Drag a statement or reason to each box to complete this proof. If 4x+5=17 , then x=3 .
Answers
The answer fam is........
Statement Reason
1) 4x + 5 = 17 Given
2) 4x + 5 - 5 = 17 - 5 Subtraction property of equality
3) 4x = 12 Simplifying
4) 4x/4 = 12/4 Division property of equality
5) x = 3 Simplifying
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Answer:
Here it is!
Step-by-step explanation:
Related Questions
use cramers rule to solve each system 6x +2y= -78 7x - 4y= -15
Answers
[tex]\bf y=\cfrac{D_y}{D}\implies \cfrac{ \begin{bmatrix} 6&-78\\7&-15 \end{bmatrix}}{-38}\implies \cfrac{(6\cdot -15)-(-7\cdot 78)}{-38} \\\\\\ \cfrac{-80+546}{-38}\implies \cfrac{456}{-38}\implies -12[/tex]
A hair salon charges fixed rate of $25.00 for a haircut and then an additional $15.00 for any other services. Write a function to model cost of services there and then determine how many services you had if you were charged for $115.00
Answers
Answer:
f(x) = 15x + 25; f(6) = 115
Step-by-step explanation:
the flat rate of $25 will be the y-intercept and the slope will be $15. since u are charged $115, plug that in for f(x) and solve for x. so the right answer is
f(x) = 15x + 25; f(6) = 115
Which is the better estimate of the weight of a football helmet
Answers
Probably 3 - 5 pounds.
Hope this helps :))
~Top
What is the expression in simplest form ?
(3x - 2) - (4x + 1)
a. x-3
b. -x - 3
c. -x + 1
d. x + 1
Answers
Answer:
b. -x - 3
Step-by-step explanation:
(3x -2) -(4x +1) . . . given
3x -2 -4x -1 . . . . . . distribute the minus sign; eliminate parentheses
(3x -4x) + (-2 -1) . . . group like terms
-x -3 . . . . . . . . . . . . simplify
Jackie deposited $315 into a bank account that earned 1.5% simple interest each year.
If no money was deposited into or withdrawn from the account, how much money was in the account after 3 years?
Round your answer to the nearest cent.
Enter your answer in the box.
Answers
Answer: Its 329.18 just took a test.
jay will make $240 doing yard work for 6 weeks. he is saving his money to buy camping equipment that cost $400. He has already saved $120. Is it reasonable to say that Jay will save enough money in 6 weeks? Explain
Answers
Which is the best unit to use for measuring the length of an eyelash millimeters C centimeters B meters or D kilometers
Answers
The best unit for the measurement of length of eyelash is millimeters
A fundamental unit of measurement is a unit of measurement in which other units are derived from, it includes length often expressed as follows;
kilometers; for large distancesmeters for large lengths of objectscentimeters; for small distances or lengths of objectsmillimeters; for relatively small lengths, like keys, eyelashes etcThus, the best unit for the measurement of length of eyelash is millimeters
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What is the area under the normal curve between z = 0.0 and z = 1.79?
Answers
I remember some of the questions to this assignments.
The area under the normal curve between z = 0.0 and z = 1.79 is 0.4641.
Explanation:The area under the normal curve between z = 0.0 and z = 1.79 can be found by subtracting the area to the left of z = 0.0 from the area to the left of z = 1.79.
The area to the left of z = 0.0 is 0.5000, and the area to the left of z = 1.79 is 0.9641 according to the Z-table.
Subtracting the two values, we get an area of 0.4641 between z = 0.0 and z = 1.79.
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boa saved $179 a month. he saved $145 less than ada each month. how much would ada save in three and a half years?
Answers
three and a half years is 42 months
42 months times 324
13608
It says Boa's savings each month are "$145 less than Ada", so we need to add 179 to 145. 179+145 = 324.
Okay, so now we know the amount of Ada's savings per month, we need to find out how much money she would have in 3 and a half years. 12 months is equal to one year. A half a year is 6 months. Three whole years is 36 months, and 6 months added to that is 42 months.
Since $324 represents only one month, and we want 42 months, we need to multiply 324 by 42. 324*42 = $13608. $13608 is what Ada saved within 3 years and a half.
8 Times 43 In expanded form
Answers
100×34 10×4 1×4 = 344 which is your answer. Hoped this helped! If you need any help just ask me! I am here to help!
Rosey
A class of 40 students elected a class president. There were 12 votes for Candidate A, and 18 votes for Candidate B. The remaining students in the class did not vote. Which expression gives the percent of voters who voted for Candidate A?
Answers
12/40 = Candidate A.
18/40 = Candidate B.
12 + 18 = 30
40 - 30 = 10
10/40 = Those who didn't vote.
ANSWER:
12 ÷ 40 = .3 (30%) So 30% voted for Candidate A.
18 ÷ 40 = .45 (45%) So 45% voted for Candidate B.
10 ÷ 40 = .25 (25%) So 25% didn't vote at all.
Those Are Your Answers! ^^^
Each package of dried fruit contains 3/16 of a pound Mr. Lopez has 4 pounds of dried fruit How many packages can he fill
Answers
Final answer:
Mr. Lopez can fill 21 full packages of dried fruit, each containing 3/16 of a pound, with his 4 pounds of dried fruit.
Explanation:
The question asks how many packages of dried fruit Mr. Lopez can fill if each package contains 3/16 of a pound and he has 4 pounds of dried fruit. To answer this, we need to perform a division to find out how many 3/16 are in 4 pounds.
To solve this, we divide 4 pounds by 3/16 pounds per package:
4 ÷ (3/16) = (4/1) ÷ (3/16) = (4 × 16) / 3 = 64/3 = 21 with remainder 1.
Therefore, Mr. Lopez can fill 21 full packages of dried fruit and will have a little left over which is not enough to fill an additional full package.
If you add 20% of a number to the number itself what percent of the result would you have to subtract
Answers
1/6 = 16.667%
Suppose θ is an angle in the fourth quadrant with cosθ=x/4. Find expressions for the other five trig functions in terms of x?
Answers
now, we know the angle is in the IV quadrant, that means, the cosine is positive and the sine is negative, or "x" is positive whilst "y" is negative.
[tex]\bf cos(\theta )=\cfrac{\stackrel{adjacent}{x}}{\stackrel{hypotenuse}{4}} \\\\\\ \textit{using the pythagorean theorem}\\\\ c^2=a^2+b^2\implies \pm\sqrt{c^2-a^2}=b\qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ \pm\sqrt{4^2-x^2}=b\implies \stackrel{IV~quadrant}{-\sqrt{16-x^2}=b}\\\\ -------------------------------[/tex]
[tex]\bf sin(\theta)=\cfrac{-\sqrt{16-x^2}}{4} \qquad cos(\theta)=\cfrac{x}{4} \qquad % tangent tan(\theta)=\cfrac{-\sqrt{16-x^2}}{x} \\\\\\ % cotangent cot(\theta)=\cfrac{x}{-\sqrt{16-x^2}} \qquad % cosecant csc(\theta)=\cfrac{4}{-\sqrt{16-x^2}} \qquad % secant sec(\theta)=\cfrac{4}{x}[/tex]
now, for the cotangent and the cosecant, let's rationalize the denominator,
[tex]\bf cot(\theta)=\cfrac{x}{-\sqrt{16-x^2}}\cdot \cfrac{\sqrt{16-x^2}}{\sqrt{16-x^2}}\implies cot(\theta)=-\cfrac{x\sqrt{16-x^2}}{16-x^2} \\\\\\ csc(\theta)=\cfrac{4}{-\sqrt{16-x^2}}\cdot \cfrac{\sqrt{16-x^2}}{\sqrt{16-x^2}}\implies csc(\theta)=-\cfrac{4\sqrt{16-x^2}}{16-x^2}[/tex]
Can 3.65909090909 be expressed as a fraction whose denominator is a power of 10? Explain.
Answers
notice above, all we did, was isolate the "recurring part" to the right of the decimal point, so the repeating 09, ended up on the right of it.
now, let's say, "x" is a variable whose value is the recurring part, therefore then
[tex]\bf \cfrac{3659.0909\overline{09}}{1000}\qquad \boxed{x=0.0909\overline{09}} \qquad \cfrac{3659+0.0909\overline{09}}{1000}\implies \cfrac{3659+x}{1000}[/tex]
now, the idea behind the recurring part is that, we then, once we have it all to the right of the dot, we multiply it by some power of 10, so that it moves it "once" to the left of it, well, the recurring part is 09, is two digits, so let's multiply it by 100 then,
[tex]\bf \begin{array}{llllllll} 100x&=&09.0909\overline{09}\\ &&9+0.0909\overline{09}\\ &&9+x \end{array}\quad \implies 100x=9+x\implies 99x=9 \\\\\\ x=\cfrac{9}{99}\implies \boxed{x=\cfrac{1}{11}}\\\\ -------------------------------\\\\ \cfrac{3659.0909\overline{09}}{1000}\qquad \boxed{x=0.0909\overline{09}} \quad \cfrac{3659+0.0909\overline{09}}{1000}\implies \cfrac{3659+x}{1000} \\\\\\ \cfrac{3659+\frac{1}{11}}{1000}[/tex]
and you can check that in your calculator.
Find the limit, if it exists, or type dne if it does not exist.
a. \displaystyle\lim_{(x, y) \rightarrow (0, 0)} \frac{(x + 23y)^2}{x^2 + 529y^2} =
Answers
Suppose we choose a path along the [tex]x[/tex]-axis, so that [tex]y=0[/tex]:
[tex]\displaystyle\lim_{x\to0}\frac{x^2}{x^2}=\lim_{x\to0}1=1[/tex]
On the other hand, let's consider an arbitrary line through the origin, [tex]y=kx[/tex]:
[tex]\displaystyle\lim_{x\to0}\frac{(x+23kx)^2}{x^2+529(kx)^2}=\lim_{x\to0}\frac{(23k+1)^2x^2}{(529k^2+1)x^2}=\lim_{x\to0}\frac{(23k+1)^2}{529k^2+1}=\dfrac{(23k+1)^2}{529k^2+1}[/tex]
The value of the limit then depends on [tex]k[/tex], which means the limit is not the same across all possible paths toward the origin, and so the limit does not exist.
Rewrite 21/300 as a decimal.
Answers
What is 2,384 divided by 23 and what is 378 divided by 56 pls help me i will give the brainliest answer to someone who answers first
Answers
2nd 6.75
What is the molar solubility of magnesium fluoride in a solution that is 0.40 m f− ions? the ksp of mgf2 is 6.4 × 10−9. hints what is the molar solubility of magnesium fluoride in a solution that is ions? the of is . 8.0 × 10−9 8.0 × 10−5 1.6 × 10−8 4.0 × 10−8?
Answers
The molar solubility of magnesium fluoride in a solution with a concentration of 0.40 M fluoride ions is 0.80 M.
Explanation:The molar solubility of magnesium fluoride in a solution with a concentration of 0.40 M fluoride ions can be calculated using the solubility product constant (Ksp) of MgF2, which is 6.4 × 10-9.
First, write the dissolution equation for MgF2: MgF2(s) ⇌ Mg2+(aq) + 2F-(aq)
Since the stoichiometry of the dissolution equation is 1:2 between magnesium ions and fluoride ions, the molar solubility of MgF2 is twice the concentration of fluoride ions.
Therefore, the molar solubility of MgF2 in a solution that is 0.40 M fluoride ions is 2 × 0.40 M = 0.80 M.
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What is the value of mc016-1.jpg?
-20
-4
4
20
the pic is the .jpg
Answers
(4-2)^3 -3*4 =
(4-2) = 2, 2^3 = 8
3*4 =12
so you have 8-12 = -4
Answer is -4
Explanation:
This question's it's about the order of operations. It stands for parenthesis, exponents, multiply, divide, add, and subtract. It can also go left too right. (PEMDAS)
First, do parenthesis.
[tex](4-2)=2[/tex]
[tex]2^3-3*4[/tex]
Then exponents.
[tex]2^3=2*2*2=8[/tex]
[tex]8-3*4[/tex]
Multiply left to right.
[tex]3*4=12[/tex]
Subtract left to right.
[tex]8-12[/tex]
[tex]12-8=4[/tex]
It change positive to negative sign.
Answer: → [tex]\boxed{=-4}[/tex]
*The answer must have a negative sign.*
Hope this helps!
Thank you!
-Charlie
Texaschic101
Help please
Answers
Obviously the mean and median aren't shown.
So in this case it would be the first one, since the second bar isn't including 9, so it wouldn't include 9, so we wouldn't know how many of 10-14 are 9s, so we don't know that.
So it would have to be the first one.
What is 5.8×2.4?
Show your work
What grade if u like this you will get 24 points
.
.
Answers
1. put 5.8*2.4 into a standard algorithm. which will look like this.
5.8
x 2.4
---------
232
+1160
--------
13.92 hope that helped
a 6-pack of capri-Suns costs $8.80 .How much would a 24-pack cost if the costs are proportional
Answers
in a 24-pack, there are 24 bottles, 24-pack.
so, if 6 bottles, cost 8.80, how much will it be for 24 bottles then?
[tex]\bf \begin{array}{ccll} bottles&price\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 6&8.80\\ 24&p \end{array}\implies \cfrac{6}{24}=\cfrac{8.80}{p}\implies p=\cfrac{24\cdot 8.80}{6}[/tex]
I'm struggling on this!!!!!!!!!
In a photograph, a sculpture is 4.2 cm tall and 2.5 cm wide. The scale factor is 1 to 16. Find the size of the actual sculpture.
Answers
Step-by-step explanation:
67.2 Length And 40cm Wide
Christina can paint 420 square feet in 105 minutes. Which unit rate describes the scenario?
4 square feet per minute
square foot per minute
1 square foot per 4 minutes
1 square foot per minute
Answers
divide total sq ft x total minutes to get square feet per minute
420/105 = 4
so 4 sq ft per minute
Write each equation in slope intercept form 5x+3y=30
Answers
In order to get x to the other side, you subtract it on both sides.
3y = -5x + 30
But in slope intercept form, y can’t have any number in front of it. To get rid of the number, divide both sides by 3
y = -5x/3 + 6
There are 117 staff members in your school. 1/3 of them are going away for the Thanksgiving holiday. How many staff members are not traveling?
This was the main question but i didnt get how to solve it.. (wasnt sure if subtraction was thr right way)
Answers
117 - 39 = 78
78 staff members are not leaving for Thanksgiving.
The ratio of blue marbles to white marbles in a bag is 4 to 5 at this rate how many blue marbles are there if there are 15 white marbles
Answers
The complement of 17% is
Answers
Answer:
73%.
Step-by-step explanation:
Let x be the complement of 17%.
We are asked to find the complement of 17%.
We know that two angles are complementary when they add up-to 90 degrees. So we can set an equation as:
[tex]17\%+x=90\%[/tex]
[tex]17\%-17\%+x=90\%-17\%[/tex]
[tex]17\%-17\%+x=73\%[/tex]
Therefore, the complement of 17% is 73%.
You and two friends got jobs at stores in the mall. You earn
$117.60
$117.60
for
14
14
hours of work. Ty earns
$148.50
$148.50
in
18
18
hours. Kim earns
$137.60
$137.60
in
16
16
hours. Who has the highest pay rate in dollars per hour?
Answers
$117.60/14 = $8.40/hour
$148.50/18 = $8.25/hour
$137.60/16 = $8.60/hour
Kim earns the highest pay per hour.