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rusak2 [61]
3 years ago
14

Which of these strategies would eliminate a variable in the system of equations?

Mathematics
2 answers:
natali 33 [55]3 years ago
6 0

Answer:Multiply the top equation by -3 , then add the questions .

Step-by-step explanation:

Advocard [28]3 years ago
6 0

Answer:

Multiply the top equation by -3, then add the equations AND Multiply the bottom equation by -3/2, then add the equations

Step-by-step explanation:

khan academy said that's the answer

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Plz help me with this. It is a test
Tatiana [17]

Answer:

5 divided by 20= 1/4

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Samantha's parents are going to paint her room. Her color choices for the
Phantasy [73]

Answer:the answer will be 6/16

Step-by-step explanation:

3/8

4 0
3 years ago
4/7 divided by 1 3/4
poizon [28]

Answer:

16/49

Step-by-step explanation:

4/7 ÷ 1 3/4

Convert 1 3/4 into an improper fraction

4/7 ÷ 7/4

Find the reciprocal of 7/4 and multiply

4/7 * 4/7

16/49

Hope this helps :)

7 0
3 years ago
In converting 30 pounds to ounces, what unit (omit the number) would you
gladu [14]

Step-by-step explanation:

to convert pounds into ounces you'd

actually multiply 16 by 30:

30 * 16

you're doing this because if one pound equals 16 ounces, if you have 30 pounds then you must've had more ounces. therefore you'd multiply.

which is 480 pounds

Enjoy!

6 0
3 years ago
How do you solve 10(z-2)=1+4
tamaranim1 [39]

I'm assuming you want us to solve for the unknown variable z

10(z-2)=1+4

Combine like terms on the right side

10(z-2)=5

Use the distributive property on the left side

10z-20=5

Add both sides by 20 to cancel out the "-20" on the left side

10z=25

Divide both sides by 10

z=2.5

That is the value of the known variable, z, in this equation. Let me know if you need any clarifications, thanks!

~ Padoru

6 0
3 years ago
Read 2 more answers
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