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Galina-37 [17]
3 years ago
5

Solve the system by elimination

Mathematics
1 answer:
andreev551 [17]3 years ago
3 0
The answer is x=5 and y=-2

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Identify the lateral area and surface area of a regular triangular pyramid with base edge length 14 cm and slant height 15 cm
posledela

Answer:

D) L = 315 cm2 ; S = 399.9 cm2

Step-by-step explanation:

Lateral area;

3 × (½)(14)(15)

315 cm²

Surface area:

315 + (½)(14)(14)sin(60)

399.8704896 cm²

6 0
3 years ago
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A recycling center pays 25 cents per aluminum can recycled at its facility. If Tracy recycles 5 aluminum cans there, how many do
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If Tracy recycles 5 and each is 25 cents

5 times 0.25 equals 1.25

She would get$1.25 for recycling 5 cans
3 0
3 years ago
At a conference of 250 people, 20% of the participants are French, 35% are Americans, 5% are Germans, and the rest are of other
yanalaym [24]
20% of 250 people are french.

0.2 * 250 = 50 people. Hope this helps!
7 0
3 years ago
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One canned juice drink is 15% orange juice; another is 5% orange juice. How many liters of each should be mixed together in orde
grandymaker [24]
F = 15%
v = 5%
0.15f + 0.05v = 0.14*10
15f + 5v = 140
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f + v = 10 (total volume)
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7 0
3 years ago
To find the area of a trapezoid use the expression 1/2h (b1 + b2), where h represents the height b1 represents the length of the
lana [24]

Answer:

7 ft²

Step-by-step explanation:

The formula for this is given in the problem

Plug in the given values

1/2 * 2 (4+3)

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7 ft²

7 0
3 years ago
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