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lbvjy [14]
3 years ago
9

I need help on 15 please

Mathematics
1 answer:
Nikolay [14]3 years ago
4 0
The ratio 12:20 because you need it to be equal to 3:5. 3 times 4 which makes 12 so you need to multiply 5 with 4 too
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Help me with this please!!!
larisa86 [58]

Answer:15

Step-by-step explanation: since it’s 4 to3 and if you multiply 4 and 5 you get 20 so you multiply 3 and 5 to get 15. Hope it helps!

8 0
3 years ago
Which expression is equivalent to cos 120°?
ryzh [129]

Answer:

cos 120° = -1/2

Step-by-step explanation:

cos 120° =  (adjacent side) / (hypotenuse.

Here the adjacent side (the side next to the central angle in this 30-60-90 triangle) is -1.  Then the hypotenuse is 2 and the opposite side is √3.

Thus, cos 120° = -1/2

4 0
3 years ago
Shirl is planting a 4-foot flower border around the edge of her yard. She drew this diagram to show how it should look.
Lostsunrise [7]
<span> Two rectangles, one lying completely within the other. The area between the rectangles is shaded. Two adjacent sides of the larger rectangle are labeled sixty feet and forty feet. The shaded area is labeled four foot border.

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Area of smaller rectangle = (60-4)ft * (40-4)ft = 56 ft * 36 ft = 2,016 ft²

Area of the border = 2,400 ft² - 2,016 ft² = 384 ft²
7 0
2 years ago
Read 2 more answers
What fraction of a gallon is a quart
cluponka [151]

Answer:

1/4 gallon

Step-by-step explanation:

4 quarts = 1 gallon, so 1 quart = 1/4 gallon.


3 0
2 years ago
Alice, Bernice, and Cheryl shared some stamps in the ratio 8 : 9 : 18. Alice received 184 stamps. Find the number of stamps that
faust18 [17]
184/8=23
8=alice
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18=cheryl

8:9:18=184:207:414
6 0
2 years ago
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