Answer:
The answer is below
Step-by-step explanation:
Let the money charged to wrap a small gift be $x and the money charged to wrap a large gift be $y. The cost of wrapping 14 small gifts and 15 large gifts is $205, It can be represented by the equation:
14x + 15y = 205 (1)
Also, the cost of wrapping 47 small gifts and 45 large gifts is $640. It can be represented by the equation:
47x + 45y = 640 (2)
Solving equation 1 and equation 2 simultaneously. Multiply equation 1 by 3 and subtract from equation 2:
5x = 25
x = 25/5 = 5
x = 5
Put x = 5, in equation 1 and solve:
14(5) + 15y = 205
15y + 70 = 205
15y = 205 - 70
15y = 135
y = 135 / 15
y = 9
This means that the money charged to wrap the small gift is $5 and to wrap the large gifts is $9
A train starts at Omaha at 2 pm and heads for Reedley, 750 km away. At the same time, a train leaves Reedley and heads for Omaha at 85 km per hour. If the trains meet at 5 pm, what is the rate of the first train
Answer:
250 km per hour
Step-by-step explanation:
In order to find the rate of the first train, we need to know that the distance between Omaha and Reedly is 750 km away and that it will move at 2 pm and arrive at the location at 5 pm. So, first subtract the hours from 5 to 2. 5 - 2 = 3
The train would arrive in 3 hours.. so we substitute 3 into the number of hours.
Distance = 750
km (kilometers per hour) = ?
Hours = 3
Now we should substitute the number values into the equation, it should look like this: 750 = km(3)
3 multiplied by the varible will be 3km because there is no coefficient for km.
750 = 3km
Then, we divide 3 by both sides to make the 3 into a one for km.
750 ÷ 3 = 3km ÷ 3
250 = km
The rate of first train is 165 mph.
What is Speed- Distance?Speed = Distance/Time Distance = Speed X Time, Time = Distance / Speed.We can frame the situation as
Distance Rate Time
First train x 3
Second train 85 3
Now, using Distance= Speed x time
Distance Rate Time
First train 3x x 3
Second train 255 85 3
So, the equation is
3x+ 255 = 750
3x = 750 -255
3x =495
x= 165
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Which graph represents this system of inequalities? y > x + 3 y ≤ 5x − 1
Answer:
it should be the second one
Step-by-step explanation:
the only reason i kno this is because one side always has to be white
hope this helps
sorry if its wrong
the last graph i personally think this because of answer i got using desmos when i put in this problem. ( make sure the answer you click matches the last graph on this question i don't want you to get an incorrect answer because you didn't pay attention)
Find the measure of a
A. 40
B. 25
C. 50
D. 12.5
Answer:
c because it will be half of it meaning you have to multiply rhem
The angle at the center subtend by the chord of the circle will be 50°. Then the correct option is C.
What is a circle?It is the center of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
The angle that the very same arc subtends at any point around the circle's periphery is the double of the angle that same arc subtends at the center.
The angle at the periphery is 25°.
Then the angle at the center of the circle will be double of the angle subtend at the periphery.
Central angle = 2 × 25°
Central angle = 50°
The angle at the center subtend by the chord of the circle will be 50°.
Then the correct option is C.
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Nikki works at a store that sells consumer electronics. She earns $12 per hour, plus a commission of 5% of her total sales amount each day. Nikki worked 8 hours on Saturday. Including her commission, Nikki earned a total of $139 on Saturday. Which equation can be solved for x, Nikki’s total sales amount in dollars on Saturday?
Answer:
See below.
Step-by-step explanation:
So, Nikki earns $12 per hour.
And she also earns a 5% or 0.05 commission of her total sales each day.
On Saturday, she worked eight hours and she earned $139. In other words, she earned 8(12) or $96 from working her hours and another $43 (139-96) from her commission.
Thus:
[tex]139=96+0.05x[/tex]
Where x represents Nikki's total sales on Saturday.
Further notes:
To solve, subtract 96 from both sides and divide by 0.05:
[tex]139=96+0.05x\\43=0.05x\\x=\$860[/tex]
Thus, her total sales that day were $860.
lf x+1/x=12 then find the value of x3+1/x3
Solve for u.
4u²+3=-8u
If there is more than one solution, separate them with commas.
If there is no solution, click on "No solution."
Answer:
u = [tex]-\frac{1}{2}[/tex] ; u = [tex]-\frac{3}{2}[/tex]
Step-by-step explanation:
4u² + 3 = -8u
4u² + 3 + 8u = -8u + 8u (add 8u both sides)
4u² + 8u + 3 = 0 simplify
using quadratic equation:
- 8 ± √ (8² - 4 * 4 *3)
u = ------------------------------
2 * 4
u = [tex]-\frac{1}{2}[/tex] ; u = [tex]-\frac{3}{2}[/tex]
Mrs. Haddox is mailing a package that weighs 18.5 pounds. The post office charges by the ounce to mail a package. How much does the package weigh in ounces? 1 pound (lbs) = 16 ounces (oz) I GIVE BRAINLIEST PLZ
Answer:
296 ounces
Step-by-step explanation:
I used the formula "Multiply the mass value by 16"
Hope this helps:)
Answer:
296 is the total ounces it weighs
Step-by-step explanation:
Solve the Equation. 20x + 12 ≥ 14x + 30 A. x ≥ 7 B. x ≤ 7 C. x ≥ 3 D. x ≤ 3
Answer:
x≥3
Step-by-step explanation:
Treat the ≥ symbol like it is an equals sign. First, subtract 14x from each side to get 6x+12≥30. Then, Subtract 12 from each side to get 6x≥18. I will let you solve the rest :)
Answer:
[tex]\huge\boxed{C.\ x\geq3}[/tex]
Step-by-step explanation:
[tex]20x+12\geq14x+30\qquad\text{subtract 12 from both sides}\\\\20x+12-12\geq14x+30-12\\\\20x\geq14x+18\qquad\text{subtract}\ 14x\ \text{from both sides}\\\\20x-14x\geq14x-14x+18\\\\6x\geq18\qquad\text{divide both sides by 6}\\\\\dfrac{6x}{6}\geq\dfrac{18}{6}\\\\\boxed{x\geq3}[/tex]
Does this equation have one, many, or no solutions? [tex]2+4(3-4x)=5x+9[/tex] If one, what is the value of 'x'? Show work please.
Answer: This equation has one solution.
Steps:
2+4(3-4x) = 5x +9
First, we need to distribute to the terms inside the parentheses.
4 * 3 = 12 and 4 * -4= -16x
Our equation now looks like this:
2 + 12 - 16x = 5x + 9
We can now combine like terms. We have 2 like terms that we can combine:
2 + 12 + = 14
Our equation now looks like this:
-16x + 14 = 5x + 9
We can now use inverse operations to get rid of 5x. The inverse operation for addition is subtraction; so we subtract 5x on both sides. Remember, our goal is to isolate the x.
-16x + 14 = 5x + 9
-5x -5x
The fives cancel out. Our equation now looks like this:
-21x + 14 = 9
We can now use inverse operations to get rid of the 14:
-21x + 14 = 9
- 14 -14
The fourteens cancel out. Our equation now looks like this:
-21x = -5
Last step! Now we use inverse operations to isolate the x. -21 is being multiplied by x; the inverse operation for multiplication is division.
-21x/-21 = and -5/-21 = 5/21
x is equal to 5/21.
Hope this helps!
Answer:
-5x + -5 + 5x-.1
Step-by-step explanation:
what is the sum and product of x^2+12x+32=0? pls help me
Answer:
Sum= -12
Product=32
Step-by-step explanation:
[tex]x^2+12x+32=0[/tex]
By factorization, we get
[tex]x^2+4x+8x+32=0\\x(x+4)+8(x+4)=0\\(x+4)(x+8)=0\\[/tex]
Therefore, the roots of the equation are = -4,-8
Sum of the roots =[tex]\alpha+\beta =\frac{-b}{a}[/tex]
[tex]\alpha +\beta[/tex]=[tex]-8-4=-12[/tex]
Product of the roots=[tex]\alpha \beta =\frac{c}{a}[/tex]
[tex]\alpha \beta =8*4=32[/tex]
Round the number 817.0863 to the nearest:
(a) hundreds
(b) hundredths
(C) 3.d.p
(d) 4 s.f
(e) Whole number
Answer:
(a) hundreds = 817
(b) hundredths = 817.09
(c) 3 d.p = 817.086
(d) 4 s.f. = 817.1
(e) whole number = 817
Two less than a number and five is 12 less than the number itself
Answer: x - 2 + 5 = x - 12
Step-by-step explanation:
At first I was confused. Then I read the question again and translated it.
Less than translated means - 2.
A number, aka X.
and means plus(+).
when you put that together you get,
x - 2 + 5.
The next step is to translate to second part of the equation.
Is means equals(=).
So far we have: X - 2 + 5 = 12.
This is where I got confused...
After solving that peice, we have the words; " 12 less than the number it's self. I wasn't sure if 2 x's could be in the same equation. Now I know they can.
Above, we established that 'a number' is x.
Now, it's talking about that number again because it says; "The number itself." At first, I thought it was talking about 12 - 12! Then I realized that it's not.
The new equation, after understanding that in the second piece isn't 12 - 12, would be none other than,
x - 2 + 5 = 12 - x
I hope this helps!!
Answer:
Step-by-step explanation:
Twelve less than the one-fifth of a number is-7
factor the expression: -45x +40 expand the expression: 4w + 9( -6 - 3w)
Answer:
[tex]\large \boxed{\mathrm{view \ explanation}}[/tex]
Step-by-step explanation:
-45x + 40
Factor out 5 from the expression.
5(-9x) + 5(8)
Take 5 as a common factor.
5(-9x + 8)
4w + 9( -6 - 3w)
Expand brackets.
4w + 9(-6) + 9(-3w)
4w - 54 - 27w
Combine like terms.
4w - 27w - 54
-23w - 54
Answer:
Factor the expression
[tex] - 45x + 40 \\ = - 5(9x + 8)[/tex]
Expand the expression
[tex]4w + 9( - 6 - 3w) \\ 4w - 54 - 27w \\ = - 23w - 54[/tex]
hope this helps
brainliest plz..
1. Observa la imagen. Luego, responde las preguntas
.
a. ¿Qué molécula representa?
4.89 gallons of milk is sold for $12.79. If you have $21.44 in your wallet. How many
gallons of milk you can buy?
Answer:
You can buy 8.18 gallons of milk.
Step-by-step explanation:
12.79/4.89 = 2.62
21.44/2.62 = 8.18
Eighty percent of adults drink coffee and seventy percent drink tea. What is the smallest possible percent of adults who drink both coffee and tea?
Answer:
50%
Step-by-step explanation:
Given that Eighty percent ( 80%) of adults drink coffee and seventy ( 70%) percent drink tea.
Let the percent of the adults that drink coffee and tea be y
The total percentage of adults = 100
80 - y + y + 70 - y = 100
150 - y = 100
- y = 100 - 150
Y = 50.
Therefore, the smallest possible percent of adults who drink both coffee and tea is 50 %
A Simpler Answer:
Add together the probabilities.
80%+70%=150%
Therefore we overcounted 50 percent, so the least amount possible is [tex]\boxed{50\%}[/tex]
How do you know if two line segments are parallel?
A. The slope of one is the negative of the slope of the other.
OB. Their slopes are equal.
C. Their slopes are reciprocals.
D. Their slopes are negative reciprocals.
Answer: B Their slopes are equal.
Step-by-step explanation:
Two line segments are parallel if and only if their slopes are equal.
Option B is the correct answer.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
Two line segments are parallel if and only if their slopes are equal.
If the slopes of two lines are equal, then they have the same steepness and will never intersect.
However, if the slopes are different, the lines will intersect at some point, and they will not be parallel.
Thus,
Two line segments are parallel if and only if their slopes are equal.
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how to solve 2|4-3x|-2 <10?
━━━━━━━☆☆━━━━━━━
▹ Answer
(-2/3, 10/3)
▹ Step-by-Step Explanation
2|4 - 3x| - 2 < 10
2|-3x + 4| - 2 < 10
2|-3x + 4| < 12
= (-2/3, 10/3)
Hope this helps!
CloutAnswers ❁
━━━━━━━☆☆━━━━━━━
PLEASE HELP ME QUICKLY In ΔABC,
if m∠CAD = 29°, the m∠DAB is _______
Answer:
it will also be 29°
Step-by-step explanation:
LDAB will be also 29° cuz D is the bisector and at the top the two lines resembles that. So if CAD is 29° then DAB will be also 29°
I hope so it will help ✨
The angle ∠DAB will be equal to 29 degrees.
What is an angle bisector?The line or line segment that divides an angle into two equal halves is known as the internal angle bisector or (interior) bisector. An angle is a shape created by two rays that share a terminus and are referred to as the angle's sides and vertices, respectively.
Angles created by two rays are in the plane where the rays are located. The meeting of two planes also creates angles.
Given that in triangle ABC the angle ∠CAD is 29°. Then the angle will be calculated as below:-
The line AD is an angle bisector at point A of the triangle. Then the two angles ∠CAD and ∠DAB will be equal to each other.
∠CAD = ∠DAB
∠CAD = 29°
Therefore, the angle ∠DAB will be equal to 29 degrees.
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Need help with 2,4,6!!!!!!!!!!!!!!
Answer:
m+22=30m+22-22=30-22
m=8
7y=287/7 y=28/7
y=4
12+3p=-312-12+3p=-3-12
3p=-15
3/3 p=-15/3
p=-5
A garment store sells a particular brand of a shirt at ₹x and a particular brand of a trouser at ₹y. John buys 5 shirts and 3 trousers from the store at ₹9000. Frame an equation to model the above situation.
Answer:what I don’t even know sorry that I wasted you time but if you stay and keep reading it might be important
So how do I switch accounts or log out hopefully you chose to keep reading I got you good and wasted your time
Step-by-step explanation:
Simplifying Square Roots of negative numbers
Answer:
0+10i
Step-by-step explanation:
First, the square root of 100 is 10 because 10*10 is 100.
i=-1
Therefore, to get rid of the minus, it would be 10i
Since there is nothing else to solve,
the answer is 0+10i
Need help giving 13 points
(12y2
+ 17y - 4) + (9y2
- 13y + 3) =
Answer:
[tex]21y^{2} +4y-1[/tex]
Step-by-step explanation:
Hello!
[tex](12y^{2} +17y-4)+(9y^{2} -13y+3)[/tex]
For this, we can combine like terms
[tex]12y^{2} +9y^{2}=21y^{2}[/tex]
17y - 13y = 4y
-4 + 3 = -1
Combine the answers and we get
[tex]21y^{2} +4y-1[/tex]
Hope this Helps!
Answer:
21y² + 4y -1
Step-by-step explanation:
(12y² + 17y - 4) + (9y² - 13y + 3) ---- remove parentheses
= 12y² + 17y - 4y + 9y² - 13y + 3
= 12y² + 9y² + 17y - 13y - 4 + 3 -----grouped like terms
= 21y² + 17y - 13y - 4 + 3
= 21y² + 4y - 4 + 3
= 21y² + 4y - 1
the ratio of adults to children attending a new exhibit at the museum was found to be 8:5. based on this ratio if 390 people attended one day how many would be children
999
why becuase thats the answer mine had
please help on 9 to be marked the brainliest
how to find three-quarters of x
Answer:
3x/4
Step-by-step explanation:
Three quarters =3/4
3/4 of x = 3x/4
Answer:
3/4 times x
Step-by-step explanation:
of = multiply
4 quarters = 1 so subtract 1/4 quarter's and it equals 3/4 of x
Which of the following functions is not quadratic?
Answer:
f ( x ) = 5x - 5 is not a quadratic function.
The degree of the equation f(x) = 5x – 5 is one, then it is not a quadratic equation. Then the correct option is B.
What is a quadratic equation?The quadratic equation is given as ax² + bx + c = 0. Then the degree of the equation will be 2. Then we have
If the degree of the equation is not 2, then the function is not a quadratic.
f(x) = 5x – 5, the degree of the equation is one, then it is not a quadratic equation.
Then the correct option is B.
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Which step can you use to solve the equation 6z=48
Answer:
z=8
Step-by-step explanation:
6z=48
divide by 6
6z/6=48/6
z=8
Answer:
x=8
Step-by-step explanation: Divide six on both sides and that should give you 8 as your answer.
what is x? please answer asap!!
Answer:
Hey there!
Angle x is equal to 148 degrees because it is supplementary with the angle of 32 degrees.
Let me know if this helps :)