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Semenov [28]
3 years ago
12

Use substitution to solve the system. x = 3y + 8 3x + 5y = 10

Mathematics
1 answer:
Alex Ar [27]3 years ago
6 0
The answer should be (5,-1)
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Four students spoke to the Home and School parents for a total of 2/3 hour. Each student spoke for the same amount of time. How
xeze [42]

creo que la respuesta el 10 minutos, porque dice "horas" pero no dice a cuantas horas equivale :)      espero que te aya adudado auque sea un poquito

8 0
3 years ago
Find the HCF and LCM of 4x^2 - 36 ,2x^2 - 12x + 18 and 2x^2 + x - 21​
olga_2 [115]

Answer:

(x-3), 4 (x - 3)^2 (x + 3) (2 x + 7)

Step-by-step explanation:

Factor all the expressions,

1st expression= 4x^2 - 36=4(x^2-9)=4(x+3)(x-3)

2nd expression=2x^2 - 12x + 18 =2(x^2-6x+9)=2 (x - 3)^2=2(x-3)(x-3)

3rd expression=2x^2 + x - 21​=(x - 3) (2 x + 7)

HCF=Commo factor=(x-3)

LCF=Common factor*Remaining factor=4(x+3)(x-3)(x-3) (2 x + 7)=4 (x - 3)^2 (x + 3) (2 x + 7)

4 0
3 years ago
Rebecca needs 10 1/2 yards of fabric to make quilt. She has one piece of fabric that is 2 1/2 yards and another piece of fabric
ASHA 777 [7]

Answer:

-15/4

Step-by-step explanation:

Add 2 1/2 and 4 1/4

Take that fraction and subtract it from 10 1/2

6 0
3 years ago
The ratio of men to women working for a company is 3 to 5 . if there are 140 women working for the company, what is the total nu
Naddika [18.5K]

Ratio of men : women = 3 : 5

-

<u>Find total parts:</u>

3 + 5 = 8

-

<u>Find 1 part:</u>

5 parts = 140

1 part = 140 ÷ 5 = 28

-

<u>Find 8 parts (total):</u>

8 parts = 28 x 8 = 224

-

Answer: There are 224 employees

4 0
3 years ago
Please answer this correctly
Dahasolnce [82]

Assuming the coin is not weighted and is a fair and standard coin - the chance of flipping head is 1/2. You can either flip head or tails, there are no other possible outcomes.

7 0
3 years ago
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