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Determine if (-2, -1) is a Solution or
Not a Solution to the linear system.
y = 3x + 5
x + y = -3
Please answer!!!
Answer:
It is a Solution
Step-by-step explanation:
y=3(-2)+5 y=-1
(-2)+y=-3 y=-1
Solve for x
-2x + 4 = 6x - 12
Answer:
x=2
Step-by-step explanation:
-2x+4=6x-12 Add 2x to both sides.
+2x +2x
4=8x-12 Add 12 to both sides.
+12 +12
16=8x Divide by 8 on both sides.
/8 /8
2=x
Hope this helps you out and have a great day (～^▽^)～
Answer:
x=2
Step-by-step explanation:
-2x + 4 = 6x - 12
First add 2x to each side: 4=6x−12+2x
Now simplify 6x-12+2x: 4=8x-12
add 12 to both sides: 4+12=8x
Simplify 4+12: 16=8x
Divide both sides by 8: 16/8
you end up with x=2
Hope this helps :)
Is 3⁵ the same as 3 • 5? Please Explain
Answer:
No. 3^5 = 3 * 3 * 3 * 3 * 3, which does not equal 3 * 5.
Answer:
no
3^5 is the same as 3x3x3x3x3, which equals 243 compared to 15
Step-by-step explanation:
If a transformation causes the angle measures of a figure to change are the figures similar? Why or why not
No, similar figures need to have corresponding sides proportional and corresponding angles congruent.
No, similar figures must have corresponding angles congruent.
Yes, the figures are similar as long as the corresponding angles are proportional.
Yes, the figures are similar as long as the corresponding sides are still proportional.
Answer:
No, similar figures need to have corresponding sides proportional and corresponding angles congruent.
Step-by-step explanation:
Solve the inequality 171 > -6x, and graph the solution. What does the graph look like?
Answer:
x>-57/2 (the answer)
Step-by-step explanation:
171>-6x
-6x<171
the massive rear tire of a tractor rotates and moves the tractor 100 yards across a field in 4 minutes. Determine the linear velocity of the outer edge of the massive tire. Is the linear velocity of the outer edge of the smaller tire faster or slower than the massive tire? Which has a greater angular velocity?
9514 1404 393
Answer:
a) 25 yards per minute
b) linear velocity is the same
c) smaller tire has greater angular velocity
Step-by-step explanation:
a) The linear velocity of the edge of the tire is the same as the linear velocity of the tractor: (100 yd)/(4 min) = 25 yd/min
__
b) All parts of the tractor have the same linear velocity. The outer edge of the smaller tire is moving at the same linear velocity.
__
c) Because the smaller tire must make more turns to cover the same distance in the same time, its angular velocity (turns/time) is greater.
The smaller tire has greater angular velocity.
A line passes through (0,4) and (3,0). Which equation does not represent the equation of this line?
a
y - 0 = - 4/3 (x - 3)
b
y = - 4/3x + 3
c
y - 4 = - 4/3 (x - o)
d
x/3 + y/4 = 1
e
4x + 3y = 12
Answer:
A
Step-by-step explanation:
use both points to find the slope using the equation
y2-y1/x2-x1, so , -2-4/2-0 = -6/2 = -3. slope or m = -3
then the y int can be any y point, so either -2 or 4. in this case they used 4.
Marie purchased a $49.00 gift for a baby shower. She uses a coupon that offer 20% off. how much will Marie SAVE on the gift card after the coupon
Answer: $39.2
Step-by-step explanation:
9.80 saved
Step-by-step explanation:
49.00 x .20 = 9.80
A boat is traveling a distance of 90 km at a speed of 30 km/s, how long will it take to reach its destination?
PLEASE SHOW WORK!
Answer:
3 sec
Step-by-step explanation:
Answer:
[tex]3[/tex] seconds
Step-by-step explanation:
[tex]90 \div 30 = 3[/tex]
It will take [tex]3[/tex] seconds for the boat the reach its destination.
The Sales in thousands of a new type of product, headphones that block out annoying people, are given by S(t)= 230-60e^-0.1t, where t represents time on months.
A. Find the sales at the time when t=4 months.
B. AFter how many months will sales be equal to $220,000.
Answer:
A) 15.33
B) 843333.33
Step-by-step explanation:
Anna is x years old and her sister is 5 years older. How old was her sister 5 years ago?
(principal test RSM)
Answer:
[tex]x[/tex]
Step-by-step explanation:
[tex]x + 5 - 5 = x[/tex]
Village lanes bowling alley charges $2.00 just to rent a pair of shoes and $3.50 for each game bowled. If you spend a total of $16, then how many games were bowled?
PLEASE HELP!!!!! I THINK IT IS 1/6 BUT I DONT KNOW THE QUESTION IS FIND THE SLOPE OF Y=1/6X +3/2 OR SEE THE ATTACHMENT ILL GIVE 30 POINTS AND BRAINLIEST
the grocery bill is $76.00 what is the total bill with a 7% sales tax?
Answer:
the correct answer is 81.32
Step-by-step explanation:
76 times .07 is 5.32 plus 76 is 81.32
Answer:
81.32
Step-by-step explanation:
Take the cost of the item ($76.00) and and multiply it by the percentage as a decimal (0.07) to get your sales tax (5.32)
how many square feet of outdoor carpet will we need for this hole?
Answer:
The area of the carpet is 38 square feet.
Hope this helps. Le me know if you need anything else.
Kennedy and Amaya want to make a scale drawing of Central Park. They want to use the scale of 1in : 1ft. Can you change that scale to a scale WITHOUT UNITS?
Erin rolled a number cube with sides labeled 1 through 6. She rolled the number cube 400 times and recorded each result. About how many times could Erin expect to roll a 4?
Answer:
about 67 times
Step-by-step explanation:
hope this helps :)
100,85,70,_,40
What is the number pattern?
Answer:
55
Step-by-step explanation:
its subtracting 15 each time
Answer:
55 and the pattern is 15... i think
Step-by-step explanation:
Ava has a collection of 200 coins. How many coins represent 5% of her collection?
Please help me out
Answer:
[tex]10 coins[/tex]
Step-by-step explanation:
[tex]5\%[/tex] is equal to [tex]0.05[/tex] which is just [tex]5 per 100[/tex]. In the number [tex]200[/tex], there are 2 hundreds, so the answer would be 10 (coins that represent [tex]5\%[/tex] of her collection. You could also do [tex]0.05×200=10[/tex].
factoring is the opposite of what operation
Answer:
Factoring is the opposite of multiplying (or using the distributive property to multiply.)
Step-by-step explanation:
Can someone explain this to me please
Answer:
40
Step-by-step explanation:
Carter's speed is 60, and Vitor's speed is 100. To find how much slower, Carter was, subtract Vitor's speed from Carters. 40 is the difference.
Answer:
Carter is about 17% slower than vitor
Step-by-step explanation:
Carter is 14/60 = 23.33/100
Vitor is 40/100
#1. (3 points) Use the commutative property to write an expression that is equivalent to 3x – 6 – 8x.
Answer: -(5x+6)
Step-by-step explanation:
What is the first step in solving this quadratic equation? x^2+5x=6
a) combine like terms
2) set each factor equal to zero
c) subtract 6 from both sides to get it equal to zero.
d) factor
Answer:
c) subtract 6 from both sides to get it equal to 0
Step-by-step explanation:
help me
Mount St. Helens lost about 1300 feet of height in the May 18, 1980, volcanic eruption.
About how many meters of height did it lose?
A. about 3900 meters
B. about 39 meters
c. about 3.900 meters
D. about 400 meters
E. about 40 meters
what is
g(x)= 7/8(7) - 1/2
30, 24, 35, 84, 60, 42, 29, 16, 68, 47, 22, 74, 34, 21, 48, 91, 66, 51
33, 29, 18, 31, 54, 75, 23, 45, 25, 32, 57, 40, 23, 32, 47, 67, 62, 23. In order
Answer:
16, 18, 21, 22, 23, 24, 25, 29, 30, 31, 32, 33, 34, 35, 40, 42, 45, 47, 48, 51, 54, 57, 60, 62, 66, 67, 74, 75, 84, 91
find ratio of := 900 cm to 12cm
ovhovientos ochenta y siete
At a real estate agency, an agent sold a house for $339,000. The commission rate is 6.5% for the
real estate agency and the commission rate for the agent is 25% of the amount the real estate
agency gets. How much did the agency make on the house? How much did the agent earn in
commission?
The agency made on the house,
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Plz help !!!!!!!!!!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
x^2 + 7x + 5x + 35
7x : II
5x: III
35: IV
3 people can deliver 1000 letters in 30 minutes.
How long would it take 1 person to deliver all 1000 letters?
If there are 5 people delivering would it take more or less time?
How long will take 5 people to deliver 1000 letters?
Answer: It would take 1 hour and 30 minutes for one people do it.
If 5 people do it would take less time. If there are 5 people delivering the letters it would take them 12 minutes ti deliver all 1,000 letters.
