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umka21 [38]
3 years ago
10

How do you SOLVE SYSTEMS OF LINEAR EQUATIONS BY SUBSTITUTION!!!!!!

Mathematics
1 answer:
Digiron [165]3 years ago
6 0
Ex: y=2x+4     <span>3x+y=9   <--Simply plug y into the second equation here and solve for x. When you find the solution for x, you can plug the solution to x into the 2nd equation to find y....Hope this helps!!!</span>
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Pierre wants to make tables and chairs. He has a total of 220 wooden boards and 760 nails.
Sholpan [36]

Answer:

Pierre has enough boards and nails to make 9 tables and 5 chairs.

Step-by-step explanation:

7 0
3 years ago
I really need help!!!!ASAP!!!Will mark as brainest!!!(Feel free to explain how you got your answer! :)
faltersainse [42]

Answer:

A) Quincy should buy 22 rolls

B) 43 rolls

C) she needs to buy 19 rolls of ribbon.

Step-by-step explanation:

A)

yards of ribbon = 322

ribbon comes in rolls= 15

Quincy should buy  = 322/15 = 21.46

Quincy should buy 22 rolls

B)

Twice the length of 322 yards is 644 yards. If I divide 644 by 15, the answer is 42 r 14. Because there is a remainder, we need to round the quotient up to 43.

Alice needs to buy 43 rolls of ribbon.

C)

If we divide the total amount of ribbon, 285, by the amount of ribbon in each roll, 15, we get:

285 ÷ 15 = 19

So, she needs to buy 19 rolls of ribbon.

One possible combination could be:

10 rolls of yellow ribbon = 150 yards

5 rolls of red ribbon = 75 yards

4 rolls of blue ribbon = 60 yards

total of: 10+5+4=19 rolls

Since there are 15 yards of ribbon in each roll, the total amount of ribbon will  be:

15×19=285

So answer is correct

Thanks!

3 0
3 years ago
Can anyone find the value of x?​
igomit [66]

Answer:

88.16 units

Step-by-step explanation:

The line at the far left is also = x

For right triangles

   Tan (angle ) = opposite leg / adjacent leg

      for this triangle    tan 10 = x / 500    

                 rearrange to    x = 500 tan 10° = 88.16 units

7 0
2 years ago
HELP!! I WILL GIVE BRAINLIEST!!! PLEASE TIMED
Gnom [1K]

Answer:

i think its square a

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The sum of the lengths of any two sides of a triangle must be less than the length of the remaining side. True or false?
Pavlova-9 [17]

False. The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side.

6 0
3 years ago
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