Step-by-step explanation:
let worth be y and age be x
y = k/x, where k is a constant, k ≠ 0
7000 = k/3
21000 = k
y = 21000/7
y = 3000
$3000
Topic: Direct and inverse proportions
If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!
which phrase represents 3y +9
What are the x-intercept and the y-intercept of the graph of 9x − 7y = −63?
Answer:
x-intercept: 7; y-intercept: −9.
Step-by-step explanation:
Answer:
x=-7
y=-9
Hope I helped you
Christian walked directly south for 3.5
miles then walked 4.5 miles directly
east. How far is he from where he started
What is a scale factor?
The ratio of weight of similar 2-D figures
The ratio of corresponding angles of similar figures
The ratio of corresponding sides of similar figures
The ratio of volume of similar 2-D figures
Answer:
Here is some helpful information from my mini lessons.
Step-by-step explanation:
If two objects have the same shape, they are called "similar." When two figures are similar, the ratios of the lengths of their corresponding sides are equal. To determine if the triangles shown are similar, compare their corresponding sides. Here you'll learn that the ratio of the perimeters of similar figures is equal to their scale factor and that the ratio of their areas is equal to the square of their scale factor. If two polygons are similar, then the ratio of the lengths of any two corresponding sides is called the scale factor. This means that the ratio of all parts of a polygon is the same as the ratio of the sides.
what is the second equation for this??
Step-by-step explanation:
She spent nine dollars in the second equation, so it would be one adult ticket and two children's tickets, or 1x + 2y= 38
wyatt opend a savings account 4 years ago. the account earns 4%interest compounded quarterly if the current balance is $1,000.00 how much did he deposit initially round your answer to the nearest cent
Answer:
He deposited initially $852.82
Step-by-step explanation:
The rule of the compound interest is [tex]A=P(1+\frac{r}{n})^{nt}[/tex], where
A is the new amountP is the initial amountr is the rate in decimaln is the period of the timet is the time∵ Wyatt opened a savings account 4 years ago
∴ t = 4
∵ The account earns 4% interest compounded quarterly
∴ r = 4% = 4 ÷ 100 = 0.04
∴ n = 4 ⇒ compounded quarterly
∵ The current balance is $1,000.00
∴ A = 1,000
→ Substitute these values in the rule above to find P
∵ 1,000 = [tex]P(1+\frac{0.04}{4})^{4(4)}[/tex]
∴ 1,000 = [tex]P(1+0.01)^{16}[/tex]
∴ 1,000 = [tex]P(1.01)^{16}[/tex]
→ Divide both sides by [tex](1.01)^{16}[/tex]
∴ 852.8212622 = P
→ Round it to the nearest cent (2d.p)
∴ P = 852.82
∴ He deposited initially $852.82
Pls help with the question in the picture
Answer:
Step-by-step explanation:
m∠ABC = [tex]\frac{1}{2}[/tex] m∠AOC = 54°
Answer: 54°
because ∠ADC is the angle at the center of the arc AC and ∠ABC is the inscribed angle of the arc AC
=> m∠ABC = 1/2. m∠ADC = 108/2 = 54°
Step-by-step explanation:
please help me! I am struggling lol
Vijay’s wages were increased from £115 per week to £130 per week.
What was the percentage increase to one decimal place?
Answer:
13%
Step-by-step explanation:
Increase = (New Number - Old Number) / Old Number
(130 - 115) / 115
15/115 = 0.130434783.
0.130434783 * 100 (to get the percentage) = 13.0%
What is x=7 in slope intercept form
Please help
Answer: x=7 or undefined
Step-by-step explanation:
We can't write x=7 in slope intercept form, since it doesn't have an actual slope or y-intercept. You could put undefined, since the slope is undefined.
Of the 520 students participating in a chess tournament, 35% were male. How many females were in the tournament?
Answer:
182
Step-by-step explanation:
take 520 and multiply by 0.35
The number of female students participated in a chess tournament is 338.
What is percentage?Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Given that, 520 students participating in a chess tournament, 35% were male.
Number of male students = 35% of 520
35/100 ×520
= 0.35×520
= 182
So, the number of female students
= 520-182
= 338
Therefore, the number of female students participated in a chess tournament is 338.
To learn more about the percentage visit:
brainly.com/question/24159063.
#SPJ2
John paints 2 portraits in 8 hours, 3 portraits in 12 hours, and 5 portraits in 20 hours. Which statement correctly describes this situation?
Answer:
1 portrait is painted every 4 hours
Step-by-step explanation:
Okay so there aren't any statements but I realized that he paints 1 portrait every 4 hours
If this isn't an option comment them and I will try to see if any match up correctly.
The expression (-4)-1)(3)(-2) is equal to
Mariza é costureira e, para determinar o comprimento de elástico, em cm, que utiliza na confecção de determinado modelo de calça, ela recorre à expressão x2+2y . Nessa expressão, x e y são medidas que variam de acordo com o tamanho da calça a ser produzida. Para o tamanho P dessa calça, ela utiliza x=40 cm e y=15 cm
15) A car salesman earns $700 per week plus 2.5% commission on his sales. If he
sold two cars for a total of $75,000 last week, how much did he make?
Please help!
Answer:
$2575
Step-by-step explanation:
For this problem, we need to form an equation that represents the car salesman's weekly income. We are given that he makes at least $700 per week and that he makes 2.5% commission for his sales. Let n represent the total amount of sales the car salesman made. So we can build the equation as follows:
f(n) = 0.025n + 700
Note that if we let n = 0 (He made no sales) then he will make his minimum weekly income of $700.
So let's use our formula to calculate how much he made for the week given he made $75000 in sales.
f(75000) = 0.025(75000) + 700
f(75000) = 1875 + 700
f(75000) = 2575
Hence, the car salesman made $2575 for the week.
Cheers.
Find the measure of
Answer:
180-43=137....................
What is the solution to this system of equations?
5x + 2y = 29
x + 4y = 13
50 percent is c.x=5,y=2.
Answer:
X= 5, y= 2
Step-by-step explanation:
Can someone tell me the answer and explanation plz I’ll give brainlist and points
Answer:
b
Step-by-step explanation:
I double checked, its b
Which property is illustrated by the equation 3 (m n) = (3 m) n?
A. associative property
B. commutative property
C. distributive property
D. identity property
Answer:
its A <33
Step-by-step explanation:
Your keys drop from the top of the tower and fall straight to the ground. You want to know how far from the base of the tower the keys landed. Draw a right triangle that will help you solve the problem. Label each triangle with the information you know
Answer:
46.35m
Step-by-step explanation:
150sin(72)=46.35
Write the equation based on the graph
Answer:
3x+3
Step-by-step explanation:
rise over run and y-intercept
The president wife is leading a humanitarian mission.
A. presidents
B. president's
C. presidents'
D. presidentes'
Answer:
B
Step-by-step explanation:
Technically it's describing something that belongs to the president.
Answer:
A
Step-by-step explanation:
I chosen A because it is the right answer
Sam has $40. He buys a book for $12.99 and a puzzle for $15.49.
Which equations can be used to find how much money Sam has left? And don’t understand.
Answer:
First Answer Yay
Plz somebody help me ?
Answer:
x = 10
Step-by-step explanation:
these are corresponding angles
4x = 3x + 10
x = 10
PLSSSSSS HELP ME I WILL GIVE BRAINLY
Answer: (2,2)
Step-by-step explanation:
The solution of the system of equations is the intersection point, or the point where both lines meet. Looking at the graph, we see that the blue and red line meet at (2,2). That means the solution is (2,2).
We can also solve this algebraically. Since we are given that y=x, we can plug that into the equation and solve.
y+2y=6 [combine like terms]
3y=6 [divide both sides by 3]
y=2
Since we are told that y=x, we know that x is also 2. This tells us that the solution is also (2,2).
what’s the slope of (5,9) and (3,2)
Answer:
m=7/2
Step-by-step explanation:
A bag of marbles can be shared equally among 3, 4, 5, 8 or 10 people with none left over. What is the smallest number of marbles that could be in the bag?
Please help this is due at 11:59
Answer:
120
Step-by-step explanation:
the lcm of those numbers is 120 I believe.
I dont need the work just the answer pls :)
Answer:
[tex]\sqrt{29}[/tex]
3) WeSell4Less car dealership has 175 cars in their sales lot. On average they sell 20% of their cars in a month. In the next month how many cars would should they sell? please help me solve this
Answer:
They should sell 35 cars next month.
Step-by-step explanation:
From the information given, you know that the dealership sells 20% of their cars in a month and you should calculate 20% of the amount of cars they have in their sales lot to know the amount of cars that they should sell next month:
175*20%=35
According to this, the answer is that they should sell 35 cars next month.
What is the solution for -3x ≥ 36? x ≤ -12 x ≥ -12 x ≤ -108 x ≥ -108
Answer:
its a
Step-by-step explanation:
Answer
im postive its A:)
Step-by-step explanation: