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weeeeeb [17]
3 years ago
15

2(x – 9) = 10x + 11 Help

Mathematics
2 answers:
evablogger [386]3 years ago
5 0

Answer:

exact form: -28/8

decimal form: -3.625

mixed number form: -3 5/8

Naya [18.7K]3 years ago
4 0

Answer:

x = -3.625

Step-by-step explanation:

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How many groups of 3/4 are in each of the following questions?
marysya [2.9K]

Answer:

12 1/3

Step-by-step exp

First, you need to add up 11/4 and

6 1/2

11/ 4 + 6 1/2 = 11/4 + 13/2 = 37 / 4

To find how many 3/4 we have in 37/4, we simply dividw 37/4 by 3/4

37/4 ÷ 3/4

= 37/4 × 4/3 (4 will cancel out 4)

= 37/3

=12 1/3

3 0
3 years ago
Which of the following equations is equivalent to y-3x=4 ?
lina2011 [118]

Answer:

y=3x+4

idk what it has to be equivalent to...I just put it in y-intercept form

Step-by-step explanation:

7 0
3 years ago
The mean length of 5 childrens' index finger is 5.6cm.
Brilliant_brown [7]

The mean length (rounded to 2 DP) of these 8 people's index finger is 5.83

<h3>What is the mean length (rounded to 2 DP) of these 8 people's index finger?</h3>

The given parameters are:

<u>Children</u>

Mean = 5.6 cm

Frequency = 5

<u>Adult</u>

Mean = 6.2 cm

Frequency = 3

The mean length of these 8 people's index finger is calculated as:

\bar x = \frac{\sum fx}{\sum f}

So, we have

Mean = (5.6 * 5 + 6.2 * 3)/(5 + 3)

Evaluate

Mean = 5.83

Hence, the mean length (rounded to 2 DP) of these 8 people's index finger is 5.83

Read more about mean at

brainly.com/question/20118982

#SPJ1

7 0
1 year ago
Find the dimensions of the rectangle
hoa [83]
(a) The sum of length and width is half the perimeter, so the breadth in terms of length (x) in cm will be
.. breadth = 34 -x


(b) Then the expression for the area (in cm^2) is
.. area = length*breadth
.. 253 = (x)(34 -x)
.. x^2 -34x +253 = 0 . . . . . subtract the right side, eliminate parentheses
.. (x -11)(x -23) = 0 . . . . . . . factor
.. x = 11 or 23

The dimensions of the rectangle are 11 cm by 23 cm.
7 0
3 years ago
Solve;<br><br> 5(x+1)=6.4−2.7x<br><br> 3(y−1.5)=9.9–4.2y<br><br> 0.9y−1.8=0.3(y−4)
Dmitrij [34]
—
1. Answer x=0.18

2. Answer y = 2

3. Answer y = 1
7 0
3 years ago
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