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notsponge [240]
3 years ago
15

GUYS I CAN'T GAIN ANYMORE POINTS BECAUSE I NEED TWO BRAINLIESTS. I CAN HELP YOU WITH QUESTIONS IF YOU WANT BUT I REALLY NEED BRA

INLIESTS, I HAVE VERY FEW POINTS LEFT. PLEASE BE KIND :)
Mathematics
2 answers:
Burka [1]3 years ago
6 0

Answer:

Step-by-step explanation:

ok can I have help

oksian1 [2.3K]3 years ago
4 0

Answer:

ith a Ok if you help me wquestion ill give you brainliest but i have to post it but let me know when youre ready, just go to my profile and go to my questions and wait for me to post it

Step-by-step explanation:

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I need to know how to do Solving Systems of Equations by Elimination
vredina [299]
The point of elimination is to have one variable so example

3x + 2y = 4

7X + 3y = 5


1) Try to find a way to have one variable

7(3x + 2y = 4) ----> 21x + 14y = 28

-3(7x+ 3y = 5) -----> -21x -9y = -15


2) add

0 + 5y = 13

3) solve for the last variable

5y = 13
y = 13/5 = 2 3/5 = 2.8

4) Subsitute the variable to get the other one

3x + 2(2.8) = 4

3x + 5.6 = 4

3x = -1.6

x = 0.533333333 (continue)

The intersection would be 0.53 with a line above the 3 and 2.8. (0.5333 , 2.8)

Hope you understand!!
6 0
3 years ago
In a toy​ store, the ratio of the number of teddy bears to the number of dolls is 7:5. If the store has 140 teddy bears​, how ma
LiRa [457]

Answer:

there would be 100

Step-by-step explanation:

140:100=70:50=7:5

7 0
3 years ago
Read 2 more answers
5 > Chapter 2: Modeling with Quadratic Functions > Secti
Nitella [24]

Answer:

the awnser is 2,0

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Find the midpoint of the line segment joining the points r(1,4) s(-3,7)
skad [1K]
Formula for mid point.
(x1/2+x2/2 , y1/2+ y2/2)

Mid point=
(1/2+ (-3)/2 , 4/2+ 7/2)
(-2/2 , 11/2)
(-1, 5.5)
5 0
3 years ago
Read 2 more answers
Andrea is shopping for items for her pet sitting business because the store is having a sale where everything in the store
frutty [35]

Answer:

the answer is the first one

Step-by-step explanation:

39.99 rounded up is 40.00

19.99 rounded up is 20.00

40.00*0.05 = 2, 40-2 = 38

20.00*0.15 = 3, 20-3 = 17*.05 = 0.85, 17-0.85 = 16.15

38+16.15 = 54.15

5 0
3 years ago
Read 2 more answers
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