Answer: m∠BCE = 63°
m∠BAD = 76°
Step-by-step explanation:
Problem 1:
Given
m∠BEC = 90°
m∠EBC = 27°
Total = 117°
Solution:
Subtract 180° - 117° = m∠BCE = 63°
Problem 2:
Given
m∠ADE = 52°
m∠ABE = 52°
Total = 104°
Solution:
Subtract 180° - 104° = m∠BAD = 76°
Answer:
x = 10°; Angle A = 84°
Step-by-step explanation:
Angle A + Angle B = 180
5x + 34 + 2x + 76 = 180
7x + 110 = 180
7x = 70
x = 10
Angle A: 5(10) + 34 = 50 + 34 = 84°
Answer: 20 child tickets were sold that day.
Step-by-step explanation:
Let x represent the number of child tickets that were sold that day.
Let y represent the number of adult tickets that were sold that day.
On Sunday, twice as many adult tickets as child tickets were sold. It means that
y = 2x
At the city museum, child admission is $6.30 and adult admission is $9.60. The total sales for that day was $510.00. It means that
6.3x + 9.6y = 510- - - - - - - - - - - -1
Substituting y = 2x into equation 1, it becomes
6.3x + 9.6 × 2x = 510
6.3x + 19.2x = 510
25.5x = 510
x = 510/25.5
x = 20
y = 2x = 2 × 20
y = 40
Responder:
13/8
Explicación paso a paso:
Dado:
Fracción de leche entera = 2/4
Fracción de leche evaporada = 5/8
Fracción de leche condensada = 1/2
Leche total utilizada en la torta:
Leche entera + leche evaporada + leche condensada
2/4 + 5/8 + 1/2
L. C. M de 2, 4 y 8 = 8
(4 + 5 + 4) / 8
= 13/8
= 1 5/8