-6+4=-2
-100+45=-55
because you can't add two positive numbers together and get a negative so at least one of the numbers added has to be negative
C is the answer I pretty sure of it
Answer:
2.7 hours
Step-by-step explanation:
We can use the formula
1/a + 1/b = 1/c
where a and b are the times working alone and c is the time working together
1/8 + 1/b = 1/2
Multiply each side by 8b to get rid of the fractions
8b( 1/8 + 1/b = 1/2)
b + 8 = 4b
Subtract b from each side
b+8-b = 4b-b
8 = 3b
Divide each side by 3
8/3 = 3b/3
2.666666repeating = b
Round to 1 decimal place
2.7 = b
Answer:
De las tablas de datos para tornillos estándar y tamaños de orificios de llave, de un sitio web globalfastner basado en ASME B 18.2.1 tenemos;
El tamaño máximo del cuerpo y, por lo tanto, el orificio de un perno cuadrado de un mínimo de 1.944 pulgadas (aproximadamente 50.65 mm) es de 1.3750 pulgadas (aproximadamente 34.925 mm).
Step-by-step explanation: