1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tino4ka555 [31]
3 years ago
10

What is the value of x in the equation 4x+8y=40 when y=0.8

Mathematics
2 answers:
jolli1 [7]3 years ago
4 0

you plug in the y .8 to the 8 that is 6.4

<span>them you subtract 40 by 6.4 that is  33.6</span>

<span>then you divide that by 4 is 8.4</span>

GREYUIT [131]3 years ago
3 0
Substitute in 0.8 for y.

4x+8y=40 \\ \\ 4x + 8(0.8) = 40 \\ \\ 4x + 6.5 = 40 \\ \\ 4x = 40 - 6.4 \\ \\ 4x = 33.6 \\ \\ x = 8.4 \\ \\

The final result is: x = 8.4.
You might be interested in
The formula K=C+273.15 converts temperatures from Celsius C to Kelvin K.
Vanyuwa [196]
A. C= K-273.15
b. 300= C+273.15
300-273.15= C
26.85=C
4 0
3 years ago
Using the net below, find the surface area of the triangular prism.
Luden [163]

Answer:

Hi, there! The total surface area of that prism is 118 cm^2.

Step-by-step explanation:

The three rectangles on the side are called the lateral area, and they add up to 98(I'm assuming you know how to find the area of a 2d shape), and as for the triangles on the sides, you can just use the formula which is b*h/2.

Hope this helps :)

4 0
2 years ago
Read 2 more answers
The picture is the answer​
kari74 [83]

Answer:

4. 3

The answer is the last option, all you do is reduce

Step-by-step explanation:

rise over run = rise/run = 6/2

reduce,

6/2

3/1

3x

6 0
3 years ago
Can I get help please and thank you
Ipatiy [6.2K]

9514 1404 393

Answer:

  a.  0.81

  b.  v = 28000(0.81^n)

  c.  2757.36

Step-by-step explanation:

a. The growth factor is 1 more than the growth rate. Here, the growth rate is -19% (per year), so the growth factor, the multiplier, is ...

  1 -0.19 = 0.81

__

b. The equation sets value equal to the original value multiplied by the growth factor to the power of the number of years:

  value = (original value) × (growth factor)^n

  v = 28000(0.81^n)

__

c. For n=11, this is ...

  v = 28000(0.81^11) ≈ 2757.36

The value of the truck after 11 years is about $2757.

6 0
3 years ago
A teacher asked the class to solve the equation 3(times+2)= 21 Robert wrote 3 times + 6=21 as his first step. Which property did
suter [353]
He used 3 distributive property :)
3 0
3 years ago
Other questions:
  • 1 + the square root of 3
    11·1 answer
  • If 9 people had a some pizza and there was 2 boxes how many pizzas was left
    6·1 answer
  • 5 friends are going on a 3 kilometer hike. Each person is going to lead the group for an equal distance of their hike. How many
    13·1 answer
  • Simplify to create an equivalent expression.<br> −4(−11+4n)−3(−2n+9)
    8·2 answers
  • State the reference angle for -75
    15·1 answer
  • I really need Help Please!!!!!!!!
    11·2 answers
  • In the picture above, parallel lines p and q are cut by transversal line t. If the measure of angle 4 is 43 degrees, then the me
    13·1 answer
  • Guys pls help me!!!!!
    8·1 answer
  • Find the missing length of the right triangle below
    5·1 answer
  • i get the concept of slopes and such but i’m not rlly sure how to put a word problem in a graph? can someone please help out?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!