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3 years ago

Round the nearest hundreds Place 52% of 210

Mathematics

2 answers:

statuscvo [17]3 years ago

8 0

Answer:

109.2

Step-by-step explanation:

% Off means multiply

52 % × 210

10,920

Change into decimal form , we get

109.2

Ket [755]3 years ago

4 0

Answer:

109.2

Step-by-step explanation:

Of means multiply

52% * 210

Change to decimal form

.52 * 210

109.2

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I need help please !

Yuki888 [10]

Answer:

36 tamales would cost $54

Step-by-step explanation:

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3 years ago

If D + E = 7, and 2D + 2E + 8J = 19, then what is J?

poizon [28]

Answer:

Technically, you'd have to solve that, I'm sorry.

Step-by-step explanation:

19/8 - d/4 - e/4

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3 years ago

Find the discriminant and determine the nature of the roots to the quadratic equation

Katen [24]

№17
$x^{2} +6x-7=0 \\ D=6 ^{2} -4*(-7)=36+28=64=8 ^{2} \\ \\ x_{1} = \frac{-6+8}{2} =1 \\ \\ x_{2} = \frac{-6-8}{2} =-7$
Answer: x₁ = 1
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№18
$2 x^{2} -3x+4=3 \\ 2 x^{2} -3x+4-3=0 \\ 2 x^{2} -3x+1=0 \\ \\ D= -3 ^{2} -4*2=9-8=1 \\ \\ x_{1} = \frac{3+1}{2*2} = \frac{4}{4} =1 \\ \\ x_{2} = \frac{3-1}{2*2} = \frac{2}{4} =0.5$
Answer: x₁ = 1
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№19
$2 x^{2} -4x-5=0 \\ D=-4 ^{2} -4*2*(-5)=16+40=56 \\ \\ x_{1}= \frac{4+ \sqrt{56} }{2*2} = \frac{4}{4} + \sqrt{ \frac{56}{16} } =1+ \sqrt{3.5} \\ \\ x_{2} = \frac{4- \sqrt{56} }{2*2} = \frac{4}{4} - \sqrt{ \frac{56}{16} } =1- \sqrt{3.5} 
$
Answer: x₁ = 1 + √3.5
     x₂ = 1 - √3.5

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4 years ago

How do you solve: 3/4n-18=1/4n-4

Lena [83]

1. You must subtract both sides by 1/4n to end up with 2/4n-18=-4

2.Then you add 18 to both sides to end up with 2/4n=14

3. Now you multiply both sides by 2/4 , aka 1/2 to get n by itself, and you will end up with n=7

n=7 is your answer!

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3 years ago

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Bond [772]

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