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SSSSS [86.1K]
3 years ago
14

How do you solve 21/4=1/2x+3x and whats the answer?

Mathematics
1 answer:
aleksklad [387]3 years ago
3 0
I hope this helps you

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Danny answered 70 % questions correctly on his math test. if he answered 35 questions correctly, how man y were on the test
liraira [26]

Answer:

50 questions.

Step-by-step explanation:

70% - 35

100% - \frac{100}{70} × 35 = 50

6 0
3 years ago
I really need help with this question!
m_a_m_a [10]

Answer:

(s-6)/r

option D

Step-by-step explanation:

The slope-intercept form a line is y=mx+b where m is the slope and b is the y-intercept.

Compare y=mx+b and y=cx+6, we see that m=c and c is the slope.

Now we are also given that (r,s) is on our line which means s=c(r)+6.

We need to solve this for c to put c in terms of r and s as desired.

s=cr+6

Subtract 6 on both sides:

s-6=cr

Divide both sides by r:

(s-6)/r=c

The slope in terms of r and s is:

(s-6)/r.

6 0
3 years ago
−1/2(7z+4)+1/5(5z−15)
Tanya [424]

Answer:

Step-by-step explanation:

-7z/2 - 2 + z -3

=-5 - 5z/2

5 0
2 years ago
1) 28 + 3[{12 + 2 (14~4) = 5} - 6] 3​
nasty-shy [4]

Answer:

Step-by-step explanation:

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Soon you will determine the right triangle connection the pythagorean theorem
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I don't know I just need the points Lol sorry
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