Answer:
It is decreased by 3.25
Step-by-step explanation:
When you add all 8 numbers you'll get 58 then you divide them by 8 you will get 7.25 which is the mean. To find out what is the decrease we need to take out the 30 and add all the other numbers and we get 28. After that you divide 28 by 7 and you get 4. Subtract 4 from 7.25 and you get 3.25.
2+2+2+3+5+6+8+30=58
58/8=7.25
2+2+2+3+5+6+8=28
28/7 = 4
7.25-4=3.25
Simplify: -7 • 12
Giving brainliest^^
A) -84
B) -74
C) 74
D) 84
3. What is the perimeter of the composite figure below? Round your answer to the nearest whole number.
do it step by step
Can you tell me if this equation I made for a project is correct?
x-13=7
x-13+13=7+13
x=20
Can you help me fix it if it is not correct?
THANK YOU
PLEASE HELP!!!!! AND TAHNK YOU
Answer:
a= 68% times 250, there are 170 students not in Advanced
Step-by-step explanation:
If 32% are in Adv math, 68% aren't, to solve a percentage, I did
.68 times 250
what is the sum of 16/100 + 6/10
The grocery store has 2 1/3 times as many cashiers in late afternoon than in the morning. If there are 21 cashiers at 10:00 am, how many would there be at 4:00 pm?
What is the fractional equivalent of 1.37?
Answer:
137/100
Step-by-step explanation:
1.37 ( to fraction)
divide by 100
137/100
will give branliest
write 5(7j + 6 + 3j) into a verbal expression
50j+30 is the answer
Answer:
16j + 12
Step-by-step explanation:
I dont understand this-
(Look at picture below
Expand the expression 3(5p+1) using the distribution property
PLEASE HELP
Answer:
15p + 3
Step-by-step explanation:
Multiply 3 by each number in the parentheses and keep the variable
Using the distribution property 3(5p + 1) is 15p + 3.
What are the basic properties of arithmetic laws of operations?There are three types of basic arithmetic laws of operation.
Commutative law for addition and multiplication states,
a + b = b + a.
a×b = b×a.
Distributive law states,
a(b ± c) = ab ± ac.
Associative law states,
a + (b + c) = (a + b) + c.
Given, An expression 3(5p + 1).
= 3×5p + 3×1.
= 15p + 3.
learn more about the distributive property here :
https://brainly.com/question/5637942
#SPJ2
Task:
Engineers are digging a 3200-foot-long tunnel at a constant rate. After 5 months, the engineers still need to dig 1700 feet to finish the project. How much time does it take to complete the tunnel from start to finish?
Will the engineers have enough time if the project was started in December 2020 and the deadline to finish the project was in August 2021? Please explain your answer for yes or no.
Hint:
y=mx+b (slope-intercept form)
x=time
y=distance
b=3200
Start & Finish: ??
Total length=3200ft
Answer:
318 days or 10.6 months,
No, because the time between august and december is 8 months and it would take 10 to complete the tunnel
Step-by-step explanation:
start by determining the slope:
subtract the remaining distance from the total distance to determine distance so far, then divide by time.
m = (3200 - 1700)/5
m = 1500/5
m = 300
y = mx + b
Plug in to solve for x.
3200 = 300x + 0
3200 = 300x
divide y by m. This is x. (this is known as inverse operation if you didnt know already.)
3200 = 300(10.6_)
350% of 69 is what number
Answer:
241.5
Step-by-step explanation:
If you didn't know of in math means to multiply.
350% of 69
=350/100 ×69
=241.5
PLEASE HELP ASAP !!! <33
Answer:
30
Step-by-step explanation:
I THINK MY BEST ESTIMATE HOPE IT HELPS THOO :))
Find the value of y.
Answer:
155 - 13 = 142 -90 = 52
Step-by-step explanation:
MUST EXPLAIN OR NO BRAINLIEST :)
7) Write an expression which represents the difference when (7x-5y) is
subtracted from (-8x-8y) in simplest terms.
Answer:
-15x-3y
Step-by-step explanation:
Lets set it up first:
(-8x-8y)-(7x-5y)
now, remove the parenthesis while distributing the negative
-8x-8y-7x+5y
next, combine like terms
-15x-3y
HELPPPPPPPPPPP!!!!!!!!!!
Answer:
(4, 9) and (7,343)
help..............................
Answer:
w=22
Step-by-step explanation:
just get w by itself
3w=66
3w/3=66/3
w=22
Answer: 22
Step-by-step explanation:
3x22=33
i need help with dis math
Carlos designs a simulation to represent kicking 5 field goals in a single game with a 72% probability of making each one. A 1 represents making the kick and a 0 represents missing the kick. Carlos uses 25 blocks and labels each one with a 1 or a 0. How many of each block should he use to represent this situation? Explain.
NEED ANSWER ASAP WILL GIVE BRAINLIEST
eAnswer:
e
Step-by-step explanation:
Explain or Show Work for how to solve 10 > 2x - 6. Give your solution as an inequality. *
Answer:
X < 8
Step-by-step explanation:
I moved the numbers around to -2 >-6 -10
Then found the answer to -2x> -16 which then got me my answer of x < 8
Dr. Molar is the best dentist in town. 60% of his paitents are female. He has 120 female paitents. How many paitents does he have in all?
Answer:
200 patients
Step-by-step explanation:
120 =60% means that
2=1%
1% x 100 = 100%
2 x 100 = 200
200 total patients
120 Female
80 Male
Kelly drew the angle shown,
which value is closest to measurement of Kelly's angle?
Answer:
70°
Step-by-step explanation:
it's an acute angle so it couldn't be 110 since that would make it obtuse.
Please can you explain
Answer:
its 3
Step-by-step explanation:
help i will give 20 points!!
1)What if you have two equations equal to y? How do you solve for x?
2)If you need to solve for a variable to substitute, what is your first step?
3)What does it mean to substitute for a value?
Answer:
Step-by-step explanation:
If you have two equations for y, eliminate y by setting these two equations equal to one another. Solve the resulting equation for x. Then substitute your x value into one of the equations for y. Write your solution as (x, y).
2) If you need to solve for a variable to substitute, what is your first step? Example: If you have two equations for y, eliminate y by setting the two equations equal to each other. This decides for you that you must solve for x.
3) What does it mean to substitute for a value? Example: If you have y = 3x and 2x + y = 17, replace y in the second equation with 3x. This eliminates y and allows you to solve for x.
Help me plsssssssssss
Answer:
It is 1404
18720
Step-by-step explanation:
True or False? A convenience sample is always valid and reliable.
Answer:
a convenience sample is always valid and reliable is true not false
Step-by-step explanation:
Which net represents the figure? I'll Give Points If The Answer Is Right.
Answer:
B
Step-by-step explanation:
Simplify: 26 • -5
Giving brainliest^^
A) 130
B) 21
C) -105
D) -130
The answer is D because 26*5 is equal to 130,amd b/c we have - 5 the answer we have should be minus.
Hope you understood
I dont know this. plz help
Answer:
[tex] \huge \colorbox{red}{y = x + 3}[/tex]Step-by-step explanation:
to understand thisyou need to know about:linear equationPEMDASgiven:b=3let's solve:linear equation slope intercept form:
[tex]y = mx + b[/tex]m is 1 in this question
therefore
substitute the value of m and b
y=x+3Answer:
y = x + 3
Step-by-step explanation:
The given graph indicates that the y-intercept of this line is 3 (that is, b = 3). The y-intercept is also represented by (0, 3). The graph also goes through (-3, 0). The 'run' is the jump of the x-coordinate from -3 to 0, and thus is 3; the 'rise' is the jump of the y-coordinate from 0 to 3, and is thus 3. Therefore, the slope of this line, m, is rise/run, which here is m = 3/3, or just 1.
The slope-intercept equation y = mx + b is therefore y = x + 3.
I would suggest you write out your objective before attempting problem solution. In this case, write out "find the equation of the line shown in this graph, in slope-intercept form."