equivalent to the expression x + 3x + 5x for all values of x?
A.
8x
B.
9x
C.
8x3
D.
9x3
Answer:
9x
Step-by-step explanation:
Since all of them have the same variable you can add them up
1x+3x+5x=9x
Ethan was asked to paint the number of plates
on 100 apartments which means he will have to
paint numbers 1 through 100. How many times
will he have to paint the number 8?
Answer:
10 times
Step-by-step explanation:
8 88
18 98
28
38
48
58
68
78
Answer:
12 times
Step-by-step explanation:
you have to count how many times that the number 8 comes up.
Jim ate 50 cookies yesterday. He ate 3 boxes of cookies and 8 cookies. How many cookies were in each box?
Answer:
Step-by-step explanation:
3b+8c=50c
3b=50c-8c
3b=42c
b=14c
So there are 14 cookies in each box.
Answer:
14
Step-by-step explanation:
First, take away the 8 cookies that were not part of the 3 boxes.
(50 - 8 = 42)
Now we know that 3 boxes of cookies can hold 42 total cookies. However, we need to know how much cookies 1 box can hold. If the 42 cookies are divided evenly between the 3 boxes, our equation would look like this:
42/3 = 14
Therefore, the answer is 14 cookies in each box.
4. Which expression is equivalent to - (6x + 9) - (x - 2)?
A. 5x - 3
B. - 2x + 7.5
C. -4x - 3
D. -4x - 6
this is another math thingy
Answer:
7.15 (two sig figs)
Step-by-step explanation:
There is a time limit dude, googling is a faster way
1. Area of rectangle
A = l*z
2. Find z
93 = 13*z
z ≈ 7.15
Answer:
7km
Step-by-step explanation:
The given figure is a rectangle
The formula to find area of rectangle is,
[tex]l \times b[/tex]
Here,
Length = 13km
Area = 91 km^2
Then breadth = 91/13
= 7 km
. Subtracting a negative number from a positive number is the same as adding a positive number to a positive number.
TRUE OR FALSE
Answer:
false
Step-by-step explanation:
-6+12=6
6+12[tex]\neq[/tex]6
Answer
False
Step-by-step explanation:
Start at 6 , and move 8 units to the left. Subtracting a number is the same as adding its opposite. So, subtracting a positive number is like adding a negative; you move to the left on the number line. Subtracting a negative number is like adding a positive; you move to the right on the number line.
Help due soon will give brainliest
Answer:
J. 9
Step-by-step explanation:
First we have to plot the points (In the picture)
Now we have to count how close the are together which would make it 8.
And the closest to that would be 9.
Hope this helps :)
Answer:
Step-by-step explanation:
The distance between two points is
d^2=(x2-x1)^2+(y2-y1)^2
We have points (-4,-6) and (4,4) so
d^2=(-4-4)^2+(-6-4)^2
d^2=8^2+10^2
d^2=64+100
d^2=164
d=12.8
So H 13 units is closest to the distance between the two points.
Solve the system of equations by substitution.
x+4y=10 x=2y+4
x= y=
x= 6 x= 1
Step-by-step explanation:
hope this helps..........
Given that R=7x+5Y find Y when X=9 and R=35 give your answer as an improper fraction in its simplest form
Please help
Answer:
y = -28/5
Step-by-step explanation:
R = 7x +5y
35 = 7(9) + 5y
35 = 63 +5y
-5y= 63- 35
-5y/-5 = 28/-5
Y = -28/5
Answer:
Y = - [tex]\frac{28}{5}[/tex]
Step-by-step explanation:
Given
R = 7X + 5Y ← substitute X = 9, R = 35
35 = 7(9) + 5Y
35 = 63 + 5Y ( subtract 63 from both sides )
- 28 = 5Y ( divide both sides by 5 )
- [tex]\frac{28}{5}[/tex] = Y
I have no idea what this means ;-; help! NO WRONG ANSWERS PLS
Answer:
Option A. I'm not sure about it.
At a school social, parents attended with their children. Everyone had a choice between a sweet snack and a salty snack. Here is a two-way table showing the number of adults and children who made each choice of snack.
sweet snack salty snack total
adult 57 88 145
child 77 31 108
total 134 119 253
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
what us the answe
re
. In a school 58of the students are boys. If there are 240 girls. Find the total number students in the school
Need help plzzzz ??????????????
P < 4.75 represents the prices p in dollars that Paige is willing to pay for popcorn. The inequality p < 8.00 represents the prices p in dollars that Paige is willing to pay for a movie ticket. At how many theaters would Paige be willing to buy a ticket and popcorn?
Answer:
1 theater
Step-by-step explanation:
Given
[tex]P<4.75[/tex] --- Popcorn
[tex]P < 8.00[/tex] --- Movie
See attachment for the table that shows ticket and popcorn prices at five movie theater chains
Required
The number of theaters that supports the given inequality
The given inequality can be combined to give:
[tex]P < 4.75\ and\ P<8.00[/tex]
From the table entries, only one theater supports this inequality.
Where
[tex]P = 4.25[/tex] --- Movie
[tex]P = 7.25[/tex] --- Popcorn
Which gives:
[tex]4.25 < 4.75\ and\ 7.25<8.00[/tex]
Please help me
In a city all the houses are either three or four storeyed the ratio of the number of three storyed building to four storeyed building is 5:3 if the total number of buildings is 488 find the number of four storeyed buildings.
Start and arguement in the comments LOL
Answer:
Bro u need to shu.t up all ready
Step-by-step explanation:
Calculate the value
of the unknown
coefficient b of a
quadratic equation
when the
discriminant of that
equation is known.
3x² + bx + 2 = 0; Coefficient = 12
Answer:
The value of b is either + 6 or -6
Step-by-step explanation:
Here, given that we have the value for the discriminant, we want to calculate the value for the coefficient of x
mathematically, the discriminant can be calculated using the equation;
D = b^2 - 4ac
a represents the coefficient of x^2 which is 3
b represents the coefficient of x given as b
2 represents the last number
D is the discriminant = 12
So we have that;
12 = b^2 - 4(3)(2)
12 = b^2 - 24
b^2 = 24 + 12
b^2 = 36
b = √36
b = +6 or -6
I need help I don’t understand this at all please
Step-by-step explanation:
[tex] \tan( \alpha ) = \frac{15}{9} = \frac{7}{h } \\ h = \frac{7 \times 9}{15} = 4.2[/tex]
5x^2 – 3x IS SUBTRACTED FROM 3x^2 + 7x
Answer:
2x^2-10x
Step-by-step explanation:
Jason buys 15,000 grams of potatoes at the grocery store. How many kilograms of potatoes does he buy?
Answer:
15 kilograms
Step-by-step explanation:
[tex]15000 \: grams = \frac{15000}{1000} = 15 \: kg[/tex]
Answer: 15 kilogram
Step-by-step explanation:
1000 Gram equal to 1 kilogram
–n2 – 7n + 10 – 8n2 + 1
Answer:
= -7
Step-by-step explanation:
hope it'll help you mark me as brainliest
Answer:
-9n^2 -7n + 11
Step-by-step explanation:
Add like terms, -8n^2 + -n^2 = -9n^2, 10+1 = 11
-9n^2 - 7n +11
The area of a bookmark is 140 square centimeters. The perimeter is 54 centimeters. What are the dimensions of the bookmark?
Answer:
See explanation
Step-by-step explanation:
Recall that all the sides of the square are equal
Hence;
Area of a rectangle= l * b ------- equation 1
Perimeter of a rectangle = 2(l + b)----------equation 2
Area of the rectangle = 140 square centimeters
140 = lb
l = 140/b
Perimeter of the rectangle = 54 centimeters
substituting l = 140/b into equation 2
54 = 2(140/b + b)
Multiplying through by b
54b = 280 + 2b^2
Hence;
2b^2 - 54b + 280 = 0
Solving the quadratic equation
b=20 or b=7
substituting b=20 or b=7 into l = 140/b
l = 140/20 or l = 140/7
l = 7 or 20
THEREFORE;
b=20 cm or b=7 cm
l = 7cm or 20cm
URGENT!!! For quiz now!
Solve the pair of simultaneous equations using matrix methods.
1) x + y =2 , x + y =3
2) 3x + 2y = 14 , x + 4y =12
3) -3x + 2y = -16 , -x - 5y = -10
4) y = 2x - 5 , 7x - 2y =16
Answer:3?
Step-by-step explanation:
Whats the answer to this question lol
Answer:
1/12
Step-by-step explanation:
Multiply 1/2 x 1/6 = 1/12
Which mixed number is equal to 27/6?
Answer:
4 [tex]\frac{3}{6}[/tex]
Step-by-step explanation:
In a class of 147 students, 95 are taking math (M), 73 are taking science (S), and 52 are taking both math and science. What is the theoretical probability of randomly choosing a student who is taking math? Round your answer to the nearest tenth.
Answer:
The correct answer is 64.6%
Step-by-step explanation:
95 student total are taking a math class out of 147 kids. 95/147 = 0.646, carry the decible and you get your percentage which is 64.6%
solve 5sin^2x-1=0
ok
Answer:
to 1 decimal place,. (a) tan (3x + ... (i) 2cos 2x – 5sin 2x = 0 R cos(2x + λ) = 0 λ = 68.2 ⇒ 2x + 68.2 = 90 B1. 2x + λ = ... (16cos2x – 9)(cos2x – 1) = 0.
Help me with this please it’s a very big grade this is half of my grade
Answer:
yeah the graph does match the equation
Answer:
Yes because the y intercept is at -1 like the equation and also can I have brainliest.
Step-by-step explanation:
laura counted 14 red cars in the sales lots of car dealerships. what is the prime factorization of 14
A 2x7
B 1x14
C 2x2x5
D 2x2x2
help, please
Answer:
a is correct
hope this helps
Tony's town had an election last month. 180 people voted in the election and 720 did not vote. What percentage of the people voted?
Answer:
20%
Step-by-step explanation:
180 + 720 = 900 total people in town
180/900 or 180 ÷ 900 = 0.2 or 20%
Hope this helps!