Answer:
Lily has 15 stamps
Step-by-step explanation:
You would divide 19.8 by 1.32 to get 15.
*Please give Brainliest to the person on top. They said the answer first. :)
Which inequality is true?
Answer:
a
Step-by-step explanation:
Answer:
The inequality -2 [tex]\frac{3}{4}[/tex] < -1 [tex]\frac{2}{4}[/tex] is correct.
Step-by-step explanation:
-2 [tex]\frac{3}{4}[/tex] is greater than -1 [tex]\frac{2}{4}[/tex] because the more left the number is on the number line, the smaller.
Therefore the inequality -2 [tex]\frac{3}{4}[/tex] < -1 [tex]\frac{2}{4}[/tex] is correct.
Pls help I’m bad at math no matter how much I try
Answer:
9/1 = 0.9
2 = 2.0
3 1/10 = 3.1
10 = 100
Step-by-step explanation:
In a recent survey, 55% of cellphone owners said they text message, what fraction of cellphone owners is this?
Answer:
11/20
Step-by-step explanation:
[tex]55\% = \frac{55}{100} = \frac{11}{20} [/tex]
What’s the constant of proportionality
(COP= constant of proportionality) help plz
PLEASE HELP THIS IS DUR SOON
Answer:
1 3/4
Step-by-step explanation:
We can set the length of the rectangle to l. We can make an equation with the area because we know length*width = area.
l*(4/5) = 7/5
4l = 7
l = 7/4 = 1 3/4
Find the average rate of change of the tree over time. In 1965 the tree has a diameter of 135 in. And in 2005 it has a diameter of 139 in. B)Predict the diameter in 2035.
Answer:
0.1 in per year ; 142 in
Step-by-step explanation:
Giveb that :
Diameter of tree in 1965 = 135 inches
Diameter of tree in 2005 = 139 inches
Average rate of change:
Change in diameter / change in time
(139 - 135) / (2005 - 1965)
4 / 40
= 0.1 in per year
Predict diameter in 2035;
Initial diameter + (average rate of change * (Number of years from initial)).
135 in + (0. 1 * (2035 - 1965))
135 in + (0.1 * 70)
135 in + 7 in
= 142 in
I need this by tomorrow! please help me, I'm desperate. I dont understand it well.
Are the ratios 13:9 and 6:3 equivalent?
Dwight is selling flowers and candles for a school fundraiser. Flowers, x, sell for $7 for a bouquet, and candles, y, sell for $5. each. If he wants to sell at least $200 worth of flowers and candles, which inequality represents the situation where he sells x flowers and y candles?
A: 7x + 5y 200
C: 7x + 5y ≤ 200
D: 7x + 5y ≥ 200
Please explain why the right answer choice is correct. Thanks.
Answer:
D: 7x + 5y ≥ 200
Step-by-step explanation:
If flowers sell for $7 and candles sell for $5, we can write those as 7x and 5y. Now, our inequality is 7x + 5y __. The words "at least" can translate to greater than or equal to. The symbol for that is ≥. Now, he wants to sell at least $200 worth of goods. That means we can write our inequality as 7x + 5y ≥ 200.
Original price is $300; Discount is 25%
Answer:
$225
Step-by-step explanation:
25% of 300 is also 1/4 of 300 which is 75
you take the discounted price away from the original price
300-75=225
10 yd
5 yd
What’s the surface area of the cylinder
Answer:
471.24 yd²
Step-by-step explanation:
The formula for the surface area of the cylinder
= 2πr(r + h)
Height = 10 yd
Radius = 5 yd
Surface area =
2 × π × 5(5 + 10)
= 471.24 yd²
The surface area of the cylinder = 471.24 yd²
uhm second time? i dont know this question. what is
-1 + -1 = ?
pls help me
Answer:
- into + equals to -
so -1+ -1= -1 -1
Answer is -2
Step-by-step explanation:
Question
Under ideal conditions, the population of a certain species doubles every nine years. If the population starts
with 100 individuals, which of the following expressions would give the population of the species t years after
the start, assuming that the population is living under ideal conditions?
Answer: 100 x 2^ t/9
Step-by-step explanation:
The initial population of 100 that doubles in 9 years, gives the
expression for population as; [tex]\underline{ P = 100 \cdot e^{0.077 \cdot t}}[/tex].
How can the expression for the population be found?Given parameters are;
The time it takes the population to double = 9 years
The initial population count = 100
Required:
The expression that gives the population after t years.
Solution:
The population as a function of time can be expressed as an
exponential function as follows;
[tex]P = \mathbf{P_0 \cdot e^{c \cdot t}}[/tex]
At the start, t = 0, P = 100, we have;
[tex]100 = \mathbf{ P_0 \times e^{c \times 0} }= P_0[/tex]
Therefore;
P₀ = 100
After 9 years, we have;
P = 2·P₀
Therefore;
[tex]2 = \mathbf{ e^{c \times 9}}[/tex]
ln(2) = 9·c
[tex]c = \dfrac{ln(2)}{9} \approx 0.077[/tex]
The function that gives the population is therefore;
[tex]\underline{ P = 100 \cdot e^{0.077 \cdot t}}[/tex]Learn more about exponential functions here:
https://brainly.com/question/15602335
Inequalities
3x-(2½-x)>0
3(4-y)>6-y
Please this is my 2 of my 10 assignment,please help me with it i would do the rest my self
Answer:
x=5,y=2
Step-by-step explanation:
THis are the answer's because in the inequalities u solve them and them u get your answer
A train travels at a speed of 35 miles per hour. How far will the train travel in 5 hours?
This is Math
Answer:
175 miles
Step-by-step explanation:
35 times 5 = 175
Louis has $300 to spend on a pair of skis. Sales tax is 8.5%
Part A
Decide if each description of a price and discount, plus sales tax, is an amount Louis could pay with the money he has to spend on skis.
Select Less than or equal to $300 or More than $300 for each description
20% off $339
Less than or equal to $300
More than $300
$15 off $310
Less than or equal to $300
More than $300
25% off $365
Less than or equal to $300
More than $300
$20 off $300
Less than or equal to $300
More than $300
Answer:They are all Less Than
Step-by-step explanation:
If you were going to solve -3(x + 5) = 27, what is the first step that you would do? Why did you start there?
Answer:
Step-by-step explanation:
Multiply -3 for x and for 5
-3x-15=27
When you have this type of equation the first thing you do is take off the parentesis
Then you pass the 15 to the other side and you get -3x= 27 +15 . After that you divide that for -3 and you get the x . In this case x= -14
Sorry if the english is bad, i hope this helps
Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.
Answer:
noice
Step-by-step explanation:
becuase o=boice
Help pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee assstin
90×90×90×90
Answer:
65610000
Step-by-step explanation:
Answer:
65,610,000
Step-by-step explanation:
Need help with this one
Answer:
3/2 and 2/3
Step-by-step explanation:
Scale Factor = Image / object
You can take either of the three sides so as far as it corresponds with the side of the other triangle
Let's take longest sides
= 15/10 = 3/2 That's scale Factor from Triangle PQR to STU
The second question is the reverse of the first one
= 10/15 = 2/3
The same applies to when you use the other sides of the triangles.
M/8-15=-12
What would m equal??
Answer:
24?
Step-by-step explanation:
solve for all solutions: sin5x=-1/2
Answer:
-1/10
Step-by-step explanation:
Let's solve your equation step-by-step.
5x=−1/2
Step 1: Simplify both sides of the equation.
5x= -1/2
Step 2: Divide both sides by 5.
5x/5 = -1/2/5
x=-1/10
Samuel deposits $100 in a high-interest account that has an interest rate of 10% compounded annually. Samuel decides to neither add to nor withdraw money from the account for the next 10 years. How much will be in his account in 3 years? How long will it take to accumulate $61 in interest?
Answer:
In 3 years, the value of Samuel’s account will be approximately $133
It will take about 5 years for Samuel’s account to earn $61 in interest.
Step-by-step explanation:
edmentum
Shasta is going to her best friend's house for dinner. Her mother says she needs to be back in 2 and a half hours. If she leaves at 5:00 pm, what time will she be back?
Answer:
she will be back at 7:30pm
Step-by-step explanation:
From the question we are given
Time that Shasta leaves for her best friend place = 5:00pm
If she is to come back after 2 and a half hour, hence we will have to add 2hr 3ominutes to the time she left to know the time she will be back as shown:
She will be back at 5:00 + 2hr 30min = 7:30pm
Hence she will be back at 7:30pm
URGENT!!! PLEASE HELP (30 points !!!)
Use the line tool to graph the equation on the coordinate plane.
y=-3
The senior classes at High School A and High School B planned separate trips to New York City.
The senior dass at High School A rented and filled 14 vans and 6 buses with 264 students. High
School B rented and filled 7 vans and 5 buses with 178 students. Every van had the same
number of students in it as did the buses. How many students rode in each van?
Answer:
9 kids
Step-by-step explanation:
Please help :( I can't figure out the answer to this
I WILL GIVE YOU BRAINLY PLSS
If you multiply both sides of an inequality by a negative number, when should you
reverse the inequality symbol?
A. sometimes
B. always
C. never
D. depends on if the number is a fraction or not
PLSS SHOW YOUR WORK PLSS
Answer:
b
Step-by-step explanation:
if you say 1<2 and multiply both by negative 3 you will have -3 > -6
Answer:
Step-by-step explanation:
When you multiply both sides by a negative value you make the side that is greater have a "bigger" negative number, which actually means it is now less than the other side! This is why you must flip the sign whenever you multiply by a negative number. You can also consider this with a number line.
I hope this helps!
If you want to show an increase to the original quantity, how could you change the bar diagram?
Answer:
Write a situation in which positive and negative numbers are used to describe values that have opposite meaning. What does 0 represent in this situation you created?
Step-by-step explanation:
Next Question!!? Help please... <3
Answer:
x=4 and y=0
Step-by-step explanation:
Sub x-4 in for y:
2x+4(x-4)=8
2x+4x-16=8
6x=24
x=4
y=x-4
y=4-4
y=0
Y = 4
X = 0
Answer is 8
