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3 years ago

!!!! I'LL GIVE BRAINLIEST !!!! PLS HELP THIS IS A TEST

Mathematics

1 answer:

kirza4 [7]3 years ago

8 0

Answer:

yes,this is congruent by SAS criteria

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15. John works for the local used car dealership. His weekly salary is $375 plus a commission based on the number of cars that h

ratelena [41]

Answer:

S = 935 when t ≤ 7

S = (180t - 325) when t > 7

Step-by-step explanation:

John's weekly salary = $375 + commission on number of cars he sell

Commission for the first seven cars sold = $80 per car

Commission above 7 cars = $180 per car

If John sells t cars each week then commission earned by John

= 80×7 + 180(t - 7)

So the salary for week = 375 + commission

S = 375 + 560 + 180(t - 7)

S = 935 + 180(t - 7)

S = 935 when t ≤ 7

(180t - 325) when t > 7

3 0

4 years ago

The volume of a fish tank is 30 ft.³ if the Density is 0.3 how many fishes are in the tank

marta [7]

The answer is 9 fish.

The density (d) is the number of units(n) per volume (V):
d = n/V We know: d = 0.3 fish/ft³. V = 30 ft³ n = ? d = n/V n = d * V n = 0.3 fish/ft³ * 30 ft³ n = 9 fish

5 0

3 years ago

How do you write.09 in words?

hichkok12 [17]

Answer:

zero point 9

0 and nine tenths

Step-by-step explanation:

4 0

3 years ago

X^2-8x+16=5 what are the solutions?

svp [43]

Hey!

The first step to solving this equation would be to subtract 5 from both sides of the equation.

Original Equation :
$x^{2}$ - 8x + 16 = 5

New Equation {Added Subtract 5 to Both Sides} :
$x^{2}$ - 8x + 16 - 5 = 5 - 5

Now we solve our new equation.

Old Equation :
$x^{2}$ - 8x + 16 - 5 = 5 - 5

Solution {Old Equation Solved} :
$x^{2}$ - 8x + 11 = 0

The next step would be to solve with the quadratic formula.

Quadratic Equation ( 1 ) :
$x = \frac{-(-8) + \sqrt{(-8)^{2} -4 * 1 * 11 } }{2*1}$

Quadratic Equation ( 1 ) {Solved} :
4 + $\sqrt{5}$

Quadratic Equation ( 2 ) :
$x = \frac{-(-8) - \sqrt{(-8)^{2}-4 *1*11 } }{2*1}$

Quadratic Equation ( 2 ) {Solved} :
4 - $\sqrt{5}$

So, our final solutions for the equation $x^{2}$ - 8x + 16 = 5 are...

x = 4 + $\sqrt{5}$

and 

x = 4 - $\sqrt{5}$

Hope this helps!

- Lindsey Frazier ♥

5 0

3 years ago

Need help with my homework

Vladimir79 [104]

So its ($5.50 ×2)+(2.50×2) and the answer is16

5 0

3 years ago

Read 2 more answers