2y=4
y-5z=-3
6x-9y+4z=-20
Answer:
1. y = 2
2. y = -3 + 5z, zeR
3. x = ^-10/3 + 3/2^y ^-2/3^z, yeR, zeR
Step-by-step explanation:
If you would like me to explain, comment on this answer!
50PTS PLZ HELP ME I'M STUCK
Answer:
m∠O = 80°
Step-by-step explanation:
m∠O = 4x - 20
m∠Q = 3x + 5
m∠O and m∠Q are congruent
4x - 20 = 3x + 5
Solve for x = 25
Plug back in
m∠O = 4(25) - 20
m∠O = 100 - 20
m∠O = 80°
Henry buys an item for $4.23. He gives the cashier a $20 bill. How much money should Henry get back?
Answer:
Henry will get $15.77 back.
Step-by-step explanation:
20 - 4.23 = 15.77
A jar contains 0.25 liter of apple juice and 0.30 liter of grape juice. Melissa poured 0.75 liter of pineapple juice into the jar. She then drank 0.20 liter of the mixture. Part A: Write an expression to represent the total amount of juice left in the jar. (5 points) Part B: Simplify the expression and identify which property is used in each step. (5 points)
Answer:
Part A: Total amount of juice left = 0.25 + 0.30 + 0.75 - 0.20
Please help quick! Thanks!
Answer:
69.9 (nice)
Step-by-step explanation:
To solve this, use the order of operations: PEMDAS (Parenthasis, exponents, Multiplication/Division, Addition/subtraction) In order.
1. Solve in the parenthasis, (2+3³). 3³ = 27, so 2+27 is 29. Plug in 29 to the equation: 5³-29×1.9
2. Next is exponents. 5³ has an exponent, which equals 125. Now you plug that into the equation to be 125-29×1.9
3. Now comes multiplication/division. In this case, it's multiplication. -29×1.9 . This equals -55.1, and you once again plug this into the equation to simplify which gives you 125 - 55.1
4. Last in the order of PEMDAS is addition/subtraction. The final simplification of the equation is 125 - 55.1 which is subtraction and this equals 69.9 (nice)
So in conclusion, your answer is 69.9 (nice)
(02.03)
The ratio of the number of cupcakes to the number of pastries in a box is 7:2 Which
table shows the possible amounts of cupcakes and pastries in a box, given the ratio?
(2 points)
Answer:
It's the one under the one you have selected.
Step-by-step explanation:
7:2
14:4
28:8
56:16
Divide the first number by 7 then multiply it by 2.
Example: 56/7=8, 8*2=16 so it's correct.
Answer:
could be d
Step-by-step explanation:
The owner of a health club decides to reduce the $35 membership fee by $5. What is the approximate percent decrease in the fee?
The percent decrease is approximately 0.14%.
The percent decrease is approximately 0.85%.
The percent decrease is approximately 14%.
The percent decrease is approximately 85%.
Answer:
The percentage of decrease is approximately 0.14%.
Step-by-step explanation:
35 - 5 = 30
What percentage is 5 of 35 (x/100 = is/of)
x/100 = 5/35 (cross multiply)
(5*100)/35 = 14.29%
it's C
hoped this helped you with your problems
2 |a| - ab ;if a = -7 and b = 3
Answer:
35
Step-by-step explanation:
absoulute value of a=7
so 2x7=14
ab=-7x3= -21
14- (-21)= 35
What is the slope of the line?
3(y- 1) = 2x + 2
Answer:
2/3
Step-by-step explanation:
1. The easiest way to find the slope of the line is by converting this equation into slope-intercept form (y = mx + b).
y = y-coordinatem = slopex = x-coordinateb = y-intercept2. (Solving)
Step 1: Simplify both sides of the equation.
[tex](3)(y) + (3)(-1) = 2x + 2[/tex] [tex]3y - 3 = 2x + 2[/tex]Step 2: Add 3 to both sides.
[tex]3y - 3 + 3 = 2x + 2 + 3[/tex] [tex]3y = 2x + 5[/tex]Step 3: Divide both sides by 3.
[tex]\frac{3y}{3} = \frac{2x+5}{3}[/tex] [tex]y = \frac{2}{3}x + \frac{5}{3}[/tex]3. Since 2/3 is in place of m, the slope, the slope of the line is 2/3.
I don’t understand this question. please help
Answer:
D. As the Radius of the can get larger and larger, the label gets further and further from zero (0)
Hope this helps, have a nice day/night! :D
four spheres of radius 6cm fit into a cylinder with a height of 12cm. calculate the volume inside the cylinder that is empty. leave your answer in terms of pi.
Answer:
V = 432pi cm^3
Step-by-step explanation:
Pi x r^2 x h
Pi x 6^2 x 12 cm = 432 pi cm^3
am i correct ?? for a brainly and pls explain
Answer:
Yes.
Step-by-step explanation:
Because
6*4 =24
and 4*0 = 0,
24+0=24
have a nice day!!!
James wants to prove the Base Angles Theorem. His two-column proof is shown below. Fill in the correct statements and reasons to complete James's proof.
R
Given: PQ-OR SQ bisects ZPOR
Prove: Za ZR
Reasons
Statements
PO a QR
1. Given
SQ bisects ZPOR
2
2. Given
3
ZPOS a ZROS
e
3
4. 05 ags
4.
e
5
APQS AROS
5.
e
6. ZPa ZR
< Previous
The two column proof is presented as follows;
Statement [tex]{}[/tex] Reasons
1. [tex]\overline{PQ}[/tex] ≅ [tex]\overline{QR}[/tex] [tex]{}[/tex] 1. Given
2. [tex]\overline{SQ}[/tex] bisects ∠PQR 2. Given
3. ∠PQS ≅ ∠RQS [tex]{}[/tex] 3. Definition of angle bisector
4. [tex]\overline{QS}[/tex] ≅ [tex]\overline{QS}[/tex] [tex]{}[/tex] 4. Reflexive property of congruency
5. ΔPQS ≅ ΔRQS [tex]{}[/tex] 5. SAS rule of congruency
6. ∠P ≅ ∠R [tex]{}[/tex] 6. CPCTC
Reasons:
3. An angle bisector is defined as a line that divides an angle in two.
4. Reflexive property is the property that a side is congruent to itself.
5. SAS: Side-Angle-Side rule of congruency states that, when two sides an
an included angle are congruent to two sides and an included angle in
another triangle, the two triangles are congruent.
6. CPCTC; Congruent Parts of Congruent Triangles are Congruent
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decrease £7720 by 20%
Answer: Percentage decrease = 20% × 7,720
New value = 7,720 - Percentage decreaseNew value =
7,720 - Percentage decrease =
7,720 - (20% × 7,720) =
7,720 - 20% × 7,720 =
(1 - 20%) × 7,720 =
(100% - 20%) × 7,720 =
80% × 7,720 =
80 ÷ 100 × 7,720 =
80 × 7,720 ÷ 100 =
617,600 ÷ 100 =
6,176
New value - 7,720 =
6,176 - 7,720 =
- 1,544
Step-by-step explanation:
Calculate in square units the area of the shaded region bounded by the line
[tex] \frac{x}{4} + \frac{y}{5} = 1 \\ [/tex]
x/4 + y/5 = 1
, y = 0 and x = 0.
Please include the graph.
9514 1404 393
Answer:
10 square units
Step-by-step explanation:
The given equation is in "intercept form." This lets you see immediately the x-intercept is 4, and the y-intercept is 5. This makes the area be that of a right triangle with base 4 and height 5:
A = 1/2bh = 1/2(4)(5) = 10 . . . . square units
Four less than the product of 8 and a number is 6. Use the variable c for the unknown number.
Translate the sentence into an equation.
Answer:
c=44
Step-by-step explanation:
4-(8x6)=c
c=8x6-4
c=48-4
c=44
Answer:
(8 x c) - 4 = 6
or just simply
8c - 4 = 6
Step-by-step explanation:
Ok Madara, so four less means subtract by four, it saying that towards the product of 8 and unknown number,
so the product of 8 and an unknown number is
8 x unknown number
four less than that, is
(8 x c) - 4
is just means =
so
(8 x c) - 4 = 6
That's all I can say for now! Hope this helps and a thank won't hurt! :)
latasha had a piece of leather string that was 18 inches long that she wants to use to make wrist bands if each wrist needed to be 6 inches long how many wrist bands can she make
Answer:
the answer is 3
Step-by-step explanation:
take 18 and divide it by 6 and you get 3
Which equation demonstrates the additive identity property?
0 (7+4i)+(7-4i) = 14
O (7+4i)+ 1 = 7+4i
(7+4)(1) = 7+4)
O (7+4i)+(-7-4i)= 0
Answer:
A
Step-by-step explanation:
The Explication 0 (7+4i)+(7-4i) = 14
The correct equation which demonstrates the additive identity property is,
⇒ (7 + 4i) + 0 = 7 + 4i
What is Addition?The process of combining two or more numbers is called the Addition. The 4 main properties of addition are commutative, associative, distributive, and additive identity.
Now, If we add a real number to zero or add zero to a real number, then we get the same real number back.
Hence, The number zero is known as the identity element, or the additive identity.
For example: a + 0 = a
Hence, we can see that;
⇒ (7 + 4i) + 0 = 7 + 4i
Since, 0 is the additive identity here.
Thus, The correct equation which demonstrates the additive identity property is,
⇒ (7 + 4i) + 0 = 7 + 4i
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We are given a sequence of five non-zero numbers, where the sum of each term and its neighboring terms is 15 or 25. Find the sum of all the terms in the sequence.
We have a sequence that meets the given criteria, and with that information, we want to get the sum of all the terms in the sequence.
We will see that the sum tends to infinity.
So we have 5 terms;
A, B, C, D, E.
We know that the sum of each term and its neighboring terms is 15 or 25.
then:
A + B + C = 15 or 25B + C + D = 15 or 25C + D + E = 15 or 25Now, we want to find the sum of all the terms in the sequence (not only the 5 given).
Then let's assume we write the sum of infinite terms as:
[tex]a_1 + a_2 + a_3 + a_4 + a_5 + a_6 + ...[/tex]
Now we group that sum in pairs of 3 consecutive terms, so we get:
[tex](a_1 + a_2 + a_3) + (a_4 + a_5 + a_6) + ...[/tex]
So we will have a sum of infinite of these, and each one of these is equal to 15 or 25 (both positive numbers). So when we sum that infinite times (even if we always have the smaller number, 15) the sum will tend to be infinite.
Then we have:
[tex](a_1 + a_2 + a_3) + (a_4 + a_5 + a_6) + ... \to \infty[/tex]
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How to do this, thank you
Answer:
[tex]2^1^5[/tex]
Step-by-step explanation:
Power rule: you multiply the exponent.
Think of it this way: [tex]X ^3 = X \times X \times X[/tex]. In this case, [tex]X = 2^5[/tex]
At this point our original number is [tex]2^5 \times 2^5 \times 2^5 = 2\times2\times2... \times 2[/tex] with 15 2s
Which is, by definition, [tex]2^1^5[/tex]
c.
The family purchased refreshments and spent a total of $18.50. If the total amount of money spent
on tickets and refreshments was $94.50, use an equation to find the cost of one regular admission
ticket.
How would you write the equation?
(94.50 - 18.50) ÷ f = a
f=family members
a=answer
I don't know how many family members there are, but you would just replace f with the amount.
Each centerpiece has 17 flowers she has 430 for the project
Answer:
What even is this question?
Which is equivalent to 4√3
will mark brainlist if right
Answer:
The result can be shown in multiple forms.
Exact Form: 4√3 = √48
Step-by-step explanation:
wus 9 + 10 equal please help wus 9 = 10
Answer:
19
Step-by-step explanation:
it is 19
yes
wait no its 100000000000
I big brain UwU
Answer:
Step-by-step explanation:its 21
Complete the equation to calculate the cost of the portable speaker, including sales tax.
$53
=
% of $50
Answer: The answer to this math question about completing the equation in order to calculate the cost of the portable speaker, including the sales tax is $94.34.
Step-by-step explanation: I don't have any step-by-step explanation, I'm sorry about that, but anyway, I hope that my given short answer is very helpful to your own math question about completing the equation in order to calculate the cost of the portable speaker, including the sales tax, please mark me as Brainliest, take care, always be safe, and have a great rest of the day! :D
Sincerely,
Jason Ta,
The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.
A company has 24 employees. Each employee volunteers to bring 1 item to the local school fundraiser.
One-fourth of the employees bring pencils.
One-third of the employees bring paper.
The rest of the employees bring notebooks.
How many employees bring notebooks?
Answer:
6 employees bring pencils
8 employees brings paper
6+8=14
Company:24 employees- 14 employees who brong paper and pencils.=10 so 10 employees brings notebooks.
Step-by-step explanation:
Answer:
6 employees bring pencils
8 employees bring paper
10 employees bring notebooks
Step-by-step explanation:
1/4= 6
1/3= 8
the rest = 10
You mowed 2.25 yards in 1.5 hours. How many yards did you mow in 1 hour?
Answer:
1.5
Step-by-step explanation:
to find one hour you divide both answers by 1.5 giving you one hour and 1.5
1.5 yards did you mow in 1 hour when, You mowed 2.25 yards in 1.5 hours.
What is division?Division is the process of splitting a number or an amount into equal parts.
Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.
here, we have,
You mowed 2.25 yards in 1.5 hours.
in 1 hours I mowed = 2.25/1.5
=1.5
Hence, 1.5 yards did you mow in 1 hour.
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170 students or 85% of the students went to attend college what are the total number of students?
Answer:
200
Step-by-step explanation:
I think sorry if I am wrong
what value of durbin–watson statistic indicates no autocorrelation is present?
Answer:
2
Step-by-step explanation:
when the value is below 2
a situation in which no identifiable relationship exists between the values of the error term.
The value of Durbin–Watsons statistic indicates no autocorrelation is present is 2.
What is Durbin–Watsons statistic?The output of a regression model is tested for autocorrelation using the Durbin-Watson statistic. Zero autocorrelation is indicated by a value of 2.0 in the DW statistic, which has a range of zero to four. Positive autocorrelation is indicated by values below 2.0, and negative autocorrelation is shown by values over 2.0.
As, The range of the Durbin-Watson statistic is 0–4. There is no first-order autocorrelation when the number is 2 or close to 2.
The range of 1.50 to 2.50 is suitable.
A number between 0 and 4 will always be assigned to the Durbin-Watson statistic.
A value of 2.0 means that no autocorrelation in the sample was found. Positive autocorrelation is shown by values between 0 and less than 2 whereas negative autocorrelation is indicated by values between 2 and 4.
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Round 0.41275 to the nearest thousandth
Answer:
0.41, 2 is lower than 5 so we round down
Answer:
0.41300
Step-by-step explanation:
0.41275.
0.4: tenths place. 0.01: hundredths place. ...
Now look at the next decimal place, which is 0.0007: the ten thousandths place . This number determines whether the thousandths place will be rounded up or down. ...
Therefore, 0.41275 rounded to the nearest thousandth is:
