Stacy sold half of her doll collection and then bought 12 more. She now has 28 dolls. With how many did she begin?
Find the value of x. Round to the nearest tenth. 37 17.3 units
Answer:
x ≈ 21.7
I rounded to the nearest tenth because the values are given in tenths. The first few digits of x are below if you are rounding to something else, as the image is cut out.
Step-by-step explanation:
(It will not let me post, so I've attached a screenshot of my explanation:)
The value of x is 21.7 unit to the nearest tenth
What are the trigonometric identities?Equations using trigonometric functions that hold true for all possible values of the variables are known as trigonometric identities.
Given:
The triangle is a right-angled triangle.
Then, cosx = Adjacent leg/ Hypotenuse
Cos37° = 17.3 / x
x = 17.3/ Cos37°
x = 17.3 / 0.7986.
x = 21.67 unit.
Therefore, the value of x is 21.67 unit.
To learn more about the trigonometric identities;
https://brainly.com/question/24377281
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What is the volume of the figure?
8 cubic units
o 24 cubic units
16 cubic units
o 12 cubic units
PLeaseee helppp fast best answer gets brainliest good luck ;)
Answer:
a. 6
b. 144
Step-by-step explanation:
a. 25% of 24 is 6
b. 24 x 6 = 144
Perry and Jack are selling pies for a school fundraiser. Customers can buy apple pies and black berry pies. Perry sold 9 pies and 12 blackberry pies for a total of $165. Jack sold 8 apple pies and 3 blackberry pies for a total of $70. Find the cost each of one apple pie and one black berry pie.
Answer: apple pie=5
blackberry pie=10
Step-by-step explanation:
apple pies=a
blackberry pies=b
Perry sold:
9a+12b=165
Jack sold:
8a+3b=70
we have a system of equations
9a+12b=165
9a=165-12b
a=(165-12b)/9
replace in the second
8(165-12b)/9 +3b=70
after we do the multiplication we will get
1320-96b+27b=630
69b=690
b=10 dollars
a=(165-120)/9=45/9=5 dollars
A circular pen has circumference of 77.5 feet. Approximate π to 3.14 and estimate how many sheep could be safely kept in the pen if each sheep needs at least 45 square feet.
Answer:
10 sheep
Step-by-step explanation:
First, we have to determine the area of the circular pen.
Area of a circle = [tex]\pi[/tex][tex]r^{2}[/tex]
But,
Circumference of a circle = 2[tex]\pi[/tex]r
So that,
77.5 = 2 x 3.14 x r
77.5 = 6.28r
r = 12.34
Radius of the pen is 12.34 feet.
Thus,
Area of the pen = [tex]\pi[/tex][tex]r^{2}[/tex]
= 3.14 x [tex](12.34)^{2}[/tex]
= 478.15
Area of the pen = 478.15 square feet
Number of sheep that can be safely kept in the pen = [tex]\frac{478.15}{45}[/tex]
= 10.63
The number of sheep that can be safely kept in the pen is 10.
Jacob used an empty can for a project shown below the pills the label of the king in find the area of the label what is the approximate area of the canned label?
Answer:
B: 100.53 in²
Step-by-step explanation:
From the image of the can label shown, we can see that;
Height; h = 8 inches
Diameter; d = 4 inches
Thus, radius; r = d/2 = 4/2 = 2 inches
The can is a cylinder and the label covers only the curved surface area. Thus, formula for curved surface area of a cylinder is;
A = 2πrh
Thus;
A = (2π × 2 × 8)
A = 100.53 in²
Please help!! im confused
Answer:
8.5
Step-by-step explanation:
you cut them in half. when it says clicks per second it means per one second. so if you get 17 clicks in 2 seconds you just cut it in half.
help pls!! giving brainliest :)
Answer:
the answer is 5
Step-by-step explanation:
i hope its right if its not im so sorry plz dont rost me in the comments
Write the system of 4 linear inequalities graphed below.
Answer:
Answer:
y > 2x - 1
y ≤ 0.5x + 4
Step-by-step explanation:
solid line: (0,4) (-8,0)
m: (0-4)/(-8-0) = -4/-8 = 0.5
b: 4
y = mx + b y = 0.5x + 4
dotted line: (0,-1) (-2,-5)
m = (-5 - -1)/(-2-0) = 2
b = -1
equation: y = 2x - 1
System: y ≤ 0.5x + 4
y > 2x - 1
Step-by-step explanation:
A driver was going more then 15 miles per hour over the speed limit when he received a speeding ticket. If the driver's speed was 75 miles per hour, what was the speed limit, m, on the road where he was driving.
I need help with this ASAP!
Answer:
60
Step-by-step explanation:
You just subtract 75 - 15, and you get 60. I hope this helps :)
The price of a necklace was increased by 10% to £154.
What was the price before the increase?
Answer:
138.6
Step-by-step explanation:
154 x .9=138.6
Answer:
£15.4
Step-by-step explanation:
identify the quadratic equation for the graph below
Answer:
C. Y = [tex]x^{2}[/tex] + x - 6
Step-by-step explanation:
I'm not shure but I think thats the answer.
Calculate the radius if the circles given the Diameter.
d= 7.8
Consider the graph of the linear equation 2x - 5y = 10.
Answer:
The slope is [tex]\frac{2}{5}[/tex]
the y-intercept (0,-2)
the graph points is (5,2)
Step-by-step explanation:
11 1/2 + 4 5/8 = [?] [?]/[?]
Answer:
16 1/8
Step-by-step explanation:
23/2 + 4 5/8
23/2 + 37/8
129/8=
16 1/8 in simpliest form :))
i hope this helped Imao
I'm not sure but i think it's 16.125
Mrs. Harrison is 15 ounces of dark chocolate while baking. She used 3/5 of the chocolate to make some frosting and used the rest make brownies. how many ounces did she use to make brownies?
pls help pls help i will award brainliest.
Answer:
-24
Step-by-step explanation:
4a+8-a
a=-2
4(-2)+8-(-2)
-8+-16
=-24
:)
What’s the area of this following circle?
Answer:
The Answer is 113.04 which would simplify to 113
Step-by-step explanation:
3.14×6^2=113.04
If a snail crawls 14 inches in 2.5 hours, it will crawl Question Blank type your answer... inches in 3 hours.
Answer:
16.8 in
Step-by-step explanation:
Given data
DIstance= 14 in
time= 2.5 hours
Speed= 14/2.5
Speed= 5.6 in per hour
Hence for 3 hours
Distance= speed*time
Distance= 5.6*3
Distance= 16.8 in
Graph the inequality x>13.
Answer:
The graph is attached.
Step-by-step explanation:
The open circle is because the inequality sign is >. If the sign is > or <, the circle is plotted open. If the sign is [tex]\geq[/tex] or [tex]\leq[/tex], the circle is plotted closed.
The sign is greater than, so the arrow is pointed to the right (where the numbers are going up).
The circle is plotted between 12 and 14 because that is point 13, like the inequality says.
Hope it helps!
is this right as well?
Answer:
yes
Step-by-step explanation:
can i get brainliest please???
it would be very much appreciated
have a nice day :)
Noah has a coupon for 30% off at his favorite clothing store . He uses it to buy a hoodie . The regular price of a hoodie is $27. What did Noah pay for the hoodie?
Answer:
$18.90
Step-by-step explanation:
The way to do percentages is actually pretty easy.
since it's taking 30% of you are left with 70%. Take 70 and divide it by 100. This gives you .70
Now what you do is you take the price of the time and multiply it by the .70
So 27.00 * .7 = 18.90
So Noah paid 18.90
Jada was solving the equation
6
−
x
=
−
16
6−x
=−16. She was about to square each side, but then she realized she could give an answer without doing any algebra. What did she realize?
The solution Jada seeks does not require any algebra but can be solved to give; x = 22.
How to solve the equationWhen solving the given equation;
6 - x = -16The solution of the equation can be obtained by subtracting 6 from both sides of the equation so that we have;
-x = -16 -6-x = -22.Therefore, the value of x is; 22
Read more on equation;
https://brainly.com/question/16863577
What is the speed of Junior’s boat that travels 600 meters in 12 seconds?
Answer:50 meters per second
Step-by-step explanation:Divide 600 by 12 and whola, you get 12
Math help: Variables
I need help solving these two questions, explanations would be greatly appreciated.
Answer:
1. h = 11 cm
2. d = 220 km
Step-by-step explanation:
1. A = 1/2bh
Where,
A = 66 cm²
b = 12 cm
A = 1/2bh
66 = 1/2 * 12 * h
66 = 6h
h = 66/6
h = 11 cm
2. s = d/t
Where,
s = 110 km/h
t = 2h
s = d/t
110 = d/2
Cross multiply
110 * 2 = d
d = 220 km
please help im on a time limit
Answer:
Draw a line from coordinate (3,4) to the x axis and from that point to (0,6)
Rise= 4
Run= 3
slope= 4/3 but is negative
Erin earns a 12% commission on the furniture she sells. On Monday, she sold $4,500 worth of furniture. Which expression could erin use to calculate the amount of money she earned?
(Heeeeeeelp)
Answer:
He bought 10 laptops for x dollars each and then sold all of them for a total profit of 35%. ... A shirt cost $14.44 after a discount of 15% off the original price. ... Erin earns a 12% commission on the furniture she sells. ... Which expression could Erin use to calculate the amount of money she earned? Select one: A. 4,500(0.12).
Step-by-step explanation:
what is £42 in the ratio of 2:5
Answer:
12:30
Step-by-step explanation:
2 + 5 = 7
7u-> 42
1u -> 6
2u -> 12
3u-> 30
2/5x 2/8
can this be simplified
Answer:
O.4x 0.25
Step-by-step explanation:
It just is as a decimal