Answer:
4 quarters
4 nickels
Step-by-step explanation:
Solve the following systems of equations algebraically. Write your answer in the form of (x, y).
y = 3x + 5 and y = x + 19
What is it? A or B I've been stuck for a while please help
Answer:
Correct choice: B
Step-by-step explanation:
System of non-linear equations
It's given the following system of equations:
[tex]y=x^2+3x+5[/tex]
[tex]y=x+13[/tex]
We'll use the substitution method. Substituting y from the first equation into the second equation, we have:
[tex]x^2+3x+5=x+13[/tex]
Moving all terms to the left side:
[tex]x^2+3x+5-x-13=0[/tex]
Simplifying:
[tex]x^2+2x-8=0[/tex]
Factoring:
[tex](x+4)(x-2)=0[/tex]
There are two solutions:
x=-4, x=2
The first solution gives a value for y:
y=-4+13=9
First solution: (-4,9)
The second solution gives a value for y:
y=2+13=15
Second solution: (2,15)
Correct choice: B
I need help with this
Answer:
D
Step-by-step explanation:
Two doctors is % of 25 doctors
=_____%
Answer:
50
Step-by-step explanation:
Answer:
I believe it is 5 percent
Step-by-step explanation:
Hope it helps and is right.
use the table of values to explain if x and y are in a proportional relationship.
Answer:
Yes, they are in a porpotional relationship.
Step-by-step explanation:
How can you express (15 + 30) as a multiple of a sum of whole numbers with no common factor?
A.
2 × (7.5 + 15)
B.
3 × (5 + 10)
C.
5 × (3 + 6)
D.
15 × (1 + 2)
Answer:b because the equation is right.
Step-by-step explanation:
Step-by-step explanation:
D.
15 × (1 + 2) is you're answer
The domain of the function f(x) = -2x is restricted to the positive integers. Which values are elements of the range?
2
-4
0
-6
4
-2
6
9514 1404 393
Answer:
{-6, -4, -2}
Step-by-step explanation:
If the domain is positive integers, the range is negative even integers. The only ones on the list are ...
-2, -4, -6
The following are shoe sizes of a group of bowlers: 6.5 ,7 ,7 ,7 ,7.5, 8, 8.6, 8.5, 9, 9.6, 10.5, 11. What is the mean shoe size of the bowlers?
A. 8.5
B. 8.3
C. 8.7
D. 8.0
Answer:
8.3
Step-by-step explanation:
Add all of the shoe sizes together then divide by how many shoe sizes there are and you will get your answer
Solve the equation
[tex]-6 = x/8 + 4[/tex]
Answer:
You want to isolate for x -6= x/8+4Subtract 4
-10=1/8* x
Divide by 1/8
x= -80
Please rate positively and give brainlist!
Answer:
x = -80
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
-6 = x/8 + 4
Step 2: Solve for x
Subtract 4 on both sides: -10 = x/8Multiply 8 on both sides: -80 = xRewrite: x = -80Graph y= -4/5x -7
Algebra
If b= 3, then b-2 is equivalent to
Answer:
1
Step-by-step explanation:
son
Use the substitution method.
b-2
3-2
= 1
Answer :
1
pleaseeeee helppppp meee
Can someone help me with this problem ?
The answer is 83. 83+5=88. just subtract it.
Answer:
83
Step-by-step explanation:
You would subtract 5 from 88 to get Anjali's current age which is 83.
Twice a number is 42 less than five times a number. What is the number?
Answer:
21
Step-by-step explanation:
I am 90% sure but tell me if i'm wrong
Use the figure below for items 6-7.
Х,
8
w
Z
6. If WY + XZ = 28, what is PZ? 'hint: find WY first
7. If XP = 7x - 2 and PZ = 4x + 10, what is XZ?
El tripe de a edad de pedro mas 2 es igual a la edad actual de pedro mas 6. ¿Cuál es la edad actual de pedro?
Answer: Pedro tiene 2 años.
Step-by-step explanation:
Definamos la variable P como la edad de Pedro.
Sabemos que " El triple de la edad de pedro, más 2, es igual a la edad actual de pedro más 6"
Esto se escribe como:
3*P + 2 = P + 6.
Para encontrar la edad de Pedro, tenemos que resolver esa ecuación.
Para hacerlo, el primer paso es llevar todos los términos con "P" al lado izquierdo, y los términos sin "P" al lado derecho.
3*P - P = 6 - 2
2*P = 4
Ahora podemos dividir por 2 en ambos lados:
2*P/2 = 4/2
P = 2
Entonces podemos concluir que Pedro tiene 2 años.
Which are equivalent expressions?
Check all that are true.
A)8xy = 4x + 4y
B)x + 6x = 7x
C)x + 6y = 6xy
D)9x + 6y = 3(3x + 2y)
E)9a + 6b + 3c = 3(3a + 2b + c)
Answer:
DE
Step-by-step explanation:
D)9x + 6y = 3(3x + 2y)
E)9a + 6b + 3c = 3(3a + 2b + c)
there have the same concept
3*3x equals 9x and 3*3a is 9a
What is the equation of the new graph? Will mark brainlest
Answer:
c
Step-by-step explanation:
did the test
7.52 divided by 64 =
I Need help with 1-5
Answer:
1)=0
2)
[tex] \frac{ \sqrt{3} }{?2} [/tex]
3)
[tex] \sqrt{3} [/tex]
4)
[tex]2 + \sqrt{3} [/tex]
5) I don't know that one.
Which expression uses the associative property to make it easier to evaluate 6(3/2x1/5) ?
A: 6(2/3x1/5
B: 6(1/5x3/2)
C: (3/2x1/5)6
D: (6x3/2)1/5
Ghidu it g get stuck didjdgef
Answer:
It would be a
Step-by-step explanation:
the difference is 4/8 but simplified it is 1/2
8. Iris wants to buy two necklaces, one for her sister and one for herself. The necklace for her sister costs $42.00, and the necklace for herself costs $28.00. The sales tax on the purchases is 8%. Find the total cost of Iris's purchases, including sales tax. If necessary, round your answer to the nearest cent. C $75.60 A $64.40 B $5.60 B D $70.00
PLEASE HELP ME!!!!!!!!!!!!!
Charlie saves $2 for every $9 he earns. Melody saves $4A for
every $12 she earns. Is Charlie's ratio of money saved to money
earned equivalent to Melody's ratio of money saved to money
earned? Explain.
Answer:
They are the same.
Step-by-step explanation:
2x+y=42
8x+7y=36
Using the process of eliminations.
Answer:
x=43,y=-44
Step-by-step explanation:
hey i hope it helps you
2x+y=42(7)
8x+7y=36(1)
14x+7y=294
8x+7y=36
6x=258
divide both sides by 6
x=43
to get y
2x+y=42
equate x=43
8(43)+7y=36
344+7y=36
344-36=7y
308=7y
divide both sides by 7
y=-44
The chart below shows the rabbit and fox populations in boxerville over the last year. In which month was the rabbit population smallest?
Answer:
It is C. May
Step-by-step explanation:
Hope this helped have an amazing day!
In the month of may the rabbit population is smallest, option C is correct.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
A bar graph is the representation of numerical data by rectangles of equal width and varying height.
In the given chart the red bars shows the population of rabbits
the blue bar shows the population of the fox
From the given graph we have to find the month where the rabbit population is smallest.
The red bar is smaller in the month of may which represents that the population is small.
Hence, in the month of may the rabbit population is smallest.
To learn more on Graph click:
https://brainly.com/question/17267403
#SPJ7
NEED BY TODAY PLEASE GET RIGHT
The regular price of a bicycle is $120. The bicycle is on sale for 20% off. Which expression is equal to the sale price, in dollars, of the bicycle?
Answer:
$96
Step-by-step explanation:
120 x .20 = 24
120 -24 =$96
WORTH 100 POINTS!
Gerry and Tony live 11 miles apart. Gerry leaves his home at 2:00 PM and bikes toward Tony's house at 25 miles/hour. At the same time, Tony leaves his home and bikes toward Gerry's house at 30 miles/hour. They wave as they pass each other. As soon as each boy reaches the others' home, they turn back around towards their own homes. This time, they stop when they see each other. How far are they from Gerry's home when they stop?
Please write an equation or more than one equation using Distance=Rate*Time.
Answer:
7miles
equations shown in work image below
work shown on the paper with more explanations because text is hard to write equations (sorry I used km but it is miles for your problem.)
:) please give a heart for thanks
and brainliest crown :)
Step-by-step explanation:
For both d=r*t
Each bikes to others house and leave at the same time so for Tony,
11 = 30*t
t= 11/30 hours
for Gerry,
11 = 25*t
t= 11/25 hours
Comparing these, with LCD,
Tony's time is 55/150
Gerry's time is 66/150
So Tony got to Gerry's house 11/150 hours quicker than Gerry got to Tony's house.
Now they turn around and head back toward each other. If they leave at the same exact time, the elapsed time for each until they met would be the same so t (for tony) = t (for gerry), but Tony got a head start.
We start the stopwatch when Gerry turns around 11/150 hours after Tony has turned around. If Gerry's time to where they meet from Tony's house t(gerry), then Tony's time from Gerry's house is t(gerry) + 11/150
Step-by-step explanation:
For both d=r*t
Each bikes to others house and leave at the same time so for Tony,
11 = 30*t
t= 11/30 hours
for Gerry,
11 = 25*t
t= 11/25 hours
Comparing these, with LCD,
Tony's time is 55/150
Gerry's time is 66/150
So Tony got to Gerry's house 11/150 hours quicker than Gerry got to Tony's house.
Now they turn around and head back toward each other. If they leave at the same exact time, the elapsed time for each until they met would be the same so t (for tony) = t (for gerry), but Tony got a head start.
We start the stopwatch when Gerry turns around 11/150 hours after Tony has turned around. If Gerry's time to where they meet from Tony's house t(gerry), then Tony's time from Gerry's house is t(gerry) + 11/150
Step-by-step explanation:
pick her as the brainliest
What ordered pair corresponds to point D?
(in pic)
( , ) ?
i’ll give brainiest, don’t answer if you don’t know i need this due in less than 20 mins !!
Answer:
(2,0)
Step-by-step explanation:
point D is on point (2,0)
that is what it means
