s9152596 s9152596

19-12-2020
Mathematics

contestada

evaluate 7 - (-19) - 18 + (-19) + 18

Respuesta :

vinny1203 vinny1203

19-12-2020

7 - (-19) - 18 + (-19) + 18

= 26 - 18 + (-19) + 18

= 8 + (-19) + 18

= - 11 + 18

= 7

Remember:

• follow BEDMAS or PEDMAS
• always go from left to right
• 2 negatives = positive
• 2 positives = negative
• negative and a positive = negative (and vice versa)

Answer Link

Otras preguntas

Circle the error and explain why it is an error Please help ASAP thank you!

If a high jumper needs to make his center of gravity rise 1.50 m, how fast must he be able to sprint? Assume all of his kinetic energy can be transformed into p

What is the solution to the inequality 0.8x+20<1.2x−40? A x<−30 B x>150 C x>−30 D 19860

• Now suppose a cicada comes out every 8 years instead of 7 years. How many years will go by before the cicada and predator appear at the same time again

Melanie counted her heartbeats after running her marathon. In 20 seconds, she counted 53 heartbeats. At this current rate, what would be her heartbeats per minu

What is the function of ATP? To help absorb energy from the sun To provide a source of food for the cell To absorb heat produced by the reactions in the cell T

What is the answer for this question because it is very hard

(Another tomato/skyscraper problem.) You are looking out your window in a skyscraper, and again your window is at a height of 450 feet above the ground. This ti

Olivia Sawyer discovered problems in coordinating the work flow going from her department to marketing. To solve the problem, she identified some situations tha

A manufacturing company finds that they can sell 200 items at 3.50 per item and 400 items at 2.50 per item. If the relationship between the number of items sold