Use your knowledge about parentheses and substitution to solve the following:
1. r(s)(t) =
2. (r)(s)(t)(x)(y) =
3. (7x + 2Y) =
Answer:
3x+y
Step-by-step explanation:
Gina visited the aquarium with some of her cousins, aunts, and uncles. The group bought 20 admission tickets for $340. Adult tickets cost $20, and children’s tickets cost $15. How many adult tickets and how many children tickets did the group buy?
Write a system of equations.
Answer:
Look at the attachment
Step-by-step explanation:
There are 12 children tickets did the group buy.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The group bought 20 admission tickets for $340.
And, Adult tickets cost $20, and children’s tickets cost $15.
Let number of children = x
And, Number of adult = y
Hence, We get;
The system of equations are,
x + y = 20
y = 20 - x .. (i)
And, 15x + 20y = 340
3x + 4y = 68 .. (ii)
Substitute the value of y from (i) in (ii);
3x + 4(20 - x) = 68
3x + 80 - 4x = 68
80 - 68 = x
x = 12
Thus, There are 12 children tickets did the group buy.
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WILL MARK BRAINLIEST what is the height of the seagull?
Answer:
Where is the area of the whole triangle tho-
Step-by-step explanation:
The property taxes on a home varies directly with the value of the home. Jack currently lives in a home worth $172,000 and pays $13,760 in taxes.
How much would someone pay in property taxes if they live in a $329,000 home in the same area?
Answer:
$26320
Step-by-step explanation:
Percentage solution with steps:
Step 1: We make the assumption that 172000 is 100% since it is our output value.
Step 2: We next represent the value we seek with x.
Step 3: From step 1, it follows that 100% = 172000.
Step 4: In the same vein, x% = 13760
Step 5: This gives us a pair of simple equations:
100% = 172000(1).
x% = 13760(2).
Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left-hand side) of both equations have the same unit (%); we have
100% / x% = 172000 / 13760
Step 7: Taking the inverse (or reciprocal) of both sides sides
x% / 100% = 13760 / 172000
=> x = 8%
Therefore, 13760 is 8% of 172000.
Now, I would multiply 329,000 by 8%(or 0.08) to get the answer 26320
Hope this helps!
Maybe brainliest?
He pays in property taxes $26320 if they live in a $329,000 home in the same area.
We have the following information available from the question is:
The property taxes on a home varies directly with the value of the home. Jack currently lives in a home worth $172,000 and pays $13,760 in taxes.
We have to find the how much would someone pay in property taxes?
Lets assume that:
The home worth cost is $172,000 is 100%
Let the property taxes be x
So, We equal to the value are:
$172,000 = 100%
Similarly, x% = $13,760
This gives us a pair of simple equations:
100% = $172000___(1).
x% = $13760___(2).
By simply dividing equation 1 by equation 2, we get:
100% / x% = 172000 / 13760
Taking the inverse (or reciprocal) of both sides sides
x% / 100% = 13760 / 172000
=> x = 8%
Therefore, 13760 is 8% of 172000.
They live in a $329,000 home in the same area, So
Multiply 329,000 by 8%(or 0.08)
=> 26320
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pls help me
the vertices of a triangle are A(2,4) B(2,1) C(3,1).reflect the triangle in the x axis then rotate it 90 degrees counterclockwise about the orgin. what are the new coordinates of the triangle?
Answer:
A:(4,2) B:(1,2) C:(1,3)
Step-by-step explanation:
During a rotation 90 degrees ccw the points go from (x,y) to (-y,x)
Help help help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
C
Step-by-step explanation:
PLEEESE HELP
i will give brainly to the right answer
Answer: a
Step-by-step explanation:
please help i'll give brainliest
Answer:
3/5
Step-by-step explanation:
PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY
If I invest $600 at an 11.5% interest rate, how much money will I earn over 5 years?
A. $945
B. $345
C. $69
D. $34.50
Answer:
B. 345
Step-by-step explanation:
Hope this helps!
On a math test, John correctly answered 10 questions. These correct answers gave him a percent score of 40%. How many total questions were on this test? (SHOW WORK)
Answer:
25
Step-by-step explanation:
10/x = 40/100
cross multiply
1000=40
25=x
Explain how (-2) + 8 is equal to 6
Step-by-step explanation:
-2+8 is the same as 8-2 which equals 6.
what do i do /for the two last ones which is even, bigger or smaller and what are they\
Answer
this is an ex: 2/3>1/3 i hope this helps a.= 10/9s is bigger so put < and b.= 5/4s is bigger so do >
Step-by-step explanation:
Please help ASAP! Thank u
Answer:
10
Step-by-step explanation:
A to B = 3
B to C = 2
2+2+3+3= diez
Christopher put 12 gallons of gas in her car. She uses one gallon for every 20 miles he drives.
a. Write an equation to represent the total amount of gas left in his car based upon how many miles she has driven.
b. Find the slope and y-intercept.
Answer:
Equation: y=(-1/20)x+12.
Slope: -1/20
Y-intercept: (0, 12)
Step-by-step explanation:
Let x=the number of gallons of gas in Christopher's car.
If we start with 12 gallons, we have the equation: y=(-1/20)x+12.
This equation is already in slope intercept form, so we see that the slope is -1/20, and the y-intercept is (0, 12).
Let me know if this helps!
Please help.
What is the circumference of the following circle?
(r = 1)
____ units
(the picture wouldn't work.)
Answer:
2π
Step-by-step explanation:
When a circle's radius is 1—called a unit circle—its circumference is 2π.
the measure of an angle is 12 degrees. what is the measure of its supplement
Answer:
168
Step-by-step explanation:
Supplementary angle is two angles that total 180 degrees.
180-12=168
Please help, giving 25 points!!!!!!!!
1/3x+y=15
Which of the following are ordered pairs of the equation above?
A. {(16, -3),(15, 0),(14, 3)}
B. {(-3, 14),(0, 15),(3, 16)}
C. {(-3, 16),(0, 15),(3, 14)
Answer:
B
Step-by-step explanation:
A)
-2+x=-x+2
Answer =
Answer:
The answer is x= 2
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Hoped this helped!
Brainly, Please?
BEST ANSWER GET BRAIN LIEST a thanks 5 star review AND 10 points
Complete the statement. Round to the nearest hundredth if necessary.
3 pt = (blank)c
3.17, because there are about 1.056 quarts in one liter.
1.056 times 3 = 3.168, which, rounded to the nearest hundredth, is 3.17.
hope this help :)
After rounding off the obtained value, the value obtained in quarts will be equal to 3.17 qt.
What is rounding off values?The act of simplifying a number so that its value remains near to what it was is known as rounding. The outcome of rounding off a figure is less precise but simpler to utilize. They directly involve if a number's digits are taken into account while rounding it.
As per the given information in the question,
As we know,
1 liter = 1.057 quarts
Then, the number of quarts in 3 L will be equal to,
3 × 1.057
= 3.171 ≈ 3.17 qt
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This question seems incomplete, the complete question may be:
Complete the statement. Round to the nearest hundredth if necessary. 3 L ≈ qt
The tables show the amount earned by James and Paco working at the same store.
What two equations can represent James and Paco's hourly wages, where h is the number of hours worked and d is the amount of money earned?
Compare the equations to determine if there is any difference between what James and Paco make each hour.
Answer:
Step-by-step explanation:
In order to determine if James and Paco earn different amounts of money per hour, you must find how much money they make in one hour.
James:
James makes $35.40 in 3 hours. So, in 1 hour, he would make 35.40/3 = 11.8.
James makes $11.80 an hour.
Therefore, his equation would be d = 11.8h
Paco:
Paco makes $24.00 in 2 hours. So, in 1 hour, he would make 24/2 = 12.
Paco makes $12.00 an hour.
Therefore, his equation would be d = 12h
Hence, Paco and James make different amounts of money. Paco makes 20 cents, or $0.20, more than James.
Answer:
d(James) = 11.8h
d(Paco) = 12h
Paco makes $0.20/h more than James
Step-by-step explanation:
equation: y = ax + b
James:
d(Amount of money earned) = ah(number of hours worked) + b
If James worked 3 hours: 3a + b = 35.4
If James worked 5 hours: 5a + b = 59
If
3a + b = 35.4
b = 35.4 - 3a
Then
5a + b = 59
5a + 35.4 - 3a = 59
2a = 59 - 35.4
2a = 23.6
a = 23.6/2
a = 11.8
If a = 11.8, then
3a + b = 35.4
3(11.8) + b = 35.4
35.4 + b = 35.4
b = 0
If a = 11.8 and b = 0
d(Amount of money earned) = ah(number of hours worked) + b
d = 11.8h
Each hour James works, he makes $11.8
Paco:
d(Amount of money earned) = ah(number of hours worked) + b
If Paco worked 2 hours: 2a + b = 24
If Paco worked 4 hours: 4a + b = 48
If
2a + b = 24
b = 24 - 2a
Then
4a + b = 48
4a + 24 - 2a = 48
2a = 48 - 24
2a = 24
a = 24/2
a = 12
If a = 12, then
2a + b = 24
2(12) + b = 24
24 + b = 24
b = 24 - 24
b = 0
If a = 12 and b = 0
d(Amount of money earned) = ah(number of hours worked) + b
d = 12h
Each hour Paco works, he makes $12
Don't do for points.
Don't get your account banned.
Don't be me
Round 6 6/13 to the nearest whole number.
Rounding to the nearest whole number involves writhing out the value of a number to the nearest integer value. Hence, the number would be written as 6
Converting the fractional value to decimal ; 6 61/3 = 6.461 Since the first digit after the decimal point is less than 5, we round to 0Therefore, the number would be written as 6 (nearest whole number).
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If the numbers listed below represent temperatures in degrees Celsius, which is the coldest?
-3, -2, -0.8, -0.1, 0.5, 0.8, 7
Answer:
-3 would be the coldest. Colder room temperatures fall below 0, and -3 is the lowest number
Step-by-step explanation:
The distance from Earth to the moon is 384,400 kilometers. What is this distance expressed in scientific notation?
3.844E5 kilometers
3.844 x 105 kilometers
3.844E-5 kilometers
3.844E-6 kilometers
3.844 x 106 kilometers
.
3.844E6 kilometers
3.844 x 10-6 kilometers
3.844 x 10-5 kilometers
ya
Answer:
B and E
Step-by-step explanation:
For every 4 quarters Robert has, he has 10 dimes. What is the ratio of quarters to dimes marbles? If Robert has 8 quarters, how many dimes does he have? Draw a visual model to represent the total coins.
Answer:
1. 4:10
2. 20 dimes
Step-by-step explanation:
I NEED HELP PLEASE!!!! It's due
PLEASE HELP WITH ANOTHOR FREAKING IXL
Answer:
its >
Step-by-step explanation:
when I was in school the bars ment it will become the opposite of the number inside so that means -90 will become 90
Answer:
90>70
Step-by-step explanation:
the ones in the lines r always even
Please help just answer any that you can think of
Answer:
[tex] \frac{5}{100} \times \frac{30}{1} [/tex]