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3 years ago

Please help 25 points

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

6 0

Answer:

y ≤ -5

Step-by-step explanation:

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Reading tests are compared for two students.

olga55 [171]

Answer:

Alice's mean: 82

Adam's mean: 85

Step-by-step explanation:

Put all the numbers together (add) then divide by the number of numbers. If that makes sense

4 0

4 years ago

Need help with these 2 questions ASAP, no links and a answer with an explanation will get brainly

marin [14]

Answer:

Yes, Fiona is correct

Step-by-step explanation:

WHen the pythagorean theorem is applied to the side lengths (2^2 + 4^2 = c^2), the result for c^2 is 20. The correct answer would be sqrt.20. But Fiona is also correct becuase sqrt of 20 can be simplified to sqrt.4 * sqrt.5; which equals 2*sqrt.5

3 0

3 years ago

Read 2 more answers

Solve the following system of equations by the substitution method.

ruslelena [56]

5x = y + 6 (I)
2x - 3y = 4 (II)
-------------------
We have:
5x = y + 6 → $x = \frac{y+6}{5}$

Soon:
2x - 3y = 4 → $2* (\frac{y+6}{5}) - 3y = 4\to \frac{2y+12}{5} - 3y = 4$
<span>least common multiple (5)
</span> $\frac{2y+12}{5} - 3y = 4\to \frac{2y+12}{\diagup\!\!\!\!\!5} - \frac{15y}{\diagup\!\!\!\!\!5} = \frac{20}{\diagup\!\!\!\!\!5}$
$2y + 12 - 15y = 20$
$- 15y + 2y = 20 - 12$
$- 13y = 8$
$\boxed{\boxed{y = - \frac{8}{13} }}\end{array}}\qquad\quad\checkmark$

4 0

4 years ago

How do u solve this?

malfutka [58]

you can work it out or put in random numbers until the two sides are equal

3 0

3 years ago

1+89 and divided by 28

makkiz [27]

Answer:

the answer is

y e s

Step-by-step explanation:E

3 0

3 years ago