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2 years ago

1. Solve 16+14÷2+3⋅5−11

Mathematics

1 answer:

tiny-mole [99]2 years ago

6 0

Answer:

1. 27

2.6

Step-by-step explanation:

remember the priorities of operations :

1. brackets

2. exponents

3. multiplications and divisions

4. (and truly last) additions and subtractions

so,

16 + 14÷2 + 3×5 - 11 =

16 + 7 + 15 - 11 = 23 + 4 = 27

5 coins are tossed at the same time.

each coin has a result (head or tail).

but the observed event is the sum of all tails that show when tossing the 5 coins.

so, the possible outcomes are

0 tails

1 ...

2 ...

3 ...

4 ...

5 tails

so, in total, 6 different possible outcomes.

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Una recta con pendiente -2 ´pasa por el punto P(5, -1). La abscisa del punto Q que está en esa recta es 1. Encuentre la ordenada

oksian1 [2.3K]

Answer:

La ordenada de Q es 7.

Step-by-step explanation:

La ecuación de una recta es:

y = a*x + b

donde a es la pendiente y b es la ordenada al origen.

Para este problema, sabemos que la pendiente es -2

Entonces:

a = -2

y = -2*x + b

También sabemos que esta recta pasa por el punto (5, -1)

Esto significa que cuando evaluamos la ecuación en x = 5, y toma el valor y = -1

Si reemplazamos esos valores en la ecuación, obtenemos:

-1 = -2*5 + b

-1 = -10 + b

-1 + 10 = b

9 = b

Entonces la ecuación de la recta es:

y = -2*x + 9

Sabemos que el punto Q está en la línea, y la abscisa de este punto es 1.

Entonces este punto es Q (1, k)

donde k es la ordenada de este punto.

Porque nuestra línea también pasa por este punto, podemos concluir que cuando x = 1, y = k

Reemplazando eso en la ecuación tenemos:

k = -2*1 + 9 = -2 + 9 = 7

k = 7

La ordenada de Q es 7.

7 0

3 years ago

Please help! I will mark brainliest!! :)

Mekhanik [1.2K]

Answer:

The possibility it is red is 0%

Step-by-step explanation:

Because there are no red marbles

6 0

3 years ago

Solve. −35x+15>720 Drag and drop a number or symbol into each box to show the solution.

vampirchik [111]

Answer:

The solution of the inequality - 35x + 15 > 720 is $x$

Step-by-step explanation:

Consider the given inequality

- 35x + 15 > 720

Subtract both side by 15 , we get

- 35x + 15 - 15 > 720 - 15

- 35x > 705

Multiply both sides by -1 (Reverse the inequality )

(-35x)(-1) < 705 (-1)

35x < -705

Now, divide both side by 35

$\frac{35x}{35}=\frac{-705}{35}$

$\Rightarrow x=\frac{-141}{7}$

Thus, the solution of the inequality - 35x + 15 > 720 is $x$

6 0

3 years ago

Hannah is saving money for a car. She earns $160 each week working part time after school and on the weekends at Papa's Pizza. H

Yuliya22 [10]

From the problem we know that Hanna saves one-half of her paycheck each week, so she saves $( \frac{1}{2})(160)= \frac{160}{2} =80$ . Also, we know that her parents put $50 in her savings account each week, so the total amount she and her parents put in her saving's account is $80+50=130$ .
Since we know that Hanna currently has <span>$1,280 in her saving's account and each week she and her parents deposit $130 to the account, with </span> $n$ representing the number of weeks, we can model the situation as follows:
$f(n)=1280+130n$

3 0

4 years ago

Read 2 more answers

The angles listed from largest to smallest are __________________

photoshop1234 [79]

Answer:

B, A, C

Step-by-step explanation:

That's a 30-60-90 triangle.

7 0

3 years ago