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zzz [600]
2 years ago
12

Solve 7z + 4 - 5z > 8 + 12

Mathematics
2 answers:
german2 years ago
8 0

Answer:

z>8

.....................

kirill115 [55]2 years ago
4 0

Answer:

Step-by-step explanation: so first solve the zs  so add 7z and 5z and you get 12 so replace 7 with 12 and work it out from there

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The lengths of a triangle are 12 and 23 meters find the range of possible lengths for the third side
sergij07 [2.7K]

Answer: 11 < x < 35

suppose: the length of the third side is x

because x is the third side of a triangle

=> 23 - 12 < x < 23 + 12

⇔ 11 < x < 35

Step-by-step explanation:

6 0
2 years ago
What is the better deal work a restaurant a make 18 dollars per hour no tipping allowed or restaurant b 10.50 per hour and you a
Lyrx [107]

Answer:

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Step-by-step explanation:

6 0
3 years ago
What is the answer to number 8.
Viktor [21]

Its 20. |-2|+4-(-2)×(7). This simplifies to 2+4+(2×7)

4 0
3 years ago
What is the solution to the system of equations shown below?
Alexxandr [17]

Answer:

  b.  (1, 3, ­-2)

Step-by-step explanation:

A graphing calculator or scientific calculator can solve this system of equations for you, or you can use any of the usual methods: elimination, substitution, matrix methods, Cramer's rule.

It can also work well to try the offered choices in the given equations. Sometimes, it can work best to choose an equation other than the first one for this. The last equation here seems a good one for eliminating bad answers:

  a: -1 -5(1) +2(-4) = -14 ≠ -18

  b: 1 -5(3) +2(-2) = -18 . . . . potential choice

  c: 3 -5(8) +2(1) = -35 ≠ -18

  d: 2 -5(-3) +2(0) = 17 ≠ -18

This shows choice B as the only viable option. Further checking can be done to make sure that solution works in the other equations:

  2(1) +(3) -3(-2) = 11 . . . . choice B works in equation 1

  -(1) +2(3) +4(-2) = -3 . . . choice B works in equation 2

7 0
3 years ago
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NikAS [45]
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27 + 0.12x= 0.16x
27 = 0.04x

x = 67.5 minutes
4 0
3 years ago
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