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BigorU [14]
3 years ago
9

there are x giraffes at the zoo the number of elephants is 4 less than three times the number of giraffes and there are more tha

n elephants
Mathematics
1 answer:
kykrilka [37]3 years ago
8 0
I need a bit more information to help
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Brainliest to correct !!!
dalvyx [7]

I’m not sure if I am correct ,

Informally, each hour of overtime is like 2.5 hours of regular time, so 8 hours of overtime is like 8*2.5 = 20 hours of regular time.

So her $1470 earnings are for 40+20 = 60 hours of work.

Her regular hourly wage is 1470$/60=24.5 dollars

40(x)+8(2.5x)=1470
40x+20x=1470
60x=1470
X=1470/60
X=24.5 dollars

Answer =24.5$
4 0
2 years ago
How do you calculate what percentage was spent
Triss [41]

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bit.^{}ly/3a8Nt8n

4 0
3 years ago
Before the clowns arrived, only 35% of the children wore happy faces. If 117 children did not wear happy faces, how many childre
denis-greek [22]

Answer:

180

Step-by-step explanation:

If 35% did not wear happy faces, then 100% -35% = 65% did wear happy faces.

Then we have ...

... 117 = 65% × (all children)

... 117/0.65 = all children = 180 . . . . . . divide by 65% = 65/100 = 0.65

There were 180 children in all.

4 0
3 years ago
What is the value of X? Make sure to show all of your work!
Artist 52 [7]
Since this is an equilateral traingle, as indicated with the marks on every side, you can set each equation equal to 60.

7x-3=60
7x=63
x=9
7 0
3 years ago
Which of the following options best describes the solution process and solution(s) for the quadratic equation? -2x2 + 3x + 4 = 7
Sophie [7]

Answer:

Step-by-step explanation:

If there are options, please share them.

Subtract 7 from both sides.  We obtain:  -2x^2 + 3x - 3.  The coefficients of this quadratic are a = -2, b = 3 and c = -3.  Thus, the discriminant is

b^2 - 4ac, or 3^2 - 4(-2)(-3), or 9 - 24, or -15.  Because the discriminant is negative, this quadratic has two complex roots which differ:

      -3 ± i√15

x = -----------------

             -4

3 0
3 years ago
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