Answer:
C. 3x + 2(2x + 3) = 9
Step-by-step explanation:
We are given the following relation:
y = 2x + 3
And we want to substitute into:
3x + 2y = 9.
So
[tex]3x + 2(2x + 3) = 9[/tex]
Which is given by option C.
g+5>12 solution please i don’t know how to do this
Answer: g > 7
Graph has an open circle at 7 on the number line, shading to the right
================================================
Explanation:
Think of it like saying "I have a number, and I add on 5. The result is something larger than 12". You can guess and check your way to the answer, but the quickest way is to subtract 5 from both sides.
We subtract to undo the addition happening to the 'g'.
g+5 > 12
g+5-5 > 12-5
g > 7
So the number is larger than 7. For instance, if g = 8, then,
g+5 > 12
8+5 > 12
13 > 12
This is a true statement.
-------------------------
If you need to graph the solution, then you'll have an open circle at 7 on the number line. The open circle says to the reader "don't include this value as part of the solution set". Shade to the right of the open circle to describe all values larger than 7.
In summary, the graph has an open circle at 7 and shading to the right.
Alex scored 98,72, and 87 on his first three math test. What must he score on the next test to have an average of at least 86 (P.S I need quickly no need to rush yourself just quickly)
Answer:
[tex]\huge\boxed{\text{At least an } 87\%}[/tex]
Step-by-step explanation:
In order to find what score Alex must earn to have an average of 86 on all his tests, we need to first note what the formula to find the average of a data set is.
[tex]\displaystyle \frac{x_1+x_2+...x_n}{n}[/tex]
What the formula means is that we have to add up all the values then divide by the total number of values.
Let's represent our unknown number as [tex]x[/tex].
[tex]\displaystyle \frac{98+72+87+x}{4} \geq 86[/tex] (since we want AT LEAST an 86).
Let's solve this inequality for x.
[tex]\frac{98+72+87+x}{4} \cdot 4 \geq 86 \cdot 4[/tex] [tex]98+72+87+x \geq 344[/tex] [tex]257 + x \geq 344[/tex] [tex]257 + x - 257 \geq 344 - 257[/tex] [tex]x \geq 87[/tex]So, Alex must score at least an 87% on his next quiz to have an average of 86%.
Hope this helped!
What’s the process for finding c in this equation?
Answer:
x = 7
Step-by-step explanation:
Given that ∆BCD ~ ∆BFG, therefore the ratio of their corresponding side lengths will be equal.
Thus:
[tex] \frac{BC}{BF} = \frac{BD}{BG} [/tex]
Substitute
[tex] \frac{17x + 13}{36} = \frac{154}{42} [/tex]
Cross multiply
[tex] 42(17x + 13) = 154(36) [/tex]
[tex] 714x + 546 = 5,544 [/tex]
[tex] 714x = 5,544 - 546 [/tex] (subtraction property of equality)
[tex] 714x = 4,998 [/tex]
Divide both sides by 714
x = 7
A manufacturer tests a certain number of headsets that are produced each day. There is a 2% chance of finding a defective headset. If 280 units of that model are tested,the manufacturer would expect to find approximately how many head sets without any defects
Answer:
Correct headsets= 274.4 = 274
Step-by-step explanation:
Giving the following information:
Number of units= 280
There is a 2% chance of finding a defective headset.
To calculate the number of headsets without any defect, we need to use the following formula:
Correct headsets= 280*0.98
Correct headsets= 274.4 = 274
Please help this question is confusing
12, 15, 18
Step-by-step explanation:
The sign means equal to or greater than.
tom went to a shop where there was a 20% off sale taking place
The shirt he wanted was originally 20$
How much money does he save in the sale?
2. Are there any numbers that have an absolute
value of -5? Justify your answer.
Answer:
No
Step-by-step explanation:
Absolute values are always positive
If helpful pls give 5 star, brainliest, and thanks!
Work out the perimeter of the shaded shape.
7m
6m
16m
Answer:
no
Step-by-step explanation:
your beatiful just the way you are
dont change anything about yourself
LOROWANIE Solve the system using elimination. 3x + 10y = -4 2x + 2y = 2 ([?], [ ]
Answer:
x+y=10
x+y=10-3
x+y=7
xy²=7
answer 7
hope that helps
Step-by-step explanation:
Brainliest?
6 +5x = 46
Solve question with working out
Answer:
x=8 hope this helps!!!!
Step-by-step explanation:
Answer:
x= 8
Step-by-step explanation:
6+5x=46
5x= 46-6
5x=40
x=8
I will give brainiest to whoever answers correctly !!
Please do not steal my points I'm tired of it put a legit answer or leave!! I will give brainiest to whoever answers correctly!!
Answer:
234234234234234234234
Step-by-step explanation:
Midpoint question:):)
Answer: it’s 20
Step-by-step explanation: QR= 6, RS= 6, ST= 8 because 14-6=8
Answer:
The answer is 20
Step-by-step explanation:
If R is in the middle of s and q and it equals 6, then you just have to multiply it by 2. You will get 12 for QS. Now to find the whole thing, subtract 6 from 14 to get 8 and add 8 to 12 to get 20.
20 is your answer.
Karen makes $10 per hour babysitting and $24 per hour giving music lessons. One weekend, she worked a total of 15 hours and made $276
How many hours did she spend on each job?
Answer:
16 hours i think or 8 rip
Step-by-step explanation:
10 + 24 divided by 276
What value of x makes this equation true?
1.2x - 10 = 0.2x + 14
A 4
B 14
C 24
D 6
Answer: C
Step-by-step explanation:
1.2x-10=0.2x+14
subtract 0.2x
1.0x-10=14
add 10
x=24
the missing exponent 1,728 =12 (?)
Answer:
x=144
Step-by-step explanation:
True OR False
The lengths 35, 37, and 12 make a right triangle.
Answer:
im pretty sure false. ......... ....................
pls help!! i need a answer quick :)) thank you 13 pts
....................
Answer:
.........................
Step-by-step explanation:
Please answer this correctly without making mistakes
Answer:
hmm i am not sure sorry XD
Step-by-step explanation:
Answer:
9546 yards
Step-by-step explanation:
Find the input (x)of the function y =25/6x-34 if the output (y) is 16. x=__
Answer:
The input is x = 12.
Step-by-step explanation:
We are given the following function:
[tex]y(x) = \frac{25x}{6} - 34[/tex]
We have to find the input(x) if the output y is 16. So
[tex]16 = \frac{25x}{6} - 34[/tex]
[tex]\frac{25x}{6} = 16 + 34[/tex]
[tex]\frac{25x}{6} = 50[/tex]
[tex]25x = 6*50[/tex]
Simplifying both sides by 25
[tex]x = 6*2 = 12[/tex]
The input is x = 12.
.What is the correct expanded form for the number 84.76?
Answer:
this is the awnser: 80 + 4 + 0.7 + 0.06
Answer:
23,958 =
20,000
+ 3,000
+ 900
+ 50
+ 8
Expanded Factors Form:
23,958 =
2 × 10,000
+ 3 × 1,000
+ 9 × 100
+ 5 × 10
+ 8 × 1
Expanded Exponential Form:
23,958 =
2 × 104
+ 3 × 103
+ 9 × 102
+ 5 × 101
+ 8 × 100
Step-by-step explanation:
If a certain recipe requires 5 tablespoons of flour for every 2 ounces of butter, how many tablespoons of flour are needed if 2 pounds of butter are used? There are 16 ounces of butter in one pound.
Answer:
80 tablespoons of flour for 2 pounds of butter
Step-by-step explanation:
5 tablespoons = 2 ounces.
2=5
4=10
6=15
8=20
10=25
12=30
14=35
16=40
18=45
20=50
22=55
24=60
26=65
28=70
30=75
32=80
A triangle has vertices at (1, 1), (1, 4), and (-3. 4).
What are the coordinates of the orthocenter?
Answer:
D, (1,4)
Step-by-step explanation:
This is the correct answer :)
Which of the following triangles is similar to PQR
Answer:
D
Step-by-step explanation:
The ratio's of the sides of "D" match.
15/18=17.5/21
Plz I will give brainliest
Answer:
20/21
Step-by-step explanation:
Absolute value to distance help asap
Answer:
Its c, none of the above.
Step-by-step explanation:
A person in a boat floating in a small pond throws an anchor overboard. What happens to the level of the pond
Answer: The water level rises
Step-by-step explanation:
Given the quadratic function f(x) = 2x²- 6x + 7
i Find the vertex of f(x).
Answer:
(3/2, 5/2)
Step-by-step explanation:
The x value for the vertex of a parabola in the form y=ax^2+bx+c is -b/2a. The x value is then plugged into the function to find the y value.
Quadrilateral ABCD has the following vertics:A( -3,0) B (7,2) C (1,-4) D (-9,-6) is Quadrilateral A B C D a parallelgram, and why?
Answer:
in my opinion I think it parallelogram because it has four sides which are A,B,C,D
Mini read a book at a constant rate. The graph of her progress is shown. Which statement is true?
A. The slope of the line is different from the unit rate of 2/3 page per minute.
B. The slope of the line is different from the unit rate of 1/2 page per minute
C. The slope of the line is the same as the unit rate of 2/3 page per minute.
D. The slope of the line is the same as the unit rate of 1/2 page per minute
Answer:
C
Step-by-step explanation:
