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pantera1 [17]
3 years ago
8

HELP ME ASAP!!!!!!!!

Mathematics
1 answer:
Marina CMI [18]3 years ago
5 0

Answer:

Step-by-step explanation:

1) 30 : 100 = x : 299

x = (30 x 299)/100

x = 89,70 $

2) 299 - 89,70 = 209,30 $

3)  5 : 100 = x : 209,30

x = 10,465 $

209,30 + 10,465 = 219,77 $

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Which equation is equivalent to x2+10x+2=0 ?
Svet_ta [14]
<span> x =(10-√92)/2=5-√ 23 = 0.204 or </span><span><span>x =(10+√92)/2=5+√ 23 = 9.796 </span> </span>
4 0
3 years ago
What is the solution to the inequality 7&lt;=-3x-4
kipiarov [429]

Answer:

The nearest option is -3 (negative 3)

So, Option B is correct.

Step-by-step explanation:

We need to solve the inequality 7 \leq  -3x-4

Solving:

Step 1: Switching sides of inequality and reversing the inequality

-3x-4\geq 7

Step 2: Adding 4 on both sides

-3x-4+4\geq 7+4\\-3x\geq 11

Step 3: Dividing both sides by -3 and reversing the inequality

\frac{-3x}{-3}\leq \frac{11}{-3}  \\x\leq -3.6\\

The nearest option is -3 (negative 3)

So, Option B is correct.

4 0
3 years ago
PLSSSSSSSSSSSSSSSSSSSSSSSSSS ANSWER THIS
postnew [5]

Step-by-step explanation:

(a.y^{3} +3y^{2} -3 ) = (ay^{2} +(4a+3)y +4(4a+3))(y-4) +64a+45

so A = 64a +45

(2y^{3} -5y+a =(2y^{2} +8y +27)(y-4) +108 +a

so B = 108 +a

2A-B=0--> 2(64a+45)-108-a=0--> a =18/127

7 0
3 years ago
3x + 2y = 8. isolate y....... whats the answer ?
MatroZZZ [7]
<span>3x + 2y = 8

2y = 8 - 3x

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6 0
3 years ago
Factor this trinomial: x2−2x−24
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It’s (x-6)(x+4) so the first one and last one

5 0
3 years ago
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