Answer:
$102
Step-by-step explanation:
$85 x .2 = $17
$85 + $17 = $102
Step-by-step explanation:
100% = $85
1% = 100%/100 = 85/100 = $0.85
20% = 1%×20 = 0.85×20 = $17
so, the total cost of $85 + $17 = $102
which we could have gotten directly by multiplying
$85 by 1.2 (1.2 = 1 for the whole + 0.2 for 20%) = $102
but I wanted to show you the detailed, basic line of thinking behind the % calculations first.
whenever you have no other idea, get to 1% first and then take it from there.
Use the five-step strategy for solving word problems to find the number described.
When twice a number is decreased by five, the result is 43. What is the number?
David had to choose an apple and an
orange out of a total of 20 apples and
20 oranges. What is the probability that
he would choose the best looking apple
and best looking orange by choosing
randomly?
1
A.
20
1
B.
200
1
C.
100
1
D.
400
Answer:
200
Step-by-step explanation:
i think hope it helps
La suma de 3 menos que 5 veces un número y el número aumentado en 9 da 24,cuál es el número?
Answer:
you added on to that and you will get the answer
The table shows a proportional relationship between the number of stars Roberto collects in a game and his total points a row of values is missing which number of stars and total points could be used as the missing values in the chart
Answer:
A, C, D
Step-by-step explanation:
is anyone gonna help me with math?
Answer:
you need to place the centre of your protractor on the vertex of the two lines.
Step-by-step explanation:
Once you place it on the vertex, since the horizontal line is on the left side of the protractor, you start measuring the angle from the left side.
You keep on measuring the point where 2nd line overlaps some angle marking on the protractor.
For the bottom left angle, you need to place the protractor diagonally on the right most line as the horizontal line and then measure the angle.
Write the least possible 3-digit number using only 2 different numbers.
Answer:
100
Step-by-step explanation:
We assume that you are concerned with integers, and that you only count a number as "3-digit" if it does not have a zero in the hundreds place.
In order for the number to have a minimum value, the minimum available digit must be used in each number place, starting from the most-significant place--the hundreds place.
The least (non-zero digit) available for the hundreds place is 1.
The least digit available for the tens place is 0.
The least digit available for the ones place is also 0, since it is allowed to duplicate a digit already used.
The least possible 3-digit number using 2 different digits is 100.
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS
Answer:
350 ft
Step-by-step explanation:
its like a ratio for every 8 inches it is equal to 250 feet. so all you gotta do is 250 divided by 8 giving you 31.25. next you do 31.25 times 11.2 which is equal to 350.
Answer:
350 feet
Step-by-step explanation:
The other person is right LOL thanks to the other person
Write an equation for the line. Express each equation in standard form Ax + By = C, where A ≥ 0.
The line has slope 3 3 and passes through the point (-2,-5)
Answer:
y=8/5x-11
Step-by-step explanation:
Use synthetic division to solve (2 x cubed 4 x squared minus 35 x 15) divided by (x minus 3). What is the quotient? 2 x squared minus 2 x minus 29 StartFraction 102 Over x 3 EndFraction 2 x squared minus 2 x minus 29 StartFraction 102 Over x minus 3 EndFraction 2 x cubed 10 x squared minus 5 x 2 x squared 10 x minus 5.
Answer:
2x^2+10x-5 on edge
Step-by-step explanation:
Source: Dude trust me
The quotient of the division operation is 2x² + 10x - 5.
GivenThe equation (2x^3+4x^2-35x+15) divided by (x-3).
To find the division to solve the given equation following all the steps given below.
Step 1: Divide 2x³ by x, we obtain a quotient value of 2x²; multiply the quotient value by the divisor and Subtract to obtain a dividend of 10x² - 35x + 15.Step 2: Divide 10x² by x, we obtain a quotient value of 10x; multiply the quotient value by the divisor and Subtract to obtain a dividend of - 5x + 15Step 3: Divide - 5x by x, we obtain a quotient value of - 5; multiply the quotient value by the divisor and add to obtain 0.
Hence, the quotient of the division operation is 2x² + 10x - 5.
To know more about synthetic division click the given below.
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The Eiffel Tower is about 301 meters tall. Cooper is making a scale model of it using the scale factor 1:750.
To the nearest tenth of a meter, what will be the height of the scale model?
Enter your answer as a decimal in the box.
Answer:
0.4 mi is the correct answer,
Step-by-step explanation:
750 / 1 = 301 / x
The value of x is calculated as below.
x = 301 / 750
Simplifying,
x = 0.4
Hence, the answer to this item is 0.4 meters.
find slope please help mee!!!
7.1.4 Journal Arithmetic Sequence. Please help me on questions 4 and 5. The picture shows the sequence and what I need to fill out.
Questions:
4. Write the recursive formula for each sequence: an = an – 1 + d.
5. Find the explicit formula for each arithmetic sequence: an = a1 + (n – 1) • d.
Answer:
See below
Step-by-step explanation:
Recursive Formula for Arithmetic Sequences
[tex]a_n=a_{n-1}+d[/tex][tex]a_n[/tex] represents the nth term[tex]a_{n-1}[/tex] represents the preceding term[tex]d[/tex] represents the common differenceExplicit Formula for Arithmetic Sequences
[tex]a_n=a_1+(n-1)d[/tex][tex]a_n[/tex] represents the nth term[tex]a_1[/tex] represents the 1st term[tex]d[/tex] represents the common differenceErnest's Schedule Recursive Formula
We can see that the common difference is [tex]d=0.25[/tex] because for each week, Ernest swims 0.25 more kilometers than the preceding one. Therefore, the recursive formula for Ernest is [tex]a_n=a_{n-1}+0.25[/tex]
Ernest's Schedule Explicit Formula
Given our common difference [tex]d=0.25[/tex] from earlier and the fact that [tex]a_1=1[/tex] is our first term, the explicit formula for Ernest is [tex]a_n=1+(n-1)0.25[/tex]
Denise's Schedule Recursive Formula
We can see that the common difference is [tex]d=0.5[/tex] because for each week, Denise swims 0.5 more kilometers than the preceding one. Therefore, the recursive formula for Denise is [tex]a_n=a_{n-1}+0.5[/tex]
Denise's Schedule Explicit Formula
Given our common difference [tex]d=0.5[/tex] from earlier and the fact that [tex]a_1=1[/tex] is our first term, the explicit formula for Denise is [tex]a_n=1+(n-1)0.5[/tex]
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS
Answer: Choice A
[tex]\angle F \text{ and } \angle R[/tex]
========================================
Explanation:
The order of the lettering of GFHE and TRQS is important.
This is because the letters of each pair up together
G pairs with T (first letters)F pairs with R (second letters)H pairs with Q (third letters)E pairs with S (fourth letters)Because the figures are similar, the paired angles are congruent. So we can say [tex]\angle F \cong \angle R[/tex]
In terms of a visual confirmation, angles F and R are located in the bottom left corner. So this helps back up the answer. Though keep in mind that often the diagrams are misleading and not drawn to scale. So we can't always rely solely on the diagram.
What is 1+2? I need to know!!
Answer: It equals 12 Just kidding it equals 3
3•f(-4)-3•g(-2) = ???
evaluate function expression
Answer:
3•f(-4)-3•g(-2)
= -12f+6g
factorized form by taking common in both
= -6(2f-g) or 6(-2f+g)
( first one is minus 12f because plus into minus = minus)
(second one is plus 6g becuase minus into minus= plus)
hope it helps you
Mallory is on a budget and wants to determine which cereal is a better buy. A 10-ounce box of cereal costs $2.70, and a 13-ounce box of the same cereal costs $3.90.
Answer:
The 10-oz box for $2.70 is a better buy.
Step-by-step explanation:
$2.70 / 10 oz = $0.27/oz
$3.90 / 13 oz = $0.30/oz
The 10-oz box for $2.70 is a better buy.
Answer:
A 10 ounce box is a better buy
Explanation:
10=$2.70
1=27cents
13=$3.90
1=30 cents
plz can i get brainlest if its correct
A number is greater than 8. The same number is less than 10. The inequalities x greater-than 8 and x less-than 10 represent the situation. Which best explains the number of possible solutions to the inequality? There is one solution because 9 is the only number between 8 and 10. There are a three solutions because 8, 9, and 10 are possible solutions. There are a few solutions because there are some fractions and decimals between 8 and 10. There are infinite solutions because there is always another number between any two numbers.
Answer:
Our inequality is 8 < x < 10, where x is our number.
Since the problem doesn't specify whether the number x is an integer or not, we can assume that x can be either a decimal or a whole number. That means that we want any decimal number or whole number between 8 and 10. The only whole number is 9, but there are infinitely many decimal solutions. For example, we could have 8.001, 8.0001, 8.00001, etc.
Thus the answer is D.
Hope this helps!
Step-by-step explanation:
The total value of nickels, dimes, and quarters, in cents, in a bag is described by the expression below.
5n + 10d + 25q
What do the coefficients in the expression represent?
Answer:
The coefficients represent the number of coins.
Step-by-step explanation:
The coefficients (letters) stand for the type of coin it is and is the quantity of them in the equation. The number behind the coefficient represents the number of cents the coin is worth.
Thomas is conducting a survey of students in
the school. Of the students, 832 prefer vanilla
ice cream and 448 prefer chocolate ice cream.
What percentage of the total students prefer
vanilla ice cream?
please help
Find the slope of the line passing through the points (0, 2) and (1, -1)
**NOTE: Use the slope formula to find the slope: m=y2−y1x2−x1
the line passing through (0,2) and (1, -1)
Answer:
m= -3
Step-by-step explanation:
You should do m = -1 - 2 x 1 - 0 which equals m = -3
1 of 5
The ratio of boys to girls in a class is 7:5. There are 36 students in the class. How many
students are girls?
when y varies directly as the square root of x, the variation equation is y=kx^2
I) y=50 and x=10 find k
ii) calculate y when x=30
[tex]\qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\ \textit{\underline{x} varies directly with }\underline{z^5}\qquad \qquad \stackrel{\textit{constant of variation}}{x=\stackrel{\downarrow }{k}z^5~\hfill } \\\\[-0.35em] ~\dotfill[/tex]
[tex]\stackrel{ \begin{array}{llll} \textit{\tiny "y" varies directly}\\ \textit{\tiny as the square of "x"} \end{array}}{y = kx^2}\qquad \qquad \textit{we also know that} \begin{cases} y=50\\ x=10 \end{cases}\implies 50=k(10)^2 \\\\\\ \cfrac{50}{10^2}=k\implies \cfrac{1}{2}=k~\hfill \boxed{y=\cfrac{1}{2}x^2} \\\\\\ \textit{when x = 30, what is "y"?}\qquad y = \cfrac{1}{2}(30)^2\implies y = 450[/tex]
The equation has a solution of x = 5. What is the value of k? k =.
The value of k is -11.
Given
The equation 3√(x-k)-2=10 has a solution of x = 5.
How to find the value of k?To find the value of k put x = 5 in the equation then solve for the value of k.
Therefore,
The value of k is;
[tex]\rm 3\sqrt{x-k}-2=10[/tex]
Substitute x = 5 in the equation
[tex]\rm 3\sqrt{5-k}-2=10\\\\\rm 3\sqrt{5-k}=10+2\\\\\rm 3\sqrt{5-k}=12\\\\\rm \sqrt{5-k}=\dfrac{12}{3}\\\\ \sqrt{5-k}=4\\\\[/tex]
Squaring on both sides
[tex]\rm \sqrt{5-k}=\dfrac{12}{3}\\\\5-k=16\\\\-k = 16-5\\\\-k=11\\\\k=-11[/tex]
Hence, the value of k is -11.
To know more about Equation click the link given below.
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What is the solution to this inequality?
4.7>x−2 2/5
x>7.1
x<7.1
x<2.3
x>2.3
Answer:
Answer: x<7.1
Step-by-step explanation:
[tex]{ \tt{4.7 > x - 2 \frac{2}{5} }} \\ \\ { \tt{4.7 > x - \frac{12}{5} }} \\ \\ { \tt{x < 4.7 + \frac{12}{5} }} \\ \\ { \boxed{ \tt{x < 7.1}}}[/tex]
Find x and h (And show work)
Answer:
base=×
hypotenuse=6
prependicular=90
we know that
90÷6
×=15
An airplane propeller rotates 1000 times per minute. Find the number of degrees that a point on the edge of the propeller will rotate in 1 second.
The answer is 6000 degrees per second.
What is the unitary method?The unitary method is a method in which you find the value of a unit and then the value of a required number of units.
Given here: The propeller rotate4s 1000 times per minute. That means that the propeller rotates 1000 / 60 times per second.
That's 16 and 2/3 revolutions in 1 second.
16 * 360 = 5760 degrees.
2/3 * 360 = 240 degrees.
Total number of degrees is equal to 5760 + 240 = 6000 degrees per second.
Hence, The propeller rotates 6000 degrees per second.
Learn more about the unitary method here:
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your friend says the greater common factor of 15 and 30 is 5 is your friend cprrect explain ur reasoning
Answer:
Your friend is correct and its 15
Step-by-step explanation:
15 = 3*5
30 = 2*3*5
GCF = 3*5 = 15
solve the equation 4x + 6 = 4 + 2(2x + 1). Which choice describes the meaning of his result, 6 = 6?
Answer:
the equation is true
Step-by-step explanation:
solve the equation 4x + 6 = 4 + 2(2x + 1). Which choice describes the meaning of his result, 6 = 6?
4x + 6 = 4 + 2(2x + 1)
4x + 6 = 4 + 4x + 2
6 = 4 + 2
6 = 6
the equation is trueTwo buses leave a station at the same time and travel in opposite directions. One bus travels 18 mi/h faster than the other. If the two buses are 994 miles apart after 7 hours, what is the rate of each bus
Answer:
The distance each bus travels is given as d=tr where
- d is distance bus travels
- t is a time bus travels
- r is the speed of the bus
:
Distance first bus travels for 4 hours is d1=4r.
Distance other bus travels for 4 hours is d2=4(r+12).
:
The total distance between them is 480 miles and since they go in opposite directions this distance is the sum of distances each bus travels.
:
d1+d2=480
4r+4(r+12)=480
4r+4r+48=480
8r+48=480
8r=432
r=432/8
r=54 mph, this is a speed of the first bus
:
r+12=66 mph, this is the speed of the second bus
Hope this helps you!!!! :D
Solve the system using elimination.
=
2x + 3y = -2
3x - 6y = 18
Answer:
x= 2 y= -2
(2, -2)I hope this helps you!
