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3 years ago

Which expressions are equivalent to 3(-2a-4-)+3a

Mathematics

1 answer:

svetlana [45]3 years ago

6 0

Answer:

−6a−12+3a

Step-by-step explanation:

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Joanna set a goal to drink more water daily. The number of ounces of water she drank each of the last seven days is shown below.

hammer [34]

Answer:

The median amount of water is higher when the eighth day's amount is included in the data.

Explanation:

Given the ounces of water drank is 60, 58, 64, 64, 68, 50, 57

Arranging in ascending order: 50, 57, 58, 60, 64, 64, 68

Calculating the median of the above data

Median (when n is odd) = $\left(\frac{n+1}{2}\right)^{t h} \text { term }$

where n =7

Median = 4th term = 60

When the eight day is added,

Series will be: 50, 57, 58, 60, 64, 64, 68, 82

Median (when n is even) = $\frac{\left(\frac{n}{2}\right)^{t h} t e r m+\left(\frac{\pi}{2}+1\right)^{t h} t e r m}{2}$

Median = $\frac{60+64}{2}=62$

So, here we can say that median has increased after adding 82 in the data

3 0

3 years ago

Read 2 more answers

Angel is saving all of his money for a ticket to Grad Bash. Before he started working, he had $7.50 in his bank account On Satur

Serggg [28]

Answer:

The second choice is correct. (f(x) = 8.50x+7.50)

Angel had +7.50 dollars to start off with and then worked 5 hours to get 42.50 dollars. This means, she earns 8 dollars 50 cents per hour, meaning that 8.50x would represent the total amount of money that she would earn from her job.

Let me know if this helps!

6 0

2 years ago

What is the solution of this equation? -1y = -4

tigry1 [53]

Answer:

y = 4

Step-by-step explanation:

-1y = -4

Divide both sides by -1 to get y by itself.

-1/-1 = -4/-1

y = 4

It's positive because there are two negatives, which mean they cancel out.

8 0

3 years ago

100 points !!!!!!!!!!!!! please help

m_a_m_a [10]

We have to,

write a word problem for this equation,

→ 2/3 × 5

Let's write a word problem,

For one student 2/3 part of one cake is needed. Then how many cakes will they have to buy for 5 students?

5 0

2 years ago

Read 2 more answers

Help me please assap

Reil [10]

Answer: G

Step-by-step explanation:

(x, y) → ( $\frac{1}{8}x$ , $\frac{1}{8}y$ )

means that the new quadrilateral will be $\frac{1}{8}$ the size of the original quadrilateral, so it will be smaller because the it maps to a fraction that is less than 1.

5 0

2 years ago