Answers
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.
Step-by-step explanation:
Related Questions
A hummingbird weighed w ounces. One day the hummingbird drank 8 times its weight in water and ate half its weight in food. Which equation can be used to find t, the combined weight of the water and the food, in ounces, that the hummingbird had on this day?
t = w + 8 - 1/2
t = w +8 + 1/2
t = 8w + w/2
t = 2w + 2/8
The "/" represent fractions not dividing
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i hope this helps :)
Help me pls ! if you do l give you the brainiest
Answers
The two expressions in answer A are equivalent with each other.
What is the slope of this line?
Enter your answer as a whole number or a fraction in simplest form in the box.
Answers
Answer:
0
Step-by-step explanation:
As evident by the graph, nowhere does the line have any sort of slope. So, the slope must be zero.
y = mx + b
y = 2 (m, slope, is zero and b = 2, the y-intercept)
find the perimeter of the shaded figure.
Answers
Answer:
38
Step-by-step explanation:
Count the unit squares for each side, starting from the left it's 7, 10, 7, 2, 2, 6, 2, and 2
Now add them together:
7 + 10 + 7 + 2 + 2 + 6 + 2 + 2 = 17 + 9 + 8 + 4 = 26 + 12 = 38
Answer: 38 units
Step-by-step explanation: Perimeter is asking for the total length of all the sides that make up a figure. The top border is 10 units, the two outer sides are 7 each (14 in total), if you add all the downward facing edges you get another 10 units, and the two inside sides are 2 units each (4 in total).
10+14+10+4 = 38
Which of the following equations represent linear functions?
The picture will be shown
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PLEASE help ASAP will give brainlist
Answers
Answer:
if im not mistaken it would be 6
Step-by-step explanation:
because you half the 18
bakaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Answers
Answer:
So true!!
Explanation:
Answer:
He is my favourite justin beber
I love him too much
Samantha was training to play basketball. She threw the ball 19 times. Gabrielle wrote down all Samantha's throws and for all the ones who got in the basket she added 5 points. For all the throws that weren't successful, she got rid of 3 points. At the end Samantha got 55 points. How many times did Samantha throw the ball in the basket successfully?
Answers
Answer:
15 times.
Step-by-step explanation:
5 x 14 = 70 points
3 x (19-14) = 3 x 5 = 15 points
70 points - 15 points = 55 points.
Derek wants to ship items that weigh a total of 7 pounds, and Keisha wants to ship items that weigh a total of 10 pounds. How much more does Keisha pay for shipping than Derek? $4.50 $6.00 $9.50 $12.00
Answers
Answer:
what are the shipping costs?
Answer:
the answer is A. 4.50
Step-by-step explanation:
$2,300 invested at 7.5% for 10 years. In simple interest
Answers
Answer:
here's the answers............
What is the y-intercept of the graph of the linear function?
Answers
Answer:
Your y-intercept will be -6
Step-by-step explanation:
Answer:
- 6
Step-by-step explanation:
The y-intercept of a graph is the point on the graph where the line crosses the y-axis (vertical line). In this case, it was -6.
**please mark brainliest!!
What triangle is this ????Pleaseeee helppp !!!!!!!!!! Will mark Brianliest correct answer !!!!!!!!!!!!!!
Answers
Answer: equilateral
Step-by-step explanation:
Answer:
equalateral (i know i spelled it wrong)
Step-by-step explanation:
they all have the same lengths -6.07-
Pennies made after 1984 weigh 2.5 grams. How much would 10 pennies weigh?
Answers
Answer:
25 grams
Step-by-step explanation:
Pennies made after 1984 weigh 2.5 grams. How much would 10 pennies weigh?
From the above question:
1 penny = 2.5 grams
10 pennies = x grams
Cross Multiply
1 × x grams = 10 pennies × 2.5 grams
x grams = 25 grams.
Hence, the weight of 10 pennies is 25 grams
Twenty (20) is what percent of 10% of 4,000?
Answers
Answer:
400
Step-by-step explanation:
Answer:
5%
Step-by-step explanation:
Caroline, Colin & Sarah share some money. Caroline gets 1 /9 of the money. Colin and Sarah share the rest in the ratio 1:3. What proportion does Colin get?
I need this ASAP. Will award brainliest answer.
Thanks
Answers
Answer:
2/9
Step-by-step explanation:
Caroline gets 1/9 of the money, so the 8/9 remaining is split 1:3 between Colin and Sarah. Colin gets 1/4 of the remaining money then.
1/4 * 8/9 = 8/36= 2/9
Answer:
2/9
Step-by-step explanation:
amber must make up a vocabulary quiz. she can take it during her lunch or after school on wednesday, thursday, or friday. The tree diagram shows the possible combination of the times she can make up the quiz
Answers
Answer:
6
Step-by-step explanation:
I need help with an explanation
Answers
Answer:
18
Step-by-step explanation:
First add what you do know: -2 + 9 = 7
Next, to find the answer subtract that from 25 to find what is left over and that is you answer!
25-7=18
Hope that helped!! :)
8(2 + t) - 5(t - 1)
do you guys know the answer i need help you guy
Answers
Answer:
21 + 3t
Step-by-step explanation:
Use distributive property: a*(b +c) =(a*b) + (a*c)
8(2 +t) - 5(t - 1) = 2*8 + t *8 + t *(-5) - 1*(-5)
= 16 + 8t -5t + 5
= 16 + 5 + 8t - 5t {Combine like terms}
= 21 + 3t
One less than 6 times a number is the same as the number plus 14.
find the equation
x=
Answers
Mr. Smith is 81 years older than his grandson, Victor. In 3 years, Mr. Smith will be four times as old as Victor. How old is Victor now?
A) 21 years old
B) 22 years old
C) 24 years old
D) 27 years old
Answers
After 3 years 4(x+3)= x+81+3
4x+12= x +84
4x-x= 84–12= 72
3x = 72. Or x = 24
Now Victor's age is 24 and Mr. Smith is 105
In three years Victor will be 27and Mr. Smith will be 108 (four times of 27)
using the elimination method to solve the system of equations.
3x+6y =36
3x-6y=0
a. 3,6
b. 6,-3
c. 6,3
d. 3,-6
Answers
Answer:
c. (6, 3)
Step-by-step explanation:
subtract
3x + 6y = 36
3x - 6y = 0
12y = 36, y = 3
3x + 6(3) = 36
3x + 18 = 36
3x = 18, x = 6
x = 6, y = 3
Answer:
the answer is b good luck
Graph the equation y=2x+1
Answers
Answer:
hope it helps
Step-by-step explanation:
in the grid below, the vertices of triangle ABC are A(-1,9), B(7,2), and C(-1,2). Which is closest to the area of triangle ABC? ASAP
Answers
Answer:
28
Step-by-step explanation:
►Solve the problems.
I
The tile floor in a restaurant is being replaced. The dimensions of the floor are
shown. What is the total area of the new tile floor in the restaurant?
12 ft
17 ft
15 ft
20 ft
A 64 ft2
B 180 ft2
C 240 ft2
D 300 ft
Answers
A=16.7
B=17
C=23
D=7
Answers
Answer:
17
Step-by-step explanation:
In this problem, you can use the Pythagorean Theorem to find the hypotenuse, which is x. The formula for the Pythagorean Theorem is: [tex]a^{2} +b^{2}=c^{2}[/tex], where a and b are the two lengths of the triangle, and c is the hypotenuse (which is x).
Steps:
-We know the two sides already, which are 15 and 8, so we can substitute a and b into the equation: [tex]15^{2} +8^{2}=c^{2}[/tex] (the c is the same as x, just letting you know)
-Then, simplify the equation to get: [tex]225+64=x^{2}[/tex] (I replaced c with x just so you can understand better that we are trying to find x, the hypotenuse)
-Add the 225 and 64 to get: [tex]289=x^{2}[/tex]
-Find the square root of both sides to get x by itself: [tex]\sqrt{289}=\sqrt{x^{2}[/tex]
-Evaluate the equation to get: [tex]\sqrt{289} =x[/tex] which simplifies to [tex]17=x[/tex]
Answer: 17
Hope you understand and that this helps with your question! :)
What happens to the graph of f(x) when it is multiplied
by a number between 0 and 1?
Answers
Answer:
Therefore multiplying x by a number between 0 and 1 creates a horizontal stretch, which looks like a vertical compression. That is, the parabola will be shorter/wideStep-by-step explanation:
Answer:
Therefore multiplying x by a number between 0 and 1 creates a horizontal stretch, which looks like a vertical compression. That is, the parabola will be shorter/wider
Step-by-step explanation:
hope it heped
Is it possible to buy a half of a ticket?
Answers
if the polynomial p(X)=x⁴-2x³+x²-1 is divided by (X+1), then the degree of quotient polynomial.
a) 1. b)3. c) 4 d)2
Answers
Answer:
3.
Step-by-step explanation:
Cancel all out and you will get 3.
x+1/x⁴-2x³+x²-1
81-64+7-21=3
Hope this helps :D
please help me with this please
Answers
Answer:
the answer is 14 so I need jdjdjrjrjrekeiwodbf jcjcix
Answer:
the answer would be 14
Step-by-step explanation:
The table is going by 4's
a regular square pyramid is 3m height and the perimeter of its base is 16m find the volume of the pyramid
Answers
Answer:
Volume=1/3×Area of base×Height
=1/3×16×3
=16m square
Step-by-step explanation: