Answer:
84%
Step-by-step explanation:
Add the total number of questions (21+4 = 25)
divide 25 by 21
25/21 = 0.84
Multiply 0.84 by 100 to change it to a fraction
0.84*100 = 84%
The percentage that Brenda got correct was 84 percent
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°.
BRAINLIEST TO CORRECT ANSWER! :) NO links as answers, or you will be reported!! (question 20)
A package of Little Bites dog cookies costs $9.20. Which equation can be used to find the total cost, c, of p packages of dog cookies?
Answer:
c=9.20p
Step-by-step explanation:
cost is what you're solving for so that goes on the outside. each package costs 9.20 so you multiply however many packages by that number when finding the cost.
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
plsssssssssssssssssssssssssssssssssss help
Answer:
m=10
n=12
Step-by-step explanation:
[tex]\frac{1}{5} m-\frac{1}{6} n=0\\m=\frac{5}{6} n\\5 \times \frac{5}{6} n-4n=2\\25n-24n=12\\n=12\\m=\frac{5}{6} \times 12=10[/tex]
This equation can be used to find p, the number of dollars Della earned after selling her handmade doll clothes at a craft fair. p = 210 − (20 × 4) What was the amount of Della's profit?
A) $80
B) $105
C) $130
D) $150
Answer:
C) $130
Step-by-step explanation:
simplify the equation:
p = 210 - (20 * 4)
p = 210 - (80)
p = 130
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
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 are the cordinates of the point on the directed line segment from -3 -9 to 4 5 that partitions the segment into a ratio of 5 to 2
Answer:
[tex](x,y) = (2,1)[/tex]
Step-by-step explanation:
Given
Coordinate: (-3,-9) and (4,5)
Ratio= 5 : 2
Required
Determine the point at the segment
The coordinate of the point is calculated using:
[tex](x,y) = [\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n}][/tex]
Where:
[tex]m : n=5:2[/tex]
[tex](x_1,y_1) = (-3,-9)[/tex]
[tex](x_2,y_2) = (4,5)[/tex]
So, we have:
[tex](x,y) = [\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n}][/tex]
[tex](x,y) = [\frac{5 * 4 + 2 * -3}{5+2},\frac{5*5+2*-9}{5+2}][/tex]
[tex](x,y) = [\frac{14}{7},\frac{7}{7}][/tex]
[tex](x,y) = (2,1)[/tex]
The coordinate of the point is: (2,1)
is this a supplementary angle or a complementary angle or neither?? number 1
Answer:
its neither
Step-by-step explanation:
supplementary means the angles would equal 180° and complementary means the Angel's would equal 90°
in this case the angles equal to neither.
Answer:
1.neither
as there sum =56+142=198°
3.supplementary
sum =57+123=180°
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:
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
3.
B
ge
18cm
A
60°
20cm
с
Calculate the size of angle ABC.
Answer:
Step-by-step explanation:
Zymirah earns 5% commission on all sales at a jewelry store plus $10 an hour. Yesterday she sold $3,200 in merchandise and earned a total of $240. How many hours does she work?
Answer:
8 hours
Step-by-step explanation:
Given data
Commission= 5%
Sales= $3,200
Total earnings= $240
Let us find the amount in commission earned
=5/100*3,200
=0.05*3,200
=$160
Hence 240-160=$80
$80 is the amount earned yesterday
we are told that per hour is $10
Hence $80 will be earned for
=80/10
=8 hours
Determine whether the given value is a solution of the equation: x + 15 = 10; x=5 *
Answer:
It is not correct, x = -5
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
because 5+15=10
-15=15
x= -5
which means its NOT a solution because it equals -5
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
I need help with these questions its a bit hard to understand ill mark you the brainiest whos ever answer is in full sentence and makes sense
Answer:
Step-by-step explanation:
1. 520/13=40
140/7=20
40*20=80
2. 300*150=45000
45000*6=270000
3. 230-70*2=90
90/2=45 (width)
70*45=3150(area)
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:
What is the missing term?
Answer:
-8
Step-by-step explanation:
Multiply -4 and 2
Answer:
-8
Step-by-step explanation:
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.
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
Work out the size of the interior angle of a regular 18-sided polygon.
Answer:
160°
Step-by-step explanation:
The formula below gives the measure of an interior angle of a regular polygon of n sides.
[(n - 2)180]/n
[(18 - 2)180]/18
16(10)
160
Answer: 160°
Please help I have been stuck for a while now
Answer:
L'(1;1) M'(5;1) P'(5;4)
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.
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
Using the equation y=kx what would be the proportionate equation if she worked 25 hours and made 150.00
Answer:
y = 6x
Step-by-step explanation:
Equation representing the relation between duration of work and earning is,
y = kx
Here, y = earnings
x = Working hours
k = Proportionality constant
By substituting the values in the given equation,
x = 25 hours
y = $150
150 = k(25)
k = 6
Therefore, equation modeling the situation will be,
y = 6x
Calculate the average rate of change for the graphed sequence from n = 2 to n = 4.
(2 points)
Answer:
Average rate of chage = [change of y] / [change of x] = [- 10.125 - (-.35)] /[4 - 2] =
= -3.3125
Answer: option B.
Step-by-step explanation:
please mark as brillant
Answer:
B.) −3.3125
Step-by-step explanation:
I am doing the test on flvs right now.
What is the point-slope form of a line with slope 2 that contains the point
(1,3)?
Answer:
(y-3) = 2(x-1)
Step-by-step explanation:
Point slope form is
(y-y1) = m(x-x1) where m is the slope and (x1,y1) is a point on the line
(y-3) = 2(x-1)
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?
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