Answer:
The added both 8x+2x when they were suppose to subtract 8x-2x
Step-by-step explanation:
8x+22= 2x+42
6x= 42-22
6x= 20
x= 3.3 repeating
Answer:
step 2
Step-by-step explanation:
8x + 22 = 2x +42
8x - 2x +22 =42
6x + 22 = 42
6x = 42 -22
6x = 20
x = 20÷ 6
x = 10/3
Yesterday jack drove 30 1/2 miles. He used 1 1/4 gallons of gasoline. What is the unit rate for miles per gallon?
Answer:
24.4 miles per gallon or 24 2/5 miles per gallon.
The unit rate of Jack's car is 10.8 miles per gallon.
What is a unitary method?A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.
Given, Yesterday jack drove 30 1/2 miles. He used 1 1/4 gallons of gasoline.
∴ The unit rate for miles per gasoline can be obtained if we divide the total no. of miles by the total no. of gasoline used which is,
= (13.5/1/25).
= 10.8 miles per gallon.
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The rational number -17 is equal to what fraction?
Answer:
-17
Step-by-step explanation:
-17 is a prime number.
HURRY! Which expression represents the sixth term in the binomial expansion of (5y + 3)10?
10C5(5y)5(3)5
10C6(5y)4(3)6
510C5(y)5(3)5
510C6(y)4(3)6
Answer:
B. 10C6(5y)^4(3)^6
Step-by-step explanation:
The general binomial expansion formula is expressed using the formula:
(x+y)ⁿ = nCr x^{n-r}y^r
Given the equation (5y+3)^10
To get the sixth term of the expansion, we will compare the general formula given with the question
On comparison, x = 5y y = 3 and n = 10. Since we need the sixth term of the sequence, r will be equal to 6 i.e r = 6
Substitute the variables into the binomial formula above to get the sixth term.
(5y+3)^10 = 10C6 (5y)^10-6 (3)6
(5y+3)^10 = 10C6(5y)^4(3)^6
Hence the sixth term in the binomial expansion is 10C6(5y)^4(3)^6
Answer:
A on edge
Step-by-step explanation:
Help asap ill award brainliest and everything plz!!!
A traveler covered 4/5 of his journey with bicycle and the rest of the distance on foot. If the whole journey was 160 km, how much distance did he cover on foot?
Answer:
128 km.
Stage 1: Find value of 4/5.
4/5 = 128 of 160 (128 km.)
Hope it helps!
Answer:
32 kmStep-by-step explanation:
given:
A traveler covered 4/5 of his journey with bicycle and the rest of the distance on foot. If the whole journey was 160 km,
find:
how much distance did he cover on foot?
solution:
total jorney = 160 km
4/5 (160) + (x) = 160
(x) = 160 - 128
x = 32
therefore, the distance travelled on foot is 32 km
1. Write 0.2 as a fraction.
Let x=
10x=
TE
10x - X=
14
NE
9x =
x=
So 0.2 is equal to
Answer:
2/10
Step-by-step explanation:
0.2 is equal to 2 tenths which is 2/10
simplify the expression: 14-|-10+3|
Answer:
7
Step-by-step explanation:
14-|-10+3|
First find what is in the absolute value
14-|-7|
Take the absolute value
14 - 7
7
Evaluate the expression
7^2-3^2x4
Answer:
13
Step-by-step explanation:
Answer:
7^2=49
3^2=9
49-9*4
49-36=13
can someone please help?? (assume that no variable equals 0)
..................
.
Answer:
What is your question?
Step-by-step explanation:
All you wrote was
..................
.
Solve the system of equations by
y= 5x + 8
y = 8x + 9
2x - 11 = -8x + 14
Simplify
Answer:
x = 2.5
Step-by-step explanation:
2x - 11 = -8x + 14
Add 8x to both sides
10x - 11 = 14
Add 11 to both sides
10x = 25
Divide both sides by 10
x = 2.5
Answer:
x=2.5 (hope this helps)
Step-by-step explanation:
2x-11=-8+14
+11 +11
_________
2x=-8x+25
+8x +8x
_________
10x=25
_ _
10 10
x=2.5
What expression is equivalent to (3x^2-7)
f John consistently makes $1200 deposit into his saving account every year, how many years would it take for John to have his first $1,000,000? (Round your answer up to the nearest whole number.)
Answer:
834 years.
Step-by-step explanation:
Let [tex]y[/tex] equal years.
Construct an equation:
[tex]1200y=1000000[/tex]
Divide both sides of the equation by the coefficient of [tex]y,[/tex] which is [tex]1200[/tex]:
[tex]y=833.3333...\\[/tex]
Round up to the nearest whole number:
[tex]y=834[/tex]
Dan has 18 chocolates. Lee has 14 chocolates. How many fewer
chocolates does Lee have?
Answer:
4 Fewer Chocolates
Step-by-step explanation:
18-14=4
Answer:
4
Step-by-step explanation:
Dan's Chocolates = x
Lee's Chocolates = y
x - y = ?
18 - 14 = 4
Lee has 4 few chocolates than Dan.
GIVING OUT BRAINLIEST
84= -3(3n-5)-3
If $5,860 was raised, which statements are true? Check all that apply.
Answer:
i dont undserstand this
Step-by-step explanation:
Perform the stated transformation on the parent function f(x) = x2
Translate 9 units left and reflect in the x-axis
Answer:
f(x) = -1 (x-9)^2
Step-by-step explanation:
To translate left or right, you must modify the x directly. As in (x-9). If you wanted to move it up or down you would do X^2 ± n, not directly modifying the x.
as well as, you are essentially making a new "zero" through this translation to (-9,0). i'm not sure if you're at that yet though.
as for the translation over the x axis.
when y is negative(or opposite), you have translated over the x-axis.
when x is negative(or opposite), you have translated over the y-axis.
Since you are doing the exponents, then the parenthesis, and then multiplying -1 last (by pemdas) you are ensuring that f(x), the output, or y, is always opposite or negative.
Please help me solve this
Answer:
Value Grocery Mart has the better deal
Step-by-step explanation:
If Market City is selling their crackers for $1.75 a box, we could either multiply that by 3 since we know what 3 boxes of crackers cost for VGM or divide their 3 for 5 by 3 to see how much 1 box is, which is $1.67
Which of the following were grown as surplus crops and used for trade in the southern colonies? Choose all that apply. tobacco wheat rice indigo
Answer:
I think it is Tobacco, rice and Indigo
Step-by-step explanation:
All of the Southern colony's like Virginia, Georgia, North and South Carolina and Maryland all had the cash crops of tobacco, rice and indigo.
Maryland's cash crops- Tobacco
Virginia's cash crops-Tobacco, Rice and Indigo
North Carolina- Tobacco
South Carolina- Rice
Georgia- Tobacco, Rice and Indigo
Hope this helped!!! :)
Which expression is equal to “7 times the sum of a number and 4"?
Answer: 7 (x+4)
Step-by-step explanation: Since the expression asks for 7 times the sum of a number and 4, you would put x + 4 in parentheses since multiplying 7 comes afterwards.
How do you do this question with calculations please?
Step-by-step explanation:
P(win) = p = 0.52
P(lose) = 1 − p = 0.48
1. P(4 wins) = (0.52)⁴ = 0.073
2. P(1 loss) = 0.48
3. P(2 loss) = (0.48)² = 0.23
P(1 win, 3 loss) = ₄C₁ (0.52)¹ (0.48)³ = 0.23
Is this relation a function? Justify your answer. URGENT PLEASE HELP BRAINLIEST!!!!!!!!
Answer:
A. No, because two points with the same x-value have different y-values.
Step-by-step explanation:
No, because it doesn't pass the Vertical Line Test:
A. No, because two points with the same x-value have different y-values.
No, The relation is not a function A. Because two points with the same x value have different y values.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
We know a relation is a function if it is one-to-one or many-to-one.
But a relation one to many implies one input corresponds to two different outputs is not a function.
From the graph the function two different outputs 4 and 6 correspond to the same input 7.
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Solve for x:
x + 10 = 15
Answer:
x = 5
Step-by-step explanation:
Answer:
x=5
Step-by-step explanation:
x+10=15
x=15-10
x=5
Wet N' Dry camp provides water-based activities and ground sports activities for a
maximum of 80 campers. There should be a minimum of eight campers doing water-based activities and a minimum of five campers doing ground sports activities.
Part 1) Write a system of three inequalities hat describes this situation. Define your variables.
Part 2) Graph the system to show all possible out comes.
Part 3) Write one possible solution to the problem in sentence form.
Answer:
x+y≤80; x≥8; y≥5see attached for a graphTwenty campers are doing water-based activities and 40 campers are doing ground-based activities.Step-by-step explanation:
1. Let x and y represent the numbers of campers doing water- and ground-based activities, respectively.
x + y ≤ 80 . . . . . . a maximum of 80 campers can be accommodated
x ≥ 8 . . . . . . . . . . a minimum of 8 campers should be water-based
y ≥ 5 . . . . . . . . . . a minimum of 5 campers should be ground-based
__
2. See the attachment for a graph. Possible outcomes are shaded red. The boundary lines of the shaded area are included in the possible outcomes.
__
3. Twenty campers are doing water-based activities and 40 campers are doing ground-based activities.
Choose all angles that are congruent to ∠ 1 in the below figure.
Answer:
1,7,2, and 5
Step-by-step explanation:
They follow the same angle.
Given f(x)=2x + 5 and g(x)=x^2 - 3
f(3)=
g(2)=
g(f(-1))=
f(g(-1))=
g(f(x))=
Answer:
See below
Step-by-step explanation:
Given
f(x)=2x + 5 and g(x)=x^2 - 3=================
f(3)
f(3)= 2*3 + 5 = 11g(2)
g(2)= 2^2 - 3 = 1g(f(-1))= 6
f(-1) = -2 + 5 = 3g(3) = 3^2 - 3 = 6f(g(-1))= 1
g(-1) = (-1)^2 - 3 = -2f(-2) = -2*2 + 5 = 1g(f(x))
g(f(x))= (2x +5)^2 - 3 = 4x^2 + 20x + 25 - 3 = 4x^2 + 20x + 225.
An equation in one variable is shown below.
6 + 0.50x = 26
Which problem situation could represent the equation?
A. A carnival charges $6 to park, plus $0.50 per ride ticket. How many carnival
rides can a person ride at the carnival if they spent a total of $26 at the carnival?
B.
A person downloaded an app for their phone that cost $6, plus some songs
that cost $0.50 each. How much did the person pay for the app and songs if
they download 26 songs?
C.
A dog-walking service charges $6 for each hour walking, plus $0.50 for each
dog. How many hours could a dog be walked for $26?
D.
Sara earns $6.50 an hour babysitting. How long will Sara need to babysit in
order to earn $262
Answer:
c.
Step-by-step explanation:
Move the constant to the right side and the sign
0.5x=26-6
Calculate
0.5x=26-6=20 >>> 0.5x=20
divide both sides of by the equation 0.5
0.5x=20 >>> x=40
Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -3x+3=4-4x?
Answer: x= 1
Step-by-step explanation: solve for x by simplifying both sides of the equation, then isolating the variable.
True or false: f(x) is a function. 0 3 4 2 8 12 0 f(x) A. True B. False
Answer: true
Step-by-step explanation: f(x) is a function because each x value (left oval) has one y value (right oval)!
the endpoints of cd are c(5,3) and d(-3,-6) find the coordinates of the midpoint M
Answer:
Step-by-step explanation:
Midpoints of two coordinates is expressed using the formula;
M(X, Y) = (x2+x1/2, y2+y1/2)
Given the coordinates c(5,3) and d(-3,-6)
x1 = 5, y1 = 3, x2 = -3 and y2 = -6
X = x1+x2/2
X = 5+(-3)/3
X = 5-3/2
X = 2/2
X = 1
Also;
Y = y1+y2/2
Y = 3+(-6)/2
Y = 3-6/2
Y = -3/2
Y = -1.5
Hence the coordinates of the midpoint M is (1, -1.5)
Answer:
Step-by-step explanation:
Hence the coordinates of the midpoint M is (1, -1.5)
