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3 years ago

HURRY HELP 18 POINTS

Mathematics

1 answer:

BlackZzzverrR [31]3 years ago

7 0

Answer:

C. She did not follow order of operations.

Step-by-step explanation:

Order of operations says you always have to multiply before you add when solving an equation, unless there are parentheses. Meaning that she should have multiplied -9 and 2/5 first before adding -18, instead of adding -9 and -18 first.

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PLEASE HELP thanks!!

mrs_skeptik [129]

Answer:

b = 70

b = a = 70

b = c = 70

Step-by-step explanation:

snice b and 70 are opposite the top; they are equal.

b and a are alternate internal they are again equal so a is 70.

and finally a is equal with c because they are opposite at the top.

I hope I helped you! :)))

6 0

2 years ago

James wants to send two gifts by mail. one package weighs 2 3/4 pounds. the other package weighs 1 3/4 pounds. what is the total

Taya2010 [7]

Answer:

4.5 pounds

Step-by-step explanation:

Convert them both to improper equations.

2 3/4 = 11/4

1 3/4 = 7/4

Then add.

11/4 + 7/4 = 18/4

Then simplify.

18/4 = 4 2/4 = 4.5

7 0

3 years ago

Read 2 more answers

How many hours are in 6,489 minutes

Semenov [28]

Answer:

108 hours and 15 minutes

Step-by-step explanation:

4 0

2 years ago

Find the lowest common denominator of and . A. 16 B. 32 C. 8 D. 4

aliina [53]

D. 4 is the correct answer I wrote it out

6 0

4 years ago

Read 2 more answers

What is the probability of choosing a number from 1 to 10 that is greater than 5 or even?

dedylja [7]

Answer:

3/10 or 30%

Step-by-step explanation:

The longest, yet easiest way to do this is to find all possible numbers that fit this scenario

1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Even Numbers: 2, 4, 6, 8, 10

Greater Than 5: 5, 6, 7, 8, 9, 10

Now find common numbers in both categories

6,8, and 10

meaning the probability is 3/10 or 30%

7 0

3 years ago