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
omeli [17]
2 years ago
6

WILL MARK BRAINLIEST!

Mathematics
1 answer:
mihalych1998 [28]2 years ago
8 0

Answer:

x= -1, y= 1

Step-by-step explanation:

2x + 6y = 4.........(1)

8x - 5y = 45........(2)

multiply equation (1) by 4

8x + 24y = 16......(3)

subtract equation (3) by (2)

29y = 29

y = 1

then substitute y=1 in equation (1)

2x + 6(1) = 4

solving for x

x = -2/2 = -1

You might be interested in
What is the probability of drawing yellow marble followed by a red marble from a bag containing 12 yellow marbles, 14 red marble
Anna11 [10]
Is yellow so their are 13 yellow marbles.
3 0
2 years ago
Read 2 more answers
2|4x-1|=38 I need to solve this
umka21 [38]
First you have to have the absolute value isolated so the 2 has to be divided. Then set up the two cases and solve.

5 0
3 years ago
The recipe for Perfect Purple Water says, "Mix 8 ml of blue water with 3 ml of red water." Jada mixes 24 ml of blue water with 9
cluponka [151]

Answer:Jada will get same shade as Perfect Purple Water

Step-by-step explanation:

STEP 1

To get the right  recipe for Perfect purple water, every new mixture must have an equivalent ratio as the ideal mixture

The ideal mixture is given as

8ml  blue water and 3 ml red water.

Step 2

Andre mixes 16ml blue water with 9ml red water

\frac{8ml}{3ml} is not equivalent to \frac{16ml}{9ml}

Because dividing Andre's mixture  by a common value  will  not give  the equivalent ratio of the ideal recipe

\frac{16ml}{9ml}  \frac{/}{/}  \frac{3}{3} =\frac{5.3ml}{3ml}  

Jada mixes 24ml blue water with 9ml red water

\frac{8ml}{3ml} is equivalent to \frac{24ml}{9ml}

Because dividing Jada's mixture  by a common value  gives the equivalent ratio of the ideal recipe

\frac{24ml}{9ml}  \frac{/}{/}  \frac{3}{3} =\frac{8ml}{3ml}  

This shows that Jada got the right recipe and will get  same shade as Perfect Purple Water but in a higher quantity, 3 times the right recipe for  Perfect Purple Water

7 0
3 years ago
stefan is three years younger than his sister katie. The sum of Stefans age three years ago and 2/3 of katies age at that time i
sammy [17]

If x is the age of S

And y is the age of K

So we have x=y+3

And the second equation is x-3 + 2/3)y = 12

We have to solve the system

x-y=3

x+2/3y=15

we find x=10.2 and y=7.2

<span>so Katie is 7 </span>

3 0
3 years ago
Read 2 more answers
Find quadratic polynomial which best fits the function f(x)=e^x and x=0, in the sense that g(0)= f(0), and g'(0) = f'(0), and g"
Dmitriy789 [7]
Let g(x)=ax^2+bx+c. Then

\begin{cases}g(0)=c\\g'(0)=b\\g''(0)=2a\end{cases}

Meanwhile, since f(x)=e^x, you have f(0)=f'(0)=f''(0)=e^0=1.

It follows that a=\dfrac12, b=1, and c=1, so that the quadratic fit for f(x)=e^x that satisfies the given points is

g(x)=\dfrac12x^2+x+1

Note that this is just the second-order Taylor polynomial for e^x about x=0.
3 0
3 years ago
Other questions:
  • Solve for x<br> HELLLLP​
    5·1 answer
  • A company that sells annuities must base the annual payout on the probability distribution of the length of life of the particip
    14·1 answer
  • I'm really struggling with this question. Please help!
    5·1 answer
  • What is the missing step in this proof
    6·1 answer
  • If someone is 1.83 meters tall, what is his or her approximate height in inches
    9·1 answer
  • Which line has a y-intercept of 3?
    14·2 answers
  • Bonnie earns $455 a week, and she works 5 days a week. what is her daily wage?
    5·1 answer
  • What us the measure of the missing angle?
    10·1 answer
  • lance placed $5,200 in an investment account with a 6.5% interest rate. After how many years will he double his initial investme
    15·1 answer
  • What is the slope-intercept form 10x-7y=-8
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!