Given problem:
Solve using the property of equality;
-7 + x = 12
The properties of equality are;
Addition. Definition. If x = y, then x + c = y + c. ...
Subtraction. Definition. If x = y, then x – c = y – c. ...
Multiplication. Definition. If x = y, then xc = yc. ...
Division. Definition. If x = y and c is not equal to 0, then x / c = y / c
Now;
- 7 + x = 12;
base on the properties of equality, to eliminate -7, add +7 to both sides;
-7 + 7 + x = 12 + 7
x = 19
Based on the properties of equality, the solution is 19
wut is the soulotion to this eqation2x+10=28
Answer:
x=9
Step-by-step explanation:
Step 1: Subtract 10 from both sides.
2x+10−10=28−10
2x=18
Step 2: Divide both sides by 2.
2x /2 = 18 /2
Given m∠2=130°, what is m∠9?
m-9 is 50 using the laws
20 points and marked brainliest!!!!
Answer:
x=37
Step-by-step explanation:
(2x-5) + (3x +10) = 180
5x-5=180
5x=185
x=37
Answer:
answer is x=37 hope this works
Step-by-step explanation:
Help, dont understand
Answer:
its B
Step-by-step explanation:
Andrew rents bowling shoes for $4. He bowls 2 games. Andrew spent a total of $22. How much was the cost of each game, b? Complete the bar diagrams, and then solve the problem. Three bar graphs. Top bar on each is Total Spent. Bottom bar on each has 3 sections. The left section is labeled shoe rental, and each of the other sections is labeled cost per game. The cost per game sections are b. The other parts have fill-in boxes. Each game cost .
Answer:
2b + 4 = 22
b= 9, the cost of each game is $9
Step-by-step explanation:
On her first day in a hospital, Kiri receives u1 milligrams (mg) of a therapeutic drug. The amount of the drug Kiri receives increases by the same amount, d, each day. On the seventh day, she receives 21 mg of the drug, and on the eleventh day she receives 29 mg.
a. write down an equation, in the terms u1 and d, for the amount of the drug that she receives on the seventh day.
b. write down an equation, in terms of u1 and d, for the drug that she receives on the eleventh day.
c. write down the value of d and the value of u1.
Answer:
a. 21 = u1 + 6·d
b. 29 = u1 + 10·d
c. d = 2, u1 = 9
Step-by-step explanation:
a. The given parameters are;
The amount of therapeutic drug Kiri receives on her first at the hospital = u1 milligrams
The amount of drug increase received by Kiri each day = d
The amount of drug Kiri received on the seventh day = 21 mg
The amount of drug she received on the eleventh day = 29 mg
Therefore, we have an arithmetic progression with the formula for the nth term given as follows;
aₙ = a₁ + (n - 1)·d
Where;
a₁ = u1
n = The number of terms
Therefore, for the 7th day, the amount of drugs she receives, which is 21 milligrams, is given as follows;
a₇ = u1 + (7 - 1)·d = u1 + 6·d = 21
The equation for the amount of drugs she receives in terms of u1 and d on the seventh day is given as follows;
21 = u1 + 6·d
b. For the eleventh day, the amount of drugs she receives, which is 29 milligrams, is given as follows;
a₁₁ = u1 + (11 - 1)·d = u1 + 10·d = 29
Therefore, the equation for the amount of drugs she receives in terms of u1 and d on the eleventh day is given as follows;
29 = u1 + 10·d
c. Therefore, we have two equations which are given as follows;
21 = u1 + 6·d................(1)
29 = u1 + 10·d..............(2)
Subtracting equation (1) from equation (2) gives;
29 - 21 = (u1 + 10·d) - (u1 + 6·d)
8 = 4·d
d = 8/4 = 2
d = 2
From equation (1), we have;
21 = u1 + 6·d = u1 + 6×2 = u1 + 12
21 = u1 + 12
21 - 12 = u1
∴ u1 = 9
d = 2, u1 = 9.
What is a function Inverse
Answer:
an inverse function (or anti-function) is a function that "reverses" another function
Step-by-step explanation:
Answer:
an inverse function is a function that "reverses" another function: if the function f applied to an input x gives a result of y, then applying its inverse function g to y gives the result x, and vice versa, i.e., f(x) = y if and only if g = x.
Una empresa comercial vende automóviles cuyo precio es de S/. 60 000, con una cuota inicial del 20%, para cancelar el saldo en 30 meses de plazo.calcula la cuota fija mensual que se pagará seda empresa cobra una tasa de interés simple del 12% semestralmente
Responder:
2560
Explicación paso a paso:
Dado lo siguiente:
Precio del automóvil = 60000
Cuota inicial = 20% del precio = (0.2 * 60000 = 12,000
Saldo = (60000 - 12000) = 48000
La empresa cobra un interés simple del 12% cada 6 meses
Periodo de pago = 30 meses / 6 = 5 periodos
Interés simple: p * r * t
= 48000 * 0,12 * 5 = 28800
Por lo tanto, monto total a reembolsar, incluidos los intereses:
Balance + 28800; 48000 + 28800 = 76800
El reembolso mensual es fijo;
Por lo tanto,
76800/30 = 2560
There are 65 people in a restaurant. The restaurant has a maximum capacity of 84 people. Write an inequality that represents the number x of additional people who can enter the restaurant
Answer:
x+65≤84
Step-by-step explanation:
Inequality that represents the number 'x' of additional people who can enter the restaurant is -
x + 65 ≤ 84
What is inequality?
Inequality refers to a relationship that makes a non-equal comparison between two numbers or other mathematical expressions.
Given is a restaurant which has 65 people in it. The restaurant has a maximum capacity of 84 people.
Assume that 'x' more people can enter inside the restaurant. Then -
the inequality can be written as follows -
x + 65 ≤ 84
65 people were already inside. 'x' more people can enter it such that the total number of people inside is either less or greater than 84.
Therefore, inequality that represents the number 'x' of additional people who can enter the restaurant is -
x + 65 ≤ 84
To solve more questions on inequality, visit the link below-
https://brainly.com/question/21857626
#SPJ5
Select the TWO equations that are equivalent to 2 (2 + 3) – 2 = 16.
А.
(1 + 3) - 2 = 8
B
+3=9
С
20 = 12
D
20 = 15
Answer:15
Step-by-step explanation:3/4
which graph represents the compound inequality -3<n<1
Answer:
D.
Step-by-step explanation:
n is between -3 and 1, with 3 and 1 not included.
You need open dots on -3 and 1, and shading in between.
Answer: D.
A number x plus 36 is no more than 40. Write this sentence as an inequality
Answer:
When we say 'as many as' or 'no more than', we mean 'less than or equal to' which means that a could be less than b or equal to b. But, when we say 'at least', we mean 'greater than or equal to'. Here a could be greater than b or equal to b.
The graph shows the distance covered by a runner after a given number of hours.
The runner travels
miles in 2 hours
Answer:
1. The runner travels 8 miles in 2 hours
2. The runner's speed is 4 miles per hour
Step-by-step explanation:
EDG 2020
The runner travels 10 miles in 2 hours.
From the graph determine how much distance travel by runner in 2 hours.
The graph is a demonstration of curves which gives the relationship between x and y axis.
Question seems to be incomplete. Here is the assumed data, from graph.
x (time) in hours = 1 2 3 4 5
y (distance) in miles = 5 10 15 20 25
Here, from data runner travels 10 miles in 2 hours.
Thus, the runner travels 10 miles in 2 hours.
Learn more about graphs here:
brainly.com/question/16608196
#SPJ2
Which is the set of whole numbers between ten and fifteen?
Answer:
The whole numbers = positive integers + 0
{11,12,13,14}
The national debt is about $26.7 Trillion as of today. Let's say that it grows in the future at about 7%, as it has from 2010 until today. Projecting forward 10 years, lets say that the population is about 350 million people at that time. In 10 years from now, approximately how much will the average citizen owe the Federal government, just so that the government can pay all its debts?
Answer:
Approximately, each citizen will owe $81,626 just so that the government can pay all its debts in the coming 10 years
Step-by-step explanation:
What we have here is that the debt grows at a rate of 10% per decade
So in the next 10 years, the worth of the debt will be;
26.7 trillion + 7% of 26.7 trillion
= 26.7 trillion + 1.869 trillion
So the total debt will now be;
= 28.569 trillion
So the amount each of the 350 million citizens owe the government will be;
28.569 trillion/ 350 million
= 81,625.71428571429
Approximately each citizen will owe $81,626
There are 40 girls and 32 boys who want to participate in 7th grade intramurals. If each team must have the same number of girls and the same number of boys, what is the greatest number of teams that can participate in intramurals? How many girls and boys will be on each team?
Answer:
4 boy 5 girls 8 teams
Step-by-step explanation
Answer:
The greatest number of teams is 32. If each team has one boy and one girl, because there are 32 boys, there will be 32 teams.
Step-by-step explanation:
I hope this helps :)
Number expressed as a value between 1 and 10 multiplied by a power of 10.
A. scientific notation
B. scientific theory
C. scientific model
D. scientific methods
E. scientific law
Answer:
A. scientific notationStep-by-step explanation:
Number expressed as a value between 1 and 10 multiplied by a power of 10
It is called
A. scientific notationGeneral form is: a×10^b, where a- is a number between 1 and 9, b- is an integer
GS
56 A motorcycle starts out from a stop sign and
accelerates at a constant rate of 20 m/s. How long
will it take the motorcycle to go 300 meters?
I got 2.14 GPA but just want my answer checked? It sounds dumb but this this grade would mean a lot to me. Instructions are on there
Can someone help please
Answer:
Step-by-step explanation:
I think d but mabye not
I NEED HELP WITH THIS I DON'T UNDERSTAND IT
Answer:
1/3
Step-by-step explanation:
plz mark brainlest
Answer:
-2/3
Step-by-step explanation:
I find it easier to make these proper fractions into improper fractions.
To make proper to improper, you multiply the denominator with the whole number and then add the product with the numerator.
1 2/3 would become 5/3
2 1/3 would become 7/3
5/3 - 7/3 = -2/3
Write an addition expression that equals 8. Use at least 1 zero pair (i think I’m just slow lol)
Answer:
8 use at least one zero That what they said in my math class I hope the answer right
A line passes through the point (–2, 7) and has a slope of –5.
What is the value of a if the point (a, 2) is also on the line?
A: –7
B: –1
C: 1
D: 7
Answer:
a
Step-by-step explanation:
A ticket broker bought two dozen concert tickets for $455.76. To resell the tickets, he will include a service charge of $3.80 for each ticket. What is the resale price of each ticket?
A. $18.99
B. $41.78
C. $22.79
D. $37.98
Find the solution to the syster
y = 2x = 5
y = X - 2
Answer:
Both of these equations are in slope-intercept form. The slope-intercept form of a linear equation is: y=mx+b
Where m is the y-intercept value.
y=-2x+5
y=-2x+20
The slope of the two equations are: m1=−2 and m2=−2
Step-by-step explanation:
Because the have the same slope it means the lines represented by these two equations are either parallel or are the same line.
The y-intercepts for the two lines are:b1 = 5 and b1=20
Use the graph below to find L' after L(0, 0) was reflected over the line y = -4
Answer:
L' would be (0 -4) after L was reelected over the line x = 4.
What is (18x-44 )+(8x-10) =180?
Find the mean of:
1.8, 1.7, 1.3, 1.1, 1.2, 1.6, 1.8
Answer:
1.5 is your answer
Answer:
1.5
Step-by-step explanation:
PLZ HELP! ILL MARK BRAINLEIST!!! DONT USE FOR POINTS PLZ
Answer: x = 4
Step-by-step explanation:
I'm not sure about #19 sorry :,(
#20
2x+5=6x-11 (Setting them equal to each other because it's a square)
-2x -2x
5 = 4x-11
+11 +11
16 = 4x
/4 /4
4 = x
Adrian is a songwriter who collects royalties on his songs whenever they are played in a commercial or movie. Adrian will earn $40 every time one of his songs is played in a commercial and he will earn $130 every time one of his songs is played in a movie. Adrian earned a total of $1010 in royalties on 14 commercials and movies. How many commercials and movies did Adrian's songs play on?
Answer:
Adrian's songs played on 9 commercials and 5 movies.
Step-by-step explanation:
Let x denotes number of commercials and y denotes number of movies.
Total number of commercials and movies = 14
So,
[tex]x+y=14\\x=14-y\,\,\,\,...(i)[/tex]
Adrian will earn $40 every time one of his songs is played in a commercial and he will earn $130 every time one of his songs is played in a movie
Total amount earned = $1010
[tex]40x+130y=1010\,\,\,...(ii)[/tex]
Put [tex]x=14-y[/tex] in (ii)
[tex]40(14-y)+130y=1010\\560-40y+130y=1010\\90y=1010-560\\90y=450\\y=\frac{450}{90}=5[/tex]
Put [tex]y=5[/tex] in [tex]x=14-y[/tex]
[tex]x=14-5=9[/tex]
Therefore, Adrian's songs played on 9 commercials and 5 movies.