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
Wittaler [7]
3 years ago
15

Solve system by elimination 8x-8y=-16 -8x-7y=-29

Mathematics
1 answer:
Gnesinka [82]3 years ago
6 0
Add these together.
You get -15y=-45
So y=3

Now plug in to first equation.
8x-8(3)=-16
8x-24=-16
8x=8 so x=1

Check both values in second equation.
-8(1)-7(3)=
-8-21=-29

It works...so x=1, y=3
You might be interested in
Which expressions is equivalent to 3x (2x– 3)?
Vesnalui [34]

Hi ;-)

3x(2x-3)=3x\cdot2x-3x\cdot3=\\\\=\boxed{6x^2-9x}=\boxed{-9x+6x^2}

5 0
2 years ago
Read 2 more answers
Please help me someone smart
Elis [28]

Answer:

When A is positive there is a minimum vertex.

Step-by-step explanation:

When a parabola is positive the opening goes upwards. When a parabola is negative it goes downwards. The negative sign on the A coefficient means that you reflect your equation across the x-axis

6 0
3 years ago
Read 2 more answers
What's the function rule, I don't understand how to write a function rule using the ordered pairs in this table
pickupchik [31]
The rule is plus four because every time you take your x value and add four it equals your y value. 
4 0
3 years ago
The square below represents one whole. Express the shaded area as a fraction, a decimal, and a percent of the whole. Fraction: D
Igoryamba

Answer:

Fraction = \frac{19}{50}

Decimal = 0.38

Percent = 38%

Step-by-step explanation:

Number of shaded rectangles = 38

Total number of rectangles = 100

Fraction represented by the shaded area = \frac{\text{Number of blocks shaded}}{\text{Total number of blocks}}

                                                                     = \frac{38}{100}

                                                                     = \frac{19\times 2}{50\times 2}

                                                                     = \frac{19}{50}

Decimal form of the shaded area = \frac{38}{100} =  0.38

Percent of the shaded area = \frac{38}{100} = 38%

7 0
3 years ago
How to tell whether its a prime or composite number
Lunna [17]
Prime numbers have only 2 factors 1 and its number for example:
2, 3, 5, 7, 11, 13, 17, 19, 23

Like this 1*2. Or 3*1

Composite numbers have more than two factors for example :
0, 4, 6, 8, 9, 10, 12, 14 15, 16..

For example 0 has many factors
0 times 3 0times 4

8 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify -11j+16-22j-27+5j
    7·2 answers
  • Which equation represents the function on the graph?
    11·2 answers
  • A person who weighs 105 Kg plans to loose 9Kg during the first 3 months of a diet, 6Kg during the next 3 months, 4Kg during the
    12·1 answer
  • There are 30 people in the class, 15 play a sport. what percentage of the class play a sport.
    7·1 answer
  • A museum opened at 8:00 a.M. In the first hour, 350 prople purchased admission tickets. In the second hour, 20% more people purc
    10·1 answer
  • PLSSS HELP I AM BEGGING!!! For each triangle, find the measure of the missing angle.
    5·1 answer
  • Fitness Classes cost £6 per person. The table shows the number of people who go to the classes on Thursday, Friday and Saturday.
    8·1 answer
  • What<br> is the vaule of the expression to if f = 7?
    11·1 answer
  • a poster project 24 inches by 36 and it is being enlarged by a scale factor of 150 what are the dimensions of the new poster​
    14·1 answer
  • Nvm I don't need any help
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!