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bagirrra123 [75]
3 years ago
9

Help me pleasee I need to turn it in tonightt

Mathematics
2 answers:
AveGali [126]3 years ago
7 0
Student 1 and student 3 are equivalent
Talja [164]3 years ago
3 0

Answer:

A. Students 1 and 3

Step-by-step explanation:

Student 3's equation is -5r + 3s - 1

Student 1's equation is -(5r - 3s + 1)

We distribute the negative like this: -5r + 3s - 1, which is the same as student 1.

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Marcia made spiral books to sell at her local craft fair. She forgot to count how many she made before the fair. She knows that
Alex787 [66]

Answer:

B) 0.60n+1.48n = 176.80

Step-by-step explanation:

0.60 for every spiral wire per book = 0.60*n

0.74 per chipboard cover, 2 needed for each book = 1.48 per book = 1.48*n

Put it together: 0.60n+1.48n = 176.80

5 0
2 years ago
3 times a number xx, subtracted from 1818, is less than -90.?90. Write an inequality for the statement above. Find the solution
Evgen [1.6K]

Answer:

The solution set is: x>36

Step-by-step explanation:

We are given that we have to subtract 3 times of some number 'x' from 18 such that the resulting equation is less than -90.

this means that : 18-3x<-90

on solving the inequality by adding 3x on both side and adding 90 on both side we get that

 108<3x

now on dividing both side by 3 we get that

x>36

Hence our solution set is: x>36


5 0
3 years ago
Read 2 more answers
Twice the quotient of a number and -24 is -8 Find the number.<br><br> The number is ________.
Klio2033 [76]

Answer: The number should be 6

4 0
2 years ago
Solve y=3x-4 and y=2/5x 9
mojhsa [17]
I need the sign between the (2/5)x and the 9
5 0
3 years ago
Mom and Dad have four daughters, and each daughter has one brother. How many people are in the family?
klemol [59]
I would would say 7.

Mom + Dad + daughter + daughter + daughter + daughter + plus one brother = 7

Since they are all sisters and it says each one has one brother I think that would mean 7. That's just my comprehension of the question, though I may 100% wrong.
7 0
3 years ago
Read 2 more answers
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