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Alenkasestr [34]
3 years ago
10

Find the sum of (x + 5) and (2x + 3)

Mathematics
2 answers:
weeeeeb [17]3 years ago
8 0

Answer:

3x+8

Step-by-step explanation:

Arte-miy333 [17]3 years ago
6 0

Answer:

<h2>3x+8 </h2>

Step-by-step explanation:

\left(x+5\right)+\left(2x+3\right)\\\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\=x+5+2x+3\\\\\mathrm{Group\:like\:terms}\\=x+2x+5+3\\\\\mathrm{Add\:similar\:elements:}\:x+2x=3x\\=3x+5+3\\\\=3x+8

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Javier has a basket of oranges and apples. The number of oranges is 2 more than twice the number of apples in the basket. The di
Vesna [10]
Hello!

Let's put this into a system of equations and have a represent the apples and o represent the oranges.

o=2a+2
0.5o-0.5a=4

Since we can already so what o equals (2a+2) we will substitute it into the second equation and solve for a.

0.5(2a+2)-0.5a=4
1a+1-0.5a=4
1.5a+1=4
1.5a=3
a=2

Now that we know the value of a will put a into the first equation to find o.

o=2(2)+2
o=4+2
o=6

There were 6 oranges and 2 apples.

I hope this helps!
3 0
3 years ago
Area of a regular hexagon with an apothem of 15 cm
Anton [14]

Answer:

area = 779.4 cm²

Step-by-step explanation:

divide it into 6 equal equilateral triangles. Each corner of a triangle will be 60°.

tan 60° = 15/x

1.7321 = 15/x

x = 8.66 (this is one-half of the base of the triangle)

base = 17.32 cm

area of one triangle = 1/2(17.32)(15) = 129.9 cm²

129.9(6) = 779.4 cm²   (because 6 triangles make up the hexagon)

8 0
2 years ago
I need help fast it’s a timed test
AleksAgata [21]

Answer:

x=7

Step-by-step explanation:

Add 10 to both sides to isolate x.

4x=28

x=7

7 0
3 years ago
Read 2 more answers
1) Given h(x)=x-5 <br> a) Determine h^2<br> b)determine h^3
ElenaW [278]

Answer:

A) x^2-10x+25 B)X^3-15x^2+75x-125

Step-by-step explanation:

H^2=(x-5)(x-5)=x^2-10x+25

H^3=(x-5)(x-5)(x-5)=X^3-15x^2+75x-125

6 0
3 years ago
A medication is administered to a patient and the
luda_lava [24]

Answer:

D ; 3 hours, 45 minutes

Step-by-step explanation:

8 0
3 years ago
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