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boyakko [2]
3 years ago
8

5(x – 10) = 30 – 15x

Mathematics
2 answers:
Ede4ka [16]3 years ago
8 0
5x-50=30-15x     distribute the 5
20x-50=30    add 15x to each side
20x=80         add 50 to each side
x=4               divide
Ilia_Sergeevich [38]3 years ago
3 0
If you are trying to find X it is 4
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The graph below shows the distance, y, in miles, of a bird from its nest for a certain amount of time, x, in minutes:
Montano1993 [528]

Answer:

0.2 miles per minute represents the speed of the bird and 3 miles represents the original distance of the bird from its nest.

Step-by-step explanation:

As there is no graph mentioned here but the information are quite sufficient to answer the question.

We have points (0,3), (5,4),(10,5)...

From these points we can find the slope of the line .

From point slope formula y-y_1=m(x-x_1)

And assigning (x,y) (0,3) and (x_1,y_1) (5,4)

m=\frac{y_1-y}{x_1-x} =\frac{4-3}{5-0} =\frac{1}{5}=0.2

This slope is also the speed of the bird which is 0.2\ miles\ per\ minute.

As by plugging the values of any coordinate point we can confirm this.

Lets put (10,5), y-axis is the distance so in 10 minutes the the distance covered by the bird must be equal to to y-axis value which is 5 miles.

y=0.2(x),y=0.2(10)=5\ miles

Now as in t=0 the bird has started from y-intercept value 3 so we can say that,the original distance of the bird from its nest is 3\ miles.

So the correct choices are:B and D

The birds speed is 0.2\ miles per minute and is 3\ miles away from its nest.

7 0
3 years ago
3.) Identify all integers.<br> a. 725<br> d. 50<br> e. 10.2<br> C. 806
NeTakaya

Answer:

A, B, C

Step-by-step explanation:

An integer is a whole number (so not a fraction)

8 0
4 years ago
Read 2 more answers
Please show the steps!!
Mashutka [201]

1. 1/5 = x - 9 / x

2.  Cross multiply x = 5 (x - 9)

3. Distribute x = 5x - 45

4. Move the variable and change the sign x - 5x = -45

5.  Add like terms -4x = -45

6. Divide x = 45 / 4

So the solution is x = 45 / 4 or 11.25


6 0
4 years ago
Read 2 more answers
luis wants to uy a skateboard that usually sells for $79.99. all merchandise is discounted by 12%. what is the total cost of the
hjlf
$79.99 x 12% = $9.5988 merchandise discounted 
$79.99-$9.5988 = $70.3912 rounded $70.39  sales merchandise
$70.39 x 6.75%= 4.7513  sales tax 

$70.39 + $4.7513= $75.1413 or

the answer rounded is: $75.14
4 0
3 years ago
Please answer thissssssssssssssssssss
sweet-ann [11.9K]

Answer:

B.) The interquartile range of the data is 2

Step-by-step explanation:

3 0
3 years ago
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