2 years ago

Evaluate the expression a - 4 when a = -8

Mathematics

1 answer:

natima [27]2 years ago

6 0

Answer:

-12

Step-by-step explanation:

To evaluate the expression the known value of a = -8 can be substituted in so the equation becomes -8 - 4.

From there the subtraction can be completed which equals -12. This can be visually seen on a number line if you look at -8 and move left 4 spaces.

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Ksju [112]

Answer:

2.5

Step-by-step explanation:

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2 years ago

W+2/3=2 5/6 what is w

Oduvanchick [21]

Answer:

13/6

Step-by-step explanation:

2 5/6=17/6

w+2/3=17/6

w=17/6-2/3

w=17/6-4/6

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3 years ago

Kerry has a new phone plan. It works by charging $20 per month and then $0.10 for each minute over 200 minutes.

REY [17]

Answer:

(40-20)/.10

Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

Bob raises Guinea Pigs and Chinchillas on his beachfront oasis. There are a total of 60,005 animals at the oasis. The number of

raketka [301]

Let named variables as you said g- guinea pigs and c- chinchillas
System of equation is:

First is: c+ g = 60,005
Second is: c= 2g+5

When we replace second in first we get:

2g+5+g = 60,005 => 3g+5= 60,005 => 3g= 60,000

g=60.000/3 = 20,000 => g=20,000

When this result we replace in the second equation we get

c= 2 * 20,000 +5= 40,000+5 = 40,005

c= 40,005

Good luck!!!!

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3 years ago