3 years ago

The sum of eight times a number and seven is twice the number

Mathematics

1 answer:

Dovator [93]3 years ago

8 0

8x7=56

i hope this helps

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20-10 write four equivalent expressions

igor_vitrenko [27]

Here's two. I can't think of any more.

20/10
20-(-10)

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3 years ago

Copy and fill in the charts.

Eduardwww [97]

Answer:

15% = 3/20 = 0.15

1.25 =125% =5/4

12 3/8 = 12.375 = 1237.5%

Step-by-step explanation:

15% to fraction , then decimal ;

$15\% = \frac{15}{100} \\Cross\:cancel\:common\:factor ; 5\\\\15\div 5 = 3\\100\div 5 = 20\\\\= \frac{3}{20}\\\\\frac{3}{20} = 0.15$

1.25 to fraction , then percentage

$1.25 = \frac{1.25}{1} \times \frac{100}{100} \\\\1.25\times 100 =125\\1\times 100 = 100\\\\= \frac{125}{100} \\= \frac{5}{4} \\\\1.25\times 100\\= 125\%$

12 3/8 to decimal then percentage

$12\frac{3}{8} =\frac{99}{8} = 12.375\\\\12.375\times 100\\\\= 1237.5\%$

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3 years ago

Line JK passes through points J(-4,-5) and K(-6, 3). If the equation of the line is written in slope-intercept form, y = mx + b,

Scilla [17]

Answer:

Line JK passes through points J(-4,-5) and K(-6, 3).

Line JK has form of y = mx + b

=> -5 = -4m + b

=> 3 = -6m + b

Subtract 2nd equation from 1st equation:

=> -8 = 2m

=> m = -4

Substitute back m = -4 into 1st equation:

=> -5 = -4(-4) + b

=> b = -21

Hope this helps!

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3 years ago

He wants to earn 481$ By mowing lawns and he charge $22 for each long what is the maximum number of lungs that he needs to mow t

Reika [66]

$\stackrel{\stackrel{total~amount}{goal}}{481}~~ = ~~22(lawn)\implies \cfrac{481}{22}=lawn\implies \stackrel{rounded}{22}\approx lawn$

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1 year ago

What's a number between 67 and 113 that is a multiple of 3,4 and 9

Pachacha [2.7K]

72 is a number between 67 and 113 that is a multiple of 3, 4, and 9.

72/3= 24

72/4= 18

72/9= 8

7 0

3 years ago