Answer:
A.(1,2)
Step-by-step explanation:
Step: Substitute
−2 /3 y + 7 /3
4x−12y=−20:
4x−12y=−20
4( −2 /3 y + 7 /3 )−12y=−20
-44/3y + 28 /3 =−20(Simplify both sides of the equation)
−44 /3 y + 28 /3 + −28 /3 =−20+ −28 /3
(Add (-28)/3 to both sides)
−44 /3 y= −88 /3
−44 /3 y
−44 /3 = −88 /3 −44 /3
(Divide both sides by (-44)/3)
y=2
Step: Substitute2foryinx=
−2 /3 y+ 7 /3 :
x= −2 /3 y+ 7 /3
x= −2 /3 (2)+ 7 /3
x=1(Simplify both sides of the equation)
Answer:
x=1 and y=2
Jocelyn goes to two different stores to buy jeans. Both stores are having a sale. At Store A, jeans are regularly priced at $42 but are on sale for 30% off. At Store B, jeans are regularly priced at $40 but are on sale for 25% off. Which of the following is true about the situation?
A.Store A has the better price because the 30% is greater than 25%.
B.Store A has the better price because the sale price is $0.60 less than the sale price at Store B.
C.Store B has the better price because $40 is less than $42.
D.The sale price is the same for both stores.
Answer:
The answer is C
Step-by-step explanation:
I took the quiz
Moneysaver's Hank offers savings account that eams 3% interest compounded continuously. If Lucy deposits $1200, how much will have in the account after six years, assuming she makes no withdrawals?
Answer:1442.41086
Step-by-step explanation:
So first it would continue 3% higher so not 18% higher
first 3% higher 1200
So 1236
Then 3% of 1236
so 1273.08
The 3% of that to 1311.2724
The 3% of that to 1350.61057
The 3% of that to 1400.39889
The 3% of that to 1442.41086
Answer:
1251
Step-by-step explanation:
Use the formula for calculating compound interest A=P0ert where A is the unknown, P0=1200, r=0.014, and t=3. Substitute the values into the formula and simplify.
A=1200e0.014⋅3
A=1200e0.042
A=1200(1.0428...)
A=1251.47
Therefore, after three years, the balance in the account is A≈1251.
Find the equation of the line that is perpendicular to the given line and passes through the given point. Enter your answer in slope-intercept form (y = mx + b) with the values of m and b given as decimals, rounded to the nearest hundredth if necessary.
y = 4x ; (2, −4)
The equation is y = .
Helppppppp I am so dumb sorry
Answer: I think the asnwer is c
Step-by-step explanation:
I suggest this because when your looking at the two different triangles your looking at the sides and the whole shape
C provides the similarly
Solve the equation -16(d+1) = -20.
Answer:
[tex]d=\frac{1}{4}[/tex]
Step-by-step explanation:
[tex]-16(d+1)=-20[/tex] (given)
[tex]-16d-16=-20[/tex] (expand the brackets)
[tex]-16d=-4[/tex]
[tex]d=\frac{1}{4}[/tex]
Hope this helps :)
Answer:
d = 1/4
Step-by-step explanation:
- 16 (d + 1) = - 20
- 16d - 16 = - 20
- 16d = -20 + 16
- 16d = - 4
d = [tex]\frac{-4}{-16}[/tex]
d = [tex]\frac{1}{4}[/tex]
what is the opsilute value for 27/90 and 100/99
Answer:
3 /10
Decimal Form:
0.3
Step-by-step explanation:
Elght times a number increased by 9 Is the same as 15 more than 7 times the number ?
Answer:
:let x = the number
then 8x + 9 = 9x
solving, x = 9
Proof: (8 x 9) + 9 = 9 x 9; 72 + 9 = 81, and 81 = 81
Celine works twice as many hours as she spends in class she studies 4 hours for every hour in class to maintain her health and sanity she limits her total time commitment to work and school to 70 hours per week how many hours does she plan to spend on each activity
Answer:
she will spend 10 hours in class 40 hours studying and 20 hours working
Step-by-step explanation:
if u simply start at 1 hour of class u get to see the pattern example:
class. study. work
1 4. 2
she works twice as long as she is in class and studies 4 times longer than in class so for every hour she is in class do the math for this condition. for every class hour multiply by 4 to get her study time and then multiply her class hour by 2 to get her work hours. keep going until the total time of all activities adds to 70
On Tuesday, Mr. Miles walked 2/9 of the trail to warm up and then he ran 4/6 of
the trail. What fraction of the trail did Mr. Miles cover on Tuesday?
Answer: 8/9
Step-by-step explanation:
From the question, we are informed that On Tuesday, Mr. Miles walked 2/9 of the trail to warm up and then he ran 4/6 of the trail.
The fraction of the trail that Mr. Miles covered on Tuesday would be the addition of both fractions. This would be:
= 2/9 + 4/6
Note that the lowest common multiple of 9 and 6 is 8. Therefore,
= 2/9 + 4/6
= 4/18 + 12/18
= 16/18
= 8/9
He covered 8/9 of the trail
x+4/-2=-1
how to solve this problem
Answer: = 1
Step-by-step explanation:
Answer:
x = 1
Step-by-step explanation:
x + 4 ÷ -2 = -1
x + -2 = -1
x = 1
NEED HELP! ITS DUE NOW!
Triangle PQR is transformed to similar triangle P’Q’R’:
What is the scale factor of dilation?
1 over 2
1 over 3
1 over 4
1 over 5
Answer:
oi bruv
Step-by-step explanation:
Factor out completely 12b + 20bc
Answer:
4b( 3+5c)
Step-by-step explanation:
12b + 20bc
We can factor out what is common to both terms
4b*3 + 4b*5c
4b( 3+5c)
Plz help me Find the Slope to (1,-2),(6,2)
Also (2,5),(6,2)
And (4,9),(1,6)
Please help, if you don’t know, don’t answer.
Answer: 1
Step-by-step explanation:
Sandy has 15 roses, 5 daisies, and 10 tulips. She wants to arrange all the flowers in bouquets. Each bouquet has the same number of flowers and the same type of flower. What is the greatest number of flowers that could be in a bouquet?
Answer:
5
Step-by-step explanation:
Sandy has 15 roses, 5 daises and 10 tulips
She wants to arrange the flower in such a way that each bouquet will have the same flower in it
Therefore the greatest number of flowers that will be in each bouquet is 5 flowers this is so inorder to make each bouquet contain equal number of flowers, this means that one bouquet must not be greater than the other.
What is the pay rate for someone who works 3 hours and earns $21?
Answer:
$7
Step-by-step explanation:
Mr. Munch drove 169 miles in 1 hour and 30 minites how many miles was he going
Answer:
112.67 mph
Step-by-step explanation:
Given that:
Miles driven = 169 miles
Time taken = 1 hour 30 minutes = 1.5 hours
Speed or rate = distance traveled / time taken
Speed = 169 miles / 1.5 hours
Speed = 112.6667
Hence, Mr. Munich was going with a speed of 112.67 miles per hour.
A zebra can run at a constant speed of 0.6 miles per minute. How far can a Zebra run in 30 minutes.
Answer:
18 miles
Step-by-step explanation:
0.6 *30 = 18
Which is the inverse of the function a(d)=5d-3? And use the definition of inverse functions to prove a(d) and a-1(d) are inverse functions
Answer:
[tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex]
[tex]a(a'(d)) = a'(a(d)) = d[/tex]
Step-by-step explanation:
Given
[tex]a(d) = 5d - 3[/tex]
Solving (a): Write as inverse function
[tex]a(d) = 5d - 3[/tex]
Represent a(d) as y
[tex]y = 5d - 3[/tex]
Swap positions of d and y
[tex]d = 5y - 3[/tex]
Make y the subject
[tex]5y = d + 3[/tex]
[tex]y = \frac{d}{5} + \frac{3}{5}[/tex]
Replace y with a'(d)
[tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex]
Prove that a(d) and a'(d) are inverse functions
[tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex] and [tex]a(d) = 5d - 3[/tex]
To do this, we prove that:
[tex]a(a'(d)) = a'(a(d)) = d[/tex]
Solving for [tex]a(a'(d))[/tex]
[tex]a(a'(d)) = a(\frac{d}{5} + \frac{3}{5})[/tex]
Substitute [tex]\frac{d}{5} + \frac{3}{5}[/tex] for d in [tex]a(d) = 5d - 3[/tex]
[tex]a(a'(d)) = 5(\frac{d}{5} + \frac{3}{5}) - 3[/tex]
[tex]a(a'(d)) = \frac{5d}{5} + \frac{15}{5} - 3[/tex]
[tex]a(a'(d)) = d + 3 - 3[/tex]
[tex]a(a'(d)) = d[/tex]
Solving for: [tex]a'(a(d))[/tex]
[tex]a'(a(d)) = a'(5d - 3)[/tex]
Substitute 5d - 3 for d in [tex]a'(d) = \frac{d}{5} + \frac{3}{5}[/tex]
[tex]a'(a(d)) = \frac{5d - 3}{5} + \frac{3}{5}[/tex]
Add fractions
[tex]a'(a(d)) = \frac{5d - 3+3}{5}[/tex]
[tex]a'(a(d)) = \frac{5d}{5}[/tex]
[tex]a'(a(d)) = d[/tex]
Hence:
[tex]a(a'(d)) = a'(a(d)) = d[/tex]
Pleeeeeeaaaaasssseeee! Will give brainliesttttttt! Can you map shape I onto shape II by a sequence of rotations, translations, reflections, or dilations? If so, give a sequence that maps shape I onto shape II.
Answer:
rotate 90° counter clockwise
left 2
up 2
Answer: Rotating shape I 90° counterclockwise about the origin, and then translating it 2 units up and 2 units left will map shape I onto shape II.
Step-by-step explanation:
1. Rotate shape I 90° counterclockwise about the origin.
2. Translate the rotated shape 2 units up and 2 units left.
it costs $19.20 for a pack of 8 padlocks
find the unit price in dollars per padlock.
if necessary, round your answer to the nearest cent.
Answer: $2.40
Step-by-step explanation: 19.20/8
The answer you get is going to be the price per padlock.
The exchange rate in London is £1 = €1.14
The exchange rate in Paris is €1 = £0.86
Tony wants to change some pounds into euros.
In which of these cities would Tony get the most euros?
All working must be shown.
Answer:
Paris
Step-by-step explanation:
In London we get
£1 = €1.14
In Paris we get
£0.86=€1
dividing both sides by 0.86 gives:
£1 = €1/0.86=€1.16 in Paris
so in Paris you get more € for the same £1
Hep help please please
Answer:
The answer is 0, 5.25
Step-by-step explanation:
A man bought 4 cups of coffee and left a $7 tip. A woman bought 8 cups of coffee and only left a $2 tip. If they paid the same amount, how much was each cup of coffee? Write and solve an equation for the situation.
9x + 16 = 4x − 19
what is x?
Answer:
x = -5/3
Step-by-step explanation:
Answer:
x=-5
Step-by-step explanation:
9x+16=4x-19
5x=-25
x=-5
Nate paid $16.20 for a shirt, including tax. The sales tax was
8%. What was the original cost?
Answer:
9.30
Step-by-step explanation:
Bob rides his bike from his house to a friend's house. After riding 9 miles, he realizes he has traveled 3/4 of the way. How far is Bob's house from his friend's house?
A. 9 3/4 miles
B. 36 miles
C. 6 3/4 miles
D. 12 miles
Answer:
12 miles
Step-by-step explanation:
sorry if im wrong
Which graph shows a dilation? On a coordinate plane, 2 rectangles are shown. The larger rectangle is 8 units wide and 4 units high. The smaller rectangle is 4 units wide and 2 units high. On a coordinate plane, a square and a rectangle are shown. The square is 2 units wide and 2 units high. The rectangle is 8 units wide and 4 units high. On a coordinate plane, 2 rectangles are shown. The larger rectangle is 7 units wide and 4 units high. The smaller rectangle is 3 units wide and 2 units high. On a coordinate plane, 2 rectangles are shown. The larger rectangle is 7 units wide and 4 units high. The smaller rectangle is 3 units wide and 1 unit high.
Answer:
A
Step-by-step explanation:
took test on edge2020
The graph among the given options that shows a dilation is; Graph A
When we are talking about dilation of objects, it just means shrinking or enlarging an object by a scale factor. This means ratio of corresponding sides of both objects must be equal.
A) Ratio of corresponding longer side = 4/8 = ½
Ratio of corresponding shorter side = 2/4 = ½
Thus, this shows a dilation.
B) This involves a square and a rectangle. They are not the same because all sides of the square are equal but not all sides of the rectangle are equal. Thus, a dilation is not possible.
C) the ratio of the corresponding sides are not equal and as such it is not dilated.
D) The ratio of the corresponding sides are not equal and as such it is not dilated.
Read more about dilation of objects at; https://brainly.com/question/9791066
SOMEONE HELP ME IS THIS DUE AT 8 pm
Answer:
he has 2 points after the third round
Step-by-step explanation:
5-5=0
0+2=2
And a survey 1500 people who owned certain type of car 600 said they would buy that car again what percent of the people surveyed were satisfied with the car
Answer:
6%
Step-by-step explanation:
