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
damaskus [11]
3 years ago
15

Whats the answer to 4x+8y=40 when y =0.8

Mathematics
2 answers:
mrs_skeptik [129]3 years ago
6 0
I got 8.4, hope it helps.
Alexxandr [17]3 years ago
3 0
9.6 Hope that help have a good day

You might be interested in
if a motercycle is moving at a constant speed down the highway of 40 km/hr, how long would it the motorcycle to travel 10 km
ahrayia [7]

Answer:

15 minutes

Step-by-step explanation:

First, the motorcycle goes at a speed of 40 km/hr.

The question asks for how long it would take to travel 10 km.

Well, there are 60 minutes in an hour, since we will be translating into minutes.

Also, 10 km is 1/4 of 40 km, so it would make sense that the time length would be 1/4 of an hour as well.

1/4 of 60 minutes is 15 minutes.  So it takes 15 minutes for the motorcycle to travel 10 km.

Now, if all this wordy stuff is too much to comprehend, you can also solve using proportional relationships.

\frac{40km}{60min}=\frac{10km}{xmin}

Now cross multiply:

40km*xmin=10km*60min\\40x=600

Divide both sides by 40:

\frac{40x}{40}=\frac{600}{40}\\x=15

Again, this shows that it wouls take 15 minutes for the motorcycle to travel 10 km.

6 0
3 years ago
800 divided by 10 to the power 3
Blababa [14]
I think that the answer you are looking for is 0.3

7 0
3 years ago
The formula S=3F-24 is used to calculate shoe size,S, from food length,F(in inches).which equation could be used to calculate fo
sp2606 [1]
Solving
  S = 3F - 24
for F gives
  S + 24 = 3F
  (S + 24)/3 = F

The best choice is the last one:
  F = (S + 24)/3
6 0
3 years ago
I don't know how to do this​
Gre4nikov [31]

Answer:

x = -11/5 and y = 24/5

Step-by-step explanation:

Use elimination.

First, we need to multiply so that at least one variable can cancel out.

We can multiply the top equation by 2.

So we get

4x + 6y = 20

Then, we can use elimination.

The x's cancel out.

So we get 5y = 24

Or y = 24/5

Then, we can plug in this y value back into the first equation to find x.

2x + 3(24/5) = 10

2x + 72/5 = 50/5

2x = -22/5

x = -11/5

So x = -11/5 and y = 24/5

5 0
3 years ago
Question#1 please. Thankyou
Angelina_Jolie [31]
The area of a rectangle is L x W, so 9(5+x) is the formula for the area in factored form. It can be simplified to 45+9x
5 0
3 years ago
Other questions:
  • Lin and Jen each thought of a number. Lin thought of a 2-digit number. Jen’s number is 7 times as big as Lin’s. But, if Lin writ
    6·1 answer
  • Lake Michigan is the fifth largest lake
    13·2 answers
  • In rectangle ABCD, AB=8 units and BC=15 units. Find BD
    13·2 answers
  • 14 fluid ounces= ___cups
    5·1 answer
  • Hiiii can you help me ?
    9·2 answers
  • 96g + 80f and explain
    12·2 answers
  • A lawn care company uses the formula c(h)= 9h+15 to find the cost c to perform services for h hours.
    12·1 answer
  • What is the correct written expression for the variable expression: (3 - x)/7
    10·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B6%7D%7B7%7D%20%5Cdiv%207%20%5Cfrac%7B1%7D%7B2%7D%20%5Cdiv%20%3D%20" id="TexFormul
    13·1 answer
  • A brick of aluminum weighs 19,745 grams and has the following dimensions: length 29 cm, height 15 cm, and width 51 mm. What is t
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!