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Vesnalui [34]
3 years ago
9

Tiffany’s class recycled 3 1/2 box of paper in a month if they recycled another 6 2/5 boxes the next month was is the total amou

nt they recycled
Mathematics
1 answer:
nalin [4]3 years ago
8 0

Answer:

9 9/10

Step-by-step explanation:

amount of them

= 3 1/2 + 6 2/5

= 7/2 + 32/5

= 35/10 + 64/10

= 99/10

= 9 9/10

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QUICK PLEASE !!!!!
Leni [432]

Answer:

<h2>y = 3x + 3</h2>

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

m - slope

b - y-intercept

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

==============================================

From the table we have :

x = 1 → y = 6

x = 2 → y = 9

x = 3 → y = 12

x = 4 → y = 15

Calculate the slope (choice any two pairs, and calculate the slope):

(1, 6), (2, 9)

m=\dfrac{9-6}{2-1}=\dfrac{3}{1}=3

We have the equation:

y=3x+b

Put the coordinates of the point (1, 6) to the equation, and solve it for b:

6=3(1)+b

6=3+b              <em>subtract 3 from both sides</em>

3=b\to b=3

Finally:

y=3x+3

3 0
3 years ago
The heights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation 2.7 inches. Men the same
masha68 [24]

Answer: The z-scores for a woman 6 feet tall is 2.96 and the z-scores for a a man 5'10" tall is 0.25.

Step-by-step explanation:

Let x and y area the random variable that represents the heights of women and men.

Given : The heights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation 2.7 inches.

i.e. \mu_1 = 64   \sigma_1=2.7

Since , z=\dfrac{x-\mu}{\sigma}

Then, z-score corresponds to  a woman 6 feet tall (i.e. x=72 inches).

[∵  1 foot = 12 inches , 6 feet = 6(12)=72 inches]

z=\dfrac{72-64}{2.7}=2.96296296\approx2.96

Men the same age have mean height 69.3 inches with standard deviation 2.8 inches.

i.e. \mu_2 = 69.3   \sigma_2=2.8

Then, z-score corresponds to a man 5'10" tall (i.e. y =70 inches).

[∵  1 foot = 12 inches , 5 feet 10 inches= 5(12)+10=70 inches]

z=\dfrac{70-69.3}{2.8}=0.25

∴ The z-scores for a woman 6 feet tall is 2.96 and the z-scores for a a man 5'10" tall is 0.25.

6 0
3 years ago
Michael has a collection of 1404 race cards.He hopes to sell the collection in packs of 36 cards,and make 633.75 when all the pa
Anna007 [38]
He should charge 16.25 for each pack
6 0
3 years ago
Anyone know the answers to this?
max2010maxim [7]

Answer:

The answer is 6 is a corresponding angle to 8 :) brainliest?

3 0
3 years ago
Read 2 more answers
What should be done first to evaluate the expression?
Leto [7]

Answer:

remember pemdas?

Step-by-step explanation:

Parentheses

Equal sign

Multiplication

Division

Addition

Subtraction

So you would have to divide first.

6 0
3 years ago
Read 2 more answers
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