answer.
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
Svetradugi [14.3K]
2 years ago
7

8x + 6y = 10

Mathematics
2 answers:
juin [17]2 years ago
6 0
It could be D or C
The system has two solutions
x = .8 y = .6

OR if you think about it , (x=.8 y=.6) could be considered THE solution.
I would go with choice C

Nitella [24]2 years ago
5 0
Here, Multiply second equation by 2, 
10x - 6y = 4.4

Now, Add both the equations, 
18x = 14.4
x = 14.4 / 18
x = 0.8

Substitute it in 2nd equation, 
5(0.8) - 3y = 2.2
-3y =2.2 - 4
y = 1.8/3
y = 0.6

Solution of the system of Equation is: (0.8, 0.6)

In short, Your Answer would be Option C

Hope this helps!
You might be interested in
The equation y=19x relates proportional quantities x and y. What is the value of x when y is 4? Enter your answer in the box
Igoryamba

\frac{4}{19}

8 0
2 years ago
Read 2 more answers
Brock is training for a Crossfit competition. He began the training completing pull-ups and box jumps origanally, his training p
siniylev [52]

If the adjusted ratio was 2:7, then

2x is the number of pull-ups

and

7x is the number of box jumps.

You can state that since he completed 63 box jumps at the end of his training, then

7x=63,

x=9

and

2x=18.

The total number of exercises performed is 2x+9x=18+63=81.

As at start the ratio was 5:4, then

5y was the number of pull-ups

and

4y was the number of box jumps.

Therefore, 5y+4y=81,

9y=81,

y=9

and 5y=45, 4y=36.

Answer: Initially: 45 pull-ups and 36 box jumps. At the end: 18 pull-ups and 63 box jumps.

8 0
2 years ago
A pebble is tossed into the air from the top of a cliff. The height, in feet, of the pebble over time is modeled by the equation
Charra [1.4K]

Answer:

96

Step-by-step explanation:

The maximum height reached by the pebble modeled by the quadratic function,

h(t)=-16t^2+32t+80, can be found by finding the vertex.

Let's first find the t-coordinate of the vertex . The max height will correspond to this value of t which means we have to find the h(t)-coordinate.

When comparing h to at^2+bt+c, we see that:

a=-16

b=32

c=80

We need to evaluate the following to find the t-coordinate of the vertex:

t=\frac{-b}{2a}

t=\frac{-32}{2(-16)}

t=\frac{-32}{-32}

t=1

So now to find the correspond h(t)-coordinate, we will need to replace t in -16t^2+32t+80 with 1:

-16(1)^2+32(1)+80

-16(1)+32+80

-16+32+80

16+80

96

5 0
2 years ago
If Karim has eight male cousins and twelve female cousins,what fraction of his cousins are female?
kramer
It’s 29b disinfect r Fido’s w. R fndjdjdis
6 0
2 years ago
As an architect, you are designing a new house. a window has a height between 150  cm  and 160  cm and a width between 82  cm  a
dalvyx [7]
We can write the statement above using inequalities. Let's name:

x: The <span>height of a window (in cm)
y: The width of a window (in cm)

Then writing those statements as equations:

</span>150 \leq x \leq 160

70 \leq y \leq 82

So the area is given by the equation:

A=xy in cm^{2}

10500 \leq A \leq 13120

So there are a variety of figures we can choose as long as the area is between 10500cm^{2} and 13120cm^{2} 



3 0
2 years ago
Read 2 more answers
Other questions:
  • How do i solve this??
    6·1 answer
  • In the diagram, m CD = 128° and m DA = 76°. What is m∠ABC?
    11·2 answers
  • Sarah wants to study the time it takes to complete a lab in a regular biology course compared to the time it takes to complete a
    6·2 answers
  • Your poor health causes you to miss one work day every two weeks. You do not get paid when you are out sick. You normally work 8
    13·1 answer
  • Exactly how many planes contain points J, K, and N?<br> 0<br> 1<br> 2<br> 3
    10·2 answers
  • Which number line models the expression 1/8-(-3/4)
    12·1 answer
  • 8. Peter and his partner are conducting a physics experiment on pendulum motion. Their 30-cm
    8·1 answer
  • A sports car and a minivan run out of gas and are pushed to the side of the road. Which is easier to push, and why?
    10·2 answers
  • Victor has been wrongfully accused of helping a gorilla escape from the zoo. The probabilities of the court rulings are as follo
    15·1 answer
  • Isaac and Shonda can rent a canoe for $12 per hour and a mountain bike for $9 per hour. Together, they have $138 to spend. Let c
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!