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
bulgar [2K]
3 years ago
9

The Value of x in the system of equation at the right is -2 what is the value of a? use elimination to help you find the value.

ax + 4y = 6
2x - 4y = -16
Mathematics
1 answer:
sammy [17]3 years ago
7 0

2x-4y=-16
ax+4y=6      +
--------------------
2x+ax=-10;     for x=-2, 
2(-2)+a(-2)=-10
-2a=-10+4
a=-6/-2
a=3
You might be interested in
A bus covers a distance of 2.45 km in 2 min. What is the speed of bus?​
Vladimir [108]

Answer:

The speed of the bus is 74.242 kilometers per hour.

Step-by-step explanation:

Let suppose that bus runs at constant speed and that speed is measured in kilometers per hour. Then, the speed of the bus (v), in kiometers per hour, is determined by following kinematic expression:

v = \frac{s}{t} (1)

Where:

s - Travelled distance, in kilometers.

t - Time, in hours.

If we know that s = 2.45\,km and t = 0.033\,h, then the speed of the bus is:

v = \frac{s}{t}

v = 74.242\,\frac{km}{h}

The speed of the bus is 74.242 kilometers per hour.

7 0
3 years ago
Help fast big bonus if get right due soon !!
diamong [38]
Multiply the the numbers for each locket and see which number is greater
5 0
4 years ago
Read 2 more answers
Ishaan is 3 times as old as Chris and is also 14 years older than Chris. How old is ishaan?
hram777 [196]

Answer:We are also given that Ishaan is 14 years older than Christopher, so I is also 14 more than c. This gives that I = c + 14. Since I = 3c and I = c + 14, we have that 3c is equal to c + 14, giving the equation 3c = c + 14.

well this is from google and just so u know the letters stand for the names

8 0
4 years ago
Can someone plz help me answer the hole question
stiks02 [169]

Answer:

He needs one more quart

Step-by-step explanation:

4 0
3 years ago
During a science experiment, your teacher does a demonstration. She takes a
zysi [14]

Answer:

less mass

Step-by-step explanation:

The product has less mass because some of its mass got burned. Hope this helps!

5 0
3 years ago
Read 2 more answers
Other questions:
  • The rate of a country's per capita sales of bottled water for the period 2007–2014 could be approximated by s(t) = 0.29t2 − t +
    11·1 answer
  • A coffee mixture has beans that sell for $0.20 a pound and beans that sell for $0.68. If 120 pounds of beans create a mixture wo
    5·1 answer
  • Michael took his younger brother to the movies. Michael paid regular price, but it cost $2 less for his brother at the child pri
    13·2 answers
  • Consider the following frequency distribution:
    8·1 answer
  • Guys i really need your help i have this awesome friend who is cool sometimes but she calls me names and pretends to like me bot
    11·2 answers
  • Which expression below are equivalent to 2(2x + 1)
    15·1 answer
  • Help me solve this please!
    6·1 answer
  • Select ALL the correct answers. Consider the graph of function g below. Determine which sequences of transformations could be ap
    9·1 answer
  • The population of DeSoto rose an
    11·1 answer
  • |(2,9)<br> J (79)<br> 00 -<br> H(25)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!