Answer:
additive identity
Step-by-step explanation:
-11+N=-11 N=0
ADD 11 TO BOTH SIDES
-11+N+11 =-11 +11
(-11 AND 11 CANCEL EACH OTHER OUT ) THEREFORE
N=0
*Additive Identity Property states The sum of any number and 0 is that number.
A chemistry teacher has a flask of a 45% acidic solution and another bottle of 28% acidic solution.
How much would he need to use of each container to arrive at a final solution that is 100 mL of a 33.95% solution?
Answer:
35 ml of 28% acidic solution and 65ml of 45% acidic solution is to be used
Step-by-step explanation:
Let the number of ml of the 45% solution be x while that of the 28% solution be y
Mathematically;
x + y = 100 ••••••(i)
Furthermore
45% of x + 28% of y = 33.95% of 100
0.45x + 0.28y = 33.95 ••••••(ii)
From i,
x = 100-y
put this into ii
0.45(100-y) + 0.28y = 33.95
45 - 0.45y + 0.28y = 33.95
45 - 33.95 = 0.45y - 0.28y
11.05 = 0.17y
y = 11.05/0.17
y = 65
Recall
x = 100 - y
x = 100 - 65
x = 35 ml
Which of the following has an x-intercept of 2 and a y-intercept of -4?
Answer:
Second photo
I hope this helps!
What is
-15 times the square root of 10 divided by 9? And whats the square root of that answer?
Part E
How much more money did movie B earn than movie E that week?
Please help!
B: $60,394,938.12
E: $10,505,611.08
Answer:
49,889,327.04
Step-by-step explanation:
If i helped please mark brainliest
find the smallest number by which 339 must be multiplied so that the product is a perfect cube. also find the cube root of the perfect cube so obtained
Answer:
The smallest number is 114921 and the cube root of the result is 339
Step-by-step explanation:
The number 339 can be factored as:
339 = 3 * 113
Both factors are prime, thus to produce a perfect cube, we must multiply by each factor to the power of 2, that is:
3^2*113^2=114921
When we multiply 339 by 114921 we get 38958219, a perfect cube which cube root is 339.
Thus, the smallest number is 114921 and the cube root of the result is 339
If 8 is an element in the domain of f(x) 5x-25 over 4, what is the corresponding element in the range?
Answer:
677658
Step-by-step explanation:
4765
Answer:
[tex]\frac{15}{4}[/tex] = 3.75
Step-by-step explanation:
Substitute x = 8 into f(x) for corresponding value in the range, that is
f(8) = [tex]\frac{5(8)-25}{4}[/tex] = [tex]\frac{40-15}{4}[/tex] = [tex]\frac{15}{4}[/tex] = 3.75
Which function is the inverse of y(x) = -5x-4?
Answer:
f(x)= - (x+4)/5
Step-by-step explanation:
sorry, i don't have time to explain..
how to solve: g/27 = 2/9 using one-step equations. whom ever will answer i will give the brainliest!
Answer:
what you do is 9 times what equals 27 well 3 does so you multiple 2/9 by 3/3 and get 6/27
so the answer is 6/27 :)
Help!!! Need Anwser!!!
Hello.
The answer is choice A. angle 1 = 118, angle 2 = 118
Explanation:
The four angles above are congruent (meaning the same) to the ones beneath.
Angles 1 and 2 are also congruent, so they will measure the same.
Lets label the angles above A, B, C, D. B being the known angle, which is 118°. The angles beneath can be labelled E, F, G, H.
∠B ≅ ∠D
∠ABCD ≅ ∠EFGH
∠BD ≅ ∠FH
FH (or 1 and 2) equal 118.
BRAINLIEST ANSWER!! ASAP!
Answer:
w=36
Step-by-step explanation:
to get the perimeter you add all sides.
w+w+2w+6+2w+6=228
6w+12=228
6w=216
w=36
length= 2(36) +6
length= 78
width= 36
If it's wrong, I apologize honestly! Answer: 91
Step-by-step explanation:
2w+6= 2(?)+6
If the perimeter is 288, then we have to find what's the closest to it. So let's try 91. 2 ×91= 182 , so it's going to be 182 +6, which equals 188. Remember if the w is 100 the w in the width is going to be 100 also, so 188 + 100= 288 glad I could help!
What is the value of x in the equation 2 x + 4 =-8? 3
Amar cycles at a speed of 18km/h.
It takes him 55 minutes to cycle between two villages.
Calculate the distance between the two villages
Answer:
The distance between the two villages is 16.5 Km
Step-by-step explanation:
Constant Speed Motion
It's a type of motion in which the distance of an object changes by an equal amount in every equal period of time.
If v is the constant speed, the object travels a distance x in a time t, given by the equation:
x=vt
Amar cycles at v=18 Km/h for t=55 minutes. We need to calculate the distance traveled between the two villages.
Since the speed and the time are given in different units, we convert the time to hours, recalling that 1 hour=60 minute.
t=55 min = 55/60 hours
For the sake of precision, we won't operate the division so far. Compute the distance:
x=18 *55/60=16.5 Km
The distance between the two villages is 16.5 Km
This is a math story ok omar is making a scale model of the statue of liberty the statue is 305 feet tall mesuring from the ground to the tip of the tourch if the model is 1/100 the acual size of the statue of liberty how tall is the model plz help i have 2 fss and i need to get my grades up
Answer:
[tex]Size= 3.05ft[/tex]
Step-by-step explanation:
Given
[tex]Scale = \frac{1}{100}[/tex]
[tex]Statue = 305ft[/tex]
Required
Determine the size of the statue
Size is calculated as thus:
[tex]Size = Scale * Statue[/tex]
[tex]Size = \frac{1}{100} * 305ft[/tex]
[tex]Size = \frac{305ft}{100}[/tex]
[tex]Size= 3.05ft[/tex]
Solve 24>−3r≥−9. please
Answer:
−8<r≤3
Step-by-step explanation:
The final inequality of 24>−3r≥−9 is -8 < r ≤ 3.
Given,
24>−3r≥−9
We need to solve this inequality.
What are inequalities?We have,
< = less than
> = greater than
≤ = less than and equal
≥ - greater than and equal
If we change the sign we change the inequality.
Example:
2 > -1
Multiply -1 on both sides.
-2 < 1
We have,
24 > -3r ≥ -9
We can cancel the common factor.
3 x 8 > -3r ≥ - 3 x 3
8 > -r ≥ -3
Multiply - on all sides.
-8 < -(-r) ≤ -(-3)
-8 < r ≤ 3
This means r values are between -8 and 3.
r = ( -8, 3]
Thus the final inequality of 24>−3r≥−9 is -8 < r ≤ 3.
Learn more about how to solve a compound inequality here:
https://brainly.com/question/17086294
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1. In the diagram below, if m angle1=79^ , find the measure of each numbered angle.
The measure of angles ∠1, ∠4, ∠5, ∠and 8 will be 79°. The measure of angles ∠2, ∠3, ∠6, and ∠7 will be 101°.
What are supplementary angles?The supplementary angles are defined as when pairing of angles addition to 180° then they are called supplementary angles.
We have been given that m angle ∠1 = 79°,
To determine the measure of each numbered angle.
As per the property supplementary angles,
m∠1 + m ∠2 = 180°
79° + m ∠2 = 180°
m ∠2 = 180° - 79°
m ∠2 = 101°
If a transversal intersects two parallel lines, then each pair of alternate interior angles is equal.
∠1 = ∠4 = 79°
∠2 = ∠3 = 101°
∠2 = ∠6 = 101°
∠4 = ∠5 = 79°
∠5 = ∠8 = 79°
∠6 = ∠7 = 101°
Thus, the measure of angles ∠1, ∠4, ∠5, ∠and 8 will be 79°. The measure of angles ∠2, ∠3, ∠6, and ∠7 will be 101°.
Learn more about supplementary angles here:
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Solve for h.
7a = -9 + 2h
Answer: h = 7a + 9 divided by 2
Write 6.03 as a mixed number
Answer:
6 3/100
Step-by-step explanation:
brainliest pls
simply this expression -7/10- (-5/3)
Answer:
1
I got it right on a test. Hope it works for you. :)
Answer:
-7/10- (-5/3)
-7/10 +(5/3) [two consecutive negatives make a positive]
-21+50/30=29/30 or 0.96666666666
1
2
3
A
5/6
1/8
9 0
11 12
13/14
15
16
In the figure, plly and "||s. Match each pair of congruent angles with the reason for their congruency.
corresponding angles for
parallel lines p and q cut by
the transversalr
corresponding angles for
parallel lines r and s cut by
the transversal a
Vertical Angles Theorem
Linear Pair Theorem
25 213
2125
210 214
213 = 216
corresponding angles for
parallel lines p and q cut by
the transversal s
Answer:
what grade is this jeez
Step-by-step explanation:
idk
The simpledt form of the decimal is 0.84 as a fraction is?
Which expression is equivalentito (f 94)?
Answer:
abxskFj
Step-by-step explanation:
a respuesta an cuando (f 94)=94
Which transformation can be used to accomplish this?
A-translation
B-reflection
C-rotation
D-dilation
Answer:
reflection
Step-by-step explanation:
its flipping over the y axis therefore a reflection
sorry if this is wrong :)
The bottom of a pylon is 3 1/2 yards below
the ground. The top of the pylon is 2 1/2 yards
above the ground. How tall is the pylon?
Answer:
6 yards
Step-by-step explanation:
The pylon is 6 yards tall.
What the types of fractions ?There are mainly two types of fractions proper fraction and improper fraction.In proper fraction numerator is smaller than the denominator and in improper fraction denominator is smaller than the numerator.
According to the given question
A pylon has some part of it below the ground and some part is above the ground and we have to find the total length of it.
Given [tex]\whole{3}\frac{1}{2}[/tex] yards is below the ground and [tex]\whole2\frac{1}{2}[/tex] yards above the ground.
∴Total length of the pylon is (7/2 + 5/2) yards.
= 12/2 yards.
= 6 yards.
Learn more about fractions here :
https://brainly.com/question/2753661
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5(x −1) < 3x + 10 − 8x
Answer:
x < [tex]\frac{3}{2}[/tex]
Step-by-step explanation:
I hope this help
Answer:
Step-by-step explanation:
5x - 5 < -5x + 10
10x - 5 < 10
10x < 15
x < 15/10
x< 3/2
3.7b+7=8.1b-19.4 is it a solution
Answer:
6 = b or b = 6
Step-by-step explanation:
3.7b + 7 = 8.1b - 19.4
Subtract 3.7b from 8.1b. Add 19.4 to 7.
26.4 = 4.4b
(26.4)/(4.4) = b
6 = b or b = 6
Please mark me the brainliest!?!
The can of coffee weighs 20 ounces. Each book weighs 36 ounces. What is the weight, in ounces, of one carton of salt?
Number 5 The answer is 26. Brainliest pls.
The answer to number 6 is H
Answer to 7 is D
Answer to 8 is 5
Answer to 9 is H
10 is I
11 is 68 cartons or less
12 is A
13 is f
14 is b
15 is g
f(3) = 5x + 5, find f(-4)
Answer:
-15
Step-by-step explanation:
substitute -4 for x:
5(-4)+5
-20+5
= -15
Mike bought 8 shares of stock for $57.50 each, hoping that the value would increase. When he sold the shares it was only for $42.75 per share. Which describes Mikes net profit
Will a non-metal replace a metal?
Yes
No
Answer:
No
Step-by-step explanation:
I think only a metal can replace a metal, not a non-metal replace a metal
simplify: 5x-(2x+y)
help
Answer:
3x-y
Step-by-step explanation:
Answer:
Simplifying
5x(2x + y) = 0
(2x * 5x + y * 5x) = 0
Reorder the terms:
(5xy + 10x2) = 0
(5xy + 10x2) = 0
Solving
5xy + 10x2 = 0
Solving for variable 'x'.
Factor out the Greatest Common Factor (GCF), '5x'.
5x(y + 2x) = 0
Ignore the factor 5.
Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:
Simplifying
x = 0
Solving
x = 0
Move all terms containing x to the left, all other terms to the right.
Simplifying
x = 0
Subproblem 2
Set the factor '(y + 2x)' equal to zero and attempt to solve:
Simplifying
y + 2x = 0
Reorder the terms:
2x + y = 0
Solving
2x + y = 0
Move all terms containing x to the left, all other terms to the right.
Add '-1y' to each side of the equation.
2x + y + -1y = 0 + -1y
Combine like terms: y + -1y = 0
2x + 0 = 0 + -1y
2x = 0 + -1y
Remove the zero:
2x = -1y
Divide each side by '2'.
x = -0.5y
Simplifying
x = -0.5y
Solution
x = {0, -0.5y}
