Answer:
8 = 2x + 4collect like terms8 - 4 = 2x4 = 2xdivide both sides by 24/2 = 2x/2X = 2Answer:
x=2 (answer should have a positive sign.)Step-by-step explanation:
To solve this problem, you have to isolate the x from one side of the equation.
First, switch sides.
8=2x+4
2x+4=8
Subtract by 4 from both sides.
2x+4-4=8-4
Solve.
8-4=4
2x=4
Then, divide by 2 from both sides.
2x/2=4/2
Solve.
4/2=2
x=2
The solution is 2.
I am so bad at math so i need help
a) a+b=b+a
the commutative property of whatever number is it turned around
b) a * b= b*a
the commutative property of whatever number is it turned around
c) b+0=b
the additive property is whatever adds to zero is that number.
d) b*1=b
the multiplication property of one is whatever mutilply by 1 is that number.
each bag of cereal should contain 350 grams. a box was selected at random and weighed 342 grams. what is the percent error?
Answer:
the percentage error is 0.02286 x 100% = 2.286%.
Step-by-step explanation:
help me please:(
basically 50 points
Answer:
can you zoom in on the picture!
Step-by-step explanation:
PLEASE give me brainliest i never got it before!!!
Here is to my last q
Answer: D (Mean is 85)
Explanation:
"The list below shows the quiz scores for a group of students.
95, 80, 80, 85, 80, 85, 90"
The choices talk about median and mode so we find those first:
Median: find by taking which is the middle number when the data is from low to highest
1) rearrange them from low to high
80, 80, 80, 85, 85, 90, 95
2) find middle number
80, 80, 80, 85, 85, 90, 95
The median is 85
Mean: mean is the average of all numbers. Find by adding numbers and dividing by amount of numbers
1) add 80, 80, 80, 85, 85, 90, 95 and get 595
2) There are 7 total numbers so do 595/7 = 85
The mean is 85
D is the correct answer
why?
A is wrong because they are 85 not 80
B is wrong because it is 85 not 80
C is wrong because it is 85 not 80
D is right because it is 85!
Dani experimented with a dollar bill and the copy machine a dollar bills length is 6.1 inches and width is 2.6 inches, she reduced the dollar bill so its length was 80% of its original size. What is the length of the copy of the dollar bill? please show how you figured it out :)
In 10^3(exponent), 10 is the base, and 3 is the exponent. That means 10 will appear as a factor 3 times: 10 · 10 · 10. 10^3(exponent) = 1000.
In 2^7, how many times will 2 appear as a factor?
A
2
B
14
C
7
D
9
I am not in a joking mood
DON'T DO ANYTHING DUM
Answer:
[tex]\frac{3}{4}[/tex]
Step-by-step explanation:
Probability of rolling an even number P(A):
[tex]\frac{3}{6}[/tex] = [tex]\frac{1}{2}[/tex]
Probability of flipping tails P(B):
[tex]\frac{1}{2}[/tex]
P(A OR B) = P(A) + P(B) – P(A AND B)
[tex]\frac{1}{2}[/tex] + [tex]\frac{1}{2}[/tex] - ([tex]\frac{1}{2}[/tex] x [tex]\frac{1}{2}[/tex]) = [tex]\frac{3}{4}[/tex]
What is the area of the figure below?
40 mm2
80 mm2
88 mm2
96 mm2
John bought a screwdriver for $7.75 plus tax. The total cost was $8.37. What was the tax rate
Answer:
62 percent
Step-by-step explanation:
[tex]8.37 - 7.75 \\ = 0.62 \\ 0.62 \times 100 \\ = 62\%[/tex]
PLEASE EXPLAIN THIS IM SO CONFUSED (dont send links)
_____________________________________________________
Lyn played a trivia game. She answered 6 questions and received the following scores: 200, -400, 100, -600, 700, and 200. What was Lyn's score?
Answer: Her end score would be 200 points.
Step-by-step explanation:
Add everything together like so, 200+-400+100+-600+700+200 and that equals 200
Can someone please help me find the sum of each interior angle measure of the polygon, and can you please explain. I need help on both of these questions.
Answer:
what are the measures
Step-by-step explanation:
pls help its for a grade and i need to up my grade
Answer:
l
Step-by-step explanation:
A spinner has many equal sections of different colors. The probability that the spinner will not land on a
blue section is 34%. What is the probability that the spinner will land on a blue section?
A 34%
B 66%
C 68%
D can’t be determined
Answer:
B 66%
Step-by-step explanation:
100% (total) - 34% (P(not landing on blue)) = 66%
Don't guess!
I will mark brainliest if its correct!
Don't answer if you don't know!
Also no links!
Answer:
The answer is Graph F
Graph F is the answer because it says that every hour Juana spends reading books, she reads 0.25 hours reading magazines. This means that in 2 hours she's spent 0.5 hours reading magazines, and the data points continue in that order.
Answer:
f
Step-by-step explanation:
A restaurant placed a 2- quarter pitcher of water on each 76 tables. the water was severed from from a 50- gallon containter. How many QUARTS of water remained in the 50- gallon container after all ther pitchers were filled
(4 quarts=1 gallon)
Answer:
There would be 12 gallons left
Step-by-step explanation:
If there was 76 of the 2 quarter pitchers that would make 152 Qt and 152 Qt equals 38 gallons so 50 - 38 = 12
Part of the population of 5,750 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 10 of them are infected. How many elk are likely to be infected?
Based on the sample, there will likely be infected elk in the wildlife preserve. List the next 4 multiples of the fraction 5/6
Answer:
575
Step-by-step explanation:
If a sample of 50 is selected and ten out of that are infected, dividing you would get my answer. To get it, divide the sample amount that were infected by the whole amount. I am unsure if this is correct but fingers crossed this helps. Feel free to talk it through with me.
what category does all these shapes belong to?
Answer:
rectangle
Step-by-step explanation:
plz mark brainliest
Answer:
Step-by-step explanation:
Help please ill make brainliest
Answer:
1) Dots
2) Blank
3) Stripes
4) Stars
Step-by-step explanation:
Total = 30
1)
6/30 = 1/5
2)
8/30 = 2/15
3)
12/30 = 2/5
4)
4/30 = 2/15
HELPPPPPPPPPPPPPPPPPPPP!!!!!!!!
Answer:
y+1 = -1/3(x+3)
Step-by-step explanation:
we can use this formula to answer this question
y-y1 = m(x-x1) where y1 and x1 indicate the coordinates of the point and m indicates the slope
y-(-1) = -1/3(x-(-3)
y+1 = -1/3x-1
y = -1/3x -2
Here is questions for you because such thing as spring break is over ;)
Answer:
I don't now why but by seeing this photo my mouth is watery
Answer:yes
It I’ve it started on 29 and end on Monday
What is the multiplicative inverse of the number 5?
Use the scale drawing to determine how wide the duck pond is?
pls hurry
b. Write an equation that shows the relationship 64% of
y is 40.
c. 45 of x is 72 find the value if x
B.
[tex]0.65 \times y = 40 \\ y = \frac{40}{0.65} [/tex]
C.
[tex].45 \times x = 72 \\ x = \frac{72}{.45} \\ x = 160 \\ 45 \: percent \: of \: 160 \: is \: 72[/tex]
Jessica buys a computer that originally cost $1,015 using a 20% off coupon. Sales tax in her city is 5%. How much will she pay for the computer? Show/explain how you know!
Answer:
852.6
Step-by-step explanation:
Please solve them pls
Pls you don’t need to show work hurry pls it’s due soon plsss I beg I’ll give braniesy and likes
Answer:
6: degree is 1
Helps?
USE THE SQUARE ROOT PROPERTY!!!!!
the sides of a square are reduced by 2 inches. the new area is 20 square inches. Set up and solve an equation to find the original length of the square
Answer:
Step-by-step explanation:
x = original length of one side
(x-2)² = 20 inches²
x-2 = ±√20 = ±2√5
x = 2±2√5
2-2√5 is an extraneous solution,
so x = 2±2√5 ≈ 6.47 inches
How do i do this and help me! Fast!!!
Answer: 1. 7, 2. 0, 3. 4, 4. 7, 14
Step-by-step explanation:
1. (3+4)+7=14 3+(4+x) x=7 14-3+4
2. 15+0=15 15-15=0
3. (4x12)x6=288 Yx(12x6) 12x6=72 288/72= 4
4. (2x7)x5=70 2x(Yx5) 2x5=10 70/10=7 Y=7
5. 14x35=490 490/35=14
If q (x) = 2(x - 1)^2+ 5, what is the value of q (-3)?
A. 13
B. 23
C.37
D. -3
Show the work please
In Friday’s volleyball game, Sam’s team scored a point in 16.5% of his serves. Which of the following statements is true?
A.
The team scored in more than 1/6 of Sam's serves.
B.
The team scored in less than 1/10 of Sam's serves.
C.
The team scored in exactly 1/7 of Sam's serves.
D.
The team scored in more than 1/8 of Sam's serves.
Answer:
D. The team scored in more than 1/8 of Sam's serves.
Step-by-step explanation:
1/8 = 1/8 x 100% = 12/5%
The team scored in more than 1/8 of Sam's serves
hope this help
