Answer:
x=4
Step-by-step explanation:
-(7-4x)=9
-7+4x=9
4x=16
x=4
Answer:
[tex]x=4[/tex]
Step-by-step explanation:
So we have the equation:
[tex]-(7-4x)=9[/tex]
Let's divide both sides by -1. This cancels out the negative on the left:
[tex]7-4x=-9[/tex]
Subtract 7 from both sides. The left cancels:
[tex]-4x=-16[/tex]
Divide both sides by -4. All the negatives will cancel:
[tex]x=4[/tex]
And we're done!
30 – 2а — 4) + За
Which expressions are equivalent?
Answer:
=2456
Step-by-step explanation:23456
1.4.AP-9
The temperature in some region of Alaska equals 12° F. Convert this temperature to Celsius.
12°F='c (Round to the nearest tenth of a degree as needed.)
Answer:
-11.1
12°F= -11.1°C
Sorry if I'm late to answering..
The temperature of Alaska in degree celsius will be -11.11°C.
What is unit conversion?To convert any unit into another is called a unit conversion.
In order to convert units, we need to care about their dimensions their dimension should not be changed.
For example, kilo gram to gram.
Given the temperature of Alaska 12° F.
Since we know,
°C = 5/9(°F - 32)
Given that.
°F → 12°F
So,
°C = 5/9(12 - 32)
°C = 5/9(-20)
°C = -11.11
Hence "The temperature of Alaska in degree celsius will be -11.11°C".
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Can someone please solve this 4x+4(x-6)=3(2x+4)
Answer:
x = 18
Step-by-step explanation:
4x+4(x-6)=3(2x+4)
distribute
4x+4x-24=6x+12
combine like terms
8x-24=6x+12
carry across equal sign
2x-24=12
carry across equal sign
2x=36
divide
x=18
Answer:
X = 18
Step-by-step explanation:
4x + 4(x -6) = 3(2x + 4)
4x + 4x -24 = 6x + 12
8x -24 = 6x + 12
+24 +24
8x = 6x + 36
-6x -6x
2x = 36
Divide 2x and 36 by 2
X = 18
The area of a circle is 201cm² . what is the diameter ?
The answer is 16 cm approx.
Diameter= 2[tex]\sqrt{a/pi}[/tex]
=>2[tex]\sqrt{201 / 22/7}[/tex]
=>2[tex]\sqrt{201*7/22}[/tex]
=>15.997.......
=> 16 approx
Hope this helps you!!
Answer:
The diameter of the circle is 16
Step-by-step explanation:
[tex]\pi = 3.14[/tex]
Area = [tex]\pi r^{2}[/tex] you will have to use this formula to find the radius
[tex]\pi r^{2} = 201[/tex] = [tex]3.14r^{2}=201[/tex] (divide 3.14 into both sides)
[tex]\frac{3.14r^2}{3.14} = \frac{201}{3.14}[/tex] cross out 3.14 leaves you with [tex]r^2[/tex] and divide 201/3.14= 64.01
[tex]r^2 = 64.01\\r = \sqrt{64.01}\\r = 8[/tex] square root 64.01 which equals 8
Diameter = [tex]2r[/tex] 2(8) = 16
To check answer use Area formula [tex]\pi (8)^{2}[/tex] = 201. 0619298
what examine the rotation. which best describes point D
Answer:
center of rotation
Step-by-step explanation:
If ray US is an angle bisector of ∠RUT, find m∠RUT. A. m∠RUT = 80° B. m∠RUT = 40° C. m∠RUT = 20° D. m∠RUT = 10°
Answer:
Answer: m<RUT=80
Step-by-step explanation:
took the test
If ray US is an angle bisector of ∠RUT, m∠RUT = 80°.
What is a bisector in the triangle?
The angle bisector of an angle of a triangle is a straight line that divides the angle into two congruent angles. The three angle bisectors of the angles of a triangle meet in a single point, called the incenter.
What is the angle bisector formula?According to the angle bisector theorem, PQ/PR = QS/RS or a/b = x/y. An angle bisector is a line or ray that divides an angle in a triangle into two equal measures.
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What is the angle of elevation of the sun when a pole 32.0 ft tall casts a shadow 45.0 ft long
As you can see in the first drawing, the vertical line represents the pole which is 32.0 ft long and the horizontal line represents the shadow casted by the pole which is 45.0 ft long. The angle θ, represents the angle of elevation of the sun.
We can solve this problem using trigonometric ratios, that is sine, cosine, and tangent. Remember SOH CAH TOA?
SOH
[tex]sin = \frac{opposite}{hypotenuse} [/tex]
CAH
[tex]cosine = \frac{adjacent}{hypotenuse} [/tex]
TOA
[tex]tan = \frac{opposite}{adjacent} [/tex]
In this case, we're going to use TOA since we are given the height of the pole which represents the line opposite the angle of elevation, and the length of the shadow of the pole which represents the line adjacent to the angle of elevation.
adjacent, a = 45.0
opposite, o = 32.0
So, to find the angle of elevation, refer to the second picture above.
A truck can be rented from company A for $130 a day plus $0.20 per mile. Company B charges $50 a day plus $0.60 per mile to rent the same truck. Find the number of miles in a day at which the rental costs for company A and company B
Answer:
200 miles
Step-by-step explanation:
Company A
Daily charge = $130Per mile = $0.20x miles per day = 130 + 0.2xCompany B
Daily charge = $50Per mile = $0.60x miles per day = 50 + 0.6xAssume x miles that makes same amount for both options, then:
130 + 0.2x = 50 + 0.6x0.6x - 0.2x = 130 - 500.4x = 80x = 80/0.4x = 200 milesThe sum of three numbers is 109. The second number is 4 times the first number and the third number is 8 less that the second number. What are the three numbers?
Answer:
I think the answers are 19, 17 and 76.
I am not sure...
Given the following formula, solve for t.
V = u + at.
A. t= a(v – u)
B. t = v-u/a
C. t=v+u/a
D. t =a(v + u)
Are angles 1 and 2 a linear pair? Yes or no.
please help. it’s about density
1. 4 g/mL
2. 2 g/mL
3. 5 mL
4. 400g
5. 25g
6. 2 cm^3
7. 2 g/cm^3
if iq scores are normally distrubuted with a mean over 100 and standard deviation of 17 and if the population of the world is 6, 575, 000,000 how many geniuses are there in the world today
Answer:jenlso helmaiv eksin
Step-by-step explanation:
A group of 11 people are going to the movies one Saturday. Adult tickets cost $12.50 each and child tickets cost $7.75 each. If the total cost for admission to the movies is $109.00, how many children attended the movie?
a.) 4
b.) 5
c.) 6
d.) 7
Answer: c=6
Step-by-step explanation: $12.50 x 5 adults = $62.50. $7.75 X 6 children = $46.50. $62.50 + $46.50 = $109
Which of the following numbers would appear first if we were listing the numbers in descending order?
What is the same value as the expression 7/5+2 1/4+1.6
Find the distance between the points (6, 9) and (0, 1).
Write your answer as a whole number or a fully simplified radical expression. Do not round.
units
Answer:
D= 10
Step-by-step explanation:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\d=\sqrt{(0-6)^2+(1-9)^2}\\d=\sqrt{(-6)^2+(-8)^2}\\d=\sqrt{(36)+(64)}\\d=\sqrt{100}\\d=10[/tex]
What is the completely factored form of xy - 4xły - 5y?
Four friends buy cinema tickets using this offer.
Cinema tickets
Buy 3 tickets and get a tickets free
They each pay £6.15
How much does a ticket cost
Answer:
Step-by-step explanation:
The cost of one ticket will be £8.20
Explanation
Suppose, the cost of one ticket is
As the offer says "buy 3 tickets and get a ticket free" , it means they actually need to pay for 3 tickets.
So, the total cost of 3 tickets
Each of four friends pay £6.15 , so the total amount they pay
=£6.15*4=£24.60
Thus, the equation will be .....
=3x=24.60
=x=24.60/3=8.20
So, the cost of one ticket will be £8.20
HELPP. In words, write the meaning of: √a+3
Answer:
square root of a plus 3
Step-by-step explanation:
5) Determine the Distance between (-3, 1) and (5,-6). Round your answer 10 points
to the nearest tenth. *
22
3
4
5
-2
0
-4
-2
-3
-4
-5
-6
it is 10.63
Step-by-step explanation:
Used a calculator
I don't know. can someone help please??
Answer:
what
Step-by-step explanation:
Answer:
3rd option
Step-by-step explanation:
__
PQ means the whole length of PQ, same goes to the others (QR and PR)
The first option means the angles P, Q and R
The second option means the points P, Q and R
The instructor had saved $3,500 and rents an apartment for $275 monthly. He believes the point (6, 1850) would be on the equation of the line. Is he correct? Explain how to check if a point is on a line. Please I need this right knowWrite a sentence using an adverb clause illustrating the following usage. contrast
Answer:
Sample Answer: Write the equation using slope and y-intercept in slope-intercept form, y = –275x + 3500. Then, substitute the x and y values of the point into the equation, 1850 = –275(6) + 3500. Simplify to see if both sides are equivalent. Yes, the instructor is correct because both sides are equivalent.
Step-by-step explanation:
Answer:Sample Answer: Write the equation using slope and y-intercept in slope-intercept form, y = –275x + 3500. Then, substitute the x and y values of the point into the equation, 1850 = –275(6) + 3500. Simplify to see if both sides are equivalent. Yes, the instructor is correct because both sides are equivalent.
Step-by-step explanation:
Erica has saved $2400.if she spends $45 per day then what is the first day that her balance will be $500 or less
Answer:
The 43rd day of spending $45.
Step-by-step explanation:
Let the number of days = x.
If she spends $45 per day, then in x days she spends 45x.
She starts with $2400, so 45x is subtracted from 2400.
2400 - 45x < 500
Subtract 2400 from both sides.
-45x < -1900
Divide both sides by -45. Remember to change the direction of the inequality sign when multiplying or dividing by a negative number.
x > 42.2
Answer: The first day is the 43rd day of spending $45.
Find the slope of the line parallel to the given line.
y= 2/5x+2
Slope:
[tex]\sf{\dfrac{2}{5}}[/tex]
Explanation:
Parallel lines have the same slope, so the slope of y = 2/5x + 2 will be the same as the slope of the line which is parallel to it.
The equation is written in slope-intercept form, aka y = mx + b, where m is the slope and b is the y-intercept.
In slope intercept, the slope is always the number that comes before x.
For this equation, the number in front of x is 2/5.
So, I come to the conclusion that the slope of the line parallel to y = 2/5x + 2 is 2/5.
Write the equivalent expression (5x-3x2)-(5x-2)×(10x+7x2)in standard form:
Answer:
-35x³ - 39x² + 25x
Step-by-step explanation:
Step 1: Write out expression
(5x - 3x²) - (5x - 2)(10x + 7x²)
Step 2: Distribute/Expand
5x - 3x² - (50x² + 35x³ - 20x - 14x²)
Step 3: Combine like terms
5x - 3x² - (36x² + 35x³ - 20x)
Step 4: Distribute negative
5x - 3x² - 36x² - 35x³ + 20x
Step 5: Combine like terms
-35x³ - 39x² + 25x
Answer:
WAIT standard .?
Step-by-step explanation:
Hi! I need help on this one. Hope there's someone willing to help!!
2 of 5 is a 40% chance
40% * 40 = 16
He should expect to be stopped 16 times.
6(m+2)+6m=-5(-7m-7) Solve for m.
Answer:
m = -1
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
m = -1
☽------------❀-------------☾
Hi there!
~
Let's solve your equation step-by-step.
[tex]6(m+2)+6m=-5(-7m-7)[/tex]
Step 1: Simplify both sides of the equation.
[tex]6(m+2)+6m=-5(-7m-7)[/tex]
[tex](6)^{(m)} + (6)(2)+6m= (-5)(-7m)+(-5)(-7)[/tex] (Distribute)
[tex]6m+12+6m=35m+35[/tex]
[tex](6m + 6m)+(12)=35m + 35[/tex] (Combine Like Terms)
[tex]12m + 12 = 35m + 35[/tex]
[tex]12m + 12 = 35m + 35[/tex]
Step 2: Subtract 35m from both sides.
[tex]12m + 12 - 35m = 35m + 35 - 35m[/tex]
[tex]-23m + 12 = 35[/tex]
Step 3: Subtract 12 from both sides.
[tex]-23m + 12 - 12= 35 - 12[/tex]
[tex]-23m = 23[/tex]
Step 4: Divide both sides by -23.
[tex]\frac{-23m}{-23} = \frac{23}{-23}[/tex]
[tex]m = 1[/tex]
❀Hope this helped you!❀
☽------------❀-------------☾
Use dimensional analysis to convert 9 milliliters to fluid ounces. Use 1 mL ≈ 0.034 fl oz.
Answer:
0.306 fl oz.
Step-by-step explanation:
9 mL * (0.034 fl oz / 1 mL) = 0.306 fl oz [the millilitres canceled out].
Hope this helps!
3. Solve : 16x + 2] > 1 2
Answer:
x > 5/8
Step-by-step explanation:
[16x+2] > 12
16x > 12 - 2
16x > 10
x > 10/16
x > 5/8
Answer:
Step-by-step explanation:
16x + 2 > 12
16x > 10
x > 10/16
x > 5/8