Answer:
x = 2
Step-by-step explanation:
Cause I know & I took the quiz
plz mark brainliest
Solving by substitution- Day 1
solve the following system of equations y=9x-9 y=9
Answer:
(x, y) = (2, 9)
Step-by-step explanation:
y = 9x - 9
y = 9
Substituting the value of y ( second equation) into the first eqaution, we get:
9 = 9x - 9
18 = 9x
x = 2.
Answer:
(x, y) = (2, 9)
Step-by-step explanation:
y = 9x - 9
y = 9
Substituting the value of y ( second equation) into the first eqaution, we get:
9 = 9x - 9
18 = 9x
x = 2.
help i cannot write proportions
Answer:
example 4:2
Step-by-step explanation:
A proportion shows how many parts of one side equals the other. For every four times i kick a soccer ball, I make it in twice. For every 8 times, I make it in 4.
what is the measure of x?? PLEASE HELP
Answer:
100°
Step-by-step explanation:
180-80=100
x = 10 - y
3x - 2 = y
Using the two equations above, solve for y.
The Options
A. y = 4
B. y = 7
C. y = 13
D. y = 14
Move the number that is not next to the variable to the other side of the equation by using the opposite operation Divide by the number next to the variable 8x -1 = -50
Given:
The equation is
[tex]8x-1=-50[/tex]
To find:
The value of x by separating the variable.
Solution:
We have,
[tex]8x-1=-50[/tex]
Here, -1 is not next to the variable. So, move -1 to the other side of the equation by using the opposite operation. After moving -1 to the right side of the equation it will become +1.
[tex]8x=-50+1[/tex]
[tex]8x=-49[/tex]
Divide both sides by 8.
[tex]x=\dfrac{-49}{8}[/tex]
Therefore, the value of x is [tex]\dfrac{-49}{8}[/tex].
Which of the following expressions could be used to find the sale price of an item that costs d dollars if it is on sale for 30% off?
A. 30d
B. 70d
C. 0.3d
D. 0.7d
Answer:
C
Step-by-step explanation:
This is because 30d would be multiplying whatever the cost by 30, however with 0.3d you are taking 0.3 or 30% off of the whole number.
Which inequality is equivalent to 4x-2y≤8?
A. y≤-2x-4
B. y≥2x-4
C. y≤2x-4
D. y≥-2x-4
please help will mark brainliest to rank you up
What is the value of x (x+35) (3x+1)
Answer:
=3x2+106x+35
Step-by-step explanation:
Identify the parent function.
a. cube root
b. reciprocal
c. square root
d. absolute value
Answer:
The answer is C. Square root
Step-by-step explanation:
The parent function of given graph is a square root function
The correct answer is an option (c)
What is a function?"It defines a relation between input and output values.""In function, for each input there is exactly one output."What is cube root?"The function of the form [tex]f(x)=\sqrt[3]{x}[/tex] "
What is reciprocal function?"This function obtained by finding the inverse of a given function."
What is square root function?"The function of the form [tex]f(x)=\sqrt{x}[/tex] "
What is an absolute value function?"The function of the form f(x) = |x| "
For given question,
We have been given the graph of a function.
We need to identify the parent function for the given the graph.
We can observe that the graph increases slowly.
The range of the function is set of all positive values.
We know that the range of square root function is always positive.
If we draw the graph for following functions
i) cube root function
ii) reciprocal function
iii) square root function
iv) absolute value function
Then the parent function of given graph is a square root function
Therefore, the correct answer is an option (c)
Learn more about the square-root function here:
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help please i need this now!
Answer:
All rectangles are similar
Step-by-step explanation:
Choose the numbers to complete the statement about the expression. 8/10 + 2/6Part A The numerator in the first fraction is closest to Choose... , so the fraction is nearest to Choose... . Part B The numerator in the second fraction is closest to Choose... , so the fraction is nearest to Choose... . Part C The value of the expression can be estimated as Choose... + Choose... = Choose... .
Answer:
10 and 1 A
3 and one-half B
1 + one-half =1 and one-half C
Step-by-step explanation:
The expression {8/10 + 2/6} is equivalent to 17/15.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is the expression as -
8/10 + 2/6
The given expression is -
8/10 + 2/6
(2 x 4)/(2 x 5) + (2 x 1)/(2 x 3)
4/5 + 1/3
(12 + 5)/15
17/15
Therefore, the expression {8/10 + 2/6} is equivalent to 17/15.
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The sphere shown has a radius of 3 yards. What is the approximate volume of the sphere? Use 3.14 to approximate pi.
Answer:
The volume of the sphere is 113.04 yd³
Step-by-step explanation:
PLS HELP
PLSSSSSSSSSSS
Answer:
y=-15
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4. A bag of rice at the warehouse store weighs
15 pounds. Maya needs to buy rice for her
restaurant. Write an equation that can be
used to find the pounds of rice, p, in any
number of bags of rice, r.
I’d like some help with this question.
(Multiple choice)
Answer:
I think D
Step-by-step explanation:
You cant have negative numbers as radius
Hiiii Can someone please help me please
A, B, C, or D
F, G, H, or J
Ill give lots of points because there's two Please help me thank you BRAINLIEST ANSWER btw ❤️
Answer:
B, H
Step-by-step explanation:
The electrician charges 45 dollars per hour and 30 at the beginning. We are multiplying the hours, h, by 45 to get 45h. We add 30 to get C=45h+30
Jerome will always earn 75 dollars, but he also gets 10 percent commission, which is 0.10.
Answer:
B and H are the correct answers
Solve: k = -45 ÷ (-15).
GIVING BRAINLIST!!!
Answer: k - 3
Step-by-step explanation:
i just used the rules for division, and removed the parentheses.
k = 45 / 15
once i got to here, i just did simple division. :)
k = 3
a baker is making bread dough. He uses 4 cups of flour every 3 ounces of water. How many ounces of water will he use if he uses 96 cups of flour
Answer:
72 ounces of water
Step-by-step explanation:
96 divided by 4 = 24
24 x 3 = 72
It doesn't need an explanation!
Answer:
The price of each big peach is: $0.45
Step-by-step explanation:
Given that
Total peaches = 270
The ratio of small to medium to big peaches
2:4:3
We can use this ratio to find the number of peaches in each group
First of all we have to find the sum of ratios
That is
2+4+3 = 9
Now
[tex]Small\ peaches = \frac{2}{9} * 270 = 60\\Medium\ peaches = \frac{4}{9}*270 = 120\\Big\ peaches = \frac{3}{9} *270 = 90[/tex]
It is also given that total cost is $91.50
We will have to find the cost of small and medium peaches and then subtract both from the total cost to find the price of big peaches.
So,
Price of one small peach = $0.25
Total cost = 0.25*60 = 15
Price of one medium peach = $0.30
Total cost = 0.30*120 = 36
[tex]Price\ of\ all\ medium\ peaches = Total\ cost-(Cost\ of\ small\ peaches+ Cost\ of\ medium\ peaches)\\= 91.50 - (15+36) \\=91.50-51\\=40.5[/tex]
To find the cost of one big peach, the cost of big peaches will be divided by total number of peaches
So,
[tex]Cost\ of\ one\ peach = \frac{40.5}{90} = 0.45[/tex]
Hence,
The price of each big peach is: $0.45
0.45 cent
Given that
Total peaches = 270
The ratio of small to medium to big peaches.
2:4:3
We can use this ratio to find the number of peaches in each group
First of all we have to find the sum of ratios
That is
2+4+3 = 9
It is also given that total cost is $91.50
We will have to find the cost of small and medium peaches and then subtract both from the total cost to find the price of big peaches.
So,
Price of one small peach = $0.25
Total cost = 0.25*60 = 15
Price of one medium peach = $0.30
Total cost = 0.30*120 = 36
To find the cost of one big peach, the cost of big peaches will be divided by total number of peaches.
So the price of each big peach is: $0.45
help me with this please it would help allot you will get brainliest
Answer:
1. 3 + 4 = 7 (they gave m already)
2. 9 - 4 = 5 (they gave both m and z)
3. 12 * 1/6 = 12/6 = 2 (they gave r)
4. 4(4) - 2 = 16 - 2 = 14 (they gave m)
5. 60 1/6 - 4 = 60/6 - 4 = 10 - 4 = 6
6. 3 1/6 * 1/6 = 3 * 1/12 = 3/12 = 1/4
All you have to do is substitute the variable with what they gave to u as a value
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Find value of x. Leave in simplest radical form
Answer:
blah blah blah blah
Step-by-step explanation:
karma :)
Answer:
[tex]x = 6[/tex]
Step-by-step explanation:
[tex] \sin(45) = \frac{opposite}{hypotenuse} [/tex]
[tex] \sin(45) = \frac{3 \sqrt{2} }{x} [/tex]
[tex](x) \sin(45) = \frac{3 \sqrt{2} }{x} (x)[/tex]
[tex](x) \sin(45) = 3 \sqrt{2} [/tex]
[tex] \frac{(x) \sin(45) }{ \sin(45) } = \frac{3 \sqrt{2} }{ \sin(45) } [/tex]
[tex]x = \frac{3 \sqrt{2} }{ \sin(45) } [/tex]
[tex]x = 6[/tex]
8,502,000,000,000
in scientific notation
Answer:
are you supposed to do math
Factor 2x2 - 6x + 4 completely.
Answer:
2(x - 1)(x - 2)
Step-by-step explanation:
2x^2 - 6x + 4
= 2(x^2 - 3x + 2)
= 2(x - 1)(x - 2)
Someone please please help me ASAP
Answer:
1. 9x
2. 10m
3. 10x
4. x+10
5. t+8
6. 5+3m
7. 12.4x
8. 2x+8
9. 113n
10. 7x+8y
Step-by-step explanation:
Which graph best represents a function with range -4 ≤ y ≤ 3?
Answer:
circle graph
Step-by-step explanation:
The function with range -4 ≤ y ≤ 3 and domain 0 ≤ x ≤ 3 represents a circle. The graph is shown below.
What is a graph?A graph is a diagram that depicts the relationship between two variables, usually measured along opposite axes in a pair, is used.
The range of the function is given below,
-4 ≤ y ≤ 3.
And the domain of the function is grater than or equal to 0 and less than or equal to 5.
Implies that,
0 ≤ x ≤ 3.
And the value of y varies from -4 to 3, for the values of x.
So the graph of the function can be a circle,
The graph of the function is given below.
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find the value of the expression
18 ÷ y
for y = 3
Answer:
6
Step-by-step explanation:
18 divided by 3 equals 6.
Answer:
6
Step-by-step explanation:
18 ÷ y
18 ÷ 3 ^ Substitute 3 in for y, as y equals 3.
6 ^ Divide.
PLEASER HELP!! 40 POINTS
Here is a {copyright} file to the answer
A group of friends wants to go to the amusement park. They have $60 to spend on parking and admission. Parking is $18, and tickets cost $10.50 per person, including tax. How many people can go to the amusement park?
Answer:
4 people
Step-by-step explanation:
plug 18+10.5x into your calculator, or just make a table labelling x and y.
note that x must not exceed $60 but can be equal to or less than $60. x=4 gives you the exact number of people, which is 4.
The formula for the density of an object is d = , where m is the mass and
volume. Solve the formula for m in terms of d and V.
(Answer for M)
Answer:
m = dV
Step-by-step explanation: