Answer: -y=7
Explanation:
Think of your problem as subtraction:
2x-3y+15
-2x+3y=-1
A French class has a total of 26 students. The number of females is 6 less than the number of males. How many males and how many females are in the class?
Answer:
Step-by-step explain:
total-females=males
26-6=20
there are 20 males in the class.
I got subtraction because it says less females.
Question 4 (1 point)
Which statement best describes the effect on the graph of y = (x-9)2 if the equation is changed to y = (x+9)2?
Oa
Ob
Oc
Od
The graph moves up 18 units.
The graph moves right 18 units.
The graph moves down 18 units.
The graph moves left 18 units.
Answer:
left
Step-by-step explanation:
Answer:
c. the graph moves left 18 units
Step-by-step explanation:
edge 2021
(:
2y + 7x = -5
5y - 7x = 12
x =
y =
Answer:
x = - 1, y = 1
Step-by-step explanation:
Given the 2 equations
2y + 7x = - 5 → (1)
5y - 7x = 12 → (2)
Adding the2 equations term by term will eliminate the term in x, that is
7y = 7 ( divide both sides by 7 )
y = 1
Substitute y = 1 into either of the 2 equationsand solve for x
Substituting into (1)
2(1) + 7x = - 5
2 + 7x = - 5 ( subtract 2 from both sides )
7x = - 7 ( divide both sides by 7 )
x = - 1
solution is x = - 1, y = 1
Which of these is an example of driving at an average rate of 20 miles per hour?
A. driving 10 miles in 2 hours.
B. driving 15 miles in 5 hours.
C. driving 25 miles in 5 hours.
D. driving 40 miles in 2 hours.
Answer:
D
Step-by-step explanation:
40/2=20
Answer:
give the other guy the thing
Step-by-step explanation:
What is 7/8 + 8/45 =
Step-by-step explanation:
1.05277777778
hope it helps!
Answer:
1 19/360
Step-by-step explanation:
What we know:
The addends in this equation are 7/8 and 8/45.
First, find the LCM of 8 and 45. Since 8 and 45 don't have any common factors other than 1, just multiply the two numbers.
8 * 45 = 360
After that, find the equivalent fraction for both addends
7/8 * 45/45 = 315/360
8/45 * 8/8 = 64/360
Then, add the two new fractions together, and simplify if needed.
315/360 + 64/360 = 379/360 = 1 19/360
1. Simplify: (-6a5b+c)
Answer:
−6a^5b+c
Step-by-step explanation:
franklin is thinking of two numbers. the sum of the two numbers is 40.the first number x, is 11 less than twice the second number, y. which system of equations can be used to find the two numbers? A) xy=40, x=2y-11 B) x+y=40, x=11-2y C) x-y=40, x=11-y D)x+y=40, x=2y-11
Answer: d) x+y =40
x=2y -11
Step-by-step explanation:
What is the common ratio of this sequence: 4, 20, 100...?
pls
Step-by-step explanation:
5 is the answer
..................
how many solutions does
7x=4x-7 have?
A) one solution
B) two solutions
C) No solutions
D) infinite solutions
Answer:
A , one solution.........
Force is giving away tickets to a school play. She gives away 20 more adult tickets than children's tickets. She gives away 3 times as many senior tickets as she does adult tickets. Force gives away 40 children's tickets.
A.273
B.79
C.318
D228
The total number of tickets given away is 280
How to determine the total number of tickets?To do this, we make use of the following representations:
c represents childrena represents adultss represents seniorFrom the question, we have the following equations:
a = 20 + c --- 20 more adult than children
s = 3a ---- 3 times as many senior as adult
c = 40 --- number of children tickets
Substitute c = 40 in a = 20 + c
a = 20 + 40
a = 60
Substitute a = 60 in s = 3a
s = 3 * 60
s = 180
The total number of tickets is:
Total = a + c + s
This gives
Total = 60 + 40 + 180
Evaluate
Total = 280
Hence, the total number of tickets given away is 280
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Solve the equation 25+11/12b = 47 [11/12 is the fraction eleven twelfths]
DUE IN 10 MINUTES NO TROLL ANSWERS OR GET REPORTED THE QUESTION IS FOR 20 POINTS
Answer:
i think b=24
Step-by-step explanation:
Answer:
b = -864/11 = -78.545
Step-by-step explanation:
Total price: $128,500
Tax or tip rate: 5.5%
Answer:
Step-by-step explanation:
5.5% of 128,500
(128500*5.5)/100=7067.50
Helpppp:)
A tank full of water is leaking at a constant rate for 25 minutes. The equation
y = -4x + 220
describes the amount of water in the tank, where yis the number of liters and
x is the number of minutes that has elapsed since the tank started to leak.
Which statement is true?
A. There were 4 liters in the tank when the leak started, and it is
increasing by 220 liters per minute.
B. There were 220 liters in the tank when the leak started, and it is
decreasing by 4 liters per minute,
C. There were 4 liters in the tank when the leak started, and it is
decreasing by 220 liters per minute.
D. There were 220 liters in the tank after 25 minutes, and it
decreasing by 4 liters per minute.
Answer:
Is it B
Step-by-step explanation:
Answer:
Step-by-step explanation:
B test!
Demetrius received his phone bill in the mail. The bill was for $99.00 and the sales tax was 4.5%. He ended up paying $94.54 for his bill.
True
or
False
Answer:
false
Step-by-step explanation:
i think the answer is false srry if i am wrong
ASAP PLZ HELP ME WILL MARK AS BRAINLIST IF RIGHT ANSWER
Answer:
28
Step-by-step explanation:
AB
4(7)=28
Answer:
3/4 BC or 3/2 CD
Step-by-step explanation:
AB = 3
BC = 4
4 x 3/4 = 3
CD = 2
2 x 3/2 = 3
Multiply then write fraction in simplest form
Answer: 1 7/30
Step-by-step explanation:
Write the simplest polynomial function with the given roots 1/2,5, and -2
Answer:
x³-7x²/2-39x/2 + 10Step-by-step explanation:
Given 1/2,5, and -2 as roots of the polynomial, the function in terms of x is expressed as;
P(x) = (x - 1/2)(x - 5)(x+2)
Expand;
(x - 1/2)(x - 5) = x²-5x -x/2 + 5/2
(x - 1/2)(x - 5) = x²-11x/2 + 5/2
P(x) = (x²-11x/2 + 5/2)(x+2) = x³+2x²-11x²/2-22x+5x/2 + 10
P(x) = x³-7x²/2-39x/2 + 10
Hence the required polynomial is x³-7x²/2-39x/2 + 10
What is the slope of the line that passes through the points -16,0 and -8,2?
Answer:
1/4
Step-by-step explanation:
0 - 2 = -2
-16 - -8 = -8
-2/-8 = 1/4
What type of decimal is this fraction: LaTeX: \frac{11}{20}
terminating
neither
both
repeating
11/20
Divide 11 by 20 to find the decimal value.
11/20 = 0.55
The decimal only contains two numbers, so it is a terminating fraction.
please help me i need help asap
Answer:
-6
Step-by-step explanation:
Add the positive numbers first which is nine then add a negative like -8 and you get then add -7 which is -6
What is the value of the expression 6 + 5 · (8 ÷ 2) 2 ?
Answer:
88
Step-by-step explanation:
6+5=11
8/2=4
11x(4)2
The value of the expression 6 + 5 . (8 ÷ 2) 2 is 46.
What is BODMAS rule?BODMAS rule is a rule of calculating expressions which include more than one different mathematical operations.
BODMAS is an abbreviation for Brackets, Orders, Division, Multiplication, Addition and Subtraction.
So while calculating expressions including different operations, we should follow this order.
Here, the given expression is 6 + 5 . (8 ÷ 2) 2.
By BODMAS rule, we should calculate the expression in the bracket first.
8 ÷ 2 = 4
So, the expression becomes 6 + 5 × 4 × 2.
There are two operations, multiplication and addition here.
We should go for multiplication first.
5 × 4 × 2 = 40
The expression becomes 6 + 40 = 46.
Hence we got the value of the expression 6 + 5 . (8 ÷ 2) 2 as 46.
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The amount of time it takes a water pump to empty a tank varies directly as the capacity of the tank. If it takes a water pump 2.5 hours to empty a tank containing 60,000 gallons of water, how long does it take the same pump to empty a tank containing 108,000 gallons of water?
Answer: 4.5 hours
Step-by-step explanation: i used cross multiplication.
2.5/x=60,000/108,000
60,000x=270,000
divide 270,000 by 60,000
x=4.5
An equation is formed when two equal expressions. The time the same pump will take to empty a tank containing 108,000 gallons of water is 4.5 hours.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given that the amount of time it takes a water pump to empty a tank varies directly with the capacity of the tank. Therefore, the relationship can be written as,
V ∝ T
V = kT
Substituting the volume and time in the equation,
60,000 gallons = 2.5 hours × k
Solving the equation for k,
k = 60,000 gallons / 2.5 hours
k = 24,000 gallons per hour
Now, the equation for the relationship can be written as,
V = 24,000 gallons per hour × T
Now, the time the same pump will take to empty a tank containing 108,000 gallons of water is,
V = 24,000 gallons per hour × T
108,000 gallons = 24,000 gallons per hour × T
108,000 gallons / 24,000 gallons per hour = T
T = 4.5 hours
Hence, the time the same pump will take to empty a tank containing 108,000 gallons of water is 4.5 hours.
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PLEASE HELP!! BRAINILIESTTTT
Answer:
The element is Boron(B)
Step-by-step explanation:
This is because on the periodic table, it shows that Boron has 5 protons and 5 electrons
What is the equation of the line shown in the coordinate plane below?
Mr. Roy was creating bundles for his classes. He had 20 pencils, 80 pens and 55 markers.
He wanted each bundle to contain the same number of pencils, pens and markers.
a) What is the largest number of bundles he could create without any left over?
Answer:
The largest number of bundles he could create without any left over is 5.
Each bundle to contain 4 pencils, 16 pens and 11 markers
Step-by-step explanation:
Pencils = 20
Pens = 80
Markers = 55
a) What is the largest number of bundles he could create without any left over?
Find the highest common multiple of 20, 80 and 55
20 = 1, 2, 4, 5, 10, 20
80 = 1, 2, 4, 5, 8, 10, 16, 20......
55 = 1, 5, 11, 55
The highest common multiple of 20, 80 and 50 is 5
Pencils = 20 / 5
= 4
Pens = 80 / 5
= 16
Markers = 55 / 5
= 11
The largest number of bundles he could create without any left over is 5.
Each bundle to contain 4 pencils, 16 pens and 11 markers
The Statue of Liberty, Grand Canyon, and Empire State Building are all examples of __________ good.
A.
private
B.
public
C.
industry
D.
consumer
Please select the best answer from the choices provided
A
B
C
D
Answer:
its c im pretty sure
Step-by-step explanation:
i got it right on my quiz
Joey mows his neighbors lawns and earns $31.50 in 7 hours. How much does he make in 17 hours?
Answer:The blouse was 28 dollars.
Step-by-step explanation:
How many hours do they have to work before they go to the movies
Cell phone Plan A costs $70 per month and comes with a free $500 phone. Cell phone Plan B costs $50 per month but does not come with a phone. If you buy the $500 phone and choose Plan B, how many months is it until your cost is the same as Plan A's?
I got two different answers last time. One said 25 and the other said 11. Are either of them correct?
Answer:
25 months
Step-by-step explanation:
Plan A : $70 per month
Plan B : $50 per month + $500 as a one time cost.
So for A $70 a month would take 8 months to be at least $500
And for B it in those 8 months it would cost you $900
But we have to keep going up until they are equal
25*70 = 1750
(25*50) = 1250+500=1750
So yes 25 months is correct
PLEASE HELP- 56 DIVIDED BY 1.6
Answer:
35
Step-by-step explanation:
how are u pls answer Me guys i will get a bad grade pls answer meeee
Answer:
i am great thank u how are u?
Step-by-step explanation: