Answer:
53.5
Step-by-step explanation:
c = the height of the first 3 boys.
c = 54 + 48.5 + 46
c = 148.5
Now you add a fourth boy. His height is h.
A(h)= (c + h)/d
d = the total number of boys which is 4.
The new average is 50.5
A = (c + h)/d
50.5 = (148.5 + h) / 4 Multiply both sides by 4
202 = 148.5 + h Now subtract 148.5 from both sides
202 - 148.5 = h
h = 53.5
The average person blinks about 9 times per minutes. At this rate, about how many blinks does the average person take in 30 minutes?
Answer:
270 blinks in 30 minutes
Step-by-step explanation:
9 x 30 = 270
hope this helps :)
Elsa, Hans, and Charlie have a total of in their wallets. Hans has less than Elsa. Charlie has times what Hans has. How much do they have in their wallets?
Answer:
Elsa = x = $28
Hans = y = $26
Charlie = z = $56
Step-by-step explanation:
Elsa, Hans, and Charlie have a total of $106 in their wallets. Hans has $6 less than Elsa. Charlie has 2 times what Hans has. How much do they have in their wallets?
Let us represent.
The amount of money
Elsa = x
Hans = y
Charlie = z
Elsa, Hans, and Charlie have a total of $106 in their wallets.
= x + y + z = 106
Hans has $6 less than Elsa.
y = x - 6
Charlie has 2 times what Hans has.
z = 2x
Hence:
x + x - 6 + 2x = 106
4x - 6 = 106
4x = 106 + 6
4x = 112
x = 112/4
x = 28
Elsa = x = $28
Hans = y = $26
Charlie = z = $56
What is the answers to 12M+7+M+20
Answer:
13M+27
Step-by-step explanation:
Answer:
13m +27
Step-by-step explanation:
12M+7+M+20
=12M+M+7+20
=13M+7+20
=13M+27
Help me with this!! Will mark Brainliest!!!
Answer:NO!!
Step-by-step explanation:
RS distance of 2 while TU distance of 1
A number m increased by 5 is 7
Answer:
m+5=7
Step-by-step explanation:
a number=m
increased by 5= +5
is 7 = =7
(a number) 5 (increased by 5) +5 (is 7) =7
5 +5 =7
Simplify the following rational expression.
20k^4 – 26k^3/12k^4 + 8k^3
Which values of k: make the expression undefined?
Please help ASAP
Answer:
dont know how to solve.
Step-by-step explanation:
sorry
Answer: 1.60000512 * 10^17
Step-by-step explanation:
Gwen bought a 2 1/4 pound bag of Finch bird seed and 3 1/2 pound bag of parrot bird seed . The total cost for the two bags was $16.79 (Find the cost per pound if it is the same for both types of bird seed)
Answer:
Software comprises the entire set of programs, procedures, and routines associated with the operation of a computer system. The term was coined to differentiate these instructions from hardware—i.e., the physical components of a computer system.
Answer:
$2.92 would be the cost per pound
A jar contains only pennies, nickels, dimes, and quarters. There are 23 pennies, 22 dimes, and 20 quarters. The rest of the coins are nickels. There are 79 coins in all. How many of the coins are not nickels? If n represents the number of nickels in the jar, what equation could you use to find n?
Answer:
1. 65 coins
2. 79 - (23 + 22 + 20) = n
Step-by-step explanation:
You can use the expression 23 + 22 + 20 to get the amount of coins that are not nickles. And for two? Try it yourself.
Hope this helps. Have a nice day.
7. Which statement best describes the function
y = 2x^2 + 3 ?
A. The function is nonlinear.
B. The function is linear.
C. The function is linear at some points and nonlinear at other points.
D. Not enough information is given to decide.
Find the value of the lettered angles in each of the following ( see image ).
Please show workings.
The only given Angles are 40° , 60° , 10°
Answer:
Same arc intercepted, the angles are equal
t = 10°u = 60°v = 40°Cyclic quadrilateral has supplementary opposite angles
s + v + 60° + 10° = 180°s + 40° = 110°s = 70°And s and r intercept same arc, therefore:
r = s = 70°solve for x then, find m < FDG and m <GOF.
Answer:
choice 4) x = 27, ∠FDG = 62°, ∠GOF = 118°
Step-by-step explanation:
2x + 8 + 4x + 10 = 180°
6x + 18 = 180
6x = 162
x = 27
∠FDG = 2(27) + 8 = 62°
∠GOF = 4(27) + 10 = 118°
3 over 9 + 2 over 3
Answer:
1
Step-by-step explanation:
3/9 is equal to 1/3 so 1/3+2/3= 3/3 making it 1 whole
Answer: 3/9+2/3=1
3/2
+ 2/3
____
1
Question 3
The size of a TV is usually given by the length of the screen diagonal. If the screen dimensions
of a TV are 16 inches by 12 inches, what size is this TV?
Answer
Answer:a
Step-by-step explanation:
It’s an step by step problem
23. Which point lies in Quadrant IV?
Х
а.
(2,8)
b. (-4,1)
c. (5.-7)
d. (-3,0) I
Find the perimeter and the area of the figure.
6 cm
7 cm
9.5 cm
6.5 cm
The perimeter and the area of the composite figure are 29 centimeters and 49.5 square centimeters, respectively.
How to determine the perimeter and the area of the figure
In this problem we have the representation of a composite figure, the result of the combination of a rectangle and a triangle. The perimeter of the figure is the sum of the sides and the area of the composite figure is the result of suming the areas of the rectangle and triangle:
Rectangle
A = b · h
Triangle
A = 0.5 · b · h
Where:
b - Baseh - HeightA - AreaAnd the perimeter and the area of the composite figure are now computed:
Perimeter
p = 6 cm + 7 cm + 6.5 cm + 9.5 cm
p = 29 cm
Area
A = 0.5 · (6 cm) · (2.5 cm) + (6 cm) · (7 cm)
A = 7.5 cm² + 42 cm²
A = 49.5 cm²
To learn more on composite figures: https://brainly.com/question/23082031
#SPJ1
what is 4[tex]x^{2}[/tex]-12x+9=0
Answer:
Step-by-step explanation:
Answer: x = 1.5
Step-by-step explanation:
Simplify the following surd expressions
a) 5√5 - 2√5
b) 8√7 + 3√7
Answer:
a)3√5
b)11√7
is answer.
6.) *
Is the sequence arithmetic? If so, find the common difference.
2.1, 7.5, 12.9, 18.3
no, 3.5
no, 5.1
yes, 9.6
yes, 5.4
Answer:
the common difference is 5.4 and yes, this is an arithmetic sequence
Step-by-step explanation:
Each new term is derived by adding 5.4 to the previous term:
2.1 + 5.4 = 7.5,
7.5 + 5.4 = 12.9,
and so on,
so the common difference is 5.4 and yes, this is an arithmetic sequence.
Eric has 240 coins in his collection. 11\20 of his coins are pennies. 4\20 of the coins are nickels. The rest f the coins are quarters. How many of the coins are quarters? Explain how you got your answer.
Answer:Number of coins that are quarters =60
Step-by-step explanation:
Total coins in possession of Eric=240
Number of coins that are pennies=11\20 x 240= 132
Number of coins that are nickels=4\20 x 240= 48
Since the rest are quarters,
Number of coins that are quarters =Total coins in possession of Eric -( Number of coins that are pennies+ Number of coins that are nickels)
=240-(132+48)
=240-180
=60
can someone help please
Answer:b
Step-by-step explanation:
For positive acute angles A and B, it is know that tan A= 8/15 and sin B= 11/61. Find the value of cos (a+b) in simplest form
Answer:
812/1037
Step-by-step explanation:
To solve this, we have to use trigonometric identities.
Cos (A + B) is given as Cos A Cos B - Sin A Sin B. And from the question, we have that
Tan A = 8/15.
We know that in a triangle, the Tan angle is represented Opp/Adj and thus the Opp is 8, and the Adj is 15. Using Pythagoras, we have
hyp² = opp² + adj²
hyp² = 8² + 15²
hyp² = 64 + 225
hyp² = 289
hyp = √289 = 17
The identity of Cos is Adj/Hyp and that of Sin is Opp/Hyp.
Cos A = 15/17
Sin A = 8/17
Repeating the same process for B, we have
Sin B = 11/61
adj² = hyp² - opp²
adj² = 61² - 11²
adj² = 3721 - 121
adj² = 3600
adj = √3600 = 60
Cos B = 60/61
Now, using the earlier stated trigonometric identity, we have
cos (a + b) = CosA CosB - SinA SinB
cos (a + b) = 15/17 * 60/61 - 8/17 * 11/61
cos (a + b) = 900/1037 - 88/1037
cos (a + b) = 812/1037
Combine like terms
C + 11d + 7c - 4d
(giving brainiest)
real quick one should take someone around 5-7-10 minutes it really depends!
Answer:
Step-by-step explanation:
E
Map quadrilateral ABCD to quadrilateral A′B′C′D′ with a rotation of 180° about the origin followed by a translation 3 units left and 7 units up.
Answer:
See Explanation
Step-by-step explanation:
Given
Shape: Quadrilateral ABCD
Transformations:
180 degrees rotation
3 units left
7 units up
Required
Determine A′B′C′D
The coordinates of ABCD is not given; So, I will solve generally.
Assume the coordinates of ABCD is (x,y)
When (x,y) is rotated 180 degrees, the new point is: (-x, -y)
Solving further:
Translation 3 units left
When a point (x,y) is translated b units left, the new point is (x - b, y).
So:
[tex](-x, -y) ====> (-x - 3, -y)[/tex]
Translation 7 units up
When a point (x,y) is translated h units up, the new point is (x, y + b).
So:
[tex](-x - 3, -y) ====> (-x - 3, -y + 7)[/tex]
Assume that the coordinates of A in ABCD before translation is (2,6).
i.e. A = (2,6)
The image A' will be:
[tex]A' = (-2-3,-6+7)[/tex]
[tex]A' = (-5,1)[/tex]
natasha bought a tennis racket that was marked down by price, p, by 20%
Part A
Write an expression with two terms representing the price Natasha paid
Part B
If the racket was originally priced at $125, how much did Natasha pay?
Natasha paid______ PLEASE SHOW YOUR WORK
Answer:
$20
Step-by-step explanation:
125 * 20%(0.2)
= $20
___________
125 - 20% = p or 125 - 0.2 = p
What term describes a solution at standard temperature and pressure that is holding the maximum amount of solid that it can before it precipices out.
Please help with #17 & #18 really struggling!
en una ciudad a las 6:00am la temperatura era de 2°C. A lo largo del dia, la temperatura tuvo las siguientes variaciones:
8:00am: disminuyo 4°C
10:00am: aumento 6°C
12:00 pm: disminuyo 2°C
2:00 pm: disminuyo 2°C
4:00 pm: aumento 4°C
6:00 pm: aumento 1°C
¿Cual es la temperatura a las 6:00 pm?
es para hoy tengo 20 minutos plis
Answer:
5°C
Step-by-step explanation:
what is the area of this figure
Answer:
174.5m
Step-by-step explanation:
So we have to break the shapes down to triangle, rectangle and the small rectangle
Area of rectangle=WxL
Area of triangle= (BxH)÷2
triangle=
(23x11)÷2
=253÷2
=126.5m
rectangle=
9x19
=28m
square#2(the small one)=
5x4
=20m
All:
20+28+126.5
=174.5m
QUESTION : A family of four went out to dinner. Their bill came to $156.98 and they want to leave a 15% tip. How much the tip will be?
please help!!!!
Answer:
tip = $23.55
Step-by-step explanation:
156.98 x 0.15 = 23.55
