Answer:
x=1 y=-9
Step-by-step explanation:
plug the given x and y values into the equation
y=-2(4)-1
y=-8-1
y=-9
1=-2x-1
+1 +1
2=-2x
/2 /2
1=x
PLS HELP ASAP!!! I’ll give brainliest
Here are 4 equations defining 4 different functions, a, b,c, and d. List them in order of
increasing rate of change. That is, start with the one that grows the slowest and end
with the one that grows the quickest.
a. (x) = 5x + 3
b. (x) = 3x + 5
c. (x) = x +4
d. (x) = 1 + 4x
Step-by-step explanation:
In order to test the rate of growth of the functions, we use a single value of x to monitor the results of all the equation.
Let's use a random value of 3;
The equation with the highest result is the one that grows the quickest
a. (x) = 5x + 3
a. (x) = 5(3) + 3 = 18
b. (x) = 3x + 5
b. (x) = 3(3) + 5 = 14
c. (x) = x +4
c. (x) = (3) +4 = 7
d. (x) = 1 + 4x
d. (x) = 1 + 4(3) = 1 + 12 = 13
Upon going through the results and arranging in increasing order;
c. (x) = x +4
d. (x) = 1 + 4x
b. (x) = 3x + 5
a. (x) = 5x + 3
Moly runs 2/3 of a mile in 8 minutes. Lin runs 2 3/4 miles in 2/5 of and hour
How far can Moly run in one hour?
Answer:
5 miles
Step-by-step explanation:
distance / time = distance / time
2/3 ÷ 8/1 = d / 60
[tex]\frac{2}{3}[/tex] · [tex]\frac{1}{8}[/tex] = [tex]\frac{d}{60}[/tex]
[tex]\frac{1}{12}[/tex] = [tex]\frac{d}{60}[/tex]
12d = 60
d = 60/12
d = 5
Solve this equation: 3b+3t=11.25
2b+4t=10.00
Answer:
b = 2.5, t = 1.25
Step-by-step explanation:
please help i need help
Answer:
all i think
Step-by-step explanation:
because you just do the math 3 times 3 five times and do the same with the next
f(x) = 12x+5 find f(11)
Answer:
f(11)= 12x+5=137
Step-by-step explanation:
Multiply 12 times 11 to get 132 then add 5 and you get 137 :)
wayra and lily are both hiking along the same trail. wayra is walking at rate of 3.1 kilometers per hour and lily is walking at a rate of 3.6 kilometers per hour . they start their hikes at different time, but at 1:00pm , wayra passes the 3.0 kilometer marker and lily passes the 2.0 kilometer marker a. write a system of equations and solve by using substitutions . round the nearest tenth
Answer:
Step-by-step explanation:
The distance covered by Lily is; 9.2 Km around the nearest tenth.
What is the relation between speed and distance?Speed describes how accelerated something or somebody is moving. If you know the distance traveled and the time it took, you can calculate the average speed of an object.
The speed formula is speed = distance/time.
To Find the units for speed, we must first determine the units for time and distance.
Given that Wayra is walking at the rate of 3.1 kilometers per hour,
and Lily is walking at a rate of 3.6 kilometers per hour.
The starting time is 1:00 PM
Wayra passes the 3.0-kilometer marker and Lily passes the 2.0-kilometer marker.
The system of equations;
Let 't' represent the time taken by both to cover their respective distance 'd'.
Thus,
Equation ;
Wayra; d = 3.1t + 2
Lily; d = 3.6t + 2.
Now Time for which Lily will catch up.
t = 2 hours
Starting time: 1:OO PM
Add 2 hours = 3:OO PM
Distance covered by Lily plug t = 2 in Lily's equation.
d = 3.6t + 2.
d = 3.6×2 + 2.
d = 9.2 Km.
Thus, the distance covered by Lily is; 9.2 Km around the nearest tenth.
To know more about the distance, here;
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Solve 0.4(y+3)-0.8y.
Answer:
The answer is: 1.2 + -0.4y
Answer: -0.4y + 1.2
Step-by-step explanation:
0.4(y) = 0.4y
0.4(3) = 1.2
0.4y + 1.2 - 0.8y
0.4y - 0.8y = -0.4y
-0.4y + 1.2
x - y = 1
Зx = Зу + 3
what method should I use and why
Answer:
substitution it would make the most sense in this case and be the fastest way . by fastest i mean the least amount of steps
Step-by-step explanation:
A line has a slope of 2 and a y-intercept of 0 what is its equation in slope intercept form
Answer:
y = 2x
Step-by-step explanation:
Explanation:
Slope-intercept form is given by
y
=
m
x
+
b
, where
m
is the slope of the line and
b
is the
y
-intercept of the line, or the value of
y
where the line crosses the
y
-axis.
Given that the slope of the line is
2
, we have
m
=
2
, and because the line crosses the
y
-axis at the point
(
0
,
0
)
, where
y
=
0
and
x
−
0
, we have:
y
=
2
x
+
0
Or, equivalently,
y
=
2
x
If the point given were not the origin, you could use
y
=
m
x
+
b
to find
b
by plugging the
x
and
y
value of the point in for
x
and
y
in the equation along with the given slope
m
and solving for
b
.
Given
m
=
2
and
(
x
,
y
)
=
(
0
,
0
)
:
0
=
2
(
0
)
+
b
⇒
0
=
b
We would then put this value back into
y
=
m
x
+
b
for
b
, along with the slope
m
, yielding the same answer as above:
y
=
2
x
.
The Roosevelt high school environment club is cleaning up trails. They start at ponderosa flats, which is 63 feet below sea level. They climb to point Serrano which is 1,287 feet above sea level. How many feet did it climb
I will give brainlest and extra points for this please complete less in 5 minutes it is due
Simplify step by step 1/2 (8x -4)
Answer:
4x-2
Step-by-step explanation:
Lucy ran 4/5 of a mile on Saturday. She ran 4/5 of a mile on Sunday. How much did she run in
both days? Write your answer in a mixed number
Answer:
1 3/5
Step-by-step explanation:
Write a function to represent the set of ordered pairs.
112,2), (3, 8), (4, 22), 15.40)
What two whole number powers of 2 does 2 5/3 come between?
The two whole number powers of 2 does 2 5/3 come between 3 and 4.
What is whole number?The number starting from 0 and running to the infinity are called whole numbers. Such as, 0,1,2,3,4,5...........
Place given number between two consecutive integers: 3 < 2 5/3 < 4
Thus, 3 <2^ (5/3) < 4.
Learn more about whole number.
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Sophia reads a book at a rate of 1 page every 4 minutes. If her reading rate remains the same, which method could be used to determine the number of minutes takes her to read 24 pages? A. Divide 24 by 4
B. Add 24 and 4
C. Subtract 4 by 24
D. Multiply 4 by 24
Answer: D
Step-by-step explanation:
24*4=96 Which is D
The scale on a map is 2 inches equals 50 miles. You measure 4 3/4 inches on the map. How many miles is that in real life? Enter the answer as a decimal.
WILLLLL GIVE BRAINLEST
WILLLLL GIVE BRAINLEST
WILLLLL GIVE BRAINLEST
WILLLLL GIVE BRAINLEST
WILLLLL GIVE BRAINLEST
the photo is attached!! Thankss
Answer:
The third one, is the correct
Answer:
The First Option is correct
Step-by-step explanation:
Hope this Helps! :)
Please answer this correctly without making mistakes
Answer:
(3,-4)
Step-by-step explanation:
2 fifths - negative 3 fifths
Answer:
yes
Step-by-step explanation:
The ratio of the numbers of Ann's picture cards to the number of Wendy's
picture cards was 7:8. After Wendy gave 8 picture cards to Ann, they each had
the same number of picture cards. How many picture cards did they have
altogether?
Answer: There answer is 53 because of 78-25
Step-by-step explanation:
Aunt Helen is trying to learn 100 words in Spanish. She read
somewhere that 15 minutes of practice will allow her to
memorize 6 words correctly.
How many hours of studying will
Helen need in order to memorize all 100 words?
Answer:
Step-by-step explanation:
The initial information given is 15 minutes = 6 words.
Divide 100 words total by 6 words for 15 minutes. This will give a number to multiply by.
100÷6 = 16 2/3
There are two ways I did this.
Option 1:
Step 1: Multiply both the 15 minutes and the 6 words by 16.
You get 240 minutes=96 words.
Now you need to make the 6 words to 4 words to get to the 100 words.
Step 2: Divide both sides (the 15 and the 6) by 3, and you get 5 and 2. Multiply both the 5 and the 2 by 2 and get 10 and 4. You want the four to get the 96 to 100.
Add that to the partially finished equation (the bolded and underlined).
(240 minutes + 10 minutes) = (96 words + 4 words) = (250 minutes=100 words)
Another way you could do the second step is to just multiply 2/3 by 15 and 6. Much faster.
Option 2:
Much faster and easier.
Multiply the 15 minutes = 6 words by 16 2/3. Change 16 2/3 to mixed number of 50/3 and then save product to calculator memory for easier way.
15 • 16 2/3 = 250 minutes 6 • 16 2/3= 100
What is the quotient?
x-3) 4x2+3x+2
What is the slope of the line passing through the points (1, 2) and (5, 4)? A .−2 B.12 C.1 D.2
Answer:
B, 1/2
Step-by-step explanation:
The equation for slope of line is [tex]\frac{y_{1}-y_{2}}{x_{1}-x_{2}} = \frac{4-2}{5-1}= \frac{2}{4} = \frac{1}{2} , B[/tex]
I hope this helps! :)
How do you simplify 5 to the power of 5 OVER 5 to the power of 9
Answer:
[tex]5^{-4}[/tex]
Step-by-step explanation:
All you do is subtract the exponents (5 - 9), so it would look like this:
[tex]\frac{5^{5}}{5^{9}} = 5^{(5-9)} = 5^{-4}[/tex]
I GIVEEEEE BRAINLILST
Answer:
73.5
Step-by-step explanation:
HOYAAAAAAAAJIIJUJJ
Answer:
........the answer is 73.5
1. In ABC, m
Which expression correctly relates the lengths of the
sides of this triangle?
(1) ABC BC< CA
(3) AC< BC < AB
(2) ABC AC< BC
(4) BC< AC < AB
Answer:
4 d
Step-by-step explanation:
Given D is mid-point of BC and AD⊥AC
From right angle △DAC
cosC=
a/2
b
=
a
2b
...(i)
also from cosine formulae
cosC=
2ab
a
2
+b
2
−c
2
...(ii)
From (i) and (ii) we get
a
2b
=
2ab
a
2
+b
2
−c
2
⇒4b
2
=a
2
+b
2
−c
2
⇒b
2
=
3
a
2
−c
2
∴cosAcosC=
2bc
b
2
+c
2
−a
2
.
a
2b
=
ca
[(
3
a
2
−c
2
)+c
2
−a
2
]
=
3
2
(
ca
c
2
−a
2
)
Can someone please help it’s very important, give a full description please
Answer:
Explained below
Step-by-step explanation:
We are told that; Line CA = Line CD
Thus, it means that;
∠ACD = ∠BCD
Line CE is equal in both triangles. Thus,
Line CE = Line CE
This then implies that;
ΔACD = ΔBCD
Finally, it means that;
Line AD = Line BD
Since Line AD = Line BD, it means the perpendicular line from point C touching D is a bisector of Line AB
13. The manager of a clothing store planned to give free turkeys to salespersons selling over $10,000 during the fall harvest sale. Of the 110 salespersons working at the store, only 8 sold over $10,000. What percent of the salespersons received turkeys?
Answer:
7.27% of the salespersons received turkeys
Step-by-step explanation:
Of the 110 salespersons working at the store, only 8 sold over $10,000.
So those earned turkeys.
As a proportion, this is: 8/110 = 0.0727
To find the percentage, we multiply the proportion by 100%. So
0.0727*100% = 7.27%
7.27% of the salespersons received turkeys
Pls answer as much as u can I’ll mark u pls :(
Answer:
12. 10.5 cm
13. 16 m
14. 8 m
15. 50.24 m
16. 200.96 m2
17. (16+4 =20 ÷2 =10 ·10·π =314 ÷2 =157) + (16·4 =64) =221 in2
18. (1.1 · 1.2 =1.32) + (1.2 · 4 =4.8 ÷2 =2.4) =3.72 in2
19. 10·5=50
20. c.(1/2 d)^2·π
