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melisa1 [442]
3 years ago
14

Lá respuesta al 49?

Mathematics
1 answer:
Greeley [361]3 years ago
5 0

Answer:

x=5, y=2

Step-by-step explanation:

Double one number plus triple another number equals 16, and six times the first minus five times the second equals 20. Calculate both numbers

2x + 3y = 16

6x - 5y = 20

3 * (2x + 3y) = 3 * 16

6x + 9y = 48

(6x + 9y ) -(6x - 5y) = 48 - 20

14y = 28

y = 2

x = 5

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Una botella pesa 1090kg cuando esta llena y 250g cuando esta vacía. ¿Cuanta masa de aceite contiene la botella?
Hitman42 [59]

Respuesta:

1089,75 kg

Explicación paso a paso:

Dado que :

Masa de embotellado lleno = 1090 kg

Masa de la botella vacía = 250 g

Masa de aceite que contiene la botella:

Expresando la masa de la botella cuando se llena en gramos:

1000 g = 1 kg

1090 kg = (1090 * 1000) = 1090000 g

La masa de aceite que contiene la botella es así:

Masa de la botella cuando está llena - masa de la botella cuando está vacía

1090000 g - 250 g = 1089750 g

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7 0
3 years ago
What is 3 multiplied by 5/8 as a mixed number
kati45 [8]
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6 0
4 years ago
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Answer:

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8 0
3 years ago
(100 POINTS) lol help me plz
pishuonlain [190]

Since <em>l</em> and <em>m</em> are parallel, the unlabeled angle adjacent to the 63° one also has measure (7<em>x</em> - 31)° (it's a pair of alternating interior angles).

Then the three angles nearest line <em>m</em> are supplementary so that

(7<em>x</em> - 31)° + 63° + (5<em>x</em> - 8)° = 180°

Solve for <em>x</em> :

(7<em>x</em> - 31) + 63 + (5<em>x</em> - 8) = 180

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The bottom-most angle labeled with measure (4<em>y</em> + 27)° is supplementary to the angle directly adjacent to it, so this unlabeled angle has measure 180° - (4<em>y</em> + 27)° = (153 - 4<em>y</em>)°. The interior angles of any triangle have measures that sum to 180°, so we have

(7<em>x</em> - 31)° + 63° + (153 - 4<em>y</em>)° = 180°

We know that <em>x</em> = 13, so 7<em>x</em> - 31 = 60. Then this simplifies to

123° + (153 - 4<em>y</em>)° = 180°

Solve for <em>y</em> :

123 + (153 - 4<em>y</em>) = 180

276 - 4<em>y</em> = 180

96 = 4<em>y</em>

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7 0
3 years ago
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Answer:

9.  2a + 14

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