Answer:
I hope this helps 40 divided by 4 is 10 10 per person 10-2=8 8 coins in each players bag and the total amount of coins in bags is 8 times 4 which is 32
Step-by-step explanation:
How many gallons of 60% antifreeze solution must be mixed with 70 gallons of 20% antifreeze to get a mixture that is 50% antifreeze.
(Round to the nearest whole number)
Answer:
Answer: Add 315 gallons of 70% antifreeze to 90 gallons of 25% antifreeze to make a 60% mixture.
You need to end up a mixture that is 60% antifreeze.
You have 90 gallons of 25% antifreeze, which means it has .25*90 = 22.5 gallons of pure antifreeze mixed with a solvent (probably water).
.
You will add 'x' gallons of 70% antifreeze to make the 60% mixture.
So, at the conclusion, you will have (90+x) gallons 60% 'pure' antifreeze. That can be shown with the equation:
.
.25*90 + .7*x = .6*(90+x)
.
Multiply by 100 to eliminate fractions.
.
25*90 + 70x = 60(90 +x)
.
2250 + 70x = 5400 + 60x
.
10x = 5400 -2250
.
10x = 3150
.
x = 315 gallons of 70% antifreeze.
.
How much will you end up having on hand?
90 + 315 = 405 gallons
.
If it is 60% antifreeze, how much 'pure' antifreeze will be in the mixture?
.6*405 = 243
.
In the original 90 gallons, you have 22.5 gallons of pure antifreeze.
In the additional 315 gallons, you have .7*315 = 220.5 gallons.
22.5+220.5 = 243 gallons
Step-by-step explanation:
Evaluate (–1)8 + (–1)7 – 16 – 14 – (–1)2. Pay attention to the placement of the parentheses and negative signs. Question 1 options: A) 5 B) –3 C) –4 D) –23
Explain your answer !!
Have a nice day
Will give braisnlt
Answer:
y=-4
Step-by-step explanation:
20 minus 8 and 1/4 and 5 and 4/5
Answer:
Step-by-step explanation:
17.55
Answer: 5 19/20
Step-by-step explanation: hope this helps :D
The last question: Did the majority of students pass the quiz (70% or Better)?
Answer:
Yes, the majority of the students did pass !
What is the perimeter of this tile?p
Answer:
16 inches
Step-by-step explanation:
The tile is rectangular, so the other 2 sides have lengths 2in and 6in.
The perimeter is 2in + 6in + 2in + 6in = 16in
Answer:
16
Step-by-step explanation:
the long sides are both 6 inches
6+6=12
the short sides are both 2 inches
2+2=4
add all the sides together
12+4=16
Emily can ride her scooter 18 miles in 50 minutes. What
is her unit rate in miles per hour? Show your work.
WILL GIVE BRAINLIEST!!!!
Answer:
21.6 mph
Step-by-step explanation:
10 mins is 3.6 miles so if you add 18 miles and 3.6 miles you get 21.6 mph
(Also I explained 10 mins because 50 mins + 10 mins= 1 hr)
6. Which of the following problems
can be solved using the equation
x - 9= 15?
F. Allison is 9 years younger than her
sister Pam. Allison is 15 years old.
What is x, Pam's age?
G. David's portion of the bill is $9 more
than Jaleel's portion of the bill. If
Jaleel pays $9, find x, the amount in
dollars that David pays.
H. The sum of two numbers is 15. If one
of the numbers is 9, what is x, the
other number?
I. Calvin owns 15 CDs. If he gave 9 of
them to a friend, what is x, the
number of CDs he has left?
Copyright © The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classro
H. line 6
I. line d
to 12 gives a sum
Answer:
F
Step-by-step explanation:
x-9=15 will equal to 24 so x=24
if Allison is 15 but she is 9 years younger then Pam, Pam is x, so all you have to do is count up from 15, so 15+9 which equals 24 Pam is 24 making F the right choice
Solve for x
Please help!!!!!
Answer:
6
Step-by-step explanation:
19x-4=17x+8
2x=12
x=6
Answer:
6
Step-by-step explanation:
19x-4=17x+8
19x-17x=8+4
2x=12
x=12/2
x=6
There were 52 riders on a bus. The next bus had 25% more riders. How many riders were on the next bus?
Answer:
65 riders
Step-by-step explanation:
52 times 0.25 = 13 (25% of 52)
52 + 13 = 65
Answer:
There were 65 riders on the next bus.
Step-by-step explanation:
To solve this you have to know what 25% of 52 is, and since 25% of 52 is 13, you have to add 52 and 13 so you get 65 as your result.
I hope this helps you :D
Suppose you have a bag with 10 black and 10 red balls, with the balls of each color numbered 1 to 10. Suppose you pick two balls uniformly at random from the bag.
a. Show that the probability that you pick a ball of each color is 10/19.
b. Show that the probability that you pick a ball of each color, with the number on the red ball being one less than the number on the black ball, is 9/190.
Answer:
Step-by-step explanation:
[tex]\text{From the given information:}[/tex]
[tex](a)[/tex]
[tex]\text{ P(ball of each color)=P(1st ball is black \& 2nd (red)) + P(1st(red) \& 2nd(black)})[/tex]
[tex]\text{ P(ball of each color)} = {P(1st (black) \times P(2nd \ red \ | \ 1st black) }+P(1st \ red) \times P(2nd \ black \ | \ 1st \ red)}[/tex]
[tex]\text{ P(ball of each color)} = \Big(\dfrac{10}{20}\Big ) \times \Big(\dfrac{10}{19}\Big ) + \Big(\dfrac{10}{20}\Big ) \times \Big(\dfrac{10}{20}\Big )[/tex]
[tex]\text{ P(ball of each color)} = \Big(\dfrac{10}{19}\Big )[/tex]
[tex](b)[/tex]
[tex]\text{If the combination of total no. of black \& red balls with no =10*10 =100}[/tex]
[tex]Then;[/tex]
[tex]\text{the no. of ways red is less than no. of black = 9}[/tex]
[tex]Thus:[/tex]
[tex]\text{P(ball of each color and number on red ball is 1 less than number of black ball is :)}[/tex][tex]= \text{P(ball of each color) * P(red is 1 less than black [] ball of each color)}[/tex]
[tex]=\Big( \dfrac{10}{19}\times \dfrac{9}{100} \Big )[/tex]
[tex]= \dfrac{9}{190}[/tex]
Erven is painting canvases. Each canvas requires 4 ounces of paint. He has 21 ounces of paint. What
is the greatest number of canvases Erven could paint?
QUICKKKK PLEASEEE AND IN FRACTIONS
Answer:
5 1/4
Step-by-step explanation:
If each canvas takes up 4 oz of paint then you should take 21 and divide it by 4 to get the answer. Erven can only paint 5 full canvases and 1/4 of another canvas.
Help
=================
Answer:
8 in²
Step-by-step explanation:
The area of a triangle is always base times half height. Since this triangle has a 90° corner, the vertical 4 inch is also the height.
So area is 4*4/2 = 8
Find the slope of the line that passes through (3, -1) and (4, 7)
Answer:
Written in slope-intercept form.
y = mx + b
The answer to your question would be
m = 8
Please solve this for 15 points
Answer:
on the outside of the bracket. The divisor is the number you're dividing by.Set up the division problem with the long division symbol or the the dividend, on the inside of the bracket. The dividend is the number you're dut 32, the divisor, on the outside of the bracket. The divisor is the number you're dividing by.Set up the division problem with the long division symbol or the long division brackPut 487, the dividend, on the inside of the bracket. The dividend is the number yoPut 32, the divisor, on the outside of the bracket. The divisor is the number you're dividing by.
Step-by-step explanation:
Given g(x)=5x+2, find g(-6)
Answer:
Please refer to the attachment
Hope it helps
Please mark me as the brainliest
Thank you
What is the product of 5/14 and 7/20
Answer:
⅛
Step-by-step explanation:
⁵⁄₁₄ x ⁷⁄₂₀
= ⁵ˣ⁷⁄₁₄ₓ₂₀
=³⁵⁄₂₈₀
=⅛
What is 3-6? Please help meeeee
your answer is going to be -3
Answer:
The Answer to 3-6 is -3!
Step-by-step explanation:
Think of it as a regular problem at first, 6-3: Switch the rolls!
6-3= 3 So when you switch the numbers back to 3-6, you get -3.
The answer has to have a negative sign (-) because it is a negative, a number below zero.
3-3= 0, 3 is half of 6, 6 is the number you need to subtract so you have to go below zero because subtraction is all about taking away from that first number. So 3-3= 0, 0-3= -3.
Hope that helped you!
Y is 1 1/3 times x.
Which ratio is equivalent to y : x ?
A. 3:3
B. 4:3
C: 7:3
D: 3:7
Answer:
B. 4:3
Step-by-step explanation:
Note: I use the '&' mark to symbolize mixed fractions, since it's easy to mistake the whole number for part of the numerator. Don't do this for assignments, as it's not proper.
1 & 1/3 = 4/3
Thus, the answer is B. 4:3.
What is the best measure of center for the following data set?
{ 2, 18,18, 20, 22, 24, 25}
A)Range
B)Median
C)Mean
D)Mode
Answer:
b) median: there are 7 numbers listed; 20 is the middle number among them
range: subtract lowest from highest number 25-2=23
mean: add all the numbers together =129
mode: place numbers in order (smallest to greatest), then see which number appears the most 2, 18, 18, 20, 22, 24, 25=18
Step-by-step explanation:
please solve this class 10 function
if f={(x,y):3y-2x=6} find f-¹(x)
Answer:
f −1 (x)= x/2+3
Step-by-step explanation:
Here take y=f(x)
Then y=2x−6
⇒2x=y+6
⇒x= y/2 +3
Now switch x and y in the resulting equation. The resulting function of x is the inverse.
⇒y= x/2 +3
Thus the inverse function is f −1 (x)= x/2+3
how to sketch the graph
Answer:
is the skill that is worth the effort it takes to learn
Step-by-step explanation:
its helpful
Answer:
[tex]1)draw \: a \: table \: of \: value \: for \: at \: lest \: two \: values \: \\ \\2)locate \: the \: two \: points \: (x1 \: y1)and \: (x2 \: y2) \: on \: gragha \: pape. \\ \\ 3)join \: the \: two \: pints \: with \: a \: straight \: line \: extending \: beyond \: the \: points.[/tex]
HELP ME PLEASEEEEE!!!! (joyce if u answer something unproper u will get reported)
7+2x divided by 3 equals 5
Answer:
x=4
Step-by-step explanation:
Answer:
x = 4
Step-by-step explanation:
First multiply both sides by 3. This gives us:
7 + 2x = 15
Next, subract 7 from each side:
2x = 8
Last, divide each side by 2:
x = 4
What is the answer to 11/8 + (51/2 + 2 3/8)
Please hurry.
Answer:
29 3/4
Step-by-step explanation:
Plz help will give brainliest!!
Answer:
1.25 Dozen.
Step-by-step explanation:
Per means each. By Means Of
Answer:
1.25 per muffin
Step-by-step explanation:
15 divided by 12 and you get 1.25
to make sure 1.25 times 12 you get 15 dallors
Terrence cuts a piece of cake for himself.
Answer the following 2 questions regarding this piece of cake.
The first thing you need to notice on this prism is that the base of this prism is actually a triangle, making it a triangular prism. This is because the triangles are the only sides that are parallel to each other.
What is the area of the triangular base?
Answer: cm2
Answer:
Disect the shape
Step-by-step explanation:
6 x 10 x 18 ÷ 2 = (Answer)
Identify the independent and dependent variables.
The equation A=25w represents the area A (in square feet) of a rectangular dance floor with a width of w feet.
Andre ran 2 kilometers in 15 minutes and Jada ran 3 kilometers in 20 minutes. Both ran at a constant speed. Did they run the same rate? Explain or show your reasoning.
You might use:
-ratio tables
-double number lines
-unit rates
-Equivalent ratios
yeah
Answer:
no, Andre ran at a sperm of 8km/hr while jada ran at 9km/hr you can find that by Andre going 2km in 15 minutes which turns to hours by multiplying by 4/4 to get 8/60 which 60 minutes is 1 hour then jada multiply by 3/3 which would be 9/60
A curve is represented by the parametric equations x=t , y=3t^2 find the area under the curve from t=1 to t=2
Answer:
[tex]\displaystyle A = 7[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightPre-Calculus
Parametric to Rectangular Form ConversionCalculus
Integrals - Area under the curve
Area of a Curve Formula: [tex]\displaystyle A = \int\limits^b_a {f(x)} \, dx[/tex]
Integration Rule [Reverse Power Rule]: [tex]\displaystyle \int {x^n} \, dx = \frac{x^{n + 1}}{n + 1} + C[/tex]
Integration Property [Multiplied Constant]: [tex]\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx[/tex]
Integration Rule [Fundamental Theorem of Calculus 1]: [tex]\displaystyle \int\limits^b_a {f(x)} \, dx = F(b) - F(a)[/tex]
Step-by-step explanation:
*Note:
The area under the curve is essentially the definition of an integral.
Step 1: Define
Parametric
x = t
y = 3t²
1 ≤ t ≤ 2
Step 2: Rewrite
Rewrite parametric to rectangular form and change bounds of integration.
[Parametric] Substitute in t: y = 3x²[Parametric] Plug in values of t [Bounds]: 1 ≤ x ≤ 2Step 3: Find Area
Integration.
Substitute in variables/function [Area]: [tex]\displaystyle A = \int\limits^2_1 {3x^2} \, dx[/tex][Area] Rewrite [Integration Property - Multiplied Constant]: [tex]\displaystyle A = 3\int\limits^2_1 {x^2} \, dx[/tex][Area] Integrate [Integration Rule - Reverse Power Rule]: [tex]\displaystyle A = 3(\frac{x^3}{3}) \bigg| \limit^2_1[/tex][Area] Evaluate [Integration Rule - Fundamental Theory of Calculus 1]: [tex]\displaystyle A = 3(\frac{2^3}{3} - \frac{1^3}{3})[/tex][Area] (Parenthesis) [Fraction] Evaluate exponents: [tex]\displaystyle A = 3(\frac{8}{3} - \frac{1}{3})[/tex][Area] (Parenthesis) Subtract: [tex]\displaystyle A = 3(\frac{7}{3})[/tex][Area] Multiply: [tex]\displaystyle A = 7[/tex]Topic: AP Calculus AB/BC
Unit: Area under the curve
Book: College Calculus 10e