Answer:
Each balloon costs $1
Each banner costs $2
Step-by-step explanation:
First of all, let's write down the equation from this problem.
Let "y" be the cost of the ballon, and let "x" be the cost of a banner. Then the following is true from the question...
4y + 2x = 8
6y + x = 8
Now since both of them are equal to 8 both of them are equal to each other, and so we can get the following equation...
4y + 2x = 6y + x
2x - x = 6y - 4y
x = 2y
Now if we substitute 2y instead of x in one of the previous equations we will obtain...
6y + x = 8
6y + 2y = 8
8y = 8
y = 1
From the equation x = 2y we know that...
x = 2y
x = 2(1)
x = 2
pls answer i need help
Answer:
the first one is 2/4 and 3/6
the second one is 4/6 and 6/8 and the equation is
3/4 times 4/6 = .5
Step-by-step explanation:
What are two equivalent fractions for 4/12??
Answer:
g
Step-by-step explanation:
g
help me asap mathematics 7th grade
Answer:
The pizza is 8.99 per pizza.
Step-by-step explanation:
3x - 4 1/2 = -19 1/2
What is the volume of a cylinder with a radius of 4 yards and a height of 6 yards
Answer:
301.59 yards
Step-by-step explanation:
Write the equation of the line given a slope of 0 through the point (5, -7)
Answer:
y=-7x+5
Step-by-step explanation:
Which answer describes the type of sequence?
1, 6, 7, 13, ...
geometric
O arithmetic
neither arithmetic nor geometriC
Answer:
neither arithmetic nor geometric
Step-by-step explanation
I got it wrong and assuming they don't have a common ratio/ constant difference
PLEASE HELP ITS TIMED!!!
Order from least to greatest -1/2, -3/4, -2/5
Answer:
-2/5, -1/2, -3/4
Step-by-step explanation:
You have to have the same denominator.
-10/20, -15/20, -8/20
Hope this helps!
Ben made a sundial in his backyard by placing a stick with height 6 in. straight into the ground, and marking the hours in the grass. To test it, he checks the time each day when the sun makes an angle of 30° or 60° with the ground. Select all the possible lengths of the shadow when Ben checks the sundial.
A. 12 in.
B. 23√ in.
C. 8 in.
D. 63√ in.
E. 22√ in.
Answer:
B and D
Step-by-step explanation:
is the relation a function (0, 3), (4, 0), (8, 0), (4, -3), (-5, 8)
Answer:
hlo guys Gavin magnus here
Subtract h - 1 from
h+4.
Oh+5
o h+5
1h
4
h+3
Answer:
Step-by-step explanation:
(h + 4) - (h-1) = h + 4 + h*(-1) - 1*(-1)
= h + 4 - h + 1
= h - h + 4 + 1
= 0h + 5
please send help, and explain if you can <333
Answer:
it would be B
Step-by-step explanation:
d=(0-(-5)^2+(-2-(-3)^2
d=(5)^2+(1)^2
d=25+1
d=26
Find the slope of the line passing through the pair of given points.
(5, 7) and (2,7)
Answer:
m = 0
Step-by-step explanation:
[tex]m = \frac{7 - 7}{5 -2} \\m = \frac{0}{3}\\m = 0[/tex]
i need help with my math problems
Answer:
Step-by-step explanation:
X Y X Y
0 3 0 5
1 7 1 8
2 11 2 11
3 15 3 14
4 19 4 17
A parking meter charges $0.25 for the first 30 minutes and $0.1 for every additional 5 minutes. If Megan is charged $1.35 for parking at this specific meter, how many minutes did she park for?
Answer:
I got 140 minutes
Step-by-step explanation:
Simplify to find the quotients . 24. ) (a ^ 8)/(a ^ 3)
Answer:
a^5 is the answer
Step-by-step explanation:
a^8 / a³
= a^8 - 3
= a^5
Answer:
a^5
Step-by-step explanation:
A small submarine travels at a speed of 2.4 hours how far will the submarine travel in 0.25 hours
Answer:
If the math adds up the submarine will travel 6 km in 25 hours
Step-by-step explanation:
i think u pretty much just multiply :)
What does it mean to SOLVE a system of linear equations?
Answer:
In solving a system of linear equations, we try to find values for each of the unknowns that will satisfy every equation in the system
Step-by-step explanation:
(2t2 - 36t + 162). - (t-9)
Answer:
2t^2 - 37t + 171
Step-by-step explanation:
distrube the - to the (t-9) and then combine like terms
Answer:(2t2 + 27t) - 162 = 0
STEP
2
:
Trying to factor by splitting the middle term
2.1 Factoring 2t2+27t-162
The first term is, 2t2 its coefficient is 2 .
The middle term is, +27t its coefficient is 27 .
The last term, "the constant", is -162
Step-1 : Multiply the coefficient of the first term by the constant 2 • -162 = -324
Step-2 : Find two factors of -324 whose sum equals the coefficient of the middle term, which is 27 .
-324 + 1 = -323
-162 + 2 = -160
-108 + 3 = -105
-81 + 4 = -77
-54 + 6 = -48
-36 + 9 = -27
-27 + 12 = -15
-18 + 18 = 0
-12 + 27 = 15
-9 + 36 = 27 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -9 and 36
2t2 - 9t + 36t - 162
Step-4 : Add up the first 2 terms, pulling out like factors :
t • (2t-9)
Add up the last 2 terms, pulling out common factors :
18 • (2t-9)
Step-5 : Add up the four terms of step 4 :
(t+18) • (2t-9)
Which is the desired factorization
Equation at the end of step
2
:
(2t - 9) • (t + 18) = 0
STEP
3
:
Theory - Roots of a product
3.1 A product of several terms equals zero.
When a product of two or more terms equals zero, then at least one of the terms must be zero.
We shall now solve each term = 0 separately
In other words, we are going to solve as many equations as there are terms in the product
Any solution of term = 0 solves product = 0 as well.
Solving a Single Variable Equation:
Step-by-step explanation:
I don’t get this help
Answer:
its the 4th one
Step-by-step explanation:
PLEASE HELP!!!!!!!!!!
Answer:
y+1 1/4=3 3/4 or y.1 1/4=3 3/4
Step-by-step explanation:
36= W/4 what does w equal ???????????///
Answer:
W=144
Step-by-step explanation:
36=w/4
36 times 4=w/4 times 4
144=W
Answer:
144
Step-by-step explanation:
144/4=36 36x4=144
If you combine 4x and -2x how many x's will we have left?
Answer:
Step-by-step explanation:
4x+(-2x)=2x
The average temperature in the North Pole in the summer is 32 degrees F. The average temperature in the North Pole in the winter is -40 degrees F.
Kevin says that the difference between these two temperatures is 8 degrees.
Identify the error in Kevin's thinking. Determine the difference between these two temperatures, and explain or show your process.
Answer:
he counted from 32 to 40 , and not to -40
Step-by-step explanation:
the difference is 72 degrees
Jackson invested $750 into a savings bond that earned 3% interest each month. At the same time, he also began saving money in a savings account. The value of the savings account is represented by f(x) = 1,000 + 25x, where x represents the number of months since the account was opened. At the end of how many months did the value of the savings bond first begin to exceed the value of the savings account?
Answer:
33 Is the ANSWER
A quart of milk costs $1.89. What is the total cost for 20 quarts of milk?
Plssss helpppp!!!!!!!
Answer:
Subtract 6 from both sides so the equation equals 0 ;)
Step-by-step explanation:
Answer:
Subtract 6 from both sides!
Step-by-step explanation:
I got it wrong at first 0-0
Find the slopes form two points (-1, -2) and (3,-4)
Answer:
m=-1/2
Step-by-step explanation:
use y=mx+b
Help please! Due in 30 minutes!
Use complete sentences to answer the following question.
1. Choose one of the properties of exponents (for example, the Power of a Power Rule). Explain how the property works, and provide an example of the property.
Answer:
Product of a Power: When you multiply exponentials with the same base, you add their exponents (or powers). Power to a Power: When you have a power to a power, you multiply the exponents (or powers). Quotient of Powers: When you divide exponentials with the same base, you subtract the exponents (or powers).
Step-by-step explanation:
Answer:
What is the Power rule?
The Power rule tells us how to differentiate expressions of the form x^nx
n
x, start superscript, n, end superscript (in other words, expressions with xxx raised to any power):
\dfrac{d}{dx}x^n=n\cdot x^{n-1}
dx
d
x
n
=n⋅x
n−1
start fraction, d, divided by, d, x, end fraction, x, start superscript, n, end superscript, equals, n, dot, x, start superscript, n, minus, 1, end superscript
Basically, you take the power and multiply it by the expression, then you reduce the power by 111.
Example: What is the derivative of x2 ?
For x2 we use the Power Rule with n=2:
The derivative of x2 = 2x(2-1)
= 2x1
= 2x
Answer: the derivative of x2 is 2x
The number of fish in a lake decreased by 25% between last year and this year. Last year there were 60 fish in
the lake. What is the population this year? If you get stuck, consider drawing a diagram.
There are
fish in the pond.
HELLPPP
Answer:
theres
4
Step-by-step explanation: