Answer:
-33>x
Step-by-step explanation:
Simplify the equation by combining the like terms
5x2+3x 2−x−4x
Answer:
8x^2-5x
Step-by-step explanation:
If the equation is 5x^2+3x^2-x-4x, then that should be the answer :)
The concession stand sells hot dogs and soda during the pee-wee football games.John bought 6 hot dogs and 4 sodas and paid $6.70. Jessica bought 4 hot dogs and 3 sodas and paid $4.65. At what prices are the hot dogs and sodas sold? Show your work.
Answer: Hotdog cost $0.75
Price of soda = $0.55
Step-by-step explanation:
Let the price of hot dogs be x.
Let the price of sodas be y.
6x + 4y = 6.70 ...... i
4x + 3y = 4.65 ....... ii
Multiply equation i by 4
Multiply equation ii by 6
24x + 16y = 26.80 ........ iii
24x + 18y = 27.90 ......... iv
Subtract iii from iv
2y = 1.10
y = 1.10/2
y = $0.55
Price of soda = $0.55
From equation i,
6x + 4y = 6.70
6x + 4(0.55) = 6.70
6x + 2.20 = 6.70
6x = 6.70 - 2.20
6x = 4.50
x = 4.50/6
x = $0.75
Hotdog cost $0.75
Jose earned 5h + 5 dollars for h hours and Alex earned 8h – 10 for h hours mowing lawns. If they earned the same amount
of money, then how many hours did they work?
They worked for
type your answer
Answer:
5 hours
Step-by-step explanation:
This is a classic pre-algebra question.
[tex]5h+5=8h-10\\5=3h-10\\15=3h\\h=5[/tex]
Combine Like Terms:
9) 20y +4 + 2y
10. 5x – 2y + 12 z + 6y
11. 6x - 4 + 3y - 2y - x + 10
Answer:
9. 20y + 2y to get 22y +4
10.-2y - 6y = 4y to get 5x + 12z +4y
11. 5x +1y + 6
Step-by-step explanation:
If a - is next to a number then it becomes negative and if it has a letter like y add or subtract it’s to the other y
How many 1/3 of a hour to make a hour?
Answer: 3
Step-by-step explanation:
[tex]\frac{1}{3}[/tex] × 3 = 1
45/14=x/14 what is “x”
Answer:
45
Step-by-step explanation:
x=45, just get rid of the denominators when they're the same
¿Cuál es el resultado de restar la segunda ecuación de la primera? -7x-y=0 7x+8y=-6
Find the dot product of U and V
u=7i, v = -2i + 5j
Answer:
-14
Step-by-step explanation:
Multiply the is together. Multiply the j's together. Add the answer. The answer is a scalar.
(7 × -2) + (5 × 0)
= -14
Help please I’m need help bad.
Answer:
A. 18
Step-by-step explanation:
Here the numbers are being divided by 7
so
126 / 7 = 18
Jane drew a point that was 3 units to the right of the y-axis and 5 units above x-axis what ordered pair for this location
Answer:
(3,5)
Step-by-step explanation:
If you imagine a grid in your head, moving 3 units to the right is the same as 3 on the x axis, and 5 units above the x axis is the same as 5 on the y axis. X goes before y in an ordered pair, so the answer would be (3,5). Hope this helps!!
A hot dog vendor at Wrigley Field sells hot dogs for $1.50 each. He buys them for $1.20 each. All the hot dogs he fails to sell at Wrigley Field during the afternoon can be sold that evening at Comiskey Park for $1 each. The daily demand for hot dogs at Wrigley Field is normally distributed with a mean of 40 and a standard deviation of 10.a. If the vendor buys hot dogs once a day, how many should he buy?b. If he buys 52 hot dogs, what is the probability that he will meet all of the day’s demand for hot dogs at Wrigley?
Answer:
43 ; 0.88493
Step-by-step explanation:
Using the Zscore formula :
Zscore = (x - m) / s
m = mean ; s = standard deviation
Profit = $1.5 - $1.2 = $0.3
Loss = $1.2 - $1 = 0.2
Cummlative probability :
Profit / (profit + loss)
0.3 / (0.3 + 0.2) = 0.3 / 0.5 = 0.6
To obtain the x, at Z at 0.6 = 0.26
m = 40 ; s= 10
Hence,
0.26 = (x - 40) / 10
0.26 * 10 = x - 40
2.6 = x - 40
2.6 + 40 = x
x = 42.6 `; 43 approximately
Probability of meeting day's demand at Wrigley
x = 52
P(x < 52) :
Zscore = (52 - 40) / 10
P(Z < 1.2)
Z = 0.88493
A is the poin 3,5 and b is the point 0,k if the distance of ab is 5 units find the possible value of k
Answer:
K is either 9 or 1
Step-by-step explanation:
Sqrt((0 - 3)² + (k - 5)²) = 5
Square both sides
(0 - 3)² + (k - 5)² = 5²
(0 - 3)² + (k - 5)² = 25
-3² + (k - 5)² = 25
9 + (k-5)(k-5) = 25
9 + k² - 5k - 5k + 25 - 25 = 0
k² - 10k +9 = 0
k² - 9k - k + 9 = 0
k(k - 9) - 1(k - 9) = 0
k - 1 = 0 ; k = 1
k - 9 = 9; k = 1
K = 9 or k = 1
K is either 9 or 1
A bacteria is tripling every 10 days. If there is a 4 bacteria in a sample, how long with it take to reach 1 million bacteria?
aldin, joel,marcus and lyle want to share 1/2 of a large pizza equally. how much much will each boy eat?
Answer: they will get 1/3 each of the half or how much is remaining cut into 3
Step-by-step explanation:
What is the area of the figure?. Single choice.
(10 Points)
18 cm squared
26 cm squared
34 cm squared
18 cm squared
Answer:
34 cm squared
Step-by-step explanation:
Complete it to full rectangle and calculate the area by multiplying width and length then calculate the area of red area and subtract it from the full rectangle's area
9×6 - 5×4 = 34 cm^2
tell me the correct answer our i report saying false answer
A box of cereal states that there are 93 calories in a 3/ 4 cup serving.what is the unit rate for calories per cup?How many calories are there in 4 cups of cereal
Answer:
i love you :)
Step-by-step explanation:
93 ÷ 3 = 31 calories
31 per cup
31 × 4 = 124 calories
124 in 4 cups
the quotient of w and 10 is equal to 7
Answer:
8
Step-by-step explanation:
if the slope of a line is 6, find y when given (5, -9) and (7, y)
The slope of the linear model is 1.5. What does this
mean in terms of the maximum noise level and the
number of people?
Answer:
Noise level increase by 1.5 per unit increase in number of persons
Step-by-step explanation:
The slope, m of a linear model is the value which represents the unit change in the dependent variable due to a unit chahe in the independent dependent.
The maximum noise in decibel is the dependent variable while the number of persons is the independent variable. Hence, the Coefficient of the independent vatiabkw is the slope and gives the rate of change in the dependent variable per unit Change in the independent variable.
Please help me thankyou
Answer:
S + 2 = F
Step-by-step explanation:
The number of sides of the end face plus 2 gives you the number of faces of the prism.
Which is a complete list of each term of each term in the expression 15 + 20x?
A. 15: 1, 3, 5, 15
20x: 1, 2, 4, 5, 10, 20, x
B. 15: 1, 3, 5, 15
20x: 1, 2, 4, 5, 10, 20
C. 15: 3, 5
20x: 4, 5, x
D. 15: 1, 3, 5
20x: 1, 2, 4, 5, 10, x
Let's talk......................
..........
What is the multiplier for decreasing something by 3%?
Answer:
The answer is 0.03
Step-by-step explanation:
Please mark brainliest
PLZ HELP FAST I NEED IT RN
Answer:
16 units
Step-by-step explanation:
Answer:
16 units
Step-by-step explanation:
JM- 3 units long
JK- 5 units wide
KL-3 units long
ML-5 units long
Perimeter is the sum of all 4 sides meaning:
3+5+3+5=16
16 units is the answer
mZQRS = 179º and m_QRG= 105º.
Find m GRS.
Answer:
angle m GRS = angle m QRS - mQRG
mGRS = 179 - 105
mGRS = 74
hope it helps
A city's population has increased 40% in the last 5 years and is now 53,782 people.
What was the population 5 years ago?
Given:
A city's population has increased 40% in the last 5 years and is now 53,782 people.
To find:
The population 5 years ago.
Solution:
Let x be the population 5 years ago.
A city's population has increased 40% in the last 5 years.
So, present population is
[tex]x+x\times \dfrac{40}{100}=x+0.4x=1.4x[/tex]
It is given that the present population is 53782.
[tex]1.4x=53782[/tex]
[tex]x=\dfrac{53782}{1.4}[/tex]
[tex]x=38415.7142857[/tex]
[tex]x\approx 38416[/tex]
Therefore, the population 5 years ago was about 38416.
What is the equation of the line passing through (-2,-7) (4,23)
Answer:
The equation of line Passing through (2,3) and (4,7)
The slope of line is
4−2
7−3
=
2
4
=2
The equation of line is y−7=2(x−4)
y−7=2x−8
2x−y−1=0
Step-by-step explanation:
Find the area of the shape shown below.
10
20
4
Answer:
240
Step-by-step explanation:
Can someone please help me I really need help
Answer:
2
Step-by-step explanation:
common sense
You don't have a driver's license yet, so you have to walk to the store. You can walk 1.5 miles in 24 minutes. If it
took you 32 minutes to walk to the store, how far away is the grocery store?
Answer:
Units:
Blank 1:
Blank 2: