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
PIT_PIT [208]
3 years ago
7

Need help please due tommorw

Mathematics
1 answer:
Kisachek [45]3 years ago
6 0

Answer:

Solution (4,3)

Step-by-step explanation:

2x-7y= -13

<u>(8x-7y=11)x-1</u>

2x-7y= -13

-8x +7y= -11

\frac{-bx}{-6} =\frac{-24}{-6}

x= 4

__________

2x-7y= -13

2(4)-7y=-13

8-7y= -13

subtract 8 from both sides

\frac{-7y}{-7} =\frac{-21}{-7}

divide by -7

y= 3

hope it helps..

have a great day!!

You might be interested in
13. Given the following historical data and weights of .5, .3, and .2, what is the three-period weighted moving average forecast
Ostrovityanka [42]

Answer:

b. 144.8

Step-by-step explanation:

When calculating the moving average estimate of an observation , each of the observations are usually computed with the same weighted . In some cases, it is  beneficial to assign different  weight on the observations  such that the observation closer to the time period being forecast, has higher weight.  This is refer to as weighted moving average technique. The sum of the individual weight in a weighted moving average technique must equal to 1.

The three-period weighted moving average forecast for period 5 = 144*0.5 + 148 *0.3 + 142 *0.2 =  144.8

4 0
3 years ago
15. What's the sum of 3/8 and 1/16?<br> 1/6 7/16 4/24 1/4
allsm [11]

Answer:

7/16

Step-by-step explanation:

1. you have to have the same denominator

7 0
3 years ago
Read 2 more answers
T models the temperature (in degrees Celsius) in New York City when it's t hours after midnight on a given day. Match each state
Klio2033 [76]

Answer:

Please check explanation

Step-by-step explanation:

Here, we want to do a matching.

We shall be matching the given statements with the features we have on the graph

Hence we shall be looking closely at the graph to answer the questions.

The y-intercept is the point at which the graph touches the y-axis

And it was at -3 degrees celsius at the beginning of the day.

The temperature was above zero between 8am and 8pm. The matching statement is that it is increasing or decreasing interval

We can see that the graph rose from 8am before it finally comes to zero at 8pm

Positive or negative interval matches with it was getting warmer between 2am and 2pm.

While temperature was lowest at 2am, we can see a peak at 2pm.

8 0
3 years ago
A car park is full. 1/3 of the cars leave.60% of the cars are red. There are 174 red cars. How many cars are left in the car par
juin [17]

Answer:

290

Step-by-step explanation:

60% of ⅔X = 174

60/100 × 2/3 × X = 174

⅖X = 174

X = 435

⅔X = ⅔×435

290

290 cars are left in the parking,

145 cars left

5 0
3 years ago
Read 2 more answers
Find the sum (6x2+8x+8)+(12x3-12x2-2x)
Maslowich
 The sum is 12x3+18x2-10x+8
7 0
3 years ago
Other questions:
  • ANSWER PLZ QUICK AND FAST
    12·1 answer
  • Find the quotient 9 3/5 8/15
    11·1 answer
  • 5x+18/8 = x/4 <br> Solve for x
    8·1 answer
  • 6x+y=5 Helpppppp me awser this asap
    7·2 answers
  • What number is halfway between -15 and 20
    13·1 answer
  • Oceanside Bike Rental Shop charges 12 dollars plus 6 dollars an hour for renting a bike. Write an expression for the cost of ren
    11·1 answer
  • One number is eight less than a second number. Five times the first is 6 more than 6 times the second. Find the numbers.
    11·1 answer
  • In Algebra you learned that Difference of Perfect Squares is x^2 - 25 = (x+5)(x-5)
    14·1 answer
  • Express each of the following percentages as decimals<br> 633%<br> solution for class 7
    14·2 answers
  • Write equation in Vertex Form with a Vertex of (5,-2)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!