Answer:
Option C : add 7 to both sides of the equation is the correct answer.
Step-by-step explanation:
Given that:
Sarah is solving the following equation.
r - 7 = 234
Sarah wants to use inverse operations.
In inverse operation she will eliminate 7 from left side of the equation by adding 7 to the both sides of the equation.
Hence,
Option C : add 7 to both sides of the equation is the correct answer.
please help thank you
Answer:
it might go like A= 12 B= 0 C = -6
Fala wants to purchase a video game system that costs
$309. She earns $12 for each hour that she works at her
father's hardware store. How many hours will Fala need to
work to earn enough money to purchase the video game
system?
Answer:
26 hours or 25 hours and 45 min
Step-by-step explanation:
309/12= 25.75
Please if ur good at pre calc stop to help with the first question please
Answer:
Step-by-step explanation:
The first thing you ought to do is find out what you are trying to get. Desmos is an ideal program to do that if you don't have a graphing calculator. Just search for Desmos. It is pretty obvious once you get there. I've enclosed the graph to show you what it looks like.
Notice what happens around 5. The graph splits because effectively, you are dividing by 0 when you put 5 into the denominator. The question arises why doesn't the same thing happen at 0. It should: There is a discontinuity but it is very tiny. So the domain numbers that you should graph are
-1 0™ 1 2 3 4 4.5 4.8 5.3 5.4 6 7
™I wouldn't make 0 a part of this domain. But you can indicate with a dot where the graph goes.
I haven't filled in the range numbers. That's your job. All you have to do is fill in the table with points. Or you can put them on the graph that I have enclosed just to see where they points belong.
A graph is not to convey accuracy. It is to show the shape of function in question.
I GIVE BRAINNLILSTTTT
Answer: Its an enlargement
Enlargement - Getting bigger
Reduction - getting smaller
find the pattern 1,3,1,9,27,1
Answer:
add 2 subtract 2 add 8 multiply by 3 divide by 27
help please for my assesment
Answer:
[tex]Ratio = 2 : 15[/tex]
Step-by-step explanation:
Given
[tex]Ratio = 8 : 60[/tex]
Required
Write in the simplest form
[tex]Ratio = 8 : 60[/tex]
Divide by 2
[tex]Ratio = 8/2 : 60/2[/tex]
[tex]Ratio = 4 : 30[/tex]
Divide by 2
[tex]Ratio = 4/2 : 30/2[/tex]
[tex]Ratio = 2 : 15[/tex]
The expression cannot be further simplified.
Type the correct answer in the box. The area of the figure is _______ square units. 2 units 8 units. 6 units
Answer:
80 square units
Step-by-step explanation:
The area of the figure can be found by decomposing into parts whose area is easy to find, then adding the areas of those parts.
We choose to consider the figure to be composed of two congruent trapezoids and a rectangle.
__
Trapezoid areaEach trapezoid has bases of 6 units and 10 units, and a height of 2 units. Its area will be ...
A = 1/2(b1 +b2)h
A = 1/2(6 +10)(2) = 16 . . . . square units
__
Rectangle areaThe central rectangle has dimensions of 6 units by 8 units. Its area will be ...
A = LW
A = (8)(6) = 48 . . . . square unit
__
Total areaThe total area is the sum of the areas of the two trapezoids and the rectangle:
total area = 2(16) +48 = 80 . . . . square units
If (4,y) is a solution to x-2y = 6, what is the value of y?
Answer:
(4, -1)
Step-by-step explanation:
(4, y) is a solution to x - 2y = 6.
Find the value of y:
[tex]4-2y=6\\\\4-4-2y=6-4\\\\-2y=2\\\\\frac{-2y=2}{-2}\\\\\boxed{y=-1}[/tex]
The value of y is '-1'.
(4, -1) is a solution to the equation.
Hope this helps.
judy works 8 hours a day. she works 6 days a week. how many hours per week
Answer:
48 hours
Step-by-step explanation:
8 x 6 = 48
Answer:
she works 48 per week
Step-by-step explanation:
8*6=48
Which equation has infinitely many solutions?
Answer:
B. and C. both equations has infinitely many solutions.
Step-by-step explanation:
B. 3(4y-5)=12y-15 → 12y-15=12y-15C. 4(5y+2)=20y-6 → 20y+8=20y-6In both the equations, value of y cannot be determined, so they have infinitely many solutions.
Please help me with math!
Answer:
if
c=(1,8)
and
y=(-3x + 1)
then
y=(-3 x 1 + 1)
=( -3 +1)
= -2
write each ratio in simplest form
50 to 4 =
Answer:
50:4
Step-by-step explanation:
Barbara ordered a set of beads. Of the beads she received, 12 were red and 28 were a different color. What percentage of the beads were red?
Answer:
the answer is 3.36 please mark brainliest
Step-by-step explanation:
Which model shows a ratio of 1 white to 2 blue?
each system of equations by SUBSTI
x + 3y = 9
4x – 2y = -6
Answer:
[tex]\huge\boxed{x=0,\ y=3\to(0;\ 3)}[/tex]
Step-by-step explanation:
[tex]\left\{\begin{array}{ccc}x+3y=9&\text{subtract }3y\ \text{from both sides}\\4x-2y=-6\end{array}\right\\\\\left\{\begin{array}{ccc}x=9-3y&(1)\\4x-2y=-6&(2)\end{array}\right[/tex]
Substitute (1) to (2):
[tex]4(9-3y)-2y=-6\qquad|\text{use the distributive property}\\\\(4)(9)+(4)(-3y)-2y=-6\\\\36-12y-2y=-6\qquad|\text{subtract 36 from both sides}\\\\-14y=-42\qquad|\text{divide both sides by (-14)}\\\\y=3[/tex]
Put it to (1):
[tex]x=9-3(3)\\\\x=9-9\\\\x=0[/tex]
3. Expresa las siguientes multiplicaciones como Potencia:
a. 3x3x3x3x3x3=
b. 4x4x4x4=
C. 10 x 10 x 10 x 10 x 10 x 10 x 10=
d. 1x1x1x1x1x1x1x1x1x1x1x1 =
Answer:
Hmmm o yo tanbien hablo espanol hola! :D medas puntos gratis porfavor?
Step-by-step explanation:
porfaaaaa <3
Solve 3 3/4 divided by 2/5
a.9 1/4
b.3 5/9
c.9 3/8
d.3 6/20
Step-by-step explanation:
3 [tex]\frac{3}{4}[/tex] ÷ [tex]\frac{2}{5}[/tex] Original problem
When dividing fractions, you want to turn the mixed numbers into improper fractions so....
[tex]\frac{15}{4}[/tex] ÷ [tex]\frac{2}{5}[/tex]
Now you want to flip the second fraction ( so [tex]\frac{2}{5}[/tex] becomes [tex]\frac{5}{2}[/tex] ) and then you want to turn the division sign into a multiplication sign
[tex]\frac{15}{4}[/tex] × [tex]\frac{5}{2}[/tex]
Now you multiply the numerators and multiply the denominators
[tex]\frac{15*5}{2*4}[/tex] = [tex]\frac{75}{8}[/tex]
Turn the improper fraction to a mixed number
75 divided by 8 is 9 with a remainder of 3 so your answer would be c. 9[tex]\frac{3}{8}[/tex]
The answer is c
I hope this helps!!!
A proportion is an equation showing the equivalence of two ratios or rates true or false
Condense each Logarithm
log 3 – log 8
9 9/10 + 9 1/8 - 12.85 =?
Evaluate the expression as a fraction.
6.175=247/40 simplified is 6 7/40
What is the domain of f(x) = 5^x - 7?
A.) {x| x > -7}
B.) {x| x < -7}
C.) {x| x > 0}
D.) {x| x is a real number}
Answer:
D
Step-by-step explanation:
I think the intervals can pretty much be infinite.
20 + (-6 × 4) - 2
. pemdas
Answer:
-6
Step-by-step explanation:
Answer:
Pemdas:
PerenthesesExponentsMultiplication Division Addition SubtractionStep-by-step explanation:
20 + ( - 6 × 4 ) - 2
20 + ( - 24 ) - 2
= - 6How many and what type of solutions does the equation have?
a2−2a+5=0
two rational solutions
one rational soultion
two nonreal solutions
two irrational solutions
Answer:
The equation has one rational solution.
Step-by-step explanation:
You can automatically exclude nonreal and irrational solutions because the answer to this equation is a rational number. Once the equation is solved, you will find that there is only one answer.
b) Find the value of 3^-3 x 10
Answer:
-270
Step-by-step explanation:
= 3^-3 × 10
= -27× 10
= -270
help me please i wish i can get somehelp
Answer:
29. [tex]\frac{1}{3}[/tex]
30. a) 32
b) Yes, the ratio will change 1 : 2.
Step-by-step explanation:
Question 29.
Given that:
Number of gold medals won by France = 11
Number of silver medals won by France = 9
Number of bronze medals won by France = 13
To find:
The ratio of gold medals won to the total number of medals won by France.
Solution:
First of all, we need to find the total number of medals won by France.
Total number of medals won = 11 + 9 + 13 = 33
The required ratio can be found as:
[tex]\dfrac{\text{Number of gold medals won}}{\text{Total number of medals won}}\\\Rightarrow \dfrac{11}{33}\\\Rightarrow \bold{\dfrac{1}{3}}[/tex]
Question 30:
Number of girls = 20
Ratio of boys to Ratio of girls = 3 : 5
a. Total number of students in the class?
First of all, we need to find the number of boys in the class then we will add the value to the number of girls to get the answer.
Let the number of boys = [tex]x[/tex]
As per the ratio, we can write:
[tex]\dfrac{3}{5 } = \dfrac{x}{20}\\\Rightarrow x = 12[/tex]
Total number of students = 20 + 12 = 32
b. Four number of boys and four girls are moved to other class.
Number of boys left = 12 - 4 = 8
Number of girls left = 20 - 4 = 16
New ratio = 8 : 16 = 1 : 2
Therefore, the ratio got changed to 1 : 2.
Does this system have NO SOLUTION or INFINITE SOLUTIONS? y = 2/3 x + 2 and -2x + 3y = 6
Answer:
yes
Step-by-step explanation:
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3(1 – 2x) > 3 – 6x
For x
Answer:
the statement is false for any value of x
Step-by-step explanation:
Answer:
[tex] \boxed{ x < 0}[/tex]
Step-by-step explanation:
[tex]if \to : \\ 3(1 – 2x) > 3 – 6x \\ then \to : \\ 3(1 – 2x) > 3 – 6x = \\ 3 - 6x > 3 - 6x = \\ - 3 + 3 > - 6x + 6x \\ 0 > x( -6 + 6) \\ 0 > x(0) \\ x < \frac{0}{0} \\ \boxed{ x < 0}[/tex]
Solve 1/2n +3 < 5. Which graph shows the solutions
Answer:
last one
hope it helps..
In ARST, mZR = (6x + 10)°, mZS = (2x + 5)°, and
m_T = (3x – 11)'. Find m R.
Answer:
Submit Answer
Answer:
∠R = 106°
Step-by-step explanation:
Given that,
In ΔRST, ∠R = (6x + 10)°, ∠S = (2x + 5)°, and ∠T = (3x – 11)°.
We need to find ∠R.
We know that, the sum of angles of a triangle is equal to 180°.
ATQ,
(6x + 10) + (2x + 5) + (3x – 11) = 180
Taking like terms,
6x+2x+3x = 180-10-5+11
11x = 176
x = 16
So,
∠R = (6x + 10) = 6(16) + 10
= 106°
Hence, ∠R = 106°
class of 50 students dressed up 38% have white shirts. How many are wearing white shirts?
Step-by-step explanation:
☥ [tex] \underline{ \underline{ \text{Given} }}:[/tex]
Total number of students = 50Percentage of students who are wearing white shirts = 38 %☥ [tex] \underline{ \underline {\sf{To \: find} }}: [/tex]
Total number of students who are wearing white shirts☥ [tex] \underline{ \underline{ \sf{Solution} }} : [/tex]
⟹ [tex]\sf{38\% \: of \: 50} = \frac{38}{100} \times 50 = \boxed{ \sf{19}}[/tex]
[tex] \red{ \boxed{ \boxed{ \tt{⟿ \: Our \: final \: answer : 19}}}}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ツ
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