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zvonat [6]
3 years ago
5

7. In which step does a mistake first occur?

Mathematics
2 answers:
BartSMP [9]3 years ago
8 0

Answer:

8+2+

Step-by-step explanation:

dmitriy555 [2]3 years ago
6 0
PEMDAS is an acronym for the order of operations. Parentheses, exponents, multiplication, division, addition, subtraction.

For question 7:
8 + 2 + (3 x 3 -2)
I believe the mistake is in step 1. I believe it should be:
8 + 2 + (9 -2)

We go by order of operations from left to right.

For question 8, the mistake is in step 1. They divided 24 by 3 instead of adding. It should be:
(27 + 10) - 14 + 2
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At Elisa's Printing Company LLC there are two kinds of printing press: Model A which can print 70 books per day and Model B whic
NeX [460]

Answer:

Number of Model A press = 9 and Number of Model B press = 5

Step-by-step explanation:

Number of books Model A can print per day = 70

Number of books Model B can print per day = 55

Let x be the number of Model A press and y be that of Model B press.

Total number of printing presses = 14

x + y = 14  ----------------1

Total number of books printed per day = 905

70x + 55y = 905-------2

Putting y = 14 - x in equation 2, we get:

70x + 55(14 - x) = 905

15x = 135

x = 9

y = 14 - 9 = 5

Hence number of Model A press is 9 and that of Model B press is 5.

8 0
3 years ago
this year, 450 students are graduating from big lakes high school. of the graduates, 68% plan to got to collage next year, and 1
satela [25.4K]
54 students do not know what they're going to do after graduating
7 0
3 years ago
The sum of two consecutive intergers is -29. list tge number from smallest to largest
yawa3891 [41]

Hello from MrBillDoesMath!

Answer:

-15, -14


Discussion:

Let "n" be the first of the two consecutive integers . Per the Question

n + (n+1) = -29  =>

n + n + 1 = -29 =>

2n +1 = -29 =>

2n = -29 -1 =>

2n = -30 =>

n = -15,

Hence n = -15 and n+1 = -15 +1 = -14


Thank you,

MrB

6 0
3 years ago
Which of the following is not a function?
Evgesh-ka [11]

Answer:

option d.

{(1,3),(4,2),(2,0),(3,4)}

5 0
3 years ago
Round 8 5/6 to the nearest whole number
kiruha [24]

Answer:

9

Step-by-step explanation:

8 5/6

5/6 is close to 1 so it will round up

8+1 = 9

8 5/6 rounds to 9

5 0
3 years ago
Read 2 more answers
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