Answer:
C
Step-by-step explanation:
porque sarabtiene más puntos que Bernie
Tina paid $6.60 for some $0.15 stamps and some $0.20 stamps. She bought 37 stamps in all. How many of each kind did she buy?
PLS HELP
Answer:
1 set of A= $0.15
1 set of B= $0.20
Total Stamps bought = 37
Total purchase = 37
Let X= Set A of $0.15 each
Y= Set B of $0.20 each
x+y = 37----------X=37-Y
0.15X + 0.20Y = 6.60
0.15(37-Y) + 0.20Y = 6.60
5.55- 0.15Y + 0.20Y =6.60
0.05 Y = 6.60-5. 55
Y=1.05/ 0.05= 21
X= 37-21= 16
PLEEEASE HELP! TEST TMRW AND I MIGHT FAIL.
An aeroplane is 528 ft directly above an automobile and starts east at the rate of 20 miles an hour at the same instant the automobile starts east at the rate of 40 miles an hour. How fast are they separating
Answer: 20 mph
Step-by-step explanation:
Given
The airplane is at a height of 528 ft with a rate of 20 mph
The automobile is also directing east at the rate of 40 mph
at this instant, they are separating by the relative velocity between them
[tex]\Rightarrow v_{rel}=40-20=20\ mph[/tex]
What is the missing term?
Answer:
-8
Step-by-step explanation:
Multiply -4 and 2
Answer:
-8
Step-by-step explanation:
An amusement park charges an entrance fee of $20 and the rides cost $4 each. Suppose you write a function for the total cost for entering the park and riding a. Number of the rides. What is the domain of the function based on the given context?
Answer:
With the information provided, you can say that the total cost is equal to the entrance fee plus the price per ride for the number of rides, which would be:
C(x)=20+4x,where:
x is the number of rides
The domain of the function refers to all the inputs that the function can have and in this case, the domain consists of all real numbers greater than or equal to zero since x refers to the number of rides and it can't have a negative number.
A spinner with 20 equal-sized sections has 5 red, 10 blue, 3 green, and 2 yellow sections. Ann pays $10 to spin the spinner. If she spins a yellow, she wins $20; if she spins green, she wins $15; otherwise, she loses.She plays the game twice. What is the expected payoff for her games?
Answer:
The expected payoff for Ann is that she loses the game
Step-by-step explanation:
The expected payoff for Ann is that she loses the game, this is because only 5 out of the 20 sections allow Ann to win money, this is only 25% of the spinner. Meaning that 75% of the spinner will cause Ann to lose the game. Rolling two times increases the odds that she will lose the game. Since the greatest probability is that Ann will land on a section that causes her to lose the game, then this is the expected payoff.
Each set of three numbers represents the lengths, in units, of the sides of a triangle. Which set can not be used to make a triangle?
A: 7, 6, 14
B: 4,4,4
C: 6, 6, 2
D: 7, 8, 13
Answer:
A. 7,6,14
Step-by-step explanation:
Rules for side lengths of triangle.
1. Any side should be less then the sum of the other two angles.
2. The same side should be greater than the subtraction of the other side lengths(bigger side - smaller side)
A.
7 < 6+14 . Correct
7> 14-6 . Incorrect
This cannot be a solution (impossible)
B.
4<4+4 . Correct
4>4-4 . correct
This is a solution (equilateral triangle)
C.
6<6+2 . Correct
6>6-2 . Correct
This is a solution (isosceles triangle)
D.
7<8+13 . Correct
7>13-8 . Correct
This is a solution (scalene triangle)
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
3) Champs sold twice as many footballs as basketballs and 5 more soccer
balls than basketballs. If they sold a total of 65 balls, how many of each
kind of ball did they sell?
Answer:
12, 15
Stepby-step explanation:
3.
B
ge
18cm
A
60°
20cm
с
Calculate the size of angle ABC.
Answer:
Step-by-step explanation:
(ASAP PLEASEEE)What is the measure of Zx?
Angles are not necessarily drawn to scale.
P
R
570
20
0
C=
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the concept of Angles.
Here, total angle is 90°.
hence, 90° = x + 57°
so, ==> x = 90° - 57°
x = 33°
hence, x = 33°
Answer:
x=33°
Step-by-step explanation:
90-57=33. Basically, Q is 90°
Of the 60 students who auditioned in a singing contest, 40% were asked to come back for a second audition. After the second audition, 6 students were asked to come back for a final audition.
What percentage of the students from the second audition were asked to come back for the final audition?
Students sell 80% of the books at a book slae. They sell 48 books in all. How many books are at the book sale? Show your work.
Answer:
60 books were at the book sale
Step-by-step explanation:
Let
x = total books at the book sale
Percentage of books sold = 80% of x
= 80/100 * x
= 0.8x
Number of books sold = 48
Therefore,
0.8x = 48
Divide both sides by 0.8
0.8x / 0.8 = 48 / 0.8
x = 60 books
x = total books at the book sale = 60 books
Number of books unsold = Total books at the book sale - number of books sold
= 60 - 48
= 12
Number of books unsold = 12 books
can some one give th the right anwser and no website plz ill give u brainlynest
Answer:44
Step-by-step explanation:
Just you the proportions:
so you will get (20*33)/15 which is equals to 44
Answer:
44
Step-by-step explanation:
From the one side the relationship is 15:20, so for this side it's 33:??
15/20 = .75
33/.75 = 44
A line passes through (0, -1.8) and has a slope of -3. Write an equation of the line.
Answer:
y=-3x-1.8
Step-by-step explanation:
y-y1=m(x-x1)
y-(-1.8)=-3(x-0)
y+1.8=-3(x)
y+1.8=-3x
y=-3x-1.8
help please!!!!!!!!!!!!!!
Answer:
x = 42,33°
Step-by-step explanation:
3x + 1° + 52° = 180° [angles on a straight line]
3x + 53° = 180°
3x = 180° - 53°
3x = 127°
divide both sides by 3
x = 42,33°
A rectangle is drawn so that the width is 2 feet shorter than the length. The area of the rectangle is 63 square feet. Find the length of the rectangle
Answer:
9
Step-by-step explanation:
Find the lateral area and surface areas of a regular triangular right prism with base edge 10 cm and height 13cm. Round to the nearest tenth.
PLEASE ANSWER I NEED HELP!!!
Charlotte needs 16 1/2 yards of fabric to make a quilt. She has one piece of fabric that is 3 1/2 yards and another piece of fabric that is 6 3/4 yards. How many more yards of fabric does Charlotte need to make the quilt?
YOUR ANSWER BETTER NOT HAVE A LINK OR YOU ARENT GETTING POINTS!
Answer:
6 1/4
Step-by-step explanation:
Add up the fabric that she has
3 1/2 + 6 3/4
Get a common denominator
3 2/4 + 6 3/4
9 5/4
9 4/4 + 1/4
10 1/4
Subtract this from the fabric that she needs
16 1/2 - 10 1/4
Get a common denominator
16 2/4 - 10 1/4
6 1/4
Find the midpoint of the segment with the following endpoints.
(-9,-8) and (-1,2)
Answer:
The midpoint is (-5, -3).
Step-by-step explanation:
Finding the coordinates of the midpoint consists of averaging the x-coordinates of the given points and then doing the same for the y-coordinates.
x coordinate of midpoint = (-9 - 1)/2 = -5
y coordinate = -6/2 = - 3
The midpoint is (-5, -3).
3x+3 solve for x PLLSSSS HELP giving brainliest
if you mean that 3x+3=0 then x should equal 0
Answer:
x = 27
Step-by-step explanation:
3x + 3 = 84
3x = 84 - 3
3x = 81
x = 81/3
x = 27
A farmer has 165 feet of fencing material in which to enclose a rectangular grazing area. He wants the
length x to be greater than 50 feet and the width y to be no more than 20 feet.
write a system of inequalities to represent this situation
Answer:
2*x + 2*y ≤ 165 ft
x > 50ft
0ft < y ≤ 20ft
Step-by-step explanation:
For a rectangle with length x and width y, the perimeter of the triangle is:
P = 2*x + 2*y
The perimeter needs to be equal or smaller than the length of fencing that the farmer has, then:
2*x + 2*y ≤ 165 ft
We also know that:
(x strictly larger than 50ft)
x > 50ft
(y can be, at most, 20 ft)
0ft < y ≤ 20ft
(where we added the restriction that y needs to be larger than zero, because we can not have a width equal or smaller than zero)
Then the system of inequalities that represent this situation is:
2*x + 2*y ≤ 165 ft
x > 50ft
0ft < y ≤ 20ft
ASAP, Please help me with this question this is time sensitive.
Erik buys a new combination lock for his locker at the gym. The lock has 3 dials, each with the numbers 0 through 9.
The probability that he sets the combination as 4-3-9 is _____.
Answer: did anyone find the answer???
Step-by-step explanation:
Can someone please help me to calculate this? I would really appreciate it. (-2)²(-3)³
Answer:
-108
Step-by-step explanation:
(-2)²(-3)³
When a number has an exponent, it means that the number is being multiplied to itself. For example, in (-2)², it means (-2) multiplied by itself twice since the exponent is 2. And for (-3)³, it means (-3) multiplied by itself 3 times since the exponent is 3.
= (-2)(-2)(-3)(-3)(-3)
Multiply. Remember that two negative numbers multiplied together make a positive number, and a positive and a negative number multiplied together make a negative.
= (4)(-3)(-3)(-3)
= (-12)(-3)(-3)
= (36)(-3)
= -108
Therefore, the answer is -108.
I hope this helps!
A side of the triangle below has been extended to form an exterior angle of 159°. Find the value of x
Answer:
x=21°Step-by-step explanation:
From the figure
x+159=180°
(linear pair)
x=180-159
x=21°
hope it helps...
have a great day!!
There are 10 girls and 5 boys in Ms. Sander's class. Each day, she randomly asks one student to take attendance. In 180 school days, which is the best prediction for the number of times that the student will be a girl?
Answer:
120
Step-by-step explanation:
The probability of a girl being picked one day = 10/15 = 2/3
Total number of days = 180
Therefore, the nunber of times it will be a girl = 2/3 x 180 = 2 x 60 = 120
Hope this helps
Equation of a line
Equation of a line.
⚠️IF YOU KNOW, PLEASE HELP ME THIS I HAVE TO SUBMITTED TODAY!!! ( ⚠️
Write the Equation of the line in fully simplified slope- intercept form
Answer:
y=-6/5x-2
Step-by-step explanation:
We are given points (5,-8) and (-5,4)
Slope = m = (y₂-y₁)/(x₂-x₁) = (-8-4/(5-(-5)) = -12/10 = -6/5
Y-intercept = b = (0,-2)
Final equation: y=-6/5x-2
Answer:
y=-6/5x-2
Step-by-step explanation:
y=mx+b
Its sloping downwards, so a negative slope.
two points: (-5,4) and (5,-8)
---------------------------------------------
so first find the slope.
y2-y1 / x2-x1 <= formula
so: -8-(4) / 5-(-5)
which becomes => -12/ 10
which is 6/5 the slope is 6/5
------------------------------------------
plug this into y=mx+b, where m is the slope
so: y=6/5x+b
------------------------------------------
obviously b is the y intercept, where the line meets y
the y intercept is -2
sooooooo final answer is
----------------------------------
y=6.5x+(-2)
-----------------------------------
Negative slope, so becomes y=6/5x-2
help please- I’m in between 962.5 and 1925 cubic meters
Nancy watches her dad fix a broken chair with a nail and a hammer, but she finds the hammering sound too loud. So, she decides to go back to her room, which is next door. On entering her room, she finds the hammering does not sound as loud. Why does the sound become faint?
Answer:
The sound of hammering becomes fainter as Nancy goes into her room because some of the sound waves are absorbed by the walls. Only part of the sound waves coming from the other room comes into her room, so the hammering sounds quieter.
I hope this helps. Good luck ^^
Beth wants to buy a gaming system for $220.
• She plans to buy some games for $24.99 each.
• She will have to pay a 6% tax on all of her purchases.
• She must not spend more than $340.
Enter the greatest number of games that she can buy.
I NEED ASAP NOW
answer:
she can only buy 4 games
PLEASE HELP ME I REALLY NEED IT PLZZ !!
Answer: 72.32
Step-by-step explanation:
The line is 180 so
7x + 8x + 44.4 = 180
15x + 44.4 = 180
-44.4 = -44.4
15x = 135.6
divide both by 15
x = 9.04
So 8 * 9.04 = 72.32
Answer:
The answer is 72.32°
Step-by-step explanation:
So, since that is a straight line, we know that all of the angles add up to get 180° total. Using this knowledge, we can determine that 44.4 + 8x + 7x = 180°.
First, we need to find what x is to find the missing values. To do that, we have to set all the values, 44.4, 8x, and 7x equal to 180, because we know they add up to 180°.
44.4 + 8x + 7x = 180
Combine the like terms.
44.4 + 15x = 180
Bring the 44.4 over to the other side in order to get x alone by subtracting it from 180.
15x = 135.6
Divide both sides by 15 to get x completely alone.
x = 9.07
Now we have what x is, 9.07.
All you need to do now is substitute 9.07 into the place of x.
8(9.07) = 72.32
So now you know that the highlighted angle is 72.32°.