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andrezito [222]

3 years ago

15

78 students are going to be divided into 24 groups and the number of each group member will be either 4 or 2. How many groups of

2 will there be ? Let x be the number of groups of 2 and let y be the number of groups of 4

1 answer:

True [87]3 years ago

7 0

36 and 45 that will be your answer

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Please help, I really need this

Nady [450]

9514 1404 393

Answer:

(a) -- the correct choice is highlighted

Step-by-step explanation:

The units of specific heat tell you what quantities make up the ratio.

$\dfrac{390\text{ J}}{1\text{ kg$\cdot^\circ$C}}=\dfrac{-12.0\text{ J}}{0.012\text{ kg}\cdot\Delta T}\\\\\Delta T=\dfrac{-12.0}{0.012\cdot390}\ ^\circ\text{C}\approx-2.56\text{ $^\circ$C}$

The temperature will decrease by 2.56 C.

4 0

3 years ago

Will give brainliest if its correct and more than one person answers

myrzilka [38]

D) a = 24, c = 48, e = 22, i = 80 is the correct answer.

hope this helps!

6 0

3 years ago

Read 2 more answers

PLEASEEE HELP ASAPPPP . When solving using Elimination:

Komok [63]

Y because if you add them you will get 10x =-10
The y will be eliminated because you have positive 3 -4

6 0

3 years ago

Six times a number is 45 greater than the product of the number and -3. Find the number.

LiRa [457]

Answer:

5

Step-by-step explanation:

6a = (a*-3) + 45

then:

6a = -3a + 45

6a + 3a = 45

9a = 45

a = 45/9

a = 5

Check:

6*5 = (5*-3) + 45

30 = -15 + 45

8 0

3 years ago

Classify the triangle by its angles and by its sides

mojhsa [17]

Answer:

Acute isoceles

Step-by-step explanation:

Two base angles of the triangle are equal making it isosceles

The top angle is less than 90° making it an acute angle

4 0

3 years ago