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3 years ago

10•1/2+(-6)(-3) Simplified in steps

Mathematics

1 answer:

dangina [55]3 years ago

7 0

Answer:

Step-by-step explanation:

1) (10*0.5)+(-6*-3)

2) (5)+(18) (The 18 isn't negative because of the rule that states "A negative and a negative will become positive"

3) 5+18=23

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The following two-way table describes student's after school activites. Find the probability that a randomly selected student is

stiv31 [10]

The probability that a randomly selected student is in music/drama is 25%

<h3>How to determine the probability?</h3>

From the table, we have the following values

Music/Drama = 7 + 13 + 5 = 25

Total = (20 + 20 + 25 + 7 + 13 + 5 + 3 + 2 + 5) = 100

The probability is then calculated as:
P = Music/Drama / Total

So, we have:

P = 25/100

Express as percentage

P = 25%

Hence, the probability that a randomly selected student is in music/drama is 25%

Read more about probability at:

brainly.com/question/251701

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2 years ago

$6x + $15 ≤ $70<br><br><br> I have no idea- xd

Delvig [45]

Answer:

x = 9

Step-by-step explanation:

6 × 9 = 54

54 + 15 = 69, which is less than 70.

3 0

3 years ago

Brenda and Michael simplify the expression, as shown below.

prisoha [69]

It looks like Brenda did since Michael forgot to take out the parenthesis<span />

7 0

3 years ago

Read 2 more answers

What number is the opposite of 54 ?

Vsevolod [243]

Answer: -54

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The height of a trapezoid is 6 in. and it’s area is 72 in to the 2nd power. One base of the trapezoid is 6 inches longer than th

Vitek1552 [10]

Given:

The height of the given trapezoid = 6 in

The area of the trapezoid = 72 in²

Also given, one base of the trapezoid is 6 inches longer than the other base

To find the lengths of the bases.

Formula

The area of the trapezoid is

$A=\frac{1}{2} (b_{1} +b_{2} )h$

where, h be the height of the trapezoid

$b_{1}$ be the shorter base

$b_{2}$ be the longer base

As per the given problem,

$b_{2}=b_{1} +6$

Now,

Putting, A=72, $b_{2}=b_{1}+6$ and h=6 we get,

$\frac{1}{2} (b_{1} +b_{1}+6)(6) = 72$

or, $b_{1}+b_{1}+6 = \frac{(72)(2)}{6}$

or, $2b_{1}+6 = 24$

or, $2b_{1}=24-6$

or, $b_{1}= \frac{18}{2}$

or, $b_{1}=9$

So,

The shorter base is 9 in and the other base is = (6+9) = 15 in

Hence,

One base is 9 inches for one of the bases and 15 inches for the other base.

5 0

3 years ago