Step-by-step explanation:
-7b=21
Divide both sides by - 7
B= -3
find the area if length is 4x, width is 9 and x is 1/3
Answer:
12
Step-by-step explanation:
4 • 1/3 = 4/3
9 • 4/3 = 36/3
36/3 simplified is 12
You work at a fruit stand that sells apples for $2 per pound, oranges for $5 per pound, and bananas for $3
per pound. Yesterday you sold 60 pounds of fruit and made $180. You sold 10 more pounds of apples than
bananas. How many pounds of each kind of fruit did you sell yesterday?
Missing only a few days of school will not impact your grades.
Please select the best answer from the choices provided
T
O
T7
Answer:
the answer is false
Step-by-step explanation:
(1/4)^-2 - (5^0) • 1^-1 =
Answer:
15
Step-by-step explanation:
Plz answer with details
Answer:
[tex]\boxed{x^9}[/tex]
Step-by-step explanation:
[tex]x^6 \times x^3[/tex]
[tex]= ( x \times x \times x \times x \times x) \times ( x \times x \times x)[/tex]
[tex]= x \times x \times x \times x \times x \times x \times x \times x[/tex]
[tex]= x^9[/tex]
Hope this helped you!
im giving brainliest to the best answer pls help
Answer:
$4
Step-by-step explanation:
Calculate the distance travelled by a bus in 2 hours which moves with the velocity of 22 meter per second
Answer:
158,400 m. or 158.4 km.Step-by-step explanation:
distance = velocity x time
where: time = 2 hrs. x 3600 sec / 1 hr
= 7200 secs
velocity = 22 m/s
plugin values into the formula:
distance = 22 m/s x 7200 sec.
= 158,400 m. or 158.4 km
5. Rhonda make jewelry at home and she sells her products on eBay. Last month, she made 130 bracelets? Since then, she has sold 91 bracelets. What percent of the bracelets have been sold so far? THE ANSWER IS 70% BUT I DONT GET HOW TO GET THE ANSWER IF THAT MAKES SENSE
Answer:
70%
Step-by-step explanation:
this question is basically asking, x(91) is what percent of y(130)?
to get the answer we use the formula p=x*100 divided by y
91*100=9100
9100/130=70
Figure this out for 15 points
Step-by-step explanation:
Joe's climbing rate is not constant
3 × 2 = 6
8 × 1.5 = 12
12 × 1.1666666667 = 14
Time when climber reaches 30ft is unknown because climbing rate is not constant
Zas's climbing rate is 2.5
2 × 2.5 = 5
4 × 2.5 = 10
12 × 2.5 = 30
At 12 seconds, Zas reaches 30 feet.
Stephen's climbing rate is 4
2 × 4 = 8
4 × 4 = 16
6 × 4 = 24
30 ÷ 4 = 7.5
7.5 × 4 = 30
At 7.5 seconds, Stephen reaches 30 feet.
What two fractions are equal to 2
Answer:
Step-by-step explanation:
8/4 and 6/3
Charlie runs a book rental business. He currently charges $3 per book and rents out an average of 38 books a day.
According to a study, for every 50C increase in rental price, the average business can expect to lose 4 rentals a day.
Complete the equation that models this scenario, where b(x) is the revenue generated and x is the number of 50 price increases.
b(x)= x + x+ [
Answer:
b(x) = (3+0.5x) (38-4x)
Step-by-step explanation:
Let the generated revenue per day be b(x)
Let x be the number for every 50cents($0.5) price increase
Formula to be used to generate the revenue generated is expressed using the formula:
b(x) = Price × Quantity
Next is to derive the price and quantity function in terms of x.
For the price:
If he currently charges $3 per book
Let derive the price function for the model and x number of price increase for every 50 cents, then
Price = ($0.5 of x)+$3
Price = $3+$0.5x
Price = $(3+0.5x)
For the quantity:
Number of books rent out per day = 38
If for every 50cents increase in rental price x, the average business can expect to lose 4 rentals a day, then the total lost per quantity = 4x
Quantity per time = Number of books rent out daily - loss on each book
Quantity = $(38-4x)
Next is to substitute the price and quantity function into the revenue formula above:
Revenue = Price × Quantity
Revenue = (3+0.5x)(38-4x)
Hence the equation that models this scenario, where b(x) is the revenue generated and x is the number of 50 price increases is b(x) = (3+0.5x)(38-4x)
SOMEONE HELP ME PLEASE
Answer:
m=-2/3
Step-by-step explanation:
two points from graph:(-1,1) and (-4,3)
m=y2-y1/x2-x1
m=3-1/-4-(-1)
m=2/-3
m=-2/3
Which difference is about 10? O A. 55.7 – 55.6 O B. 43.2 - 38.4 O C. 60.9 - 48.7 0 D. 52.5 - 26.8
Brian is solving an equation where both sides are quadratic expressions. He sets the expressions equal to y. Then he graphs the system finding that the two graphs share a common vertex, but one graph opens upward and the other opens downward. How should Brian interpret this outcome?Then he graphs the system finding that the two graphs share a common vertex, but one graph opens upward and the other opens downward. How should Brian interpret this outcome?
Brian interprets this outcome because There is exactly one intersection point.
What is a Quadratic equation?ax2+bx+c=0, with a not equal to 0 is a quadratic equation, which is a second-order polynomial equation in a single variable. It has at least one solution because it is a second-order polynomial equation, which is guaranteed by the algebraic fundamental theorem. The answer could be simple or complicated.
Given, Both sides of the problem Brian is solving have quadratic expressions. He sets y as the value for the expressions. The system is then graphed, and he discovers that the two graphs have a similar vertex but that they have opposite opening directions.
The parabola expands upward if the leading coefficient is larger than zero and downward if the leading coefficient is less than zero.
A route that starts and finishes at the same vertex is called a circuit. A cycle is a circuit that doesn't repeat its vertices. If a path connects any two of a graph's vertices, the graph is said to be linked.
Therefore, Brian interprets this outcome because There is exactly one intersection point.
Learn more about Quadratic equations here:
https://brainly.com/question/22364785
#SPJ1
what’s number 57 and 58?
Answer:
57. -2 yd
58. -$10
simple subtraction
C={0,1,3,5,7},D={1,2,4,6,7}} intersection in them??
Answer:
the answer isC n D= {1,7}
Answer:
The intersection in them is {1, 7}
Step-by-step explanation:
Let us revise some definition in the operation of sets of numbers
The intersection of two sets of numbers is the set of all elements belong to both setsThe union of two sets of numbers is the set of all elements belong to one of the two sets (without repetition)→ Ex: set A = {1, 2, 3, 5, 6} and set B = {4, 5}, then
A ∩ B = {5} ⇒ ∩ is the symbole of intersection A ∪ B = {1, 2, 3, 4, 5, 6} ⇒ ∪ is the symbole of unionLet us solve the problem
∵ C = {0, 1, 3, 5, 7} , D = {1, 2, 4, 6, 7}
→ The common elements in the two sets are 1 and 7
∴ C ∩ D = {1, 7}
∴ The intersection in them is {1, 7}
36= -3d + 9
What is d
D=
Answer:
D = -9
Step-by-step explanation:
How many real roots are there for the equation, x^2+4x-1=0 I think the answer is two real roots
Answer:
2 real roots
Step-by-step explanation:
Given a quadratic equation in standard form
ax² + bx + c = 0 ( a ≠ 0 )
Then the nature of the roots are found using the discriminant
Δ = b² - 4ac
• If b² - 4ac > 0 then 2 real and distinct roots
• If b² - 4ac = 0 then 2 real and equal roots
• If b² - 4ac < 0 then 2 complex roots
x² + 4x - 1 = 0 ← is in standard form
with a = 1, b = 4, c = - 1, then
b² - 4ac = 4² - (4 × 1 × - 1 ) = 16 + 4 = 20
Since b² - 4ac > 0 then the equation has 2 real and distinct roots
Solve for x:
-2x – 9= X – 21
Answer:
x = 10
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
add 2x to both sides
-9=3x-21
add 21 both sides
12=3x
divide each side by 3
4=x
82b-9b+7=73b+19 what is b
Which rational number is the greatest: (-4 6/10) or (4.65)
Thank you
Which of the following three sets of lengths could be used to form a right triangle? a 39 15 36 b 12 8 4 c 13 17 9 d none of the above
Answer: a
Step-by-step explanation:
15^2 + 36^2 = 39^2
Answer: the answer would be 39, 15 and 36
Step-by-step explanation:
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. Write the expression in simplest form. 11 I + 3
Answer:
the correct answer is 8
Answer:
The answer is 8 if you do it correctly
Step-by-step explanation:
What is an equation of a line that passes through the points (3, -5) and (-6,-8)?
Answer:
y=1/3 x -6, y equals one third x minus 6
Step-by-step explanation:
The equation will look like -5/3 - -8/-6 since we're finding the slope. That equals 3/9 or 1/3, the slope is 1/3. But since we also need to find the y-intercept, we need to solve another equation, y-y1=m(x-x1). Now we just need to put in the values. y-(-5)=1/3(x-3) this becomes y+5=1/3 x - 1, subtract 5 to isolate y, y=1/3 x -6.
A bin contains 26 markers. Four students each choose the same number of markers. If they choose as many markers as possible, how many markers are left in the bin?
Your're Answer:
there would be 13 markers for each student and 26 divided by 13 would be 2 so there is two markers left in the bin.
During November, sales are
at their peak. The store
manager must work 40
hours that week. How much
will the manager earn?
Answer:
$540
Step-by-step explanation:
$27 x 20
A yard is approximately 5.68 x 10-4 miles. How is this number expressed in standard decimal notation?
A. 0.568
B. 0.0568
C. 0.000568
D. 56,000
Answer:
C: 0.000568 miles
Step-by-step explanation:
Essentially, the exponent on the 10 is how many places to move the decimal point, and negative versus positive dictates whether to move it right or left respectively.
Answer:
Step-by-step explanation:
The answer is A. 0.568
Science is Hayley's favorite class! She especially loves doing experiments. Today, she began an experiment with 260 grams of an unknown solid. During the experiment, the change in the mass of the solid was
–
84 grams.
What is the final mass of the solid?
Answer:
I got u the correct answer is (176)
Step-by-step explanation:
I love math so i am correct.
Kim bought 12 boxes of drinks
He paid $15 for each box.
There were 12 drinks in each box.
Kim sold 3/4 of the drinks for $1.50 each.
He sold all of the other drinks at a reduced price.
He made an overall profit of 15%.
Work out how much Kim sold each reduced price drink for.
Answer:
The amount Kim sold each reduced price drink is $1.25 each
Step-by-step explanation:
The number of boxes of drinks Kim bought = 12 boxes
The amount Kim paid for each box = $15
The number of drinks in each box = 12 drinks
The amount Kim sild 3/4 of the drinks = $1.50 each
The amount Kim sold the remaining drinks = At a reduced rate
The amount of profit Kim made = 15%
Therefore, we have;
The total amount Kim bought the whole drinks = 12 × $15 = $180
The total number of drinks = 12 × 12 = 144 drinks
3/4 of the drinks = 3/4×144 = 108 drinks
The amount Kim sold the 108 drinks = 108 × $1.5 = $162
The amount of profit Kim made = 15%
Therefore;
(((The total amount Kim sold the whole drinks) - (The total amount Kim bought the whole drinks))/(The total amount Kim bought the whole drinks)) × 100 = Percentage profit
(((The total amount Kim sold the whole drinks) - ($180))/($180)) × 100 = 15%
The total amount Kim sold the whole drinks = 0.15×$180 + $180 = $207
The total number of the remainder of the drinks = 144 - 108 = 36 drinks
The amount Kim sold the remainder of the drinks = $207 - $162 = $45
The amount Kim sold each of the remainder of the drinks at reduced price = $45/36 = $1.25
Therefore, the amount Kim sold each reduced price drink = $1.25 each.
What is the y-intercept of the line?
1. 0
2. 1
3. -2
4. 1/2
Answer:
2. 1
Step-by-step explanation:
the point at which the y axis is passed through is (0,1)
