Answers
Related Questions
At a certain game at a school carnival, people won 42 small prizes and 18 large prizes. For every _____ small prizes won, there were _____ large prizes won.
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Answer:
For every 7 small prizes won, there were 3 large prizes won.
ratio : 42:18 or 7:3
As 42/18 is the same as 7/3 For every 7 small prizes won, there were 3 large prizes won.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
Given, At a certain game at a school carnival, people won 42 small prizes and 18 large prizes.
Now, 42/18 = 21/9 = 7/3.
∴ For every 7 small prizes won, there were 3 large prizes won.
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Distribute the expression (u - 6) x 4.
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Answer:
4u - 24
Step-by-step explanation:
(u-6)*4
Distribute
4*u - 4*6
4u - 24
2−(−4)+3+(−6)−(−2)2, minus, left parenthesis, minus, 4, right parenthesis, plus, 3, plus, left parenthesis, minus, 6, right parenthesis, minus, left parenthesis, minus, 2, right parenthesis.
Answers
Answer: 7
Step-by-step explanation:
2−(−4)+3+(−6)−(−2)2
solution:
– x – = +
– x + = –
= 2−(−4)+3+(−6)−(−2)2
= 6 + 3 + ( – 6) – ( 2 ) 2
= 9 + ( –6 ) – ( –2 ) 2
= 3 – (–2)2
= 3 – ( –4 )
= 7
To solve any expression the BODMAS priority rule is applicable. Thus, the solution of the expression is 7.
The given expression is [tex]2-(-4)+3+(-6)-(-2)2[/tex]
Apply the BODMAS priority rule to the above expression.
To set the priorities of mathematical operations, the BODMAS is applied. BODMAS rule can be explained below:
B stands for brackets.
O stands for of, and or terms.
D stands for divide.
M for multiply.
A for addition.
S for subtraction.
Therefore, apply the BODMAS and solve the expression further.
[tex]\begin{aligned}2-(-4)+3+(-6)-(-2)2&=2-(-4)+3+(-6)-(-4)\\&=2+4+3-6+4\\&=7\end{aligned}[/tex]
Thus, the solution of the expression is 7.
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help me with this question please
Answers
Answer:
the answer is 27
Step-by-step explanation:
A ball is kicked with an initial height of 0.75 meters and initial upward velocity of 22 meters/second. This inequality represents the time, t, in seconds, when the ball’s height is greater than 10 meters.
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Complete Question:
A ball is kicked with an initial height of 0.75 meters and initial upward velocity of 22 meters/second. This inequality represents the time, t in
seconds, when the ball's height is greater than 10 meters.
-4.9t² + 22t + 0.75 > 10
The ball's height is greater than 10 meters when t is approximately between __ and __ seconds
Answer:
The ball's height is greater than 10 meters when t is approximately between 0.47 and 4.02 seconds
Step-by-step explanation:
Given
[tex]-4.9t\² + 22t + 0.75 > 10[/tex]
Required
Solve the inequality
[tex]-4.9t\² + 22t + 0.75 > 10[/tex]
Subtract 10 from both sides
[tex]-4.9t\² + 22t + 0.75 - 10> 10 - 10[/tex]
[tex]-4.9t\² + 22t + -9.25> 0[/tex]
Solve using quadratic formula
[tex]t = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}[/tex]
In this case;
a = -4.9; b = 22; c = -9.25
[tex]t = \frac{-22 \± \sqrt{22^2 - 4 * (-4.9) * (-9.25)}}{2 * -4.9}[/tex]
[tex]t = \frac{-22 \± \sqrt{484 - 181.3}}{-9.8}[/tex]
[tex]t = \frac{22 \± \sqrt{484 - 181.3}}{9.8}[/tex]
[tex]t = \frac{22 \± \sqrt{302.7}}{9.8}[/tex]
[tex]t = \frac{22 \± 17.398}{9.8}[/tex]
Split
[tex]t = \frac{22 + 17.398}{9.8}[/tex] or [tex]t = \frac{22 - 17.398}{9.8}[/tex]
[tex]t = \frac{39.398}{9.8}[/tex] or [tex]t = \frac{4.602}{9.8}[/tex]
[tex]t = 4.02[/tex] or [tex]t = 0.47[/tex]
Convert to inequality;
[tex]0.47 < t < 4.02[/tex]
Hence;
The ball's height is greater than 10 meters when t is approximately between 0.47 and 4.02 seconds
Answer:
0.47 and 4.02
Step-by-step explanation:
Edmentum/Plato
what is the value of x in the equation 6(x+1)-5x=8+2(x+1)
Answers
Answer:
it is x=-4
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Help me find the slopes of these please.
Answers
Slope formula: y2-y1/x2-x1
Part one:
-7-4/-7-(-7)
-11/0
Since the denominator is 0, the slope is undefined.
Part two:
-9-(-9)/2-(-5)
0/7
Since the numerator is 0, the slope is 0.
Best of Luck!
Problem 1
Use the slope formula to get
m = (y2 - y1)/(x2 - x1)
m = (-7 - 4)/(-7 - (-7))
m = (-7 - 4)/(-7 + 7)
m = -11/0
The result is undefined as we cannot divide by zero.
This line is vertical and all vertical lines have undefined slopes. This happens when both points have the same x coordinate.
Answer: Undefined=========================================================
Problem 2
Use the slope formula again, just with different values of course
m = (y2 - y1)/(x2 - x1)
m = (-9 - (-9))/(2 - (-5))
m = (-9 + 9)/(2 + 5)
m = 0/7
m = 0
In contrast to the previous problem, we can have 0 in the numerator. Dividing 0 over any nonzero value leads to 0.
This line is horizontal as both y coordinates are the same value. All horizontal lines have a slope of 0. You can think of it like
slope = rise/run = 0/1
rise = 0 means we don't move up or down
run = 1 means we move to the right 1 unit
Answer: 0arleen has a gift card for a local lawn and garden store. she uses the gift card to rent a roller for 4 days. it cost $17 per day to rent the tiller she also buys a rake for $5. find the change to the value of her gift card
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Answer:
We use negative values for the money Arleen spends.
a) We determine the change to the value on her gift card:
4(-35)+(-9)= -140+(-9)=-149
b) We determine the amount on money she has left on the gift card after renting the tiller and buying the rake:
200+(-149)=51
Since she has got $51 on her gift card and a wheelbarrow is $50 she is able to buy it:
51>50
RESULT
a) -$149 less b) yes
Step-by-step explanation:
Please solve!!!!!!!!!!!
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Do the ratios 19/8 and 5/4 form a proportion?
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============================================================
Explanation:
Your teacher is effectively asking "are the fractions 19/8 and 5/4 equal?"
Let's assume for now that they are. So we have 19/8 = 5/4
To check if that is a true equation, let's cross multiply
19/8 = 5/4
19*4 = 8*5
76 = 40
The last equation is not true, so the first equation is also not true. The ratios are not in proportion.
---------------------------
Alternative method:
Instead of cross multiplying, we can get all the fractions to have the same denominator. The LCD (lowest common denominator) of the two given fractions is 8. Let's turn 5/4 into a fraction with 8 in the denominator.
We'll multiply top and bottom by 2 to get 5/4 turning into 10/8
Now we're asking "are 19/8 and 10/8 the same?" in which the answer is "no they are not the same". The numerators 19 and 10 are different. The fraction 19/8 is larger than 10/8. So 19/8 is larger than 5/4.
---------------------------
2nd Alternative method:
Use your calculator to see that
19/8 = 2.375
5/4 = 1.25
The decimal values should be the same if the fractions were equal, but they are not. This is a very quick way to compare two fractions.
Answer:
no
Step-by-step explanation:
because they are not equivalent to each other.
Can someone help me with this simple math problem, I’m a little confused on what’s the correct answer. I will mark you brainliest.
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Answer:
Its irrational because pi is a repeating number with no pattern.
UwU hope this helps
First correct answer will get braniley
Answers
Answer:
The first one
Step-by-step explanation:
According to definition of proportion, the correct statement is,
⇒ AC / BC = DF / EF
What is mean by Triangle?A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
We have to given that;
⇒ Δ ABC ≅ Δ EFD
Now,
Since, We have;
⇒ Δ ABC ≅ Δ EFD,
Hence, By definition of congruency, the ratio of there corresponding sides are equal.
So, We get;
⇒ AC / BC = DF / EF
Thus, ''Option 3'' is true.
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find the endpoint of the segment with endpoint (4, 12) and midpoint (-1, 13)
Answers
Answer:
(-6,14)
Step-by-step explanation:
We are given one endpoint and the midpoint, so we have to figure out how far apart these two points are:
(4,12) and (-1,13)
First, we take the x values because these two points are using the (x,y) pattern.
How far away are 4 and -1? The answer is 5.
How far away are 12 and 13? Only 1
If we start at the endpoint (4,12) and go to the midpoint at (-1,13), we go 5 to the left. That means we need to go 5 more spaces to the left to get to the other endpoint. The first part of our answer is -6, which is 5 to the left of -1.
Doing the same thing for the y values now, to get from 12 to 13 we go up 1. So we have to go up one more to find the y value of the other endpoint. If you are at 13 and you go up one, you are at 14.
is √324 rational, irrational, an integer, or a natural or whole number
Answers
Answer:
wHOLE number
Step-by-step explanation:
IT is a whole number
Y is between X and Z. T is
between Y and Z. If XZ = 90,
YT = 22, and XY = TZ, what is
XT?
Answers
Answer:
xt=56
Step-by-step explanation:
90-22=68
68/2=34
xy=34
tz=34
22+34=56
xt=56
Write as a fraction and simplify. (use the symbol / for your answer)
0.23333...
I
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Answer:
23/99
Step-by-step explanation:
0.23 is x.
Because x is recurring in two decimal places, we will multiply it by 100.
100x=23.23
Then we subtract.
100x-x=23.23-0.23
99x=23
x=23/99
the sum of 9 and 2 times the number d
Answers
Answer:
(9+2)d
Step-by-step explanation:
The sum of 9+2
Times the variable, d
You went to Disney World by car. The trip there took 6 hours. On the way home, people were evacuating for a possible hurricane so your speed decreased by 20 m/hr and it took 10 hours to get home. How fast was the car going on the way there? How fast was it going on the way back home?
Answers
Answer:
a) on the way there, the speed = 50 m/hr
b) on the way back home, speed = 30 m/hr
Step-by-step explanation:
[tex]speed (s) = \frac{distance(d)}{time(t)} \\distance = speed\ \times\ time[/tex]
on the way to Disney land:
distance = d
speed = s
time = t = 6 hours
d = s × t
d = s × 6
d = 6s - - - - - (1)
On the way back:
speed decreased by 20m/hr
This means that s₂ = (s - 20)m/hr
time = t₂ = 10 hours
∴ d = s₂ × t₂
d = (s - 20) × 10
d = 10s - 200 - - - - (2)
Note that the distance is the same to and from disney land, therefore, equation (1) equals equation (2)
∴ 6s = 10s - 200
collecting like terms:
10s - 6s = 200
4s = 200
∴ s = 200 ÷ 4
s = 50 m/hr
Therefore on the way there, the car was moving at a apeed of 50m/hr
speed on the way back home (s₂) = (s - 20) m/hr
∴ s₂ = 50 - 20
s₂ = 30 m/hr
Therefore on the way back home the speed was 30 m/hr
Please answer this it's confusing
Answers
Answer: Approximately 1336.50301206033 square cm
=======================================================
Explanation:
If we know the three side lengths of a triangle, then we can use Heron's formula to get the area
Heron's formula is
[tex]A = \sqrt{S(S-a)(S-b)(S-c)[/tex]
with S being the semiperimeter, or half the perimeter, so [tex]S = \frac{a+b+c}{2}[/tex]. We add up all three sides and divide by 2.
----------------
The smaller triangle has side lengths of a = 19, b = 40, c = 41. So we get a semiperimeter of S = (a+b+c)/2 = (19+40+41)/2 = 50
Plug this along with the a,b,c values to get an area of...
[tex]A = \sqrt{S(S-a)(S-b)(S-c)}\\\\A = \sqrt{50(50-19)(50-40)(50-41)}\\\\A = \sqrt{139500}\\\\A \approx 373.496987939661\\\\[/tex]
which is approximate
-----------------
Do the same for the larger triangle as well
S = (a+b+c)/2 = (19+180+181)/2 = 190
[tex]A = \sqrt{S(S-a)(S-b)(S-c)}\\\\A = \sqrt{190(190-19)(190-180)(190-181)}\\\\A = \sqrt{2924100}\\\\A = 1710\\\\[/tex]
Interestingly enough, we get an exact area value this time as opposed to some approximation.
-----------------
The difference between the two results is the area of the shaded region
1710 - 373.496987939661 = 1336.50301206033
This is approximate since the first result was approximate.
Answer:
K = 1710 cm^2 - K = 373.497 cm^2 = 1337 cm^2
Step-by-step explanation:
Why don't you just look for the whole area and deduct the non-shaded area?
Total
Sides:
a = 180 cm
b = 181 cm
c = 19 cm
Angles:
A = 83.9744 °
B = 90 °
C = 6.02558 °
Other:
P = 380 cm
s = 190 cm
K = 1710 cm^2
r = 9 cm
R = 90.5 cm
________________________
Non shaded area:
Answer:
Sides:
a = 40 cm
b = 41 cm
c = 19 cm
Angles:
A = 73.519 °
B = 79.3849 °
C = 27.0961 °
Other:
P = 100 cm
s = 50 cm
K = 373.497 cm^2
r = 7.46994 cm
R = 20.8569 cm
where:
A = angle A
B = angle B
C = angle C
a = side a
b = side b
c = side c
P = perimeter
s = semi-perimeter
K = area
r = radius of inscribed circle
R = radius of circumscribed circle
Apply the distributive property to rewrite 3(2-b).
Answers
Answer:
3·2 - 3·b = 6 - 3b
Step-by-step explanation:
You "distribute" the 3 over the 2 and the -b.
please help me I dont know how to find the domain and range of this one
Answers
Range: (-∞, ∞)
Hope that helps!
A triangle with vertices (−2, 3), (5, 4), and (−1,−1) is translated using the rule (x, y)→(x−3, y+4). What are the coordinates of the image?
Answers
Answer:
(-6,7) (2,8) (-4,3)
Step-by-step explanation:
Use fundamental identities and/or the complementary angle theorem to find the exact value of the given expression. Do not use a calculator. sec234°−tan234°
Answers
Answer:
1Step-by-step explanation:
Given the expression sec²34°−tan²34°, to get the exact value using the fundamental identities and/or the complementary angle theorem, we will apply the trigonometry identity
From sin²θ+cos²θ = 1
Divide both sides of the expression by cos²θ
sin²θ/cos²θ+cos²θ/cos²θ = 1/cos²θ
tan²θ+1 =sec²θ
Since sec²θ= tan²θ+1, hence sec²34°= tan²34°+1... 1
Substituting equation 1 into the expression given in question we will have;
sec²34°−tan²34°
= (tan²34°+1)-tan²34°
collect like terms
= tan²34°-tan²34°+1
= 1
Hence the exact value of the expression sec²34°−tan²34° is 1
Crab boats require 102 gallons of oil to run their
engines properly. How much oil does that equal in quarts?
Answers
Answer:
408 quarts
Step-by-step explanation:
Maria’s hard drive holds 1.0 ×10^6 megabytes of data. Larry has two hard drives, one that holds 5.1 × 10^5 megabytes of data and one that holds 7.7 × 10^5 Which statement is true? A) Maria can store more data than Larry because 10^6 > 10^5 B) Larry can store more data than Maria because 5.1 + 7.7 = 12.8 and 12.8 > 1.0 C) Larry can store more data than Maria because the sum of his hard drive space is 1.28 ×10^5 D) Larry can store more data than Maria because the sum of his hard drive space is 1.28 ×10^6
Answers
Answer:
D
Step-by-step explanation:
when you add 5.1 and 7.7 together it would be 12.8 but you have to move the decimal to the left again since it has more than one number to the left then the ^5 would turn into ^6 and 1.28x10^6 is 1,280,000 and the other is only 1,000,000
Answer:
D
Step-by-step explanation:
There are 216 black sheep and 357 white sheep in a field. How many sheep are in
the field?
563
562
3
573
572
My Progress >
Answers
Answer:
The answer is 573 this is correct
HELPP
Solve the equation 15+25=4+6x
Answers
Answer:
x=6
Step-by-step explanation:
Answer: x=6
Explanation:
1. Add: 15+25=40
2.Subtract 4 from each side: 40=4+6x
3.Divide by 6: 36=6x
4. x=6
3x – 7y=9; x= -1,0, 1
Solve the equation for y.
Answers
Answer:
Answers in the pic
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask =)
Tell me all the properties of algebra
Answers
Answer:
Commutative Property of Addition.- 2 + 3 = 3 + 2 Commutative Property of Multiplication.- ex. 5 × 7 = 7 × 5 Associative Property of Addition.- ex.(2 + 3) + 6 = 2 + (3 + 6) Associative Property of Multiplication.- ex. (7 × 3) × 10 = 7 × (3 × 10) Distributive Properties of Addition Over Multiplication- ex. 2 × (2 + 8) = 2 × 2 + 2 × 8 (2 + 8) × 10 = 2 × 10 + 8 × 10The reciprocal of a non zero real number a is 1/a.- ex. reciprocal of 5 is 1/5 and 5 × (1/5) = 1Step-by-step explanation:
Micheal just moved here from Chicago. Micheal has red hair, therefore people from Chicago have red hair
Is this Inductive reasoning or Deductive reasoning?
Answers
Answer:
inductive
Step-by-step explanation:
Inductive reasoning is based on generalization, and making conclusions without hard evidence. If Micheal has red hair and is from Chicago, inductive reasoning draws the conclusion that everyone in Chicago has red hair. Deductive reasoning would be predicting that everyone in Chicago has red hair, and then testing it to see if you are right.