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.
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 : 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
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
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
which one is the bigger minus 5 by 7 or 2 by 3
Answer:
minus 5 by 7
Step-by-step explanation:
5 - 7 = -2
2 - 3 = -1
The smaller the negative integer, the bigger the number.
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]
Help me with this!! Will mark Brainliest!!!
Answer:NO!!
Step-by-step explanation:
RS distance of 2 while TU distance of 1
After six games of crazy golf, Harvey's mean score was 39.5. After seven games his mean
had dropped to 39. What did Harvey score in his seventh game?
Answer:
36
Step-by-step explanation:
Basically dividing both of the outcome of the reliable equation, the outlier was 36
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.
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
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
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:
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
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:
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
I need some help please
Answer:
segments EA and DG
Step-by-step explanation:
A diameter is when a line segment crosses the center of the circle and its endpoints lie on the circle. Both segments EA and DG satisfy the definition of a diameter.
Answer:
EA and DG
Step-by-step explanation:
For it to be a diameter, it has to pass through the center (point H) and touch both sides of the circle.
The ones that work for that are EA and DG
First to answer will be the briniest A ladder is placed 5m away from the wall.the distance from the ground to straight window is 12m ,
a.find the length of the ladder
b.name the property used to find the length of the ladder
c.since the wall is perpendicular to the ground ABC=
mark me brainlist pls im first
Write an equation of the line in slope-intercept form.
Answer:
y= mx+ b
y = 4/2x - 2
Step-by-step explanation:
What is the length of PR ?
A. 23π
B. 83π
C. 43π
D. 163π
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
Please help with #17 & #18 really struggling!
what is 4[tex]x^{2}[/tex]-12x+9=0
Answer:
Step-by-step explanation:
Answer: x = 1.5
Step-by-step explanation:
WILL MARK BRAINLIEST IF GOTTEN RIGHT IF GOTTEN WRONG ON PURPOSE OR IF YOU DONT KNOW I WILL REPORT YOU :)
Answer:
I'm like 99.8 percent sure it's b5
Answer:
B) y = 5
Step-by-step explanation:
10/y = 8/4
8y = 40
y = 5
The highest common factor of 51 and 87?
Answer:
3
Step-by-step explanation:
Answer:
3
Explanation:The factors of 51 are 1,3,17,51; The factors of 87 are 1,3,29,87
Hope this helps =]
23. Which point lies in Quadrant IV?
Х
а.
(2,8)
b. (-4,1)
c. (5.-7)
d. (-3,0) I
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
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.
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
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 :)
