Answer:
There are 8 erasers in the box
Step-by-step explanation:
given that the Ratio of pencils to erasers is 3:2
No matter how many pencils and erasers are there the ratio will simplify to the given ratio.
Let x be the number of erasers when there are 12 pencils
The ratio of 12 pencils to x erasers will be same 3:2
Putting it mathematically
[tex]\frac{pencils}{erasers} = \frac{pencils}{erasers}\\\frac{12}{x} = \frac{3}{2}\\12 * 2 = 3x\\3x = 24\\\frac{3x}{3} = \frac{24}{3}\\x = 8[/tex]
Hence,
There are 8 erasers in the box
Mark drew a line to fit the data in a scatter plot as shown What is the equation of the line that Mark drew?
Answer:
Step-by-step explanation:y=1/4 X +6
Answer:
y= 1/4x+ 6
Step-by-step explanation:
Because the line intersects the y-axis at 6, we know the y-intercept, b, is 6.
By counting, we can see the line rises 1 unit for every 4 units it runs to the right. So, the slope, m, of the line is 1/4.
Substitute m and b into the slope-intercept equation, y = mx + b. The equation of the line is y = 1/4 x + 6.
owen has a collection of nickels and quarters worth $8.10. If the nickels were quarters and the quarters were nickels, the value would be $17.70. Find the number of each coin.
joe deposits $1500 in an account that pays 3% annual interest compounded conitiniously how much will joe have in his account after 5 years
Answer:A = 1500e^(0.03 * 5) = 1500e^(0.15)
use definition of logarithm
0.15 = ln(A / 1500)
0.15 = ln(A) - ln(1500)
ln(A) = 0.15 + ln(1500) = 0.15 + 7.313220387 = 7.463220387
Step-by-step explanation:
The amount of money Joe would have in his account after 5 years is $1742.75.
Given the following data:
Principal, P = $1500Interest rate, R = 3%Time, T = 5 yearsTo determine the amount of money Joe would have in his account after 5 years.
Mathematically, an interest that is compounded continuously given by the formula:
[tex]A = Pe^{rt}[/tex]
Where:
A is the future valueP is the principal.r is the interest rate.t is the time in years.Substituting the given parameters into the formula, we have;
[tex]A = 1500 \times e^{0.03 \times 5}\\\\A = 8000 \times e^{0.15}\\\\A = 1500 \times 1.1618[/tex]
A = $1742.75
Read more on compound interest here: https://brainly.com/question/16992474
find the range f(n)=-4n-5 if the domain is -7
Answer:
23
Step-by-step explanation:
y=f(n)=( -4× -7)-5
f(n)=28-5 =23
“A Wok in the Park” charges a $100 set-up fee plus $12.50 per person. “Chop Chop Catering” charges $15 dollars per person.
Write a equation in the form y=mx+b for both companies
Answer:
y = $100 + $1.50x
y = $15x
Step-by-step explanation:
Given that :
A Wok in the Park charges :
Setup fee =$100 ; per person = $12.50
Chop Chop Catering charges :
$15 per person
Writing equation for the amount charged by the 2 services in the form :
y = mx + c ;
A Wok in the Park ;
Setup fee =$100 = c = intercept ; per person = $12.50 = slope = m
y = $100 + $1.50x
Where x = number of persons. ; y = amount charged
Chop Chop Catering charges :
$15 per person
y = 0 + $15x
y = $15x
x = number of persons. ; y = amount charged ; intercept (c) = $0
What fraction is equivalent to 1/6
A. 3/8
B. 2/8
C. 3/24
D. 4/24
Answer:
C
Step-by-step explanation:
Because 24 divided by 3 = 8 and 3/8 has a denominator of 8 and you divide it by 3
could i have branliest and a heart please
Have a good day :)
A washer and dryer cost $906 combined. The washer cost $56 more then the dryer. What is the cost of the dryer ?
Answer:
It cost $397
Step-by-step explanation:
Because 906 divided by 2 equals 453 minus 56 equals 397
HELP ME PLEASE!!!!!! I need to finish this soon, in order to pass this semester! I’ll give brainiest (I’m not sure how to spell it)
An artist uses 18 colors on an art palette to paint a picture. This is 72% of all the colors on the palette. How many colors are on the artist’s palette?
Answer:
He actually has 25 paints.
Step-by-step explanation:
This is because you take 18x100(100 is the total % under 72 because 72 is out of 100) that equals 1800. then, you take 1800 and divide it by 72. That is because 72 is the actual number that we already have. You would get 25 after dividing. hope this helps:)
Answer:
25
Step-by-step explanation:
Think the number is x
So
According to the question
The equation is
x×72%=18
x×72/100=18
x×18/25=18
x=18×25/18
x=25
So
There are 25 colours on the artist's palette
help please giving brailiest
Answer:
1/4
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
16+8=24
Someone help me with this question as soon as possible
Answer: A. 4 mph
Step-by-step explanation:
4 x 10 = 40
Answer:
A. is correct
B. is correct
D. is correct
all others are wrong
need help I forgot how to do this
Answer:
A.
Step-by-step explanation:
you have to find the discriminant
b²-4ac for each equation
if discriminant < 0 no real solutions because will be negative under the squareroot whhan you try to find the roots
if discriminant = 0 there is only one solution
if discriminant > 0 two real solutions
for your given problems
A. discriminant =(-2)²-4*2*15 will be negative
What is the product of 2x + 3 and 4x ^2- 5x + 6?
Answer:
8x^3 +2x^2-3x+18
Step-by-step explanation:
please help lol easy math
Answer:
a
Step-by-step explanation:
Answer:
Its B and E
Step-by-step explanation: Common sense
FREE 9 = Tucson
...
..
Answer:
Tuscon. btw DIE MAX!
Step-by-step explanation:
Answer:yo the rule is
R% x P x T
which in this question is:
r%= 9%
p= 630
t=8
so
630 x 8 x 9% = 453.6
that's the final answer and in order to make sure make
630+453.6=1083.6
Step-by-step explanation:
You live on a triangular piece of land with a base of 121 yards and a height of 80 yards. The area of your land is
square yards.
fill in the blanks
Answer:
the area of the land is 4,840
Step-by-step explanation:
the equation for finding the area of a triangle is base x hight divided by 2
the temperature was -9 then increased by 17. what is it now?
Answer:
8
Step-by-step explanation:
-9+17=8
I gotta make it 20 characters long so I'm just adding this in :p
What is the equation in point-slope form of the line that passes through the point (4,-5) and has a slope of 2/3?
Answer:
m = 8 / -2 = 4 / -1 = -4
Step-by-step explanation:
At a concession stand, 9 slices of pizza and 5 soft pretzels cost $33.25. If 4 slices of pizza and 6 soft pretzels cost $19.50, what is the cost of a soft pretzel?
20x-4y=36 solve for y
need help plz
Answer:
5x-9
Step-by-step explanation:
Joshua borrows $300 from his older sister to buy a bike. He promises to pay the total amount plus 5% simple interest in one year. How much will Joshua
pay back in all?
Answer:
315
Step-by-step explanation:
Write an exponential function in the form y=ab* that goes through points (0.7) and (2.63)
Answer:
6.73
Step-by-step explanation:
what is the answer to the question?
Answer:
[tex]HL\ Congruency[/tex]
Step-by-step explanation:
[tex]As\ we\ know\ that,\\HL\ Congruency\ states\ that\ if\ the\ hypotenuses\ and\ any\ sides\ of\ two\\ right\ triangles\ correspond,\ the\ triangles\ are\ congruent.\\Hence,\\Here,\\AC\ [Hypotenuse\ of\ \triangle CDA]=BD [[Hypotenuse\ of\ \triangle BAD]\\\angle BAD=\angle CDA=90[Hence,\ the\ two\ triangles\ are\ right\ triangles]\\AD[In\ \triangle BAD]=AD[In\ \triangle CDA] [Common\ Side]\\Hence, Through\ HL\ Congruency\ Theorem\ \triangle BAD\ is\ congruent\\to\ \triangle CDA.[/tex]
Answer:
asa
Step-by-step explanation:
right angle
same base side
same distance to the other angle
Need help appreciate it
Answer:
Perimeter is 50
Area is 60
Step-by-step explanation:
To get the perimeter, you add all the lengths of the sides together.
To get the area, you do A=hb * b / 2, which is 60
Answer:
The answer is at the bottom!!
Step-by-step explanation:
A= b * h * 1/2
24 * 5 =120
120 / (1/2)=60
60= 24 * 5 * 1/2
P = a + b + c
P= 13 + 24 + 13
P=50
Hope this helps!!
(4x-1) /2=x+7
4x-1 all over 2 = x +7
Answer:
x = [tex]\frac{15}{2}[/tex]
Step-by-step explanation:
Given
[tex]\frac{4x-1}{2}[/tex] = x + 7 ( multiply both sides by 2 to clear the fraction )
4x - 1 = 2(x + 7) ← distribute
4x - 1 = 2x + 14 ( subtract 2x from both sides )
2x - 1 = 14 ( add 1 to both sides )
2x = 15 ( divide both sides by 2 )
x = [tex]\frac{15}{2}[/tex]
at an amusement park, children are charged an entrance fee of $20 plus $3 per ride and adults are charged an entrance fee of $28 plus $4 per ride. Identify your variable with a 'let' statement and write expressions for both children and adults that represent the cost for each group.
Answer:
T=3r+20 for the children and T=4r+28 for the adults
Step-by-step explanation:
Let r equal the amount of rides the person took, let T equal the total cost of the trip
Simplify:
(3*+ 2)
+3.5|3.9-7.31 – 21.34
17
OA) -15.23
OB) -4.44
OC) 17.9
OD) 38.24
Answer:
B.) -4.44
Step-by-step explanation:
Order of operations. Do the power then multiplication and division first.
which gets you: (5)+(11.9)-21.34=-4.44
Answer:
B
Step-by-step explanation:
URGENT!!!!!!!!!!!!!! help please!!!
please answer this. thank you
i need to find x for these
Answer:
1. x = 2
2. x = -2
3 x = 1
Step-by-step explanation:
Make x the subjects and work from there