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sleet_krkn [62]
3 years ago
7

Please some help me!!!

Mathematics
1 answer:
DiKsa [7]3 years ago
6 0
The mistake that was made is that she should of multiplied the fractions by the exponents first 
You might be interested in
2 1/4 r= 10<br> A. r = 4 1/3<br> B. r = 4 2/5<br> C. r = 4 4/9
max2010maxim [7]
Here, 2 1/4 r = 10
9/4 r = 10
r = 10*4 /9
r = 40 / 9
r = 4 4/9

In short, Your Answer would be Option C

Hope this helps!
8 0
3 years ago
A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as ed
Travka [436]
Suppose x books are produced by both methods.
Total cost for method 1 = 60346 + 10.5x
Total cost for method 2 = 18682 + 21x

Cost of method 1 = Cost of method 2
60346 + 10.5x = 18682 + 21x
60346 - 18682 = 21x - 10.5x
41664 = 10.5x
x = 41664/10.5
x = 3968

For 3968 books produced the cost by both methods will be the same.
5 0
3 years ago
Read 2 more answers
What steps would you follow in order to solve the equation?
Ira Lisetskai [31]

Answer:

<h2>128</h2>

Step-by-step explanation:

Step one:

given the expression w/8 - 4 = 20

the first operation is to isolate the term that has w by adding 4 to both sides

w/8 - 4+4 = 20+4

w/8 = 16

Required

the value of w

Step two:

the next step is to cross multiply

w=16*8

w=128

6 0
2 years ago
Original price 89.00 mark down 33%
denpristay [2]

You will mark down the product $29.37. So it would be 89.00-29.37=59.63

5 0
3 years ago
The sum of 3 numbers is 15. two times the smallest is 1 less than the largest, while the sum of the largest and smallest is 10.
GalinKa [24]
Let x = smallest number 
      y = middle number 
      z = largest number 
Equations:
sum of 3 numbers: x + y + z = 15
two times smallest is 1 less than largest: 2x = z - 1
sum of largest and smallest is 10: z + x = 10

z + x = 10 can be solved for z ⇒ z = 10 - x
substitute into 2x = z - 1 ⇒ 2x = 10 - x - 1
                                           3x = 9
                                             x = 3 (divided both sides of equation by 3)
Since z + x = 10 ⇒ z + 3 = 10 ⇒ z = 7
Substitute values for x and z into x + y + z = 15 ⇒ 3 + y + 7 = 15
                                                                                y + 10 = 15
                                                                                y = 5
answer: 3, 5, 7
7 0
3 years ago
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