Answer:
C
Step-by-step explanation:
You have to distribute the negative into the second set of parentheses first, and since 2x is positive, it will be negative, -3 is negative so it will be positive, and 18 is positive so it will be negative
please help me with this asap
Answer:
24
Step-by-step explanation:
ft*2
12*2=24
Answer:
Step-by-step explanation:24
Ray starts walking to school at a rate of 2 mi/h. Ten minutes later, his sister runs after him with his lunch, averaging 6mi/h.
Complete question :
Ray starts walking to school at a rate of 2 mi/h. Ten minutes later, his sister runs after him with his lunch, averaging 6mi/h. Determine take it takes for sister to catch up
Answer:
5 minutes
Step-by-step explanation:
Ray's rate = 2mi/ hr
Time walked before sister starts = 10 minutes = (10/60) = 0.16667 hours
Hence, distance already covered = (rate * time) = (2 * 0.16667) = 0.3333 miles
To catchup :
Let t = Time taken to catch ; At t, distance covered must be the same ; thus ;
0.3333 + (2 * t) = 6 * t
0.3333 + 2t = 6t
0.3333 = 6t - 2t
0.3333 = 4t
t = 0.3333 / 4
t = 0.0833333 hours
t = 0.0833333 * 60 = 5 minutes
What divided by 8 can equal 4
Answer:
It's not 2 sorry about that
Step-by-step explanation:
Answer:
32
Step-by-step explanation:
What can be represented by x,
and what divided by 8 is equal to 4 can be represented by:
x/8 = 4
×8 ×8
x = 32
Help me with this math problem
Answer:
The mistake he made was not distributing the 1/4 to all the terms in the parentheses. It should've instead become 1/4x + 3, which would then lead to a different answer
Answer:
He forgot to divide 12 by 4.
Step-by-step explanation:
1/4(x + 12) = 2
1/4(x) + 1/4(12) = 2
x/4 + 12/4 = 2
x/4 + 3 = 2
x/4 = -1
x = -1/4
Solve for [x]. The pair of polygons are similar. The scale factor from A to B is 9:10
Answer:
9
Step-by-step explanation:
if scale factor is 3/5, then
(x+12):35=3:5, ⇒
The value of x in the pair of polygons is 19 .
Given,
Two similar triangle .
Now,
The side of one triangle is 3x -12 .
The side of other triangle is 50 .
As the triangle are similar then the ratio of corresponding sides will be equal to the scale factor .
So,
3x - 12/ 50 = 9/10
3x - 12 = 45
3x = 57
x = 19
Thus the value of x is 19 .
Know more about triangles ,
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There are 90 calories in a 3/4 cup serving of cereal.
How many calories are in 1 cup?
How many calories are in 6 cups?
90
3/4
=1
=6
Answer:
120 calories in 1 cup, 720 in 6 cups
Step-by-step explanation:
I divided 90 by 3 to get 1/4 cup and then multiplied it by 4 to get for one cup. From there I multiplied by 6
Answer:
1 cup=120 calories 6 cups=720 calories
Step-by-step explanation:
We know that there are 90 calories in 3/4 of a cup and we can figure out that 30 calories are in each 1/4 of a cup because 90 divided by 3 equals 30 then just add 30 calories to 90 and get 120. Finally just do 120 times 6 and get 720 .
Simplify the expression:
–2d+–2d+–d
Answer:
-5d
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Terms/Coefficients/DegreesStep-by-step explanation:
Step 1: Define
-2d + -2d + -d
Step 2: Simplify
Rewrite: -2d - 2d - dCombine like terms: -4d - dCombine like terms: -5dThe oz of cheese goes with 8 oz of pasta. How much cheese is used for 3 oz of pasta?
Answer:
0.375
Step-by-step explanation:
1 > 8
x > 3
x=(3×1)÷8 = 0.375
2. Draw a right triangle with side lengths of 6 centimeters, 8 centimeters,
and 10 centimeters, using a protractor to ensure that one angle is exactly
90°. Now make and cut out three squares; one with 6-centimeter long
sides, one with 8-centimeter long sides, and one with 10 centimeter long
sides. Place each square next to the corresponding sides of the triangle,
Which side is the hypotenuse in your diagram?
Answer:
the ten-inch side is the hypotenuse.
Step-by-step explanation:
[tex]a^{2}+ b^{2} =c^{2}[/tex]a= 6
b= 8
c= 10
use substitution to replace the variables in the equation, it should look like this:
36+64=100
the equation above is true, so the answer is that the 10-inch side is the hypotenuse.
*** I couldn't make a diagram on here, so I explained the math. hope this helps
help me out :)) 2(5x-1)+3x !! simplify !!
Answer:
13x-2
lol :)
hope i could helped:)
3. What is the square root of the following numbers?
a) 5
b) 26
c) 86
Answer:
a. 2.2 b. 5.1 if rounded c. 9.3 if rounded
The options are
0
1
2
4
I’ll give brainlest this is URGENT
Answer:
1
Step-by-step explanation:
the line touches the y-axis on the 1
A 6-pack of envelopes costs $0.84. What is the unit price?
Answer:
$.14 is the answer :)
Step-by-step explanation:
.84/6=.14
Answer:
$0.14
Step-by-step explanation:
0.84÷6=0.14
What’s the answer help pls I give brainlest
The ratio of boys and girls in Anyas class is 10 to 15 there are 20 boys how many girls are there
Answer:
Step-by-step explanation:
10 boys..............................15 girls
20 boys...............................30 girls
we just multiply by 2
Robert opens an account with $600. The rate is 4% per year. How long does it take Robert to earn $72? It takes Robert years to earn $72.
Answer:
it takes Robert 3 years to get $72
Step-by-step explanation:
Answer:
$72 i think
Step-by-step explanation:
Write a system of equations to describe the situation below, solve using any method, and fill in the blanks.
Norma is looking for a job cutting hair. One option is self-employment at The Seaside Salon, where she would pay $534 per month to rent a station and keep all of her earnings. Another option is to work at a franchise, where she would just have to pay the salon $3 for every haircut. If she performed a certain number of haircuts every month, the amount paid to either salon would be the same. How many haircuts would that be? How much would Norma pay?
If Norma performed__________ haircuts in a month, she would pay $____________ to either salon.
Answer:
If Norma performed 178 haircuts in a month, she would pay $534 to either salon
Step-by-step explanation:
Saloon 1:
Cost of saloon 1 = $534
Saloon 2:
Cost of saloon 2 = 3h
Where,
h = number of haircut
Equate the cost of renting either saloon
534 = 3h
h = 534 / 3
h = 178 hair cut
If Norma performed 178 haircuts in a month, she would pay $534 to either salon.
1. The coefficient in the term 7xy is (a) 7 (b) 3 (c) 1 (d) 2
2. The coefficient in the term -5x is (a) 5 (b) -5 (c) 1 (d) 2
3. The coefficient in the term 20 is (a) 1 (b) 2 (c) 10 (d) 20
4. The coefficient in the term -20 is (a) -1 (b) -2 (c) -10 (d) -20
5. The coefficient of xy in xy is
(a) 1 (b) -1 (c) 2 (d) 3
6. Which of the following is the numerical coefficient of x2y2?
(a) 0 (b) 1 (c) x2(d) y2
7. The expression x + 3 is in
(a) one variable
(b) two variables
(c) no variable
(d) none of these.
8. The expression x + 3 is in
(a) one variable
(b) two variables
(c) no variable
10. The value of 5x when x = 5 is
(a) 5 (b) 10 (c) 25 (d) -5
11. The value of x² – 2x + 1 when x = 1 is (a) 1 (b) 2 (c) -2 (d) 0
12. How many terms are there in the expression 5xy² ?
(a) 1 (b) 2 (c) 5 (d) 3
13. How many terms are there in the expression 5 – 3xy ?
(a) 1 (b) 2 (c) 3 (d) 5
14. How many terms are there in the expression 7x² + 5x – 5 ?
(a) 1 (b) 2 (c) 3 (d) 5
15. How many terms are there in the expression 5xy + 9yz + 3zx + 5x – 4y? (a) 1 (b) 3 (c) 4 (d) 5
16. Which of the following is the numerical coefficient of -5xy?
I. 5 II. –x III. -5 IV. -y
17. The value of 52 - x2 at x= 7 is
I. 2 II. 3 III. 4 IV. 5
18. In algebra, we use alphabets such as ‘a, b, c’ to denote
a. operational signs c. any numerical value b. constants d. polynomial
(d) none of these.
9. The expression x + y + z is in (a) one variable
(b) no variable
(c) three variables
(d) two variables.
19. The product of 4 and 7p is ———— a. 11p b. 28p c. -28p
Answer:
1. 7
2.-5
4.20
5.1
6.1
7./8.2 variables
9.3variables
10. 25
11.0
12. 1
13. 2
14. 3
15. 5
16. -5
17. 3
18.
19 .28p
hope this helps u
Step-by-step explanation:
I am unable to answer some questions
Solve (x – 3)^2 = 49. Select the values of x.
–46
-4
10
52
Answer:
10
Step-by-step explanation:
The solutions for the equation (x - 3)² = 49 are x = 10 and x = -4.
To solve the equation (x - 3)² = 49, we can take the square root of both sides of the equation to eliminate the squared term.
√[(x - 3)²] = √49
Taking the square root of a square cancels out the exponent, resulting in:
|x - 3| = 7
Now, we have two cases to consider:
x - 3 = 7
In this case, we add 3 to both sides:
x = 7 + 3
x = 10
-(x - 3) = 7
Here, we distribute the negative sign:
-x + 3 = 7
Then, subtract 3 from both sides:
-x = 7 - 3
-x = 4
To isolate x, multiply both sides by -1, remembering to flip the inequality:
x = -4
Therefore, the solutions for the equation (x - 3)² = 49 are x = 10 and x = -4.
To learn more about the quadratic equation;
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Find the missing side in the similar figures below
Answer:
24
Step-by-step explanation:
you would have to do 12 x 1.5 to get 18 then so 16 x 1.5 to get 24
Calysta sells used video games. In addition to a fixed salary, she earns a commission for each video game she sells. The table shows Calysta's total earnings, y, (in dollars), from selling x video games:
Video Games and Earnings
Games Sold (x) Total Earnings (y)
1 78
2 86
3 94
Which equation best shows the relationship between x and y
Answer:y = 8x + 70 got it right on my test
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Which expression is equivalent to (7x3)2(x3)?
Answer:
(21)+(6) is an equivalent expression
Step-by-step explanation:
(7x3)2(x3)
(21)+(6)
Solve the system of equations by the addition method.
5x + 2y = 1
2x - 2y = -8
Answer:
(-1, 3)
Step-by-step explanation:
5x + 2y = 1
+
2x - 2y = -8
7x = -7
x= -1
2(-1) - 2y = -8
-2 - 2y = -8
-2y = -6
y = 3
Only Question #5!
If JKLM is a rectangle, find
Measure NML
Answer;
5. 22°
6. 74°
Step-by-step explanation:
5. Since rectangle JKLM has two equal diagonals that intersect each other, therefore JN = MN.
If JN = MN therefore:
m<NMJ = m<NJM
Thus:
3x + 38 = 7x - 2
Solve for x. Collect like terms
3x - 7x = -38 - 2
-4x = - 40
Divide both sides by -4
x = 10
✔️Find m<NMJ
m<NMJ = 7x - 2
Plug in the value of x
m<NMJ = 7(10) - 2 = 70 - 2
m<NMJ = 68°
✔️Find m<NML;
m<NML = 90 - 68° (Complimentary angles)
m<NML = 22°
6. Diagonal of a rhombus bisects teach vertex angle, this means that <U is divided into two equal parts. Therefore:
10x - 23 = 3x + 19
Solve for x. Collect like terms
10x - 3x = 23 + 19
7x = 42
Divide both sides by 7
x = 6
✔️Find m<RST:
m<SUT = m<RST (opposite angles of a rhombus are congruent)
Thus,
m<SUT = (10x - 23) + (3x + 19)
Plug in the value of x
m<SUT = (10(6) - 23) + (3(6) + 19)
= (60 - 23) + (18 + 19)
= 37 + 37
m<SUT = 74°
Also, m<RST = 74°
how many minutes of practice does one picture represent
1
3. What are the coordinates of the image of Q for a dilation with center (0,0) and scale factor 2?
Answer:
(6,8)
Step-by-step explanation:
Just multiply hope I helpEd
Joseph has a collection of stickers. When the stickers are aranged in piles of 3, there are 2 stickers left over. When the stickers are aranged in piles of 4, there are 2 stickers left over. When the stickers are arranged in piles of 12, how many stickers are left over?
Answer:
2 stickers will be left over
Step-by-step explanation:
To answer the question, all you need to do is figure out at what value of stickers would the remaining stickers be equal to 2 if the piles are made up of either 3 to a set or 4 to a set. To do this, we need to figure out the size of the whole set of stickers.
Lets assume that the total number of stickers is 14. Lets test the 2 given conditions. If we divide it in piles of 3 then we will have a pile of 12 stickers (4 piles of 3 stickers each) with 2 stickers remaining.
Lets test the second condition. If we divide it in piles of 4, we will again have 12 stickers (3 piles of 4 stickers each) with 2 stickers remaining.
Now that both conditions have been satisfied, all we have to do is see how many stickers are left if we make a pile of 12 stickers. In this case, we will have just one pile of 12 stickers and, again, we will be left with 2 stickers.
Therefore, the answer is 2 stickers
Identify the converse of the statement "A → B: If x = 3, then x + 8 = 11." Question 3 options: A) B → A: If x + 8 = 11, then x = 3. B) ∼A → B: If x ≠ 3, then x + 8 = 11. C) ∼A → ∼B: If x ≠ 3, then x + 8 ≠ 11. D) A ↔ B: x = 3 if and only if x + 8 = 11.
Answer: A) B → A: If x + 8 = 11, then x = 3.
In other words, it's the first answer choice.
==================================================
Explanation:
For the general conditional statement [tex]P \to Q[/tex], the converse of this is [tex]Q \to P[/tex]. We flip the antecedent and conditional. We don't negate any of the pieces.
Help! Please!
Which expression is equivalent to the given expression?
−(12y+14)=
−14(1+2y)
14(2y−1)
−2(14y−18)
2(18−14y)
Answer:
- 1/4 ( 1 + 2y)
Step-by-step explanation:
Find the unit rate
Help ASAP
Answer:
The unit rate is 1.15
Step-by-step explanation:
Answer:
The unit Rate is 1.15
Step-by-step explanation: