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
Bogdan [553]
3 years ago
7

Use elimination to solve and match each system of equations to the correct solution.

Mathematics
1 answer:
dalvyx [7]3 years ago
3 0

Answer:

2x-9y=-51

2x-3y=-9

subtract question ii from i we get

-6y = -42

y =7

put value of y in 1

2x - 63 = -51

2x= 8

x=4

You might be interested in
Will is 34​% taller than​ Wanda, so​ Will's height is​ ____% of​ Wanda's height.
insens350 [35]
The easiest way for me to do this is too set their heights to actual numbers. Say Wanda is 100 feet tall (which I know isn’t a thing, but 100 is always an easy number for percentages.) If will is 34% taller than 100 feet, 1% is 1 foot, so Will is 134 feet tall. 134 / 100 is 134%, so will’s height is 134% of Wanda/s height. Hope this helps!
4 0
2 years ago
Read 2 more answers
A rectangular playground has an area of 768 square meters. If the width of the rectangle is 32 meters, find the length.
Lapatulllka [165]
The length is 24 because 768 is the are and to find area you would do length x width but in this case the width has already been told so you have:
32 X____=768
so you do 768÷32= 24 so that's your answer sorry for such a long explanation which probably wasn't necessary but oh well!
4 0
3 years ago
How to do a exponent with the negative base?
tatiyna
Examples :
(-2)^3 = (-2)(-2)(-2) = - 8

(-3)^4 = (-3)(-3)(-3)(-3) = 81

(-1)^5 = (-1)(-1)(-1)(-1)(-1) = -1

** if the exponent is an even number, the answer will be positive. if the exponent is an odd number, then the answer will be negative

** but keep in mind....if the negative is not included with the base..
-(5^2) = - 25....but (-5^2) = 25
3 0
3 years ago
Read 2 more answers
If x = 7+3 root 5 by 7 - 3 root 5 , find the value of x^2 + 1 by x^2
Vesnalui [34]

Answer:

6 because why not

Step-by-step explanation:

6 0
2 years ago
Which of the following plans include a savings plan as a part of the insurance? Whole Life Universal Life Variable Universal Lif
worty [1.4K]

Answer:

Which of the following plans include a savings plan as a part of the insurance?

Whole Life

Universal Life

<u>Variable Universal Life</u>

All of the above

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • A piece of wire 6 m long is cut into two pieces. One piece is bent into a square and the other is bent into an equilateral trian
    8·1 answer
  • Which of the following is written as a rational function?
    15·2 answers
  • the values of x and y vary diectly and one pair of values are given write an equation that relates x and y if x=-5 and y=10
    15·1 answer
  • in 9 weeks, kai practiced tuba for 24 hours. at this rate, how much will he practice the next 2 weeks
    10·1 answer
  • How can you determine the shape of a graph
    7·1 answer
  • The average height of an ostrich is 255 cm.
    5·1 answer
  • If f(r)= 3.14 r^2 what is f(3)
    8·1 answer
  • How many meters is 7.3 kilometers? 1km=1000m
    8·2 answers
  • I dont know how to do this can someone answer it and help me understand how to do this
    13·1 answer
  • Determine the probability of choosing a pair need help
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!