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3 years ago

20 + 20 = what help pls pls pls

Mathematics

2 answers:

iVinArrow [24]3 years ago

5 0

40

Your Welcome! ( Smiles )

ValentinkaMS [17]3 years ago

5 0

20 + 20 = 40

Hope this helps :)

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Select the correct answer from each drop-down menu.

erik [133]

Answer:

Grades 6 and 8

Step-by-step explanation:

If the relationship of girls to boys in two different grades are proportional, they must have the same ratio. To tackle this problem, we can find the ratios of genders in each grade and compare them.

Step 1, finding ratios:

Finding ratios is just like simplifying fractions. We will reduce the numbers by their greatest common factors.

GRADE 6:

$9:12=\\3:4$

GRADE 7:

$12:18=\\2:3$

GRADE 8:

$15:20=\\3:4$

GRADE 9:

$25:36$

Can't be simplified!

Step 2:

Notice how grades 6 and 8 both had a ratio of 3:4. We can conclude that these two grades have a proportional relationship between girls and boys.

I hope this helps! Let me know if you have any questions :)

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2 years ago

The following stem-and-leaf plot represents the scores earned by Mr. Roberts's class on their most recent science test.

Alinara [238K]

First we need to count the total number scores. This can be done from the stem and leaf plot. The total number of scores are 19. The total number of values is odd, so the median position will be:

$\frac{19+1}{2}=10th$

Thus the 10th score is the median score for the class of Mr. Robert. The 10th score from the stem and leaf plot is 81.

Thus 81 is the median score of Mr. Robert's Class.

5 0

3 years ago

Read 2 more answers

What is 13 - x = -7 what is x in this equation

Zielflug [23.3K]

Answer:

x = 20

(hope i helped)

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2 years ago

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Multiply the following and write your answer In scientific notation.. 3.62 × 10^-5 · 9,400.

svet-max [94.6K]

Answer:

3.4028 x 10^-1

Step-by-step explanation:

First you make the 9400 into scientific notation:

9.4x10^3

Then you combine like terms

(3.62x9.4)(10^-5x10^3)

Finally you simplify

34.028x10^-2

3.4028x10^-1

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2 years ago

At the beginning of the week, Jimmy has $20 dollars. He spends $13 on Monday. He

Kamila [148]

Answer:

Jimmy has $0 on Friday.

Step-by-step explanation:

He spent it all during the week.

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2 years ago