3 years ago

Can you someone please solve 2 and 3

1 answer:

7 0

Answer:

I think the first one is 4 and the second one is 2

Step-by-step explanation:

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Fudgin [204]

{3x+2y=4 /*5
{4x+5y=17 /*(-2)

{15x+10y=20
{-8x-10y=-34 (+)
7x=-14
x=-2

15x+10y=20
15*(-2)+10y=20
-30+10y=20
10y=50
y=5

5 0

3 years ago

Digiron [165]

Answer: $\frac{17}{35}$

Step-by-step explanation:

Given

The bag contains 6 orange and 9 lime sweets

For both sweets of the same flavor, Jodi must either choose orange or lime

No. of ways it can be done is $^6C_1\times^5C_1+^9C_1\times^8C_1$

The total no of ways of selecting two sweets out of 15 is $^{15}C_1\times^{14}C_1$

The probability that both sweets are the same flavor

$P=\dfrac{^6C_1\times^5C_1+^9C_1\times^8C_1}{^{15}C_1\times^{14}C_1}=\frac{102}{210}=\frac{51}{105}=\frac{17}{35}$

3 0

3 years ago

Elza [17]

1-(1/5)= 4/5 or 28/35 if you multiply top and bottom by 5

8 0

3 years ago

sergeinik [125]

This is the picture I am not very good at proofs but hopefully someone can solve it.

8 0

3 years ago

Simora [160]

Answer:

third

Step-by-step explanation:

7 0

3 years ago