Answer:
7%
Step-by-step explanation:
The additional tax is $0.42, we just have to find how much percent the tax ($0.42) is of the original cost ($6.00).
To do this, we can use the following formula:
[tex]\frac{x}{y} = \frac{p}{100}[/tex]
Where x is the part (in this case, the tax ($0.42)), y is the whole (in this case, the original cost ($6.00)), and p being the percent (the tax rate in this case). We can replace the values in:
[tex]\frac{0.42}{6} = \frac{p}{y}[/tex]
We can cross multiply and simplify to find the tax rate:
[tex]0.42y=600\\ y=\frac{600}{0.42} \\ y=0.07[/tex]
We're not done yet! We still need to turn it to percent. But we can do this by just multiplying our result by 100:
[tex]0.07 * 100=7[/tex]
Place the percent sign and we are done.
Hope this helps.
how to sovle
(x+1/x)^2
[tex] (\frac{x + 1}{x} ) ^{2} \\ = \frac{ {(x + 1)}^{2} }{ {x}^{2} } \\ = \frac{ (x + 1)(x + 1) }{ {x}^{2} } \\ = \frac{ {x}^{2} + 2x + 1}{ {x}^{2} } [/tex]
Hope you could get an idea from here.
Doubt clarification- use comment section.
1. A hot air balloon 4s anchored to the ground by a 152-foot long
rope. The balloon hovers 132 feet above the ground. Which
statement is true?
(a) The angle the rope makes with the ground is about 30"
(B) The angle the rope makes with the ground is about 67
(C) The horizontal distance between the anchor and balloon is about 201 feet.
(D) The horizontal distance between the anchor and the balloon is about 75
foot,
19
How many planes appear in the figure?
Answer:
5
Step-by-step explanation:
plssssssssssssssssss
Answer:
1. RQP
2. QOP
Step-by-step explanation:
the answer for the first question is RQP and the answer for the second question is QOP
Answer:
i)PQO
ii)QOP
Step-by-step explanation:
David makes a pizza with 8 slices of equal size . He covers 5 of the 8 slices with pepperoni. What percentage of the pizza is covered with pepperoni
Answer:
5/8 * 100 = 62.5 %
Someone please help. How can I solve this question?
Answer:
∠ LKJ = 64°
Step-by-step explanation:
Since KJ = KL then the triangle is isosceles with the 2 base angles being congruent, that is
∠ J = ∠ L = 58° , then
∠ LKJ = 180° - 58° - 58° = 180° - 116° = 64°
2/7x9 in simplest form
Answer:
2/63
Step-by-step explanation:
I'm going to assume that the x is a multiplication symbol.
7 x 9 = 63
Therefore, the simplest form would be 2/63
How many Joules must be added to 45.2 g of iron to raise its temperature from
12.5 °C to 76.8°C?
Answer:
297 J
Step-by-step explanation:
The key to this problem lies with aluminium's specific heat, which as you know tells you how much heat is needed in order to increase the temperature of
1 g
of a given substance by
1
∘
C
.
In your case, aluminium is said to have a specific heat of
0.90
J
g
∘
C
.
So, what does that tell you?
In order to increase the temperature of
1 g
of aluminium by
1
∘
C
, you need to provide it with
0.90 J
of heat.
But remember, this is how much you need to provide for every gram of aluminium in order to increase its temperature by
1
∘
C
. So if you wanted to increase the temperature of
10.0 g
of aluminium by
1
∘
C
, you'd have to provide it with
1 gram
0.90 J
+
1 gram
0.90 J
+
...
+
1 gram
0.90 J
10 times
=
10
×
0.90 J
However, you don't want to increase the temperature of the sample by
1
∘
C
, you want to increase it by
Δ
T
=
55
∘
C
−
22
∘
C
=
33
∘
C
This means that you're going to have to use that much heat for every degree Celsius you want the temperature to change. You can thus say that
1
∘
C
10
×
0.90 J
+
1
∘
C
10
×
0.90 J
+
...
+
1
∘
C
10
×
0.90 J
33 times
=
33
×
10
×
0.90 J
Therefore, the total amount of heat needed to increase the temperature of
10.0 g
of aluminium by
33
∘
C
will be
q
=
10.0
g
⋅
0.90
J
g
∘
C
⋅
33
∘
C
q
=
297 J
I'll leave the answer rounded to three sig figs, despite the fact that your values only justify two sig figs.
For future reference, this equation will come in handy
q
=
m
⋅
c
⋅
Δ
T
, where
q
- the amount of heat added / removed
m
- the mass of the substance
c
- the specific heat of the substance
Δ
T
- the change in temperature, defined as the difference between the final temperature and the initial temperature of the sample
The key to this problem lies with aluminium's specific heat, which as you know tells you how much heat is needed in order to increase the temperature of
1 g
of a given substance by
1
∘
C
.
In your case, aluminium is said to have a specific heat of
0.90
J
g
∘
C
.
So, what does that tell you?
In order to increase the temperature of
1 g
of aluminium by
1
∘
C
, you need to provide it with
0.90 J
of heat.
But remember, this is how much you need to provide for every gram of aluminium in order to increase its temperature by
1
∘
C
. So if you wanted to increase the temperature of
10.0 g
of aluminium by
1
∘
C
, you'd have to provide it with
1 gram
0.90 J
+
1 gram
0.90 J
+
...
+
1 gram
0.90 J
10 times
=
10
×
0.90 J
However, you don't want to increase the temperature of the sample by
1
∘
C
, you want to increase it by
Δ
T
=
55
∘
C
−
22
∘
C
=
33
∘
C
This means that you're going to have to use that much heat for every degree Celsius you want the temperature to change. You can thus say that
1
∘
C
10
×
0.90 J
+
1
∘
C
10
×
0.90 J
+
...
+
1
∘
C
10
×
0.90 J
33 times
=
33
×
10
×
0.90 J
Therefore, the total amount of heat needed to increase the temperature of
10.0 g
of aluminium by
33
∘
C
will be
q
=
10.0
g
⋅
0.90
J
g
∘
C
⋅
33
∘
C
q
=
297 J
I'll leave the answer rounded to three sig figs, despite the fact that your values only justify two sig figs.
For future reference, this equation will come in handy
q
=
m
⋅
c
⋅
Δ
T
, where
q
- the amount of heat added / removed
m
- the mass of the substance
c
- the specific heat of the substance
Δ
T
- the change in temperature, defined as the difference between the final temperature and the initial temperature of the sample
In your case, aluminium is said to have a specific heat of
0.90
J
g
∘
C
.
So, what does that tell you?
Solve 5,964 ÷ 7 = ________. Use an area model to help you.
Answer:
The answer is 852 I think. Please tell me if this is correct.
Step-by-step explanation:
Subtract. Show complete procedure.
4m - 3
3m + 1
-----------
Answer:
m - 2Step-by step explanation:
4m - 3 - 3m + 1=> 4m - 3m - 3 + 1=> m - 2Conclusion:
Therefore, 4m - 3 - 3m + 1 equals m - 2.
Hoped this helped.
[tex]BrainiacUser1357[/tex]
Write an equation of a line that is perpendicular to y = 2/3 x + 8 and has a y-intercept of
2.
Answer in slope-intercept form
Answer:
y = -3/2x + 2
Step-by-step explanation:
Since you know it has a point at (0, 2) - the y intercept, put those values into the equation and solve. To be perpendicular it seems the reciprocal of the slope with the opposite sign, so 2/3 is the original slope, and -3/2 becomes the new slope.
y = 2/3x + 8 becomes
2 = -3/2(0) + b We substitute in the x and y values, but we have to figure out what the last number will be.
2 = 0 + b
b = 2
So put the whole equation together
y = -3/2x + 2
Given that △ABC is an isosceles triangle with AB⎯⎯⎯⎯⎯≅AC⎯⎯⎯⎯⎯ and AD⎯⎯⎯⎯⎯ bisecting ∠BAC, which of the following proves that ∠ABD≅∠ACD?
The isosceles triangle having an angle bisector [tex]\overline{AD}[/tex] forms two congruent triangles.
ΔBAD ≅ ΔCAD, therefore, ∠ABD ≅ ΔBAD, by CPCTCReasons:
The given parameters are;
ΔABC is an isosceles triangle.
[tex]\overline{AB}[/tex] ≅ [tex]\overline{AC}[/tex]
[tex]\overline{AD}[/tex] bisects ∠BAC
Therefore, the proof that ∠ABD ≅ ∠ACD is given as follows;
1. [tex]\overline{AB}[/tex] ≅ [tex]\mathbf{\overline{AC}}[/tex] (Given)
2. [tex]\overline{AD}[/tex] bisects ∠BAC (Given)
3. ∠BAD ≅ ∠CAD (Definition of angle bisector)
4. [tex]\overline{AD}[/tex] ≅ [tex]\mathbf{\overline{AD}}[/tex] (Reflexive property of congruency)
5. ΔBAD ≅ ΔCAD (Side Angle Side, SAS rule of congruency based on steps 1, 3 and 4)
6. ∠ABD ≅ ∠ACD (Congruent Parts of Congruent Triangle are Congruent, CPCTC)
Learn more about SAS rule of congruency here:
https://brainly.com/question/6422888
A group of friends wants to go to the amusement park. They have $180.50 to spend on parking and admission. Parking is $19.50, and tickets cost $23 per person, including tax. Write and solve an equation which can be used to determine pp, the number of people who can go to the amusement park.
equation:
answer p:
a.
The required equation is 23p + 19.50 = 180.50
Let p represent the number of people who can go to the amusement park.
Since the ticket costs $23 per person, the total amount paid for ticket is rate × number of person = $23 × p = 23p.
Since we pay $19.50 for parking, the total amount spent is T = 23p + 19.50
Since the total amount equals $180.50. T = 180.50
So, 23p + 19.50 = 180.50
The required equation is 23p + 19.50 = 180.50
b.
Solving 23p + 19.50 = 180.50, we have
23p = 180.50 - 19.50
23p = 161
p = 161/23
p = 7
So, the number of people who can go to the amusement park is 7.
Learn more about linear equations here:
https://brainly.com/question/24307397
a farm is sold for $457000, which gives a profit of 19%. Find the profit
Answer:
The profit is 86830
Step-by-step explanation:
To calculate percentage, just multiply the original number by the percent as a decimal. 457000x0.19=86830
Answer:
Profit: $73000
Step-by-step explanation:
Profit = Selling price (SP) - Cost price (CP)
First you need to find the CP
CP = (SP*100)/(100+Percentage profit)
SP= $457000
Percentage profit = 19%
CP= (457000*100)/(100+19)
CP= 45700000/119
CP= $384,033.6134
Profit = 457000-384,033.6134
Profit = $72966.3866
Profit rounded to the nearest 1,000 or the Thousands Place = $73,000
Hope this helps. Please give me the brainliest?
unit 5 relationships in triangles homework 1 triangle midsegments
Q10
∠1 = ∠5 = 180° - 144° = 36°∠2 = 56°∠3 = 180° - 56° = 124°∠4 = 144° - 56° = 88°∠5 = ∠1 = 36°Q11
∠1 = 35°∠2 = 180° - 35° = 145°∠3 = 90° - 35° = 55°∠4 = 180° - ∠5 = 180° - ∠3 = 180° - 55° = 125°∠5 = ∠3 = 55°David made $80,950 last year. If his income is decreased by 7.25%, what is his adjusted
income, Ai? (show equation).
HELPP PLEASEEE
Answer:
75081
Step-by-step explanation: multiply 80950 by 0.9275
100 students are interviewed to see which of biology chemistry or physics , they prefer 30 students are girls 16 of the girls like biology 9 of the boys prefer physics 2 out of the 34 who prefer physics are girls what percentage prefer biology
Well, it says that 34 kids like physics and since there is 100 students, we know 34% of the kids like physics. This means 66% like biology.
Find the coordinates of the points D (4,-4) and E (5,-5) after the transformation (x,y) →
(x+ 3. y -5)
D = (7, -9)
E = (8, -10)
hope this helps!
When trying to find the amount of interest you will pay if you borrow money, what three things
must you calculate? Think PRT.
O Partial amount, interest rate, time
O Principal, review, time
O Principal, interest rate, time
O Pay, rate, terms
1234567891011121314151617181920
Answer:
What's this question? Oh my gosh!
The triangles are congruent due to which criteria?
SAA
SAS
SSS
HL
Answer:
SAS is the answer
Step-by-step explanation:
Answer:
HL.
Step-by-step explanation:
Right triangles with the hypotenuse and one leg congruent
how to find the perimeter of a triangle with vertices
Answer:
P = A + B + C
Step-by-step explanation:
Essentially, just add the length of each side. The sum is the perimeter.
Hit brainliest if this was helpful :)
add each side
hope ithelps you
Please and thank youuuuuu! :)
We know the slope intercept formula. Using the formula, we can find the slope.
Formula: y = mx + bGiven equation: y = 4x - 6m = Slopeb = y-interceptNow, let's compare both equations to find out what is the slope.
=> y = mx + by = 4x - 6
Conclusion:We can clearly see that m is replacing with 4. That basically means the slope is 4.
Hoped this helped.
[tex]-BrainiacUser1357-[/tex]
Please help! I’m so confused.
Answer: M = 12.50
Step-by-step explanation:
Simplify the expression: 4 + 5(2x - 3) - 6x *
16x + 19
-16x -11
4x -9
4x + 9
Step-by-step explanation:
4+5 (2x-3)-6x
9 (2x-3)-6x
18x-27-6x
12x-27
Answer:
[tex] \sf \: 4x - 11 [/tex]
Step-by-step explanation:
Given expression,
→ 4 + 5(2x - 3) - 6x
Let's simplify the expression,
→ 4 + 5(2x - 3) - 6x
→ 4 + 10x - 15 - 6x
→ (10x - 6x) + (4 - 15)
→ (4x) + (-11)
→ 4x - 11
Hence, the answer is 4x - 11.
Which ordered pair is the solution set
for 3x + 5y < 10?
Answer:
Slope is -3/5
Slope intercept form: y<-3/5x+2
Step-by-step explanation:
Your going to have a shaded region, with a dashed line
the y intercept will be (2)
the x intercept will be (3.333,0)
Tim is 40 lbs less than his bother. If together they weigh 220, how much does Tim weigh?
Answer: Tim weighs 90 lbs and his brother weighs 130 lbs
Edward deposited $5,500 into a savings account 5 years ago. The simple interest rate is 3%. How much money Need ans
Answer:$1375 in interest and $6875 total.
Step-by-step explanation:
A television set costs $4500 cash. When bought on hire-purchase, a deposit of $450 is
required, followed by 12 monthly payments of $400. How much is saved by paying cash?
Answer:
$750
Step-by-step explanation:
did the problem
What is the value of x + y for the system of equations y= 2x - 2 and y= 4x + 6?
Answer:
x= -1
y= 2
Step-by-step explanation:
Notice that when x = 0 the value of y is 2/1 so this line "cuts" the y axis at y= 2
y-intercept = 2/1 = 2
When y = 0 the value of x is 1/-1 Our line therefore "cuts" the x axis at x= -1
x-intercept = 2/-2 = 1/-1 = -1