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dlinn [17]
3 years ago
7

The sum of five times a number and -6 is -2

Mathematics
2 answers:
k0ka [10]3 years ago
4 0
5n + (-6) = -2
add 6 to -2
5n = -2 + 6
5n = 4
divide both sides by 5
n = 4/5
spin [16.1K]3 years ago
3 0
Let' call the number 'M' for 'mystery number'.

The number . . . . .  M

Five times the number . . .  5 M

The sum of 5 times the number and  -6 . . .  5 M - 6

You said that's  -2 .  So I can write

                                         5 M - 6  =  -2

Add  6  to each side:      5 M       =   4

Divide each side by  5 :     M       =  4/5   or   0.8  .  
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What are the measures of angles 1 and 2?<br> m_1 =<br> m_2=
Stella [2.4K]

Answer:

m_1 = 50°

m_2= 130°

Step-by-step explanation:

m \angle \: 1 =  \frac{1}{2} ( 53 \degree +47 \degree ) \\  \\  \hspace{28pt} =   \frac{1}{2}  \times 100 \degree  \\  \\    \huge \purple{ m \angle \: 1= 50 \degree }\\    \\  \because \angle \: 1 \: and \:  \angle \: 2 \: are \: linear \: pair \:  \angle s\\ \therefore \:  m \angle \: 2= 180 \degree - m \angle \: 1 \\  \hspace{39 pt}= 180 \degree - 50 \degree  \\  \\  \huge \red{ m \angle \: 2= 130 \degree }

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3 years ago
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2 years ago
If a=mg-kv2/m,find,correct to the nearest whole number the value of v when a=2.8,m=12,g=9.8 and k=8/3
RUDIKE [14]

Answer:

The value of v is ± 22.729.

Step-by-step explanation:

Let be a=m\cdot g -\frac{k\cdot v^{2}}{m}, the variable v is now cleared:

\frac{k\cdot v^{2}}{m}=m\cdot g -a

k\cdot v^{2} = m^{2}\cdot g- m\cdot a

v^{2} = \frac{m^{2}\cdot g - m\cdot a}{k}

v =\pm \sqrt{\frac{m^{2}\cdot g-m\cdot a}{k} }

If a = 2.8, m=12, g = 9.8 and k = \frac{8}{3}, the value of v is:

v=\pm \sqrt{\frac{(12)^{2}\cdot (9.8)-(12)\cdot (2.8)}{\frac{8}{3} } }

v \approx \pm 22.729

The value of v is ± 22.729.

6 0
3 years ago
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igor_vitrenko [27]

Answer:

<em>m</em> = -2

General Formulas and Concepts:

Slope-Intercept Form: y = mx + b

m - slope

b - y-intercept

Step-by-step explanation:

<u>Step 1: Define function</u>

y = -2x + 5

<u>Step 2: Break function</u>

Slope <em>m</em> = -2

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2 years ago
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Step-by-step explanation:

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2 years ago
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