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ValentinkaMS [17]
3 years ago
5

Do all 4 pls it is easy

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
5 0

Answer:

1. -2y

2.13x

3. 8d-3c

4. 8r+(-6s)

Step-by-step explanation:

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30 points! This table shows how long it took five students to complete their science projects.
torisob [31]

Answer:

the mean

Step-by-step explanation:

mean is calculated average

8 0
2 years ago
Jean loves to go bird watching. One day, she saw 7 birds.The next day, she
Ludmilka [50]

Answer:

Jaw saw an average of 6 birds each day

Step-by-step explanation:

Given: One day, Jean saw 7 birds. The next day, she  saw 11 birds. The next day, she saw no birds.

To find: average number  of birds Jean saw each day

Solution:

Average is a central value of a set of terms.

Average of terms x_1,x_2,x_3,...,x_n is given by \frac{x_1+x_2+x_3+...+x_n}{n}

Number of birds, Jean saw on day one (x_1) = 7

Number of birds, Jean saw on the second one (x_2)  = 7

Number of birds, Jean saw on the third one (x_3) = 7

So,

average number  of birds Jean saw each day = \frac{x_1+x_2+x_3}{3} =\frac{7+11+0}{3}=\frac{18}{3}=6

Therefore,

Jaw saw an average of 6 birds each day

6 0
3 years ago
Every week, a car dealer ship sells at least 5 minivans. Write an inequality that represents this situation. Let c represent the
kvv77 [185]

Answer:

we conclude that an inequality 'c ≥ 5' denotes this situation.

Step-by-step explanation:

Given

  • A car dealer ship sells at least 5 minivans

When we talk about 'at least', it means we are talking about '≥' in terms of representing the 'at least' in inequality symbol.

For instance,

'm≥n' means 'm' is greater than or equal to 'n'.

It means 'm' is at least equal to 'n'.

Coming back to the question,

  • Let 'c' represent the number of minivans sold each week.

As the car dealer ship sells at least 5 minivans. so the

inequality will be: c ≥ 5

Thus, we conclude that an inequality 'c ≥ 5' denotes this situation.

8 0
3 years ago
Tiana is a chemist who is making a chemical to add to swimming pools in order to make the water safer. She mixed two solid subst
Feliz [49]

Answer:

The chemically charges bionic dust formed by superconductor

Step-by-step explanation:

8 0
3 years ago
What is the simplest form of 1764
vova2212 [387]

Answer:

42

Step-by-step explanation:

Do the math:)

6 0
3 years ago
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