Which two numbers add up to 8 and multiply to negative 9?

Answers

Answer 1

Answer:
facotr -9
add factors
-1+9=8
correct

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The NYC Parks Department is designing a rectangular athletic field for a new park in Brooklyn. The width of the field needs to be 10 feet shorter than the length, and the perimeter of the field needs to be 80 feet. What is the length of the new field?

Answers

Answer:

Length = 25feets

Step-by-step explanation:

Let the length l = x

Width w = x - 10

Perimeter = 80

And Perimeter = 2(l + w)

:- 80 = 2{x + (x - 10)}

80 = 2{x + x - 10}

80 = 2(2x - 10)

80 = 4x - 20

4x = 80 + 20

4x = 100

x = 100/4

x = 25ft

If 18 is 45% of a value, what is that value

Answers

45% of 40 =18 so the answer would be 40.

Why is 0.04 is 1/10 of 0.4

Answers

is in mathematics means the equal sign
of in mathematics means multiplication

So translating that sentence into an algebraic expression, it would be:

0.04 = 1/10 x 0.4

And that statement is true! Because when you divide a number by 10, you move the decimal over to the left one time.

The figure below is made of two identical triangular prisms. What is the volume of the figure?

Answers

Answer:

300 in³

Step-by-step explanation:

The volume (V) of a triangular prism is

V = Al ( A is the area of the triangular face and l is the length )

A = $(1)/(2)$ bh ( b is the base and h the height )

Here b = 5 and h = 6 , thus

A = $(1)/(2)$ × 5 × 6 = 15 in², so

V = 15 × 10 = 150 in³

Since the triangular prisms are identical, then volume of figure is

V = 2 × 150 in³ = 300 in³

300 in^3

This answer isn’t mine sorry

in a survey, 27% of people chose salads over a meat dish. In all, 81 people chose salads. How many people were in the survey?

Answers

Number of people that chose salad = 81
Percentage of people that chose salad over meat dish = 27%
Let us assume the number of people on the survey = x
Then
27% * x = 81
(27/100) * x = 81
27x = 81 * 100
27x = 8100
x = 8100/27
= 300
So a total of 300 people participated in the survey.I hope the procedure is clear enough for you to understand. Based on this method you can always solve similar types of problems without requiring any kind of help from outside.

Answer:

300

Step-by-step explanation:

27 is to 100 as 81 is to 300

Ashley, Jake, and Angelina shared $1080 in the ratio of 1:3:5. How much money do each of them have?

Answers

Okay... so in this problem, the three people are splitting the money into 9 parts. Simply add the numbers in the ratio to find how many parts they are splitting their money into. Now, divide 1080 by 9... 120.
Now you can look back at the ratio. Ashley had 1 part, so he had 1x120, or just $120, Jake had 3 parts, so 3x120 = $360, and Angelina had 5 parts, so 5x120 = $600.
To check, we'll add up those numbers. 120+360+600= $1080! Congrats!
Hope this helps!
-A

Food us food. Food is good. Food is always my mood. Even if im on a monthly cycle. Yeah i love riding bicycles

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