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Katarina [22]
3 years ago
5

Pedro simplified 4/7 * 8/5 ; his work is shown below. Identify where he made his error. Original division problem: 4/7 * 8/5 Ste

p 1: 4/7 * 8/5 Step 2: 4*5/7*8 Step 3: 20/56 Step 4: 5/14
Mathematics
2 answers:
WITCHER [35]3 years ago
7 0

Answer:

The second answer :)

scoray [572]3 years ago
4 0
I am not sure but I would say either step 2 or 4 but I am not 100% sure I hope you do well. Good Luck:) 
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Does anyone know how to solve this? If so pls let me know
Andre45 [30]
Yes the value of X is 12.53 :)

Pythagorean theorem.

11•11=121+6•6=36=157
The square root of 157=12.53
5 0
3 years ago
PLEASE HURRY!!! AB = 20 cm, m∠A = 30° , and $m∠C = 45° . Express the number of centimeters in the length of BC in simplest radic
MrRissso [65]
Using the Sine Rule:-

20 /sin 45 =  BC / sin 30

BC = 20 sin 30 / sin45

  = 20 * 1/2  /  1 / sqrt2
  = 20 * 1/2 * sqrt2
=  10 sqrt2   answer
3 0
3 years ago
Mike pays $20 per hour for algebra tutoring. The equation y = 20x relates the cost of tutoring (y) to the number of hours (x) he
kotykmax [81]

The unit rate in the equation is 20.

Option C) is the correct answer.

<u>Step-by-step explanation</u>:

Step 1 :

In the given equation y = 20x

where,

x ⇒ total number of hours for tutoring

20 ⇒  the cost per hour of tutoring

y ⇒ the total cost for total hours of tutoring

Step 2 :

Unit rate refers to the value per hour.

Here, the cost for 1 hour of tutoring is $20.

∴ The unit rate is $20 per hour of tutoring.

8 0
4 years ago
Greatest common factor of 3 in 10
Mariana [72]
The greatest common factor of 3 and 10 is 30,because 3x10= 30, and 10x3=30.

Hope this helped.
4 0
3 years ago
After a 35% discount, a book costs $11.21, what is the normal<br> undiscounted price of the book?
9966 [12]

Answer:

The normal undiscounted price of the book is $17.25.

Step-by-step explanation:

This question can be solved using a rule of three.

After a 35% discount, a book costs $11.21

This means that $11.21 is 100-35 = 65% = 0.65 of the original price x.

How much is x, which is 100% = 1?

$11.21 - 0.65

$x - 1

0.65x = 11.21

x = \frac{11.21}{0.65}

x = 17.25

The normal undiscounted price of the book is $17.25.

5 0
4 years ago
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