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zubka84 [21]
3 years ago
8

Pls help i need 5he ans to this question

Mathematics
1 answer:
Karolina [17]3 years ago
5 0
-(4/5)*(3/7)*(15/16)*(-14/9)   [two negatives make one positive]
=(4*3*15*14)/(5*7*16*9)   [simplify 4/16]
=(3*15*14)/(5*7*4*9)
=(3*3*14)/(7*4*9)
=(14)/(7*4)
=(2)/(4)
=1/2
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The prices of two ratios are in the ratio x:y
Archy [21]

Answer:

4:1

Step-by-step explanation:

x+20 : y+20 = 5 : 2

(x+20)/(y+20) = 5/2

2(x+20) = 5(y+20)

2x+40 = 5y+100

2x = 5y+60 (1)

x-5 : y-5 = 5:1

(x-5)/(y-5) = 5/1

x-5 = 5(y-5)

x-5 = 5y-25

x = 5y-20 (2)

Solve (1) & (2) simultaneously,

2(5y-20) = 5y+60

10y-40 = 5y+60

5y = 100

y = 20

x = 5y-20

x = 5(20)-20 = 100-20

x = 80

x:y

80:20

4:1

8 0
3 years ago
Read 2 more answers
Omar had 7goldfish in his fish tank. He has 3 fewer redfish than goldfish in his tank. Omar also has 8 more black fish than gold
Mazyrski [523]

Answer:

Omar has 27 fish in all.

Step-by-step explanation:

Goldfish: OOOOOOO

Redfish: 7-3=4 OOOO

Black fish: 7+8=15 OOOOOOOOOOOOOOO

Add all of those and you get this many:

OOOOOOOOOOOOOOOOOOOOOOOOOO=27

Hope this helped lots and lots,

sincerely, me

7 0
3 years ago
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What is the area of a rectangle if one side has a length of 12x^3 and
mojhsa [17]

Answer:

The area of this rectangle is 72x^5

Step-by-step explanation:

A = l ∙ w

Let, l = length

Let, w = width

Step 1: Substitute the length and width for the two given values

    1. A = (12x³)(6x²)

Step 2: Multiply

    1. A = 72x^5

   

3 0
2 years ago
N
Veseljchak [2.6K]

Answer:

15000

Step-by-step explanation:

7 0
3 years ago
HELP ASAP 10 POINTSSS
kiruha [24]

Answer:

Complementary angles, adjacent angles

Step-by-step explanation:

Which relationships describe angles 1 and 2?

Options: Complementary angles, vertical angles, supplementary angles, adjacent angles

Angles 1 and 2 are opposite to the 90° angle. So, the angles' relationship to that angles is a vertical angle, meaning that the two add up to 90°.

Complementary angles add up to 90°, so this option is correct.

Vertical angles are the pairs of opposite angles formed by two intersecting lines. Because the two angles do not follow this definition, this option is incorrect.

Supplementary angles add up to 180°. However, we know that the two add up to 90°, so this option is incorrect.

Adjacent angles are angles that are next to each other, so this option is correct.

I hope this helps! Feel free to ask any questions!

6 0
2 years ago
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