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cricket20 [7]
3 years ago
8

I need the answer and how u solved it

Mathematics
1 answer:
zysi [14]3 years ago
5 0

Answer:

$1,920.00

Step-by-step explanation:

12,800 x 15%=1,920.00

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45% of 20 is what I need help and I need u to explain it please thank u
lora16 [44]
45% of 20
20  times 0.45
= 9 
The answer is 9
5 0
3 years ago
Use the discriminant to determine how many real number solutions exist for the quadratic equations -4j+3j-28=0
aleksandr82 [10.1K]
<span>the correct equation is
- 4j² + 3j - 28 =0

 ax² + bx + c,
 a = -4, b=3  c =- 28.
The discriminent D = b² - 4.a.cD = 3² - 4(-4)(-28)D = -439 
If D ≥ 0 there are either 2 roots or one double if = 0)if D< 0, there are no real roots (but 2 imaginary roots)Since D < 0, then there is no real roots
 The answer there is no real roots</span>
8 0
4 years ago
Find the value of x.<br> I Need to show the equations please, and show my work
defon

Answer:

15

Step-by-step explanation:

since both equations are set with a right angle, the equation must be equal to 90 degrees. So you set the equation as

13+x+4x+2=90

add the x variables together and the constants separately

15+5x=90

then subtract 15 from both sides.

15+5x=90

-15      -15

5x=75

then divide 5 from both sides.

75/5= 15

so x is 15 :).

6 0
3 years ago
Read 2 more answers
One, no, or infinitely many solutions
rusak2 [61]

Answer:

Only one solution

Step-by-step explanation:

Given:

2c + 4 - 3c = -9 + c + 5

Find:

Number of solution

Computation:

2c + 4 - 3c = -9 + c + 5

-c + 4 = -4 + c

-2c = -8

c = 4

Only one solution

6 0
3 years ago
Pls I need help on this one
OlgaM077 [116]

Answer:

1.5 for half a batch and 1 and 0.16666666.. batch

Step-by-step explanation:

3 cups=1 batch so 3/2= 1.5 cups=1/2 batch

4 cups=1 and .1666 batches

5 0
3 years ago
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