Answer:
-5.6
Step-by-step explanation:
first distribute the 2.5
also convert the 2/5 to decimal (0.4) because it's hard to work with both decimal and fraction
2.5y + 2.5*0.4 = -13
2.5y +1 = -13
y = -14/2.5 = -5.6
If 7x−6y=2 and −2x−y=3 are true equations, what would be the value of 5x−7y?
Answer:
-55
Step-by-step explanation:
7x-6y=2
-2x-y=3
by substitution method
y=3+2x
7x-6(3+2x)=2
7x-18-12x=2
-5x=20
x=-4
-2(-4)-y=3
8-y=3
-y=3-8
y=5
therefore the value of x=4 and that of y=5
5x-7y=5(-4)-7(5)
=-20-35
=-55
A 28 foot ladder is leaning against a building. If the
base of the ladder is 7 feet from the wall, what is the
height of the building?
Answer:
the height of the building would be about 27.111 or rounded 27
Step-by-step explanation:
fadil sells televisions. He earns $15 a fixed amount for each television and an additional if the buyer gets an extended warranty. If sells 12 televisions with extended warranties, he earns 1140
. How much is the fixed amount earns for each television?
Hey What is -5t > 10
Answer: 10 (ten) is an even number
following 9 and preceding 11
Step-by-step explanation:
What is the value of the expression 10(n-6) when n = 14?
A. 46
B. 56
C. 80
D. 134
Two cars travel the same distance. Car 1 travels at 50 mph and car 2 at 65 mph. If it takes car 1 one more hour to travel than car 2, how far did the cars travel?
Can someone help me? Thanks! :)
Answer:
60
Step-by-step explanation:
70+50=120
180-120=60
2, 8, 9, 20, 22, 25, 5
Mean ??
Mode ??
Median ??
Answer:
the mean is the sum of them all divided by the number of terms.
mean: 13
the mode is the element that occurs MOST in the data set.
mode: none
the median is the middle value of all of the numbers.
median: 9
Answer:
Step-by-step explanation:
Mean:91/7=13
Mode:no mode
Median:9
Round 25,000 to the nearest thousand
Answer:
25,000
Step-by-step explanation:
Since there are no other numbers before the thousands place, it can be determined that the current thousands place will remain the same.
The graph shows the relationship between the number of pizzas and the number of people the pizzas will feed at a party How
many pizzas will take to feed 40 people?
10
x
B
12
20
Answer:
12 homie
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
simplify each expression.
(4 - 2i) - (-3 + i)
Answer:
2i - (-3 + i)
Step-by-step explanation:
I think this is it. Sorry if it's wrong
Answer:
7 -3i
Step-by-step explanation:
Simplify by combining the real and imaginary parts of each expression
What is the solution to the system of equations?
2x+3y=26
3x+5y=40
1. X=10, y=2
2. X=10, y=-2
3. X=-10, y=-2
4. X=-10, y=2
Answer:
1. x = 10 , y = 2
Step-by-step explanation:
hope it helps ☺️
What is...
1. 4x = -36
2. 5x - 15 = 50
3. 4(x + 2) - 17 = 35
4. 6x + 12 = 4x - 18
5. 1/2 (4x - 10) + 5 = x - 11
Step-by-step explanation:
1Ans: 4x = -36
× = -36/4
× = -9
2Ans: 5x -15 = 50
5x = 50 + 15
5x = 65
x = 65/5
x = 13
3Ans: 4(x + 2) -17 = 35
4x +8 -17 = 35
4x -9 = 35
4x = 35 +9
4x = 44
x = 44/4
x = 11
4Ans: 6x +12 = 4x -18
6x -4x = -18 -12
+2x = -30
x = -30/+2
x = -15
5Ans: 1/2 (4x -10) +5 = x -11
0.5 (4x -10) +5 = x -11
2x -5 +5 = x -11
2x = x -11
2x - x = -11
1x = -11
x = -11/1
x = -11
(PLEASE HELP ME I BEG OF YOU)
Kevin and cannot eat on $135 a month salary there any commission for each sale they make and the ratio of Kevin and Kenneth commission is 3:4 if they sell Products worth $610 each in March and Kevin Owens at 12% commission how much did each of them??
A. Kenneth makes $232.60
B. Kevin makes $208.20
C. Kevin makes $73.20
D. They both make $440.00
E. Kenneth makes $219.60
Answer:
I think the asnwer A or B !!
Step-by-step explanation:
HELP GUYS PLS THANK YOU
Answer :
Step-by-step explanation:
yellow cab company because they charge less for miles
Smallest to greatest
1/3 0.6 0.721
Identify the model that shows 4 items being divided equally among 3 people. How much will each person have
Answer:
1 1/3 items
Step-by-step explanation:
Total number of items = 4 items
Total number of people = 3 people
4 items = 3 people
To know the number of items each person will get, we can write;
x items = 1 person
Divide both expressions
4/x = 3/1
3x = 4
x = 4/3
Express as mixed fraction;
4/3 = 1 1/3
Hence each person will receive 1 1/3 items
MMA-A Unit 3 packet answer key? Lmk
Answer:
yea its right here
Step-by-step explanation: sike
Math
Skip count by tens and fill in the missing numbers.
550, 660 570, 580, 590,
610,
Answer:
560, 600, 620, 630, 640, 650
Step-by-step explanation:
Just counted from 10, I guess.
Keenan measured a community college and made a scale drawing. The scale of the drawing
was 1 centimeter : 9 meters. If the actual width of a building at the college is 90 meters, how
wide is the building in the drawing?
Answer:
The answer is 10 centimeters
Step-by-step explanation:
If 1 cm on the map = 9 meters. 10cm would be 90 meters. Hope this helps!
Answer:
drawing = 10 cm for the width.
Step-by-step explanation:
1 cm / 9 m = x / 90 m
If the meters go on the bottom in the left ratio, they must go on the bottom on the right ratio. In this case the cm is the unknown and it must go on the top with no units.
Cross multliply
9 m * x = 90m * 1cm
Divide by 9
9m * x/ 9m = 90 m * 1 cm / 9m Notice the units (m) cancel out
x = 10 cm
A plant's height is 1 meter 10 centimeters. How tall
is the plant in millimeters?
Answer:
1100
Step-by-step explanation:
Answer:
1100 millimeters
Step-by-step explanation:
What is the factored form of this expression? 7- 12x+36 А. (x-12)(x-3) B. (x-6)(x+6) c. (x+6) 2 D. (x-62
Answer:
Step-by-step explanation:
factored form of x^2 - 12x + 36
(x - 6)(x - 6) or (x - 6)^2
answer is D
A fish is 12 Meters below the surface of the ocean. what is it's evelation
Need help with this pls!!
Answer:
In my looks its c!
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
The arrow pointing up is longer than the others.
Is this the right answer correct me if im wrong what is m
What is the number 0 gonna be?
12 Step-by-step explanation:cause 6x2 = 12
Answer: change the number 0 to 2. the correct answer is 792 and 780.
Step-by-step explanation:
WILL GIVE BRAINLIEST!!!!!!
Your grandfather would like you to invest in his company. He guarantees that if you invest in the stock of his company you will earn 15% on you r money every year. If you invest $100 and your grandfather is right, how much money will you have after 20 years? Round to the nearest cent.
Answer:
i=0.099
PMT (annual payment needed) $11,309
PV of perpetuity
PV=11309/0.099
=$114,232.32
hope that helps
pls mark brainliest <3
Answer:
ok so i think it is i=0.099
Step-by-step explanation:
i took the test. the test said it was that answer so yea
PLEASE HELP ME ASAP!!! (you will get 20 points!!!)
Name the longest side of ∠DEF.
D=62° E=108° F=10°
Answer: the longest side of a triangle is always the opposite side of the largest angle
Step-by-step explanation:
Line segment DF ☺️
3.
Susan has a balance of $110 in her school lunch account, and she spends $6 per day for
lunch. Her sister Evelyn has $83 in her lunch account, and she spends $4 per day for lunch. In
how many days will Susan's lunch account balance be less than Evelyn's?
Answer:
i may be entirely wrong but evelyn has more days
susan=18
evelyn=20.75 or 21 if rounded
PLEASE HELP. WILL GIVE BRAINLIEST AND WORTH 60 POINTS.
Solve each equation using substitution. Answers are on the right and questions are on the left.
Answer:
Q1. No solutionQ2. (5, 6)Q3. Infinitely many solutionsQ4. No solutionQ5. (2, 3)Step-by-step explanation:
Q1.
y = -1/3x - 1x + 3y = -12Solution
x + 3(-1/3x - 1) = -12x - x - 3 = -12-3 = -12No solution
Q2
y = 2x - 4y = x + 1Solution
2x - 4 = x + 1x = 5y = 6(5, 6)
Q3
y = -3x + 36x + 2y = 6Solution
6x + 2(-3x + 3) = 66x - 6x + 6 = 66 = 6Infinitely many solutions
Q4
- 5x + y = 1- 10x + 2y = -2 ⇒ -5x + y = -1Solution
1 = -1No solution
Q5
y = 1/2x + 2y = x + 1Solution
1/2x + 2 = x + 11/2x = 1x = 2y = 3(2, 3)