Answers
Answer:
The expression is: [tex]-30n + 70 = -80[/tex]
Step-by-step explanation:
Given
[tex]n = 5[/tex]
Multiply both sides by 3
[tex]3 * n = 5 * 3[/tex]
[tex]3n = 15[/tex]
Subtract both sides by 7
[tex]3n - 7 = 15 - 7[/tex]
[tex]3n - 7 = 8[/tex]
Multiply both sides by -10
[tex]-10(3n - 7) = -10*8[/tex]
[tex]-30n + 70 = -80[/tex]
To verify: Substitute 5 for n
[tex]-30 * 5 + 70 = -80[/tex]
[tex]-150 + 70 = -80[/tex]
[tex]-80 =-80[/tex] ---- Verified
Related Questions
Please Help :))
Find the value of x in each pair of similar figures
Answers
Answer:
21
Step-by-step explanation:
set up proportion and solve
18/12=x/14 (cross multiply)
252=12x
21=x
Please answer question on picture above.
Answers
Answer:
d the last one i think.
Step-by-step explanation:
Hope this helps have a good day!
Find the price please
Answers
Answer:
the answer is 45% that what I got at least
HELPPPP ILL: MARK BRAINLIEST IF I CAN OR GET TWO ANSWERS
Answers
Answer:
o is the answer as it passes through origin
A
8
B
7
D
С
CD = [?]
Answers
a Zoo ticket cost $13 for adults in about $8 for students if a company of 125 people wanted to take his employees to the zoo how much would they have to pay
Answers
Answer:
Assuming there all adults, it would be $1625
Step-by-step explanation:
If the radius is 52 inches, what is the diameter?
Answers
Answer:
52×2 = 104 inch as per the question
Answer:
104 inches
Step-by-step explanation:
52x2=104
In order to find the diameter using radius, just multiply the radius by two. In order to find the radius using diameter, divide by two.
Mark this brainliest if it helped you out. :D
8. What is the 10th term of the geometric sequence
a(n)= -3(2)^x-1
a. -54
b. -3,072
c. -10,077,696
d. -1,536
Answers
Answer:
n=10
a10= - 3 (2)^(10-1)= -3(2)^9
= -1536
Tyrone walked 8 miles in a walkathon at a speed of 2 miles per hour. How long was he walking?
4 hours
6 hours
10 hours
16 hours
Answers
Answer:
4 hours
Step-by-step explanation:
Answer:
the answer is 4 HOURS
Step-by-step explanation:
i took the exam
This should be easy
Answers
Answer:
69
Step-by-step explanation:
it's the holy number jesus christ can confirm
Answer:4
Step-by-step explanation:
What do you get when you cross an electric eel and a sponge puzzle time riddle
Answers
Answer:
A shock absorber?
Step-by-step explanation:
Find the GCF of 21m∧5n∧2 and 28m∧4n∧2.
Answers
Answer:21m, 5n, 2=1
28m, 4n, 2=2
Step-by-step explanation:
Use long division to solve for n. 6,588 ÷ 4 = n
Answers
Answer:
n = 1647
Step-by-step explanation:
Answer:
n = 1647
Step-by-step explanation:
Im timed make it quick
A biology student wanted to determine if using fertilizer would promote plant growth. One hundred plants were randomly assigned to one of two groups: one that used the fertilizer, and one that did not use a fertilizer.
Which of the following is a benefit of having replication in the experiment?
A Having a large number of plants receiving the treatments will allow for a good comparison of the differences in plant growth between the two groups.
B Having a large number of plants receiving the treatments will not allow for a good
comparison of the differences in plant growth between the two groups.
C Replication is not needed in this experiment. One plant receiving each type of treatment is enough to determine if the difference in plant growth is due to the fertilizer.
D Repeating the experiment will allow the student to compare the differences between the plants that received the fertilizer the first time and the plants that received the fertilizer the second time.
Answers
Answer:
It's A
Yeah Boy edge 2020
Step-by-step explanation:
What is the slope to this?
Answers
Answer:
hozlatie
Step-by-step explanation:
Five full creates of walnuts weigh 195 pounds, whereas an empty crate weighs 10 pounds. How much do the walnuts alone weigh?
Answers
195/ 5= 39, so each crate weighs 39 pounds. Subtracting 10, the walnuts in each crate weigh 29. Since there are 5 crates, multiply 5 by 29 and you get 145 pounds.
help don't answer if you don't know
Answers
Answer:
not 100% confident but I think this is at least close
Step-by-step explanation:
solve for one variable
1. x-5y=2
x=2+5y
plug this in to another equations and simplify
2. (2+5y)-y=16
2+4y=16
4y=14
y=3.5
this can be plugged in to all other equations to find x
1. x-5(3.5)=2
x-17.5=2
x=19.5
2. x-(3.5)=16
x=19.5
3. 2x-(3.5)=5
2x=8.5
x=4.25
4. x-3(3.5)=4
x-10.5=4
x=14.5
convert 5/4 into a decimal
Answers
Answer:
Step-by-step explanation:
The answer is 1.25
Sunflower we haved renewed your helper thank you with working with our business
Answers
Answer: wdym? do u need any help
Step-by-step explanation:
Choose an equivalent ratio. 5:7
A) 7:9
B) 10:14
C) 14:15
D) 15:23
Answers
Answer:
B
Step-by-step explanation:
5:7
5×2 = 10
7×2 = 14
10:14 = 5:7
Use the two bar graphs to answer the following experimental compound events. What is the
experimental probability of rolling a 2 and spinning 2?
- 6/625
- 4/250
- 24/2500
- 6/50
Answers
Answer:
24 / 2500
Step-by-step explanation:
Experimental probability = (number of successes / total number of trials)
For rolling :
Total number of trials = ( 10 + 4 + 8 + 11 + 8 + 9) = 50
Number of times 2 is rolled = 4
P(rolling a 2) = 4 /50
For spinning :
Total number of trials = (8 + 6 + 9 + 11 + 9 + 7) = 50
Number of times 2 is spunned = 6
P(rolling a 2) = 6 /50
Hence,
4 / 50 * 6/50 = 24 / 2500
Solve and graph 3<5 + X
Answers
Answer:
i think it is 5
Step-by-step explanation
srry if its not:(
Why do you think most people who have lived
on our planet would have been suspicious of negative
numbers?
Answers
Answer:
I do not know
Step-by-step explanation:
I guess because negative represents going down :/
Please answer this correctly without making mistakes
Answers
What is the value of y in this triangle?
Answers
Answer:
value of y in triangle is D. 36° okay
Compute the mean of the following population values:
6, 3, 5, 7, 6.
Answers
Answer:
The mean (average) is 5.4 or 5 if you're rounding.
Step-by-step explanation:
Mean is the average of all of the numbers.
Add them up: 6+3+5+7+6 = 27
Divide 27 by the amount of numbers you have(5): 27/5
Solve: 5.4
The mean of the given values 6, 3, 5, 7, and 6 will be 5.4.
What is mean?mean is the average of a data set. Mean gives us the idea of that how much amount of overall data have.
Mean = sum of data / Number of data
For example, if you have marks in 5 subjects like 40,45,44,46,48 then the mean will be
( 40 + 45+ 44 + 46 + 48) /5 = 44.6.
Given the data set;
6, 3, 5, 7, 6
Mean = (sum of data) / (number of data)
Mean = (6 + 3 + 5 + 7 + 6)/5
Mean = 27/5
Mean = 5.4
Hence the mean will be 5.4.
For more about mean
https://brainly.com/question/17060266
#SPJ2
Alexi's restaurant bill is $58, and he wants to leave a 20 percent tip. Which expression represents the total amount that
Alexi needs to pay?
O $58(0.20) + $58
O $58(0.20)
O $58(20) + $58
O $58(20)
Answers
Answer:
Here Is Your Answer $58(20)
CAN ANYONE HELP ME PLEASE!!!!!!
Which of the following points is in the solution set of y < x²- 4x + 3?
A. (-3,0)
B. ( 1, 0)
C. (2,-1)
Answers
3d - 5+4d +5=140 how do i solve this i need help
Answers
Answer:
3
−
5
+
4
+
5
=
1
4
0
3d{\color{#c92786}{-5}}+4d+{\color{#c92786}{5}}=140
3d−5+4d+5=140
3
+
4
=
1
4
0
3d+4d=140
3d+4d=140
2
Combine like terms
3
+
4
=
1
4
0
{\color{#c92786}{3d}}+{\color{#c92786}{4d}}=140
3d+4d=140
7
=
1
4
0
{\color{#c92786}{7d}}=140
7d=140
3
Divide both sides of the equation by the same term
7
=
1
4
0
7d=140
7d=140
7
7
=
1
4
0
7
\frac{7d}{{\color{#c92786}{7}}}=\frac{140}{{\color{#c92786}{7}}}
77d=7140
4
Simplify
Cancel terms that are in both the numerator and denominator
Divide the numbers
=
2
0
d=20
d=20
Solution
=
2
0
hope it help
Step-by-step explanation:
Answer:
the answer is 20
Step-by-step explanation: combine like terms
7d = 140
then divide
140/7
20
1-i need to mix 25% mineral spirits to the varnish i am using what ratio of spirit to varnish am i using? 2-if i use 240 ml of varnish what quantity of mineral spirits will i need in ml ? 3-Robison's tapestries all measure 1.5m x 1m wide. Express the proportion of the tapestries' heights to width using whole numbers. Give the answer in ration.
Answers
Answer:
(1) The required ratio of spirit to varnish is 1:3.
(2) You need 80 ml of mineral spirit.
(3) The ratio of tapestries' heights to width is 3:2.
Step-by-step explanation:
(1) If you need to mix 25% mineral spirit to the varnish, then the solution would contain 25% mineral spirit and 75% varnish.
So, [tex]\frac{spirit}{varnish}=\frac{25}{75}[/tex]
[tex]=\frac{1}{3}[/tex]
Thus, The required ratio of spirit to varnish is 1:3.
(2) If you use 240ml of varnish, then this quantity is 75% of the total solution or ration of varnish to the total solution will be 3:4.
Let [tex]x[/tex] be the quantity of total solution.
Then, [tex]240:x=3:4[/tex].
⇒[tex]\frac{240}{x}=\frac{3}{4}[/tex]
⇒[tex]3x=240*4[/tex]
⇒[tex]x=\frac{240*4}{3}[/tex]
⇒[tex]x=320[/tex]
That is, total solution is 320 ml.
Now, Spirit = Total solution - Varnish
⇒Spirit = 320ml-240ml
⇒Spirit = 80ml
Hence, if you use 240 ml of varnish, you need 80 ml of mineral spirit.
(3) Robison's tapestries all measure 1.5m long and 1m wide. First, we express dimensions in whole numbers by multiplying them by 10.
Then, dimensions are 15m long and 10m wide.
Now, Height : Width = 15:10
⇒[tex]\frac{Height}{Width} =\frac{15}{10}[/tex]
⇒[tex]\frac{Height}{Width} =\frac{3}{2}[/tex]
Hence, the ratio of tapestries' heights to width is 3:2.