Answers
Answer:
x = 30
Step-by-step explanation:
They are vertical angles.
Equation: 2x - 15 = 45
2x = 60
x = 30
2x-15=45
2x=60
x=30
Related Questions
Arul performed an experiment to determine which crank powered radio works best. He cranked 15 randomly selected radies of each brand 30 times at the same speed and measured how long the radies played in minutes before running out of power the results of the experiment are displayed in the box plots below
Answers
Answer:
50%
Step-by-step explanation:
Help with the this question pleaseeee
Answers
Answer:
32x - 8
Step-by-step explanation:
A = LW
A = (8x - 2)(4)
A = 32x - 8
Have a nice day
What is the value of y? Enter your answer as an exact value in the box
Answers
Answer:
y = 3
hope it helps and your day will be full of happiness
What is the value of the discriminant, b2-4ac, for the quadratic equation 0=x^2-4x+5, and what does it mean about the number of real solutions the equation has
Answers
Answer:
-4, no real solutions
Step-by-step explanation:
b^2 is 16 since b is -4
4ac = 4*1*5 = 20
16 - 20 is -4
no real solutions since you cant get the squareroot out of a negative number (at least not real numbers)
Answer:B
Step-by-step explanation: The discriminant is −4, so the equation has no real solutions.
Got it from EDG Its right trust
What fraction is equivalent to 3/12?
A.12/48
B.1/4
C.18/60
D.24/96
Answers
help me pleaseeeeeeee
Answers
Israel planted 4 tomato seeds in his garden. Then he planted flower seeds in each of his three neighbor's gardens. Which expression represents the number of seefs isrsel planted
Answers
Answer:
4 + 3n
Step-by-step explanation:
Number of seed planed in his garden = 4
Let the Number of seed planted in each neighbor's garden = n
Number of neighbors he has = 3
The total number of seeds planted can be represented by the equation :
Number of seeds planted in his garden + (number of neighbors * number of seeds planted in each neighbors garden)
4 + 3n
Need help. I've been stuck on this question for a long time.
Answers
Answer:
x = 24.75
Step-by-step explanation:
28/8 = 2x+3/15
420 = 16x +24
396 = 16x
x = 24.75
2(24.75) +3 =
49.5 + 3 = 52.5
Answer:
x=9
Step-by-step explanation:
let's find the scale factor of the enlargement ∆ABC of ∆ADE
k=28/20=7/5 or 1.4
Now k×|AD|=|AB|
Therefore
k×|DE|=2x+3
7/5×15=2x+3
21=2x+3
21-3=2x
2x=18
x=9
let me know if I was right
A textbook store sold a combined total of 470 biology and history textbooks in a week. The number of history textbooks sold was 62 less than the number of biology textbooks sold. How many textbooks of each type were sold?
Answers
204 history textbooks
A metal cyllinder is hollow in the middle. The cylinder is 40 mm long. The hollow center has a radius of 15 mm. The radius from the hollow center to the edge of the metal cylinder is 34 mm. What is the total volume of metal that makes up the cylinder? Leave your answer in terms of \large \pi and round to the nearest hundredth if necesarry. V = \large \pi mm3
Answers
Answer:
Answer is in picture and explanation below.
Step-by-step explanation:
Continuing from the picture,
Area of Metal base = Area of Bigger Circle - Area of Hollow Circle
=
[tex]1156\pi {mm}^{2} - 225\pi {mm}^{2} \\ = 931\pi {mm}^{2} [/tex]
Volume of Cylinder = Area of Metal base x Height (Length in this case)
=
[tex]931\pi {mm}^{2} \times 40 \\ = 37240\pi {mm}^{3} [/tex]
I need help with this please
Answers
Answer:
Part A
2·a + b ≤ 14
Part B
Please find attached the graph of the inequality created with Microsoft Excel
Part C
1) 4 pounds of apples + 8 pounds of bananas
2) 8 pounds of apples + 6 pounds of bananas
Step-by-step explanation:
Part A
The amount Tony has to buy apples and bananas = $14
The cost of apples per pound = $2
The cost of bananas per pound = $1
Let 'a' and 'b' represent the number of apples and bananas Tony buys respectively, we have;
2·a + b ≤ 14
Part B
In order to plot the inequality, we make one of the variables the subject of the inequality as follows;
b ≤ 14 - 2·a
The above inequality can be plotted with Microsoft Excel and the feasible region shaded as shown in the attached diagram
Part C
Two possible combinations of pounds of apples and bananas that Tony can buy are;
1) 4 pounds of apples and 8 pounds of bananas which gives 2 apples and 8 bananas
2) 8 pounds of apples and 6 pounds of bananas which gives 4 apples and 6 bananas
Find the value of this expression if x = -1 and
y = 9.
x²y
-7
Answers
Answer:
-9/7
Step-by-step explanation:
Simplify and remove like terms.
Tatiana has 894 flowers. She is making bouquets with 8 flowers in each bouquet. When she is done making all of the bouquets, how many flowers will she have left over? *
Answers
Answer:
6
Step-by-step explanation:
The remainder when 8 divides 894 is 6. So, she will be left with 6 flowers.
PLZ HELP !!!! WILL MARK BRAINLIEST, THIS IS DUE IN 15 MINUTIES !!!ANYONE PLEASEPLZ HELP !!!! WILL MARK BRAINLIEST, THIS IS DUE IN 15 MINUTIES !!!ANYONE PLEASEPLZ HELP !!!!
Answers
Answer:
A
Step-by-step explanation:
The correct answer is A!
If a dolls cup holds 2ml, how many cups would it take to fill a doll's 10ml bottle
Answers
Answer:
it would take 5 dolls cups
Sonya randomly surveys 26 seventh graders to gather data about the amount of time spent each week using the Internet. Sonya records the data in the dot plot shown. What is the median of the data set?
What is the mean and the median
Answers
Answer:
You're lucky I have the dot plot, other wise this could not be answered.
Median: 7.5
Mean: 7.5
Yes, they are both 7.5.
Evaluate the expression when m = 9
m^2 - 14
Answers
Step-by-step explanation:
[tex] {9}^{2} - 14 = \\ = 81 - 14 = \\ = 67[/tex]
Answer:
[tex]\Large\boxed{\sf{67}}[/tex]Step-by-step explanation:
You must find the value of m in order to evaluate the expression.
[tex]\sf{m^2-14}[/tex]
For m=9
[tex]\sf{9^2-14}[/tex]
Solve.
Use the order of operations.
PEMDAS
ParenthesesExponentsMultiplyDivideAddSubtractFirst, do exponents.
[tex]\sf{9^2-14}[/tex]
[tex]\sf{9^2=9*9=81}[/tex]
[tex]\sf{81-14}[/tex]
Subtract.
[tex]\sf{81-14=\boxed{\sf{67}}[/tex]
[tex]\Longrightarrow: \boxed{\sf{67}}[/tex]
Therefore, the correct answer is 67.I hope this helps. Let me know if you have any questions.
What is the perimeter of this regular pentagon?
Answers
Answer: P= 5 Hope I helped you
which choice is equivalent to the expression below? 12^-2
12 Points!!!!
Answers
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
[tex]12 {}^{ - 2} = 0.00694444444 = \frac{1}{144} [/tex]
Simplify:
4(6-2) + 62 - 52
Submit
Answers
Answer:
26
Step-by-step explanation:
4 (6-2) + 62 - 52 =
4 x 4 + 62 - 52 =
16 + 62 - 52 =
78 - 52 = 26
26
Determine the value of X
Answers
Answer:
x=17
Step-by-step explanation:
There are two congruent angles so we can double the given values and set that equal to 360. After setting that equal to 360 you find that x is equal to 17, then you plug that into the original equations and get your angles
Elvis chooses three different numbers.
• The sum of the three numbers is 24.
• One of the numbers is a square number.
• The other two numbers are factors of 20.
Find the three numbers chosen by Elvis.
Write the numbers in ascending order. 1
Answers
Answer:
5,9,10.
Step-by-step explanation:
The factors of 20 that I know of are 2,5,10
The possible square no. is below 10 that is, either 4 or 9
Using the above no's you can substitute to see which three give 24 as the sum, thus 5,9,10
Answer: 16+4+4
Step-by-step explanation: The answer is 16, 4, and 4.
Square values in 24 are 4,9, and 16.
You can take a look at this and see that a factor of 24 is 4.
You can do 16+4+4.
Hope this helps!
-You Brainly Helper!
Once upon a time I weighed 120 pounds. Now I weigh 225 pounds. What is the percent change?
Answers
Answer:
The percent change is 87.5%. (You're one chonky boi lol)
Step-by-step explanation:
To find the percent change, calculate the difference between the new weight and the old weight and divide that value by the old weight and multiply by 100% to find the percent change. In this case, the equation would be [tex]\frac{225-120}{120}[/tex] * 100% = [tex]\frac{105}{120}[/tex] * 100% = 0.875 * 100% = 87.5%, so the correct answer is a percent change of 87.5%.
Answer:
[tex]53\frac{1}{3}[/tex] %
Step-by-step explanation:
[tex]\frac{120}{225} =\frac{y}{100}[/tex]
225 × y = 120 × 100
225y = 12000
225y ÷ 225 = 12000 ÷ 225
[tex]y=53\frac{1}{3}[/tex]
John spent 2/3 of his savings on a new Bluetooth speaker. the speaker cost $80. how much did John have in savings before he bought the speaker?
Answers
Answer:
$120
Step-by-step explanation:
Which set of numbers CANNOT represent the lengths of the sides of a triangle?
O A. 9, 12, 19
O B. 7, 5, 6
C. 6, 8, 11
O D. 7, 18, 11
Answers
Answer:
D
Step-by-step explanation:
The problem with D is that 7 + 11 = 18. The rule is any two sides must exceed the third. D gives the shorter + the middle length = the longest length.
That can't work. All the others are fine.
hewlpppppppppppppp pweaseee
Answers
Answer:
there is no question to be answered.
Step-by-step explanation:
Please answer this correcttly, I will give brainliest if it is correct and you get 13 points
Answers
Answer:
UNSCRAMBLE
Step-by-step explanation:
Rachel needs to buy some pencils. Brand A has a pack of 28 pencils for $5.29. Brand B has a pack of 48 pencils for $8.47 . Find the unit price for each brand. Then state which brand is the better buy based on the unit price. Round your answers to the nearest cent.
Answers
Answer:
Hence Brand B is the better buy, since the unit cost is smaller than A
Step-by-step explanation:
Given data
Brand A
Has a pack of 28 pencils for $5.29
unit cost
=5.29/28
=$0.19
Brand B
Has a pack of 48 pencils for $8.47
unit cost
=8.47/48
=$0.18
Determine the value of x in the diagram.
Answers
In the given rectangle
US = 4x - 16 and RO = x + 2, find RT.
Show all the work
Answers
Answer:
RT = 24
Step-by-step explanation:
Diagonals of rectangles bisects each other and equal in length (congruent) to each other.
Thus
US = RT
US = 2(RO)
4x - 16 = 2(x + 2)
4x - 16 = 2x + 4
2x = 20
x = 10
RT = 2(RO)
= 2(x+2)
= 2(10 + 2)
= 2(12)
= 24