Answer:
s = 5.1
Step-by-step explanation:
[tex]0.7 (3s + 4)-1.1s = 7.9\\[/tex]
Multiply both sides of the equation by 10
[tex]0.7\left(3s+4\right)\cdot \:10-1.1s\cdot \:10=7.9\cdot \:10\\\\= 7\left(3s+4\right)-11s=79\\[/tex]
Expand
[tex]\mathrm{Expand\:}7\left(3s+4\right)-11s:\\\quad 10s+28[/tex]
Subtract 28 from both sides
[tex]10s+28-28=79-28[/tex]
Simplify
[tex]10s=51[/tex]
Divide both sides of the equation by 10
[tex]\frac{10s}{10}=\frac{51}{10}[/tex]
Simplify
[tex]s=\frac{51}{10}\\\\Decimal = 5.1[/tex]
Connor bought a baseball card eight years ago that has depreciated by $120 since he purchased it. Find the average yearly change in value of the card.
Answer:
The average yearly change in the value of the card is $15/year
Step-by-step explanation:
Here in this question, we are interested in calculating the average yearly change in the value of the card.
From the question, we can see that the value of the baseball card has depreciated by $120, thus we simply want to calculate the average yearly charge in the card value.
Mathematically, that would be ;
the total depreciation value/ number of years
From the question, the total depreciation value is $120 while the number of years is 8
Thus; the average yearly change in value of the card = 120/8 = $15/year
k (n) = 4n – 4; Find k (8)
28
4
-32
-24
The answer
Answer:
Step-by-step explanation:
k(8) = 4(8) - 4
= 32 - 4
= 28
answer is A
Are the following two expressions the same? [tex]-(4t^2 -16t - 20)[/tex] AND [tex]4t^2 - 16t - 20[/tex]
Answer:
NoStep-by-step explanation:
Use - to open the bracket
[tex] - (4t^2 -16t - 20) = \\ - 4 {t}^{2} + 16t + 20[/tex]
Compare the two
: They are not the same
[tex]4t^2 - 16t - 20[/tex]
Note :
[tex] - \times - = + \\ + \times - = - \\ + \times + = + \\ - \times + = - [/tex]
Solve the equation 8x
- 5 = 7.
Answer:
[tex]8x - 5 = 7[/tex]
[tex]8x = 7 + 5[/tex]
[tex]8x = 12[/tex]
[tex]x = \frac{12}{8} [/tex]
[tex]x = \frac{3}{2 } \: or \: 1.5[/tex]
Write the equation of the line, with the given properties, in slope intercept form slope = -2, through(-4,7)
Answer:
y= -2x + 7
Step-by-step explanation:
So in slope intercept y will always equal something so you start with
y= mx + b
m = slope and b = y-intercept
so in this case it would first be
y = -2x + b
and then since we have the point it passes through (-4,7) we know that the line passes through the y axis at 7 hence the y value is 7.
so you finally get
y=-2x+7
The equation of line passes through the point (-4, 7) will be;
⇒ y = - 2x - 1
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
The point on the line are (-4, 7).
And, The slope of the line is,
⇒ m = - 2
Now,
Since, The equation of line passes through the point (- 4, 7).
And, Slope of the line is,
m = - 2
Thus, The equation of line with slope - 2 is,
⇒ y - 7 = - 2 (x - (-4))
⇒ y - 7 = - 2 (x + 4)
⇒ y - 7 = - 2x - 8
⇒ y = - 2x - 8 + 7
⇒ y = - 2x - 1
Therefore, The equation of line passes through the point (-4, 7) will be;
⇒ y = - 2x - 1
Learn more about the equation of line visit:
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Evaluate $$ 7 5×10.
Answer:
I think it is $750
Step-by-step explanation:
Simply multiply $75 ×10
а+ За – 4(9 — а)
Simplify..
Answer:
8a-36 is the answer.
Step-by-step explanation:
=a+3a-4(9-a)
=a+3a-36+4a
=4a+4a-36
=8a-36
Hope it will help ^_^
Answer:
8a - 36
Step-by-step explanation:
a + 3a - 4(9-a)
4a - 4(9-a)
4a- 36 - 4a
8a - 36
3.Which linear equations also represents a direct variation? (select all that apply)
y = 2/3x
y = -2x – 4
y = 5x
y = 3x + 2
Question 6 (9 points)
Which of the following is the simplified expression of -6y² + 4 + 4x – y + 2x – 2 – 3 ?
Answer:
-6y² -1 + 6x - y
Step-by-step explanation:
-6y² + 4 + 4x – y + 2x – 2 – 3 ?
-6y²- 1 + 4x - y + 2x
-6y² -1 + 6x - y
I need help with my homework
Answer:
the length is 6cm and the height is 9cm
Step-by-step explanation:
because 9x6=54
If f(x) = 2x – 1and g(x) = x², Find fºg
Answer: the answer is
Step-by-step explanation:
put g of x in f of x
(2x)^2 - 1
=4x^2 - 1
There are 3 different cheeses at the deli. Yasuko buys Three-fourths of a pound of each. There are also 4 different meats. She buys One-half of a pound of each. How much total meat and cheese did Yasuko buy at the deli? One-fourth pounds 2 and one-fourth pounds 4 and one-fourth pounds 4 and one-half pounds
Question :
There are 3 different cheeses at the deli. Yasuko buys Three-fourths of a pound of each. There are also 4 different meats. She buys One-half of a pound of each. How much total meat and cheese did Yasuko buy at the deli? a) One-fourth pounds
b) 2 and one-fourth pounds
c) 4 and one-fourth pounds
d) 4 and one-half pounds
Answer:
c) 4 and one-fourth pounds
Step-by-step explanation:
From the question:
There are 3 different cheeses at the deli. Yasuko buys Three-fourths of a pound of each.
Total pounds of cheese = 3 × (3/4)
= 9/4 pounds of cheese
There are also 4 different meats. She buys One-half of a pound of each.
Total pounds of meats she bought = 4 × (1/2)
= 4/2 pounds of meat
The total pounds of total meat and cheese did Yasuko bought at the deli =
= 9/4 pounds of cheese + 4/2 pounds of meat
L.C.M = 4
= 9 × 1 + 4 × 2/4
= 9 + 8/4
= 17/4
= 4 1/4 pounds
In words is 4 and one-fourth pounds
Answer:
C
Step-by-step explanation:
Took the test
The closest perfect square less than 2592
how do i get points?
Answer:
answer questions :)
Step-by-step explanation:
Answer:
sorry i just need points
Step-by-step explanation:
What is the answer to this
-5 + 7
Changes to the cities and the environment:
1) List some ways in which the Tokugawa Shogunate strengthened Japan's economy.
2) How did rice production change?
3) Why were more roads required around Edo as the city grew?
4) Why was timber such an important resource in medieval Japan?
5) Describe the environmental policies introduced to protect forests and change the way timber was harvested.
6) Write a paragraph to explain, in broad terms, the impact that the Tokugawa shogunate had on Japan.
Answer:
Sorry i don't really know all of the question but I hope the ones I know help.
Step-by-step explanation:
The second questions answers is:
The most significant change in rice production technologies started from 2000 to 2013 and it was the introduction and adoption of new rice seed varieties. Southern rice producers increased it by planting Hybrid and non-genetically modified herbicide.
The third questions answer;
more roads were required cause Edo grew into a huge city with a lot of buildings and they needed road.
The fourth question answer; timber was important cause it was used to supply construction needed for the growing of population in the peaceful time. some places like the Shogun Leyasu and many of the Daimyo started building huge castles and templates to show their power to each other.
Is 4:18 and 2:12 equivalent
solve a/3 + 4 = 6
a=
Answer:
a = 6
Step-by-step explanation:
Given
[tex]\frac{a}{3}[/tex] + 4 = 6 ( subtract 4 from both sides )
[tex]\frac{a}{3}[/tex] = 2 ( multiply both sides by 3 to clear the fraction )
a = 6
Answer:
a=6
Step-by-step explanation:
a/3=6-4
a/3=2
a=6
Your school's drama club charges $10 per person for admission to a play. The club borrowed $400 to pay for costumes and props. After paying back the loan, the club has a profit of $100. Write an equation. Let x represent the number of people who attended the play.
Answer:
10x + 400 - y = 100
Step-by-step explanation:
Answer:
50 people came to the play
Step-by-step explanation:
Let x be the amount of people that attended the play
10x=400+100
10x=500
divide by 10 on both sides
50 people came to the play
400+100=500
40 people is $400 for the props
10 people makes $100
Hope this helps :-)
Which expressions are equivalent to 4(4a + 5) ? 3 answers
Answer:
16a+20
Step-by-step explanation:
4(4a+5) -----Distributive property
16a+20
Hope this helps ;) ❤❤❤
Simplify the expression: y9 * y-2
Answer:
[tex]y^7[/tex]
Step-by-step explanation:
If we want to simplify the expression [tex]y^9 \cdot y^{-2}[/tex], we have to note that exponent rules state that [tex]x^a \cdot x^b = x^{a+b}[/tex].
This means that if we add the exponents, that will be what we raise y to the power of.
[tex]9 + -2 = 9-2 = 7[/tex]
So [tex]y^7[/tex].
Hope this helped!
hi I need help with this packet because my teacher explains it very hardly for me
Answer:
(-1,4) (-8,2) (-6,10)
Step-by-step explanation:
All you had to do is reflect it and figure out the new coordinates. There is you answer.... you welcome
Heather is putting together a square bulletin board for her new room, and the area of the bulletin board is 196 cm2. What is the total distance around the bulletin board?
Answer:
the total distance is 56 cm
Step-by-step explanation:
Given that the area of the bulletin board is 196 cm^2
Based on this, the total distance around the bulletin board is
But before that we need to find out the side
As the area of square is
= side^2
196 = side^2
So side = 14
Now there are four sides, so the total distance is
= 4 × 14
= 56 cm
Hence, the total distance is 56 cm
Answer:
56 cm
Step-by-step explanation:
Which of the following is a whole number?
9
JT
5.111...
2
8
Submit
Answer:
9,2,8
Step-by-step explanation:
A whole number is a number with no fractions or Integers.
A bus travels the 100 miles between A and B at 50 mi/h and then another 100 miles between B and C at 70 mi/h. The average speed of the bus for the entire 200-mile trip is:
Answer:
Average speed= 58.3 mi/hourStep-by-step explanation:
The average speed is defined as the total distance traveled divided by the total time taken.
from A to B
distance= 100 miles
speed= 50 mi/h
speed= distance/time
time= distance/speed
time= 100/50
time= 2 hours
from B to C
distance= 100 miles
speed= 70 mi/h
speed= distance/time
time= distance/speed
time= 100/70
time= 10/7 hours
Average speed= total distance/total time
total distance= 200 mile
total time= 2+10/7= (14+10)/7= 24/7
Average speed= 200/24/7
Average speed= 200*7/24
Average speed= 1400/24
Average speed= 58.3 mi/hour
Find the measures of the angles of a triangle if the measure of one angle is three times the measure of a second angle and the third angle measures 3 times the second angle decreased by 30.
Answer:
90°,30°,60°
Step-by-step explanation:
hope it helps
What is the length of NO?
N= (7,-4)
O=(-7,-4)
Answer:
I believe it would be 14.
Step-by-step explanation:
The distance between 7 and -7 should be 14.
The length of NO is 14 units
What is the length of NO?Distance between two points is the length of the line segment that connects the two points in a plane.
The formula to find the length is given by:
d =√((x2 – x1)² + (y2 – y1)²)
We:
N= (7,-4) : x1 = 7 , y1 = -4
O = (-7,-4): x2 = -7 , y2 = -4
Using the formula with the given values:
d=√((-7 – 7)² + (-4 – (-4))²)
d=√((-14 )² + (0)²)
d=√196
d= 14
Therefore, the length of NO is 14 units
Learn more about the distance between two points on:
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what number set does 24 belong to?
Answer:
even numbers
Step-by-step explanation:
its latter digit is divisible by 2
Find the area 10yd, 4yd, 10yd, 13yd and 8yd
Answer:
41,600yd's is the area....
Determine the measure of the angle labeled (4x+7)°.
Answer:
39°
Step-by-step explanation:
It is the same measure as the one labeled 6x-9, since these are vertical angles.
4x +7 = 6x -9
16 = 2x . . . . . . . . add 9-4x
8 = x
4x+7 = 4(8) +7 = 39
The angle is 39°.