All categories

3 years ago

How to solve 5(10 - 1) using order of operation

Mathematics

2 answers:

geniusboy [140]3 years ago

8 0

Answer:

Step-by-step explanation:

ZanzabumX [31]3 years ago

4 0

Answer: 45

Step-by-step explanation: Parentheses first.

10-1=9. Next is multiplication. 5(9)=45.

You might be interested in

Help me to find the missing lenth

algol [13]

The answer is 25

We can see the triangle is not to scale, and that the triangle on the right has measurements that equal 5 times as much as the one on the left.

So we do 5x5 to find the missing length and that is 25.

8 0

3 years ago

The age structure of a population is often represented by a pyramid. What does an age structure pyramid with a broad base and a

lapo4ka [179]

Answer:

The shape of the pyramid does not provide information on population growth

6 0

3 years ago

Circle A and circle B are congruent. CD is a cord of both circles. if AB = 24 inches in the radius is 13 inches how long is CD A

Nitella [24]

Option A

Length of CD is 10 inches

Solution:

The diagram is attached below

Given that, Circle A and circle B are congruent

CD is a cord of both circles

AB = 24 inches

Radius = 13 inches

To find: length of CD

Draw a straight line connecting A and C

AC represents the radius of circle. Also given that radius is 13 inches, So AC = 13 inches

Given in question that AB = 24 inches

Therefore from figure, AO = AB/2 = 24/2 = 12

AO = 12

Let "b" be the length of CO

Therefore, CD = CO + OD = b + b

AOC forms a triangle, so we can use pythogoras theorem

Pythagorean theorem, states that the square of the length of the hypotenuse is equal to the sum of squares of the lengths of other two sides of the right-angled triangle.

By above definition for triangle AOC

$AC^2 = AO^2 + OC^2$

Substituting AC = 13 and AO = 12 and OC = b

$13^2 = 12^2 + b^2\\\\b^2 = 169 - 144\\\\b^2 = 25\\\\b = 5$

Thus length of CD is:

CD = b + b = 5 + 5 = 10

Thus length of CD is 10 inches

8 0

4 years ago

8(4n + 3) = – 72 show your work

AfilCa [17]

Answer: n= −3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

8(4n+3)=−72

(8)(4n)+(8)(3)=−72(Distribute)

32n+24=−72

Step 2: Subtract 24 from both sides.

32n+24−24=−72−24

32n=−96

Step 3: Divide both sides by 32.

32n/32 = −96/32

n=−3

7 0

3 years ago

Read 2 more answers

I'm having trouble understanding tax rates in percentages. All I need is someone to break it down/simplify! Pls tell me the impo

olya-2409 [2.1K]

Answer: What percentages I don't see any

Step-by-step explanation:

3 0

3 years ago