Help me i don't understand the problem

Answers

Answer 1

Answer: The question is asking you to find out what number is a fraction of something. For example, the problem on the top right is asking 35 is 50% (one half) of a number so what you have to do is multiply 35 times 2 and the answer is 70

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solve for x
3x+6<21

Answers

Answer:

x=5

Step-by-step explanation:

This one does not follow the correct rules in math but this is very helpful for "limited time" exams.

Transfer +6 to other side of the equation, converting the sign to opposite one making +6 to -6

−

Subtract

Divide it by the number with

Final answer

Answer: x = 6

Explanation:
3* 5+ 6 = 21
So it is not greater than 21, it’s the same as 21
But,
3* 6= 18 + 6 = 24
And
24>21

I don’t know the correct answer please

Answers

Answer:

x < -2

y > 1

Step-by-step explanation:

x < -3 + y

*x + y > -1

(-3 + y) + y > -1

-3 + 2y > -1

2y > -1 + 3

2y > 2

y > 1

*x < -3 + y

x < - 3 + (1)

x < -2

ABCD is a rectangle with AC=20 and AB=2BC. What is the area of rectangle ABCD?

Answers

$AC= 20 , \ AB=2BC \n\n Pythagorean\ theorem,\ we \ have : \n \n |AC|^2 = (2|BC|)^2+ |BC|^2 \n \n20^2 = 4|BC| ^2+ |BC|^2 \n \n400 =5|BC|^2\ \ /:5$

$|BC|^2=80 \n \n|BC|=√(80)=√(16\cdot 5)=4√(5)\n \n|AB|=2\cdot |BC| =2\cdot 4√(5)=8√(5)\n \nArea = |AB|\cdot |A|\n \nArea=8\cdot √(5)\cdot 4\cdot √(5)=32 \cdot 5 = 160 \n \n Answer : Area \ ABCD \ a \ rectangle = 160$

Let AB = 2x and BC be x.

By pythagoras theorum,

20² = x² + (2x)²

400 = x² + 4x²
400 = 5x²
80 = x²

x= √80 = 4√5 , thus, 2x = 8√5

Now, area = AB x AC

= 4√5 * 8√5

= 32 * 5

= 160

Thus, the area of rectangle ABCD is 160 units

What is 23/100 in simplest form as a fraction

Answers

It is already reduced as for it can not be simplified any longer.

The area of a trapezoid is 39 square millimeters. The height of the trapezoid is 6 millimeters. One of the base lengths of the trapezoidcis 5 millimeters. What is the length of the other base of the trapezoid?

Answers

the answers is really
8mm

The price of jeans was reduced $6 per week for 7 weeks. By how much did the price of the jeans change over the 7 weeks?

Answers

The price dropped by forty two dollars. We can work this out by simplymultiplying six, the number that we know the jeans were reduced by eachweek, by seven, the number of weeks that the jeans continued to reducein price for. Six times seven is of course forty two.

Answer:

The price dropped by $42.

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