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snow_tiger [21]
3 years ago
6

Mr johnson sells erasers for $3 each he sols 96 erasers last week and he sold 204erasers this week about how much money did he m

ake this week
Mathematics
1 answer:
Marat540 [252]3 years ago
7 0
This week he made $612, if it wants both weeks he made $900.
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Solve the equation.<br> 3x^2+4x+5=0
Daniel [21]

<em>Use the Quadratic Formula </em>

x = -4 + 2 √11i/6, -4 - 2√11i/6

<em>Simplify solutions </em>

x = - 2 - √11i/3, - 2 + √11i/3

5 0
3 years ago
Consider the following pair of equations:
Aloiza [94]
Y = 3x + 3 this is equation 1
y = x -1 this is equation 2
since equation 1 and 2 already defined y in terms of x, we're just gonna substitute y into the other equation. as 2 is shorter I'm going with that today
x - 1 = 3x +3
-1 - 3 = 3x - x
-4 = 2x
x = -2
now we've got x just sub it in equation 2
y = -2 -1
y = -3
so the answer is (-2,-3)

5 0
3 years ago
True or false , all numbers are integers
Anni [7]
False, an integer is positive and negative numbers that are including zero and counting numbers

integers are like, -4,-3,-2,-1,0,1,2,3,4,5...
but not including
2/3
0.3
pi

false
6 0
3 years ago
Read 2 more answers
What is the range of the function f(x) = sqrt x+3   – 7?
anyanavicka [17]

The values produced by the function

f(x)=\sqrt{x+3}-7

will not be any lower than -7, but may be that low when x=-3.

That is, the range is

... f(x) ≥ -7 . . . . matches the 1st selection

7 0
3 years ago
Read 2 more answers
the perimeter of a rectangle is 192 ft. the ratio of its length to its width is 7:5 what are dimensions of the rectangle?
Jobisdone [24]

Answer:  Hence the dimensions are 56 ft and 40 ft.

Step-by-step explanation:

Alright, lets get started.

The ratio of sides of rectangle is given as 7:5.

It means, the length of rectangle is : 7x

It means, the width of rectangle is : 5x

So the perimeter of rectangle will be : 2(length + width)

Plugging the value of sides length and width,

the perimeter of rectangle will be : 2\times(7x+5x)

the perimeter of rectangle will be : 2\times 12x

the perimeter of rectangle will be : 24x

As per question, the given perimeter is 192, so

24x=192

Dividing 24 in both sides,

x=\frac{192}{24}

x=8

Hence the length of rectangle will be : 7\times 8 =56

Hence the width of rectangle will be : 5\times 8 =40

Hence the dimensions are 56 ft and 40 ft.  :   Answer

Hope it will help :)

6 0
3 years ago
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