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luda_lava [24]
3 years ago
10

What is -3 = z - 8 (solve the equation, check the solution)

Mathematics
1 answer:
laila [671]3 years ago
5 0

Answer:

z=5 :)

Step-by-step explanation:

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810 songs; 130% increase
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To do 130% increase you multiply by 1.3 so you do 810 × 1.3 = 1053
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How to solve Y=-1/3x+7
Vikki [24]

Answer:

x+3y=21 in standard form

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Help me pls with this question thank uuu
madam [21]

Let p be 2p and q be 3q. The ratio formed by this will be

\sf \: p = 2 \\  \sf \: q = 3 \\ \sf \: p : q = 2 : 3

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3 0
3 years ago
If the perimeter of this triangle is to be no more than 77 feet, write an inequality and
Sergio039 [100]

Given:

Consider the sides of the triangle are 4x+10, 2x-5 and 18 (in feet).

Perimeter of this triangle is to be no more than 77 feet.

To find:

The inequality and solution of the inequality.

Solution:

Perimeter of a triangle is the sum of all side.

Perimeter of given triangle =(4x+10)+(2x-5)+18

Perimeter of this triangle is to be no more than 77 feet. It means perimeter must be less than or equal to 77.

(4x+10)+(2x-5)+18\leq 77

(4x+2x)+(10-5+18)\leq 77

6x+23\leq 77

6x\leq 77-23

6x\leq 54

Divide both sides by 6.

x\leq \dfrac{54}{6}

x\leq 9

Therefore, the required inequality is (4x+10)+(2x-5)+18\leq 77 and the solution is x\leq 9.

8 0
3 years ago
What is the standard deviation of a normal distribution, whose mean is 35, in which an x-value of 23 has a z-score of -1.63?
Dvinal [7]

Answer:

7.36

Step-by-step explanation:

z-score is:

z = (x − μ) / σ

Given that z = -1.63, x = 23, and μ = 35:

-1.63 = (23 − 35) / σ

σ ≈ 7.36

6 0
3 years ago
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