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Umnica [9.8K]
3 years ago
11

Camelo’s class has 7 tables with 2 students at each table. Kera’s class has 10 tables with 2 students at each table. How many mo

re students are there in Keras class?
Mathematics
1 answer:
Hunter-Best [27]3 years ago
6 0

Answer:

6 more students in Kera's class.

Step-by-step explanation:

If Camelo's class has 7 tables with 2 students at each table, then that means Camelo's class has 14 students total since 7*2=14

If Kera's class has 10 tables with 2 students at each table, then that means Kera's class has 20 students total since 10*2=20

You then subtract the number of students in Kera's class from the number of students in Camelo's class.

20-14=6

Therefore, Kera's class has 6 more students than Camelo's class.

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How many solutions does the system have? \begin{cases} 3x+y=8 \\\\ 2x+2y=8 \end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ 3x+y=8 2x+2y=8 ​ Choose 1
ELEN [110]

Answer:

This system has one solution (x=2 and y=2), then the answer is A.

Step-by-step explanation:

The system of equations is:

3x+y=8 (1)

2x+2y=8 (2)

Let's multiply the first equation by 2 and subtract it to the second equation  

6x-2x+2y-2y=16-8

4x=8  

x=2

Using this value in (1) we can find y.

3(2)+y=8

6+y=8

y=2

Therefore, this system has one solution (x=2 and y=2), the answer is A.

I hope it helps you!

3 0
3 years ago
Help help help math math
Salsk061 [2.6K]

Answer:

V = 4000 ft³

Step-by-step explanation:

if diameter is 20 then radius is half that, or 10

use formula:

V = 4/3(3)(10)³

V = 4(10)³

V = 4(1000)

V = 4000 ft³

7 0
3 years ago
If neither a nor b are equal to zero, which answer most accurately describes the product of (a + bi)(a - bi)?
Scrat [10]

Answer:  the correct option is

(D) The imaginary part is zero.

Step-by-step explanation:  Given that neither a nor b are  equal to zero.

We are to select the correct statement that accurately describes the following product :

P=(a+bi)(a-bi)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We will be using the following formula :

(x+y)(x-y)=x^2-y^2.

From product (i), we get

P\\\\=(a+bi)(a-bi)\\\\=a^2-(bi)^2\\\\=a^2-b^2i^2\\\\=a^2-b^2\times (-1)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{since }i^2=-1]\\\\=a^2+b^2.

So, there is no imaginary part in the given product.

Thus, the correct option is

(D) The imaginary part is zero.

3 0
3 years ago
Is it A) 5 or C) 1/5?
Novay_Z [31]

Answer:

5

Step-by-step explanation:

4 0
3 years ago
Divide. 1/3 ÷ 4/5 Express your answer in simplest form.
koban [17]

Answer: 5/12

Step-by-step explanation: To divide one fraction by another, first turn the second fraction upside-down, then multiply.

1/3 ÷ 4/5 = 5/12 ≅ 0.4166667


3 0
4 years ago
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