Evaluate this expression: 39 ÷ (2 + 1) − 2 × (4 + 1).

Plsssss help meee!!!! Grade 4

Lady bird [3.3K]

Step-by-step explanation:

1. the total amount of pieces they have

2. cup noodle

3. mutiplication

4. four class

5. 9660

5 0

3 years ago

How many members have paid to go on the camping trip if the price per member

Ugo [173]

What was the price of each member and like the other person said add more context to the question

6 0

3 years ago

Read 2 more answers

Who was the first person to use the greek letter pi to represent the number pi in mathematics

dybincka [34]

Answer:

It was first done by William Jones in 1706

3 0

3 years ago

Find the distance between C(-5,4) and Q(2,0)

anastassius [24]

9514 1404 393

Answer:

√65 ≈ 8.06

Step-by-step explanation:

The distance formula is used for the purpose.

d = √((x2 -x1)² +(y2 -y1)²)

d = √((2 -(-5))² +(0 -4)²) = √(7² +(-4)²) = √(49 +16)

d = √65 ≈ 8.0622577

The distance between C and Q is √65, about 8.06 units.

7 0

3 years ago

A box contains 6 black pens, 4 blue pens, and 7 red pens. Without looking, Clarissa randomly picks a black pen out of the box. I

Irina18 [472]

Answer:

31.35%

Step-by-step explanation:

<h3>Initial reading:</h3>

In the box, there are:

6 Black pens
4 blue pens
7 red pens

Total number of pens in the box = 6 + 4 + 7

= 17

If we count pens as outcomes the total number of possible outcomes are 17.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

<h3>New reading:</h3>

Clarissa takes out a black pen from the box.

That reduces the number of black pens by 1 which increases the total number of pens by 1 as well.

So now:

Number of black pens = 6 - 1 = 5 
Total number of pens = 17 - 1 = 16

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

<h3>Probability:</h3>

$\boxed{ \mathsf{probability = \frac{favorable \: outcomes}{total \: outcomes} }}$

If we want her to pick up a black pen, and she ends up picking one. So, we can say that the outcome is in our favor.

That makes it,

the number of favorable outcomes = number of black pens

= 5

and total outcomes = Total number of pens

= 16

$\implies\mathsf{probability = \frac{5}{16} }$

For showing it as some percent we'll just multiply the fraction by 100

$\implies \mathsf{ \frac{5}{16} \times 100 }$

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

<h3>As a percent:</h3>

$\implies \mathsf{ \underline{ 31.25 \: \% } }$

4 0

3 years ago