Answer:
4−2x<−3
Step-by-step explanation:
check:
now --- 4°
after 1 hr --- 2°
after 2 hrs--- 0°
after 3 hrs--- -2°
after 4 hrs--- -4°
so between 3 and 4 hrs it will reach -3°
4-2x < -3
-2x < -7
x > 3 1/2
Find the length of AB
Answer:
17 units
Step-by-step explanation:
You can find the lenght of drawing a triangle and counting the x units and y units, thereby the AB would be the hypotenuse.
X units ( base ) = 15 units
Y units ( height ) = 8 units
AB = root of 8^2 + 15^2
AB = root of 289
AB = 17 units
Hope it helps :)
Mark it as brainliest answer pls :)
2x - 1y = -9
y = - 5 - 5x
Answer:
x = - 7 and y = 30
Step-by-step explanation:
2x - y = -9
subtract 2x from either side
-y = -9 - 2x
divide either side by -1
y = 9 + 2x
Plug in 9 + 2x for y
9 + 2x = -5 - 5x
Add 5 to either side and subtract 2x from either side
14 = -2x
divide either side by -2
-7 = x
plug in -7 for x in one of the equations
y = -5 - ( 5 x -7 )
y = -5 - ( - 35)
y = -5 + 35
y = 30
plug in x and y
30 = -5 - ( 5 x -7)
30 = -5 - (-35)
30 = -5 + 35
30 = 30
Answer:
B. −19
Step-by-step explanation:
Multiply both sides of the equation by y , and then isolate the variable.
y−1y
=
10
y−1
=
10y
−1
=
9y
−19
=
y
Divide both sides by 9
Can someone help me with this? I can't figure it out. The second screenshot is the answers.
Answer:
its y = mx + b
Step-by-step explanation:
because the b bracket is above 0 its positive. IM no pro so I don't have a long essay like explanation but its b
Answer:
C
Step-by-step explanation:
I'm pretty sure its y=mx+b
pic below........................................
Answer:
The answer is -10
Step-by-step explanation:
PEMDAS
6-2^3+(-9+5)x2
6-2^3+(-4)x2
6-8+(-4)x2
6-8+(-8)
6-16
-10
Please help! 30 points awarded :))
Answer:
the file I attached should be the answer. Im pretty sure all they are asking for is that you just flip the shape horizontally and then just add the angles and numbers to the shape.
Step-by-step explanation:
just flip the first shape over.
Camryn enlarged the size of a photo to a height of 18 inches, what is the
new width if it was originally 2 inches tall and 1 inch wide?
Answer:
I'm think is 17
Step-by-step explanation:the Height of it was 18 and the original height was 2 so subtract 2 from 18 you get 16.So thy are adding 16.So 16+1=17.
Can someone figure this out??
Answer:
x = 6 2/3
Step-by-step explanation:
We can use ratios to solve
x/4 = 15/9
Using cross products
9x = 4*15
9x = 60
Divide each side by 9
x = 60/9
x = 20/3
x = 6 2/3
How much interest would you have to pay for a 30-month loan of
$1,735.53 if the simple interest rate were 7.11%?
Answer:
$308.49
Step-by-step explanation:
2 Tables. A 2-column table with 4 rows is titled Table 1. Column 1 has entries 2, 4, 6, 8. Column 2 has entries 3, 6, 9, 12. A 2-column table with 4 rows is titled Table 2. Column 1 has entries 5, 10, 15, 20. Column 2 has entries 6, 12, 18, 24.
Compare the ratios from the tables.
2:3 is 5:6
10:12 is 6:9
The ratios in Table 1 are the ratios in Table 2.
Answer:
Compare the ratios from the tables.
2:3 is less than 5:6
10:12 is greater than 6:9
The ratios in Table 1 are less than the ratios in Table 2.
Step-by-step explanation:
its correct in edg2020
Answer:
less than
greater than
less than
Step-by-step explanation:
Help i'm not very good at math...
Answer:
[tex]m=-7[/tex]
What is 16x4 - 100y4 factored completely?
(4x2 + 10y2)(2x - 5y)(2x + 5y)
(2x - 5y)2 (2x + 5y)
16(x2 - 5y2)(x2 + 5y2)
4(2x2 - 5y2)(2x2 + 5y2)
Answer:
4(2x2-5y2)(2x2+5y2)
Step-by-step explanation:
Analyze the following equation.
43 = k/99
Which math step will most efficiently solve the equation?
Add 99 to both sides of the equation.
Subtract 99 from both sides of the equation,
Multiply both sides of the equation by 99.
Divide both sides of the equation by 99.
Answer:
Multiply both sides by 99
Step-by-step explanation:
k = 4257
mrs. Johnson informed her students that their exam will have at most 25 questions.
x>25
x>=25
x<25
x<=25
Answer:
it would be x>25 because it would either be up to 25 questions or less
plzzzzzzzzzzzzzzz help me!!!!!!!
look at the screenshot
Answer:
Step-by-step explanation:
GH bisects ∠FGI.
So, ∠HGI =∠FGH
6x - 17 = 5x - 8 {Add 17 to both sides}
6x = 5x - 8 + 17
6x = 5x + 9 {Subtract 5x form both sides}
6x - 5x = 9
a) x = 9
b) ∠FGH = 5* 9 - 8
= 45 - 8
∠FGH = 37
c) ∠HGI = 6*9 - 17
= 54 - 17
∠HGI = 37
d) ∠FGI = ∠FGH + ∠HGI
= 37 + 37
∠FGI = 74
You spend $4.50 on 5 pounds of apples. What is the unit rate in dollars per pound?
Answer:
$0.90 per pound. Hope this helped :)
Step-by-step explanation:
I had this question trust me. Good luck!
Answer:
$0.90/pound (1st answer choice)
Step-by-step explanation:
Find the unit rate as follows:
$4.50
----------------- = $0.90/pound (1st answer choice)
5 pounds
Last week John’s hamster drank 45 mL of water. This week he drank 25 mL of water. By what percent did the hamster’s intake of water decreased?
Answer:
Percentage decrease is 55%.
Step-by-step explanation:
Given the following data;
Original (old) number = 45mL
New number = 20mL
[tex] Percentage \; decrease = \frac{change\; in \;amount}{original\;number} * 100[/tex]
Change in amount = 45 - 20 = 25
Substituting into the equation, we have;
[tex] Percentage \; decrease = \frac{25}{45} * 100[/tex]
[tex] Percentage \; decrease = 0.55 * 100[/tex]
[tex] Percentage \; decrease = 55%[/tex]
Therefore, the hamster’s intake of water decreased by 55%.
-6(x+2)=5(3x+6)
i wasn’t here when we did this
Answer:
x=-2
Step-by-step explanation:
-6(x+2)=5(3x+6)
-6x-12=15x+30 distribute the outside numbers
-6x=15x+42 add 12 on both sides
-21x = 42 subtract 15x on both sides
x=-2 divide by -21 on both sides.
In a group of 28 students, 12 study both Art and Biology.
12 study Biology but not Art.
4 study neither subject.
Given that a randomly selected student studies Art, what is the probability the student studies Art and Biology?
Answer:
100%
Step-by-step explanation:
Use conditional probability:
P(B | A) = P(B and A) / P(A)
P(B | A) = (12/28) / P(A)
We need to find the probability that a student studies art.
P(A or B) = P(A) + P(B) − P(A and B)
24/28 = P(A) + (12+12)/28 − 12/28
P(A) = 12/28
P(B | A) = (12/28) / (12/28)
P(B | A) = 1
What this means is that all of the students who study art also study biology.
John was 40" tall in 2008 and 46" tall in 2010. Dave was 53" tall in 2003 and 70" tall in 2007. Who is growing at
a faster rate? If each person keeps growing at the same rate, how tall can we expect each to be in 2011? Is this
a reasonable expectation?
Answer:
John is growing at a faster rate.
Step-by-step explanation:
John grew 6 inches in 2 years, while Dave grew 7 inches in 4 years. We can expect John to grow another 3 inches by 2011, making John 49 inches tall in 2011. We can expect Dave to grow about another 7 inches by 2011, since another 4 years has passed. This seems reasonable enough...
-2+9=-2(x+3)+8
Is this Infinitely Many Solutions
No solutions
Or One solutions
Answer:
i think it is many but i am not sure
Step-by-step explanation:
2. A group of four people ate dinner at a restaurant. They divided the bill equally and
each person left a $2 tip. They each paid $14. Write and solve an equation to determine the
amount of the total bill.
How do you write it as an equation?
Answer:
14 times 2 = t = 28 dollars
Step-by-step explanation:
A museum requires a minimum number of chaperones proportional to the number of students on a field trip.
The museum requires a minimum of 3 chaperones for a field trip with 24 students.
Which of the following could be combinations of values for the students and the minimum number of
chaperones the museum requires?
Choose 2:
A: 72s 9c
B: 16s 2c
C: 60s 6c
D: 45s 5c
E: 40s 8c
S= Students
C= Chaperones
Answer:
A, and B
Step-by-step explanation:
Answer: A: 72s 9c and C: 60s 6c
Step-by-step explanation: we have so much in common, we argue all the time, you always say im wrong, IM PRETTY SURE IM RIGHT.
(56 - 4) 3
Need help plz
Answer:
55.........................
Step-by-step explanation:
56-4=52+3= 55
very simple
-3x +10 = 5x -8
Write an absolute value inequality for the recommended air pressure range for each type of ball. Use the variable x for the ball's actual air pressure. Soccerball 12.05 recommended psi tolerance+3.55 Basketball 8.00 average recommended psi tolerance +0.5 volleyball 4.44 average recommended psi tolerance +0.18
Answer:
For Soccer ball:
x = | 12. 05 + 3.55 |
For basketball:
x = | 8.00 + 0.5 |
For volleyball:
x = | 4.44 + 0.18 |
Step-by-step explanation:
Given the following :
Let x = ball's actual air pressure
_________avg Recommended psi ___tolerance
Soccer ball____ 12. 05 ____________+3.55
Basketball _____8. 00_____________+0.5
Volleyball _____ 4.44 _____________ + 0.18
Actual air pressure = | average recommended psi + tolerance |
Hence ;
For Soccer ball:
x = | 12. 05 + 3.55 |
For basketball:
x = | 8.00 + 0.5 |
For volleyball:
x = | 4.44 + 0.18 |
Jon and Lexi are playing a marble game. According to their rules, 4 points are awarded for each red marble collected and 3 points are awarded for each blue marble collected. Which expression represents Jon's total score if he has r red marbles and b blue marbles?
4r − 3b
2r − 3b
4r + 3b
7rb
Answer:
i believe the answer is 4r - 3b
Answer:
4r+3b
Step-by-step explanation:
4 red awarded = 4r
3 blue awarded = 3b
Score = 4r + 3b
HELP ME PLEASE TYSM
Answer:
it could be X in this type of case
Tickets for a high school football game cost $2.50 each if purchased in advance. They cost $3.75 each if bought at the gate on the day of the game. For a particular game , 250 tickets were sold at the gate. If the sales totaled $1750, how many tickets were sold in advance?
250*3.75=937.5
1750-937.5=812.5
812.5/2.5=325
325 tickets were sold in advance :)
Answer:
1,500 tickets were sold in advance.
Step-by-step explanation:
$ 1,750 - 250 tickets = 1,500 tickets
how do i transform 5/8 in porcent
Answer:
62.5%
Step-by-step explanation:
that's the awnser 62.5% your welcome
what are the zeros of the function?
Answer:
-3,-1,2
Step-by-step explanation:
Look where f(x) hits the x-axis