The solution of the inequality 5(x + 1) - 10 ≥ 2x + 3(2x + 2) is x ≤ - 16/3.
What are inequalities and their types?Inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.
The symbol a < b indicates that a is smaller than b.
When a > b is used, it indicates that a is bigger than b.
a is less than or equal to b when a notation like a ≤ b.
a is bigger or equal value of an is indicated by the notation a ≥ b.
Given, Inequality is 5(x + 1) - 10 ≥ 2x + 3(2x + 2).
5x + 5 - 10 ≥ 2x + 6x + 6.
5x + 5 - 10 ≥ 8x + 6.
5x - 8x ≥ 10 + 6.
- 3x ≥ 16.
3x ≤ - 16.
x ≤ - 16/3.
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a) What fraction is equal to 50% of 1/3?
b) What fraction is equal to 75% of 1/2?
you dont need to show working out
What’s the value of a?
Answer:
a = 69
Step-by-step explanation:
The linear pair equals 180 degrees.
a + 90 + 21 = 180
a + 111 = 180
a = 69
nice!
Answer:
A= 69 degrees
Step-by-step explanation:
if all those angles equal a total of 180 degrees then all you need to do is add the angles your given which in this case is 21 and a 90 degree angle which would equal 111 degrees, then subtract 111 from 180 and that would be the answer to the missing angle, which is 69 degrees.
21 + 90 = 111
180- 111 = 69
SOMEONE PLEASE HELP ME BEFORE I FAIL
Answer:
4/40
Step-by-step explanation:
you can reduce this to 1/10
multiplying 4 by both 1 and 10 will give you the fraction 4/40 both can be divided by 4 and that's how it can reduce to the 1st fraction (1/10)
Using the function w=7d+13 which statement is true.
A. the independent variable is w
B. The independent variable is d
C. the dependent variable is
D. the independent variable is 7
Answer:
B: The independent variable is d.
Step-by-step explanation:
I took the test on K12
Sara Poured 3/4 of the juice from a 2-liter bottle while serving guests at a party. How much juice, in liters, is still left in the bottle?
Answer:
1 1/4 of a liter
Step-by-step explanation:
help please, I'll give brainliest :< to whoever can answer and give the solutions
Answer:
3. Fifteen weeks
Step-by-step explanation:
well if you subtract the 4000 from the 10000 you get 6000 and then divide 6000 by the 400 and you get 15
10 points!!
Find the inverse of f(x) = √x-1
Answer:
Step-by-step explanation:
For a function to have an inverse, it has to pass the horizontal and vertical line test, yes both of them. This function does, so we can continue. The first step for finding an inverse is replacing f(x) with y. Then switch the places of x and y.
[tex]x=\sqrt{y-1}[/tex]
Now the next step is to solve for this new y value, which is equivalent to f^-1(x). Square both sides to get rid of the radical.
[tex]x^2=y-1[/tex]
Add 1 to both sides and that is your inverse function
[tex]y=x^2+1[/tex]
if line f passes through points (9 , 9) and (6 , 1) . Line g is perpendicular to line f. What is the slope of line g?
A store bought 250 toys at a cost of $24 each. The store sold all the toys at a percent markup of 60 percent. Find the total selling price
3. Bob the plumber charges $15 per hour plus a service fee of $40 for coming out to your
house. How much would plumber Bob charge for working 5 hours?
A) $125
B) $100
C) $75
D) $115
Answer:
D) $115
Step-by-step explanation:
15x + 40 = y
15 (5) + 40 = 115
15 x 5 = 75
75 + 40 = 115
Answer:
D is the answer
Step-by-step explanation:
15x5=75
75+40=115
Find the distance between 2 and -2
A) -6
B) -4
C) 0
D) 4
Answer:
d
Step-by-step explanation:
Given that a = 7.4 cm and b = 2.5
cm, work out the perimeter of the
triangle.
Give your answer rounded to 1 DP.
Answer:
3
Step-by-step explanation:
its 8 because if you round it by 1 then you get 3
which expression is equivalent to -4(3d-2)-7
Arnie is mixing red and yellow paints to make two different shades of orange. To make 1 cup of dark orange paint, he needs 7 ounces of red paint and 1 ounce of yellow paint. To make 2 cups of light orange paint, he needs 13 ounces of yellow paint and 3 ounces of red paint. Answer parts a and b.
Answer:
Arnie has enough red paint
Step-by-step explanation:
step 1
Find out the number of ounces of red paint needed to make 3 cups of dark orange paint
Let
x -----> number of ounces of red paint
y -----> number of ounces of yellow paint
z ----> cups of dark orange
we know that
\frac{x}{z}=\frac{7}{1}\ \frac{ounces\ red\ paint}{cups\ dark\ orange}
z
x
=
1
7
cups dark orange
ounces red paint
so
For z=3 cups
substitute and solve for x
\frac{x}{3}=\frac{7}{1}
3
x
=
1
7
x=21\ ounces\ of\ red\ paintx=21 ounces of red paint
step 2
Find out the number of ounces of red paint needed to make 3 cups of light orange paint
Let
x -----> number of ounces of red paint
y -----> number of ounces of yellow paint
z ----> cups of light orange
we know that
\frac{x}{z}=\frac{3}{2}\ \frac{ounces\ red\ paint}{cups\ light\ orange}
z
x
=
2
3
cups light orange
ounces red paint
so
For z=3 cups
substitute and solve for x
\frac{x}{3}=\frac{3}{2}
3
x
=
2
3
x=4.5\ ounces\ of\ red\ paintx=4.5 ounces of red paint
step 3
Adds the ounces of red paint
21+4.5=25.5\ ounces\ of\ red\ paint21+4.5=25.5 ounces of red paint
25.5\ ounces < 32\ ounces25.5 ounces<32 ounces
therefore
Arnie has enough red paint
I NEED HELP PLEASE!!!
Answer:
hardhard
Step-by-step explanation:
Bob bought a thing for $350 and sold it for $450. What was his percentage gain?
Plz need answers ASAP!!
Answer:
The answer 128.57%
Step-by-step explanation:
The explanation is
Answer:
28.57%
Step-by-step explanation:
Karma baked 48 cookies yesterday. Every hour, she bakes another batch of 12 cookies. What is the rate of change for the scenario described? (4 points)
a
4
b
12
c
60
d
48
Answer:
b
Step-by-step explanation:
Every 4 hours she makes 48 cookies, and we can make a rate of 4:48 equal to 1:12.
Hope this helps
Answer:
B if i am correct
Step-by-step explanation:
srry i cant really explain it, it was complicated for me to find what i hope is the right answer
Combine the radicals
Will mark brainliest
Answer:
b then a
Step-by-step explanation:
Can someone help me with #3 on c d and e
Step-by-step explanation:
1.2 x 5 = 6.0
0.9 x 1.1 = .99
1.5 x 2 = 3.0
Alfred has a lawn service. He earns $40 for every 3 lawns he mows. Which of the following
represents the rate of change his income with respect to the number of lawns he mows?
$50
4 lawns
$53.33
4 laws
4 laws
$50
4 laws
$53.33
Answer: I don’t think I’m right but 53.33
Step-by-step explanation:
For the following statements 11 - 16 write TRUE or FALSE.
11. Through any two points there is exactly two lines.
12. A line contains of at LEAST two points.
13. A plane contains at least three non-collinear points.
14. Two lines intersect at a point.
15. Two planes intersect at a point.
16. A line and a plane intersect at a line.
Answer:11 is false. Through any two points there is exactly one line. 12 is true. 13 is true. 14 is true. 15 is false. Two planes intersect at a line. 16 is false. A line and a plane would intersect at a point
Step-by-step explanation:
Need help on this please help
Answer:
6028.8
Step-by-step explanation:
Answer:
v = 6028.8m³
Step-by-step explanation:
Cylinder volume formula:
πr²h
3.14*8²*30=6028.8m³
HELP I NEED HELP ASAP
I need help with geometry
Answer:
it's option B)...
Step-by-step explanation:
de=8 df=10 a=d
Answer:
It will be D
Step-by-step explanation:
Hope this Helped
Why thank you for helping me and I will mark brainliest if you’re right :)
Answer:
Choice #1) 4.7 cm
Step-by-step explanation:
circumference of full circle = 2(r)(3.14)
a full circle would be = 2(3)(3.14) = 18.84 cm
It is 1/4 circle so 18.84/4=4.7 cm
Answer:
10.7
Step-by-step explanation:
1. I first grabbed a ruler to measure the other straight side of the figure.
2. Both of the straight sides were 3 cm so I knew that the answer had to be greater than 6 cm.
3. I then estimated that the other side was longer than the 3 cm.
4. I then had to my logic to figure out the answer and I very quickly realized that 4.7 cm would not make since because that is less than 6 cm. I know 7.7 cm would not make since because I knew the curved side was longer than 3 cm not shorter. 18.8 cm did not make since because that answer has WAY to much cm. Using the process of elimination, 10.7 cm was the only answer that made since.
Solve for x
A. 10
B. -8
C. 6
D. 3
Answer:
c (6)
Step-by-step explanation:
by the corresponding angles postulate, the angle above 20x-5 will be 65°.
20x - 5 + 65 = 180 they are supplementary angles (angles that add up to 180°)
20x + 60 = 180
20x = 120
x = 6
Please help me I will give brainliest
Answer:
60 milligrams
Step-by-step explanation:
just cross multiply! percentages are just fractions of 100. so you can say that [tex]\frac{45}{x} =\frac{75}{100}[/tex]
multiple 75 by x and 45 by 100 and you get
4500=75x
divide both sides by 75 and you get 60
I need help on this problem. Does anyone know how to complete it? Please and thank you :)
Please please help pleaseeeeee
also .. it wouldnt let me crop the photo ..
