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alexandr402 [8]
3 years ago
10

2.3+0.5(3+x)= ____x + _____ need step by step answer's to both of these questions also explain what is in the blanks. 2y+3x +5y+

6x*4 =_____x+______y+_____
Mathematics
2 answers:
JulijaS [17]3 years ago
6 0
2.3 + 0.5(x + 3)
2.3 + 0.5(x) + 0.5(3)
2.3 + 0.5x + 1.5
2.3 + 1.5 + 0.5x
4.8 + 0.5x

2y + 3x + 5y + 6x(4)
2y + 5y + 3x + 24x
7y + 27x
andre [41]3 years ago
4 0
For the first one, you would distribute so:

2.3 + 1.5 + .5x     (if you don't know, for distribution, you would do .5 times 3 and .5 times x to get the answer that I got)

.5x + 3.8    (now you add 2.3 and 1.5 to get this answer)

So .5x + 3.8 is your final answer

now for the second question:

you combine the like terms so:

(2y + 5y) + (3x + 6x) <----- first step

(7y + 9x)*4

28y + 36x 

I am pretty sure this is the right answer, but <em>I can be wrong because of the way the equation is put in. does the * mean multiplication? If so, you can't get an addition of a number without variables. 
</em>
Hope this helps!

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about 70,000 people live in a circular region with a 30-mile radius. find the population density in people per square mile.
bezimeni [28]

Solve for the area of the circular region first:

A = pi*r^2

A = pi*(30 mi)^2

A = 2827.43 mi^2

Density = 70000 people/2827.43 mi^2

Density = 24.76 = 25 people/mi^2 <--ANSWER Plz vote brainnliest


4 0
3 years ago
Which point is an x-intercept of the quadratic function f(x) = (x + 6) X – 3)?
Anni [7]

Answer:

(-6, 0) and (3, 0)

Step-by-step explanation:

I think you meant f(x) = (x + 6)(x - 3).  This graph intersects the x-axis in two places:  (-6, 0) and (3, 0).  These are the "x-intercepts."

5 0
3 years ago
Expanded notation for 55,032178
fenix001 [56]
74746394738284729274638292
8 0
3 years ago
How would I do this problem?
kenny6666 [7]

If it's a geometric sequence then:

a_1=27;\ a_2=27\\\\r=\dfrac{a_2}{a_1}\to r=\dfrac{27}{36}=\dfrac{3}{4}=0.75\\\\a_{n+1}=a_nr\\\\a_3=27\cdot0.75=20.25\ CORRECT

We calculate the fourth and fifth term of the sequence:

a_4=a_3r\to a_4=20.25\cdot0.75=15.1875\\\\a_5=a_4r\to a_5=15.1875\cdot0.75=11.390625

Answer:

In year 4 15.1875 animals.

In year 5 11.390625 animals.

7 0
3 years ago
You offer to do the dishes for your family for the next month. You suggest that they can pay you in one of three ways.
Sophie [7]

Answer:

I say number 2

Step-by-step explanation:

0.02 is 2 cents while 0.20 is twenty sense. That would make more sense

5 0
3 years ago
Read 2 more answers
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