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Dennis_Churaev [7]
2 years ago
15

2w^2-11w+12=0 solve using Quadratic

Mathematics
2 answers:
Basile [38]2 years ago
4 0

Answer:

w=4, 3/2

, Step-by-step explanation:

  1. split the second term in 2w2-11w+12 into two terms.

Factor out common terms in the first two terms, then in the last two terms.

w(2w-3)-4(2w-3)=0

Factor out the common term 2w-3

(2w-3)(w-4)=0

Solve for w

w=3/3,4 decimal form 1.5,4

Andrej [43]2 years ago
3 0

Answer:

therefore quadratic formula suggests the answer is approximately 4 thus forth answer is on a meracular level

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koban [17]
The unit rate is 4.5
8 0
3 years ago
a collection of dimes and quarters is worth $19.85. There are 128 coins in all. How many of each type of coin are in the collect
PolarNik [594]

Number of dimes were 81 and number of quarters were 47

<em><u>Solution:</u></em>

Let "d" be the number of dimes

Let "q" be the number of quarters

We know that,

value of 1 dime = $ 0.10

value of 1 quarter = $ 0.25

<em><u>Given that There are 128 coins in all</u></em>

number of dimes + number of quarters = 128

d + q = 128 ------ eqn 1

<em><u>Also given that collection of dimes and quarters is worth $19.85</u></em>

number of dimes x value of 1 dime + number of quarters x value of 1 quarter = 19.85

d \times 0.10 + q \times 0.25 = 19.85

0.1d + 0.25q = 19.85  -------- eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

From eqn 1,

d = 128 - q -------- eqn 3

<em><u>Substitute eqn 3 in eqn 2</u></em>

0.1(128 - q) + 0.25q = 19.85

12.8 - 0.1q + 0.25q = 19.85

12.8 + 0.15q = 19.85

0.15q = 7.05

<h3>q = 47</h3>

Therefore from eqn 3,

d = 128 - q

d = 128 - 47

<h3>d = 81</h3>

Thus number of dimes were 81 and number of quarters were 47

4 0
3 years ago
John kept track of how many baskets were made in a basketball game. After 4 minutes, 5 baskets were made.
ivann1987 [24]

1 basket is between 9 and 10 minutes .

<u>Step-by-step explanation:</u>

Here we have , John kept track of how many baskets were made in a basketball game. After 4 minutes, 5 baskets were made.  We need to find How many baskets were made between 9 and 10 minutes . Let's find out:

In order to calculate baskets between 9 min and 10 min we will find baskets at 10 min and at at 9 min , will subtract than !

Baskets at 10 min :

At 4 min we have 5 baskets so , in 10 min

⇒ (10)\frac{5}{4}

⇒ 1.25(10)

⇒ 12.5

Baskets at 9 min :

At 4 min we have 5 baskets so , in 9 min

⇒ (9)\frac{5}{4}

⇒ 1.25(9)

⇒ 11.25

So , Baskets between 10 & 9 min is 12.5-11.25=1.25 , which on rounding off gives 1 . Therefore , 1 basket is between 9 and 10 minutes .

3 0
3 years ago
What is. the fraction1/5 of 80?
Yuliya22 [10]
\frac{1}{5} \times 80=\frac{80}{5}=\frac{16 \times 5}{5}=16
5 0
3 years ago
Read 2 more answers
What is 8 diveded by 3
Sophie [7]

Answer:

2.66666666667

Step-by-step explanation:

2.6666666667x3=8

5 0
2 years ago
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