Answer:Steven used 9 $0.02 stamps and 6 $0.10 stamps
Step-by-step explanation:
let number of $0.02 stamp be =x
let number of $0.10 stamp be =y
so that the number of stamps used can be expressed as
x+y=15
and the total price of stamps used equaling $0.78 be expressed as
0.02x + 0.10y =0.78
Solving
x+y=15----1
0.02x + 0.10y =0.78---2
from equation 1 , x =15-y, putting the value of x into equation 2
0.02(15-y) + 0.10y =0.78
0.3 -0.02y + 0.10y = 0.78
0.3 + 0.08y=0.78
0.08y=0.78-0.3
y=0.48/0.08 =6
y =6 stamps
Putting bthe value of y =6 into equation 1
x+6=15
x=15-6 =9
Steven used 9 $0.02 stamps and 6 $0.10 stamps
Figures A-G are all images of figure W. Which figures can you
not map figure Wonto using a single rotation around a vertex
translation, or reflection across the x-or y-axis? Select all
that apply
A figure A
B figure B
C figure
D figure D
E figure E
F figure F
G figure G
Answer:
figure d
Step-by-step explanation:
it is the smartes and most common answer
Find the surface area of the cylinder. Please help
the length is 12in
the diameter is 5in
227.77in²
Hope this helped you- have a good day bro cya)
Multiply (-5)^3 (raised to the third power)
Answer:
- 125
Step-by-step explanation:
[tex](-5)^{3}[/tex]
= - 5 × - 5 × - 5
= 25 × - 5
= - 125
Answer:
-125
Step-by-step explanation:
-5^3= -5x-5x-5
-5^2=-5x-5= 25
25x-5=-125
f(x) =3x/x+2
Evaluate.
F(v) = ?
Explain..
I will give Brainliest!
Answer:
5
Step-by-step explanation:
f(v) means your x value is v so substitute X=v in f(x)
[tex]f(v) = 3 \frac{v}{v} + 2 \\ 3 + 2 \\ 5[/tex]
La gran pirámide de Guiza se terminó de construir alrededor del año 2570 antes de nuestra era ¿Cuántos milenios han transcurrido desde entonces?
Answer: La Gran Pirámide de Giza se terminó en 2490 a. C.
Tiempo necesario para construir la Gran Pirámide de Giza: 2550 a 2490 a. C.
Chicken Itza se construyó alrededor del año 600 d.C.
Step-by-step explanation:
Kate's Pattern
Andy's Pattern
Kate and Andy made the following
patterns.
X
у
Х
у
1
2
1
4
Which statement is true?
2
4
2
8
3
6
3
12
4
8
4
16
) Kate's y-values increase at 3 times the rate of Andy's y-values.
® Kate's y-values increase at 2 times the rate of Andy's y-values.
© Andy's y-values increase at 2 times the rate of date's y-values.
D Andy's y-values increase at 3 times the rate of Kate's y-values.
Answer:
Answer is C
Andy's Y value increases 2 times more
Answer:
B)
Step-by-step explanation:
If you look at Kate's y column, you will see that her pattern goes by 2,4,6 and 8.
It increases by 2.
At the same rate, Andy's increases by 4.
Therefore, B would be the correct answer.
Question 4 (5 points)
Determine the quotient of (22.8 x 10-3) = (5.7 x 10-6). Write your answer in
scientific notation.
A) 4 x 10-6
B) 4 x 10-9
C) 4 x 10-3
X
OD 4 x 10
X
Right answer will get brainlst
Answer:
b
Step-by-step explanation:
A bird was perched on a tree at a height of 12 feet. The bird then saw food on a branch below and
dropped down 4 feet. What is the current height of the bird?
Marcos tem 44 carrinhos em sua coleção e comprou mais 13. Com quantos carrinhos Marcos ficará?
Answer:
Marcos ficará com 57 carros.
Step-by-step explanation:
44+13=57
Aliás, 57 carros é muito carro!
simplify 5 to the power of three over 5 to the power of seven
Answer:
1/625, or 0.0016 is the answer.
Solve:
1 < ( x + 5.5 ) / 2
Full working out please
Also does X have to be on the Left side always?
Answer:
x > -3.4
Step-by-step explanation:
1 < (x + 5.5) / 2
first multiply each side by 2
2 < x + 5.5
Then subtract 5.5 from each side
-3.4 < x
x has to be on the left so you switch the hole equation around to get
x > -3.4
A cargo ship is 704 feet long. If 1.1 inch represents 13 feet. How long is the ship in the model? Round your answer to the nearest tenth if needed.
Answer:
59.57
Step-by-step explanation:
704 / 13
= 54.1538461538
54.1538461538 x 1.1
= 59.5692307692
Instead of having a cake, Paul wants to make ice cream sundaes at his next birthday party. He thinks each person will eat 2 cups of ice cream, and there will be 24 people at his party. How many 1-gallon tubs of ice cream should he buy?
Answer:
8
Step-by-step explanation:
24÷2=16×1=16÷2=8
am not sure I think the answer is also 16 so look at other people answer
Paul should buy 3 gallons
How to calculate unit price of something?Unit means 'single entity', the fundamental constructing block. Usually, it is 1 in mathematics and science.
Thus, unit price of something is price of 1 thing.
Thus, suppose we're taking about price of mangoes, then unit price will denote the price of 1 mango.
There are 16 cups in a gallon, and if each person will eat 2 cups, and there are 24 people, multiply 24 by 2 to get the number of cups.
24 x 2 = 48.
Then, divide that by 16 (the number of cups in a gallon) to how many gallons.
48 ÷ 16 = 3
Therefore, he needs 3 gallons.
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Can someone pls help
Answer:
hol up let me doit
v
Step-by-step explanation:
whats the next number
2, 4, 12, 44, 172, ____
Answer:
6798
Step-by-step explanation:
you multiply the number
Which equation represents a line that passes through (5, 1) and has a slope of 1/2?
Oy-5= 1/2(x-1)
oy- į = 5(x-1)
oy-1 = 1/2(x–5)
oy-1 = 5(x-1/2)
Answer:
C. y - 1 = 1/2(x - 5)Step-by-step explanation:
Use the point- slope form:
y - y₁ = m(x - x₁)Substitute know values:
y - 1 = 1/2(x - 5)The matching choice is C
The correct equation which represents a line that passes through (5, 1) and has a slope of 1/2 is,
y - 1 = 1/2(x - 5)
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
A equation of a line that passes through (5, 1) and has a slope of 1/2.
Now, Use the point- slope form:
⇒ y - y₁ = m(x - x₁)
Hence, Substitute all the values:
y - y₁ = m(x - x₁)
y - 1 = 1/2(x - 5)
Thus, The correct equation which represents a line that passes through (5, 1) and has a slope of 1/2 is,
y - 1 = 1/2(x - 5)
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3. You drove 75 miles/hour for 8 hours. How far did you travel?
Answer:
800
Step-by-step explanation: 75 x 8
Jacob and his team start at the 45 yard line but they get a flag and have to go back 15 yards. The next play Jacob ran the ball 12 yards before getting tackled. How many yards does Jacob's team have to go to get to the touchdown zone?
please helpppppppppppppppppppppppp
Answer:
12,000
Step-by-step explanation:
1,306+ 7,247 + 3,418 = 11,971
11,971 rounds up to 12,000
is 5x+y^2=25 a linear equation
Answer:
I don't think it is
Step-by-step explanation:
I checked with desmos graphing calculator and the line produced is a parabola. I believe the y^2 made it into a parabola
No, 5x+y^2=25 is not a linear equation.
What is termed as the linear equation?A linear equation is one in which the variable's highest power is always 1. A one-degree equation is another name for it. A linear model in one variable has the standard form Ax + B = 0. In this equation, x is a variable, A is a coefficient, and B is constant. A linear equation throughout two variables has the standard form Ax + By = C.For the given equation;
5x+y^2=25
the highest power of the equation is 2.
Thus, the given equation is a quadratic equation or 2 degree equation.
Therefore, the given equation is not a linear equation.
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Select the correct answer.
100
n
In the figure, lines mand n are parallel to each other. Lines p and q are also parallel to each
m
other. What is the value of x?
Answer:
80
Step-by-step explanation:
in the figure above, angle 100 degrees is corresponding to the angle co - interior to angle x
that is
if we put an angle that is at the upper left of x, we can call that y which is corresponding to 100 degrees
since y is corresponding to 100 degrees, it automatically becomes the same as 100 degrees
therefore y=100
now, from the first line above, we know that x and y are co-interior which means that they both add up to 180 degrees
that is
x+y=180
we know that y = 100
therefore,
x+100=180
collect like terms and
x = 180-100
therefore,
x= 80
thank you!!
he recipe makes enough stew for 6 people, and the ingredients cost $9.75. How much would it cost to serve 24 people?
A student solved the problem using the proportion StartFraction 6 over 9.75 EndFraction = StartFraction c over 24 EndFraction Explain the error in this proportion.
Answer:
24 times 9.75 = $234
Step-by-step explanation:
Answer:
It would cost $39 to serve 24 people
Step-by-step explanation:
If the recipe makes enough stew for 6 people, and the ingredients cost $9.75, then for 24 people it will cost $x. You can write this statement as
6 people - $9.75,
24 people - $x.
Or as proportion,
6/24=9.75/x
Find x:
6·× =9.75·24,
x=9.75·24/6=9.75·4=39
Answer: It would cost $39 to serve 24 people
The points (6, 9) and (5, 8) fall on a particular line. What is its equation in slope-intercept form?
Answer:
y=x+3
Step-by-step explanation:
Start with the slope equation [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
Since the first point is actually further along the x-axis that x-value becomes [tex]x_{2}[/tex] and its corresponding y-value is [tex]y_{2}[/tex]
[tex]\frac{9-8}{6-5}[/tex]=[tex]\frac{1}{1}[/tex]
The slope for the equation is just one so now find the y-intercept by rearranging the slope-intercept equation.
y=mx+b
y-mx=b
Now Substitute either point in to find b
9-1(6)=b
9-6=b
b=3
Your y-intercept is 3 so now we can write the slope-intercept equation for the two points:
y=x+3
Graph y=-4/7x+1. 10 points
Answer:
Step-by-step explanation:
Slope= - 4/7
y-intercept: 1
The slope is negative. 4 down from y=1 and seven to the right and 4 up from y=1 and 7 to the left. You only need two points to trace a line.
Look at this graph:
АУ
100
90
80
70
60
50
40
30
20
10
0
10 20 30
40 50 60
70
80 90 100
What is the slope?
Answer:
The slope is 4 or 4/1.
Step-by-step explanation:
Since these are all in numbers evenly divisible by 10, we can go ahead and make this easier by dividing everything by 10. When we do this, we can see a point crossing an intersection at (3,1), or if you left it, (30, 10). Next, we can see another point crossing another intersection at (4,5) or (40, 50). Since we have two points that are easy for us to subtract, we can use the slope formula. The formula is as follows: y2-y1 / x2-x1. We can pick which of these we want to be 1 or 2, but whichever one we pick has to be 1 or two on both the top on the bottom. for example, I did (50-10) / (40-30). That gets us 40/10. If you divided by ten in the first place, you would get 4/1. From there, if you have the bigger answer, you need to simplify to simply 4. The shorter answer doesn't need to be simplified because we already simplified. I hope this helps!
A rock band made a concert tour of 13
cities. They traveled an average of
1,970 miles per week for 6 weeks. .
How far did they travel altogether?
Answer:
11820
Step-by-step explanation:
https://msquaredmathschool.files.wordpress.com/2017/04/block2key.pdf
Find the slope of the line represented by each table of values
Answer:
slope is zero
Step-by-step explanation:
every y=9 then the line is parallel to x axiom
what's A ∩ B' in its simplest form?
Answer:
Step-by-step explanation:
Find g(f(x)), given f(x)=3x2−x+1,g(x)=2x
Answer:
6x²-2x+2
Step-by-step explanation:
For g(f(x)), we have to first do f(x), and then substitute it into the "x" in g(x)
So, f(x) = 3x²-x+1
We need to substitute the "x" in g(x) with this entire thing
So, g(x) = 2x
When we substitute f(x) into it, it instead becomes 2(3x²-x+1)
Next, we have to expand the brackets, and doing so gives us the following:
6x²-2x+2
So that becomes our final answer!
Let me know if it makes sense! :)
Tina babysits children in her neighborhood. When Tina is asked her rate, she tells her neighbors that she charges $15 for the first hour and $8 for each hour after. If Tina's neighbor asks Tina to babysits for 4 hours, how much will Tina earn? Write an equation to model and solve the problem. Write the answer as an ordered pair and explain the meaning of the ordered pair.
The amount charged is an illustration of a linear equation.
Tina charges $39 for 4 hours
The given parameters are:
[tex]Base = 15[/tex] --- amount charged for the first hour
[tex]Rate = 8[/tex] --- amount charged for the extra hours
If Tina babysits for 4 hours, it means that:
She will charge $15 for the first hour$8 for the extra 3 hoursSo, the total charges is:
[tex]Total = 15 + 3 \times 8[/tex]
[tex]Total = 15 + 24[/tex]
[tex]Total = 39[/tex]
The ordered pair is (4,39)
It means that:
She charges $39 for 4 hours
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