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
kakasveta [241]
3 years ago
15

I need help atleast an equation to get started please

Mathematics
1 answer:
aliina [53]3 years ago
4 0
Let x = 50% and y = 13%

We need 5 liters of 27.8% acid.
A) x + y = 5
B) .50x + .13y = (.278 * 5)
We multiply A by -.5
A) -.5 x + -.5 y = -2.5 then we add it to B
B) .50x + .13y = (<span>1.39 </span>)
-.37y = -1.11
y = 3
x = 2
So, we need 2 liters of 50% and 3 liters of 13%.

<span><span /></span>
You might be interested in
what if erika and Bradley want to hike 14 miles each day? how many days will they hike exactly 14 days?
katrin2010 [14]
You just need to multiply 14 miles by 14 days so the answer is 196
3 0
3 years ago
Read 2 more answers
The chairlift at a ski resort has a vertical rise of 3200 feet. if the length of the ride is 1.2 miles, what is the average angl
Aleksandr-060686 [28]
(see attached graphic)
1.2 miles = 6,336 feet

IF the length is measured along the ground then:
tan (angle) = opp / adjacent
tan (angle) = 3,200 / 6,336
<span>tan (angle) = 0.505050505</span>
angle = 26.796 Degrees

IF the length is measured from the ground to the top then:
sin (angle) = opp / hypotenuse
<span>sin (angle) = 0.505050505</span>
angle = 30.335 Degrees





6 0
3 years ago
Which sequence of transformations will verify that
AVprozaik [17]

Answer:

C) △ABC is moved onto △A'B'C' after translating −16 units horizontally and 6 units vertically, and then reflecting across the x-axis.

Explanation: I did USA Test Prep.

7 0
3 years ago
HELP ME PLEASEEEEEEEEEE
arsen [322]

Answer:

(5,-4)

Step-by-step explanation:

Move the point T three units to the right. It's (x, y), so (5,-4) is the answer.

4 0
3 years ago
Find f(-2).<br> A. 4<br> B. 8<br> C. 10<br> D. 20
il63 [147K]

Answer:

D. 20

Step-by-step explanation:

First, we need to plug in -2 to all the spots where x are. The new equation we have then is f(-2)= 2(-2)^2 - 3(-2) + 6. Then, we plug in the exponent to get 2(4) - 3(-2) + 6. We can then multiply to get 8 + 6 (since the three was negative as well) + 6, which equals 20.

6 0
3 years ago
Read 2 more answers
Other questions:
  • if Tara spends 219 a month on her car payment and she makes $3,200 a month what percentage of her monthly income is spent on her
    9·1 answer
  • Help me with this answer
    14·1 answer
  • A rocket is launched from atop a 105-foot cliff with an initial velocity of 156 ft/s. The height of the rocket above the ground
    15·2 answers
  • mary can buy 12 oranges at store A for $3.84 and 15 oranges for $5.00 at store B.Which store has the better unit cost?
    12·1 answer
  • Find the values of m and b that will create a system of equations with no solution. Check all that apply.
    12·1 answer
  • If 29 of a song plays in 13 minute, what fraction of the song plays in 1 minute? Write a number sentence involving division that
    11·1 answer
  • On an alien planet with no atmosphere, acceleration due to gravity is given by g = 12m/s^2. A cannonball is launched from the or
    14·1 answer
  • 40 points if helped, question is in the picture
    13·1 answer
  • What is the value of x? image below
    13·2 answers
  • Rose bought 5 pencils for $0.69 each, 3 notebooks for $ 2.75 each, and a pocket dictionary for
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!