might be interested in

20 POINTS PLEASE HELP ASAP!!!

Alika [10]

Answer: :(

Step-by-step explanation: you said 20

8 0

3 years ago

-16. What are the roots of (x - 4)(x + 1)(x +9)

sammy [17]

Answer:

4,-1,-9

Step-by-step explanation:

If you set the factorise to equal zero you can solve for the answer

5 0

3 years ago

1. An integer is 3 less than 5 times another. If the product of the two integers is 36, then find the integers.

melisa1 [442]

Answer:

3 and 12

Step-by-step explanation:

3*5=15 and 15-3=12. The product of 3 and 12 is 36.

5 0

3 years ago

Read 2 more answers

Exercise 10.10.2: Distributing a coin collection. About A man is distributing his coin collection with 35 coins to his five gran

11Alexandr11 [23.1K]

Answer:

Step-by-step explanation:

Given that:

all coins are same;

The same implies that the number of the non-negative integral solution of the equation:

$x_1+x_2+x_3+x_4+x_5 = 35$

$x_1 > 0 ; \ \ \ x_1 \ \varepsilon \ Z$

Thus, the number of the non-negative integral solution is:

$^{(35+3-1)}C_{5-1} = ^{39}C_4$

(b)

Here all coins are distinct.

So; the number of distribution appears to be an equal number of ways in arranging 35 different objects as well as 5 - 1 - 4 identical objects

i.e.

$= \dfrac{(35+4)!}{4!}$

$= \dfrac{39!}{4!}$

(c)

Here; provided that the coins are the same and each grandchild gets the same.

Then;

$x_1+x_2+x_3+x_4+x_5 = 35$

$x_1 > 0 ; \ \ \ x_1 \ \varepsilon \ Z$

$x_1=x_2=x_3=x_4=x_5$

$5x_1 = 35\\\\ x_1= \dfrac{35}{5} \\ \\ x_1= 7$

Thus, each child will get 7 coins

(d)

Here; we need to divide the 35 coins into 5 groups, this process will be followed by distributing the coin.

The number of ways to group them into 5 groups = $\dfrac{35!}{(7!)^55!}$

Now, distributing them, we have:

$\mathbf{\dfrac{35!}{(7!)^55!} \times 5!= \dfrac{35!}{(7!)^5}}$

3 0

2 years ago

Hank has a bottle of diluted syrup that is 60% maple syrup and a bottle of pure syrup that is 100% maple syrup in his restaurant

Nezavi [6.7K]

9514 1404 393

Answer:

62.5 oz of 100%

Step-by-step explanation:

Let p represent the number of ounces of pure syrup. Then (100-p) is the number of ounces of 60% syrup. The amount of maple syrup in the desired mix is ...

p +0.60(100 -p) = 0.85(100)

0.40p +60 = 85 . . . . . . . . . . . simplify

0.40p = 25 . . . . . . . . . . subtract 60

p = 62.5 . . . . . . . . . divide by 0.4

62.5 ounces of pure syrup should be mixed with the diluted syrup to make 100 ounces of 85% maple syrup.

_____

The other 37.5 ounces will be 60% syrup.

3 0

3 years ago