Answer:
The input is -7
Step-by-step explanation:
f(x) = 2x + 5,
Let f(x) = -9
-9 = 2x+5
Subtract 5 from each side
-9-5 =2x+5-5
-14 =2x
Divide by 2
-14/2 =2x/2
-7 =x
Answer:
The would be -7.
Step-by-step explanation:
Given function :-
f ( x) = 2x + 5.given output, f( x) = -9
plug the f(x) as -9.
-9 = 2x + 5Move the constant to the left hand side and change their sign.
-9 - 5 = 2 x-14 = 2xDivide both side by 2.
-14/2 = 2x / 2-7 = xTherefore, the input of this function would be -7.
Bronze which costs $7.05/kg is made by
combining copper which costs $6.20/kg with
tin which costs $8.70/kg. Find the number of
kg of copper and tin required to make 5 kg of
bronze.
Find the number of kg of copper and tin required to make 15.3 kg of bronze. (NO LINKS)
Answer: 3.3 kg of Cu, 1.7kg of Sn
I abbreviate copper as Cu and tin as Sn.
Step-by-step explanation:
For 5 kg of $7.05$/kg bronze: Let x be the mass of Cu. The mass of Sn would be 5-x.
Multiply these two masses by their respective element cost.
Cu = ($6.20/kg)x [The total value of copper in 5 kg of bronze]
Sn = ($8.70/kg)(5-x) [The total value of tin in 5 kg of bronze]
We know that:
($6.20/kg)x + ($8.70/kg)(5-x) = $7.05
Solve for x. I get
x= 3.3 kg of Cu
5-x = 1.7kg of Sn
==
Check the result for 5 kg of bronze:
(3.3 kg of Cu)*($6.20/kg) = $20.46 cost of Cu
(1.7kg of Sn)*($8.70/kg) = $14.79 cost of Sn
Thus, the total cost for 5kg of bronze is $35.25. That makes it $7.05/kg.
Given the relation {(2, 3), (-2, 2), (1, 5), (0, -1)}, state the domain.
A. {-1, -2, 2, 3}
B. {-2, 0, 1, 2}
C. {-1, 0, 1, 2}
D. {-2, -1, 0, 3}
Answer:
C.{-1,0,1,2}
Step-by-step explanation:
the distance from Gracie's school to the corner market is 47 yds the distance to die what station is 12 times as far how far is the BART station from Grace School?
A pair of pants that regularly sells for $80 is on sale for 25% off. What is the sale price of the pair of pants?
Answer:
60 dollars
Step-by-step explanation:
divide 80 by 4 is equal to 20 then subtract 20 from 80 and get your answer
Which transformation was used to create triangle G H I from triangle D E F ?
Answer: Triangle GHI is translated using the rule (x, y) → (x + 5, y) to create triangle G′H′I′. If a line segment is drawn from point G to point G′ and from point H to point H′, which statement would best describe the line segments drawn? They are parallel and congruent. Triangle ABC has been translated to create triangle A′B′C′.
Step-by-step explanation:
Hope this helps!
a theater has 418 seats put in rows of 19 seats each. how many rows are in the theater
Answer:
22
Step-by-step explanation:
418 divided by 19 is 22.
help me pls ASAP I need it in 5mins
First option, empty set
Find the gradient of the line segment between the points (0,-6) and (2,-16).
hope you like my answer its 19
Rajiv and his family left home on a trip and drove for 2 hours before they stopped to eat. After 1.5 hours, they were back on the road. They arrived at their destination 3 hours later at 5:00 P.M. What time did they leave home?
Answer:
The first one is 1 and the second one is 1:00
Step-by-step explanation:
e set of words that refers to the clock is: midnight (exactly 12:00 am), morning (from 12:01 am to 11:59 am), noon (exactly 12:00 pm), afternoon (from 12:01 pm to 6:00 pm), evening (from 6:00 pm to 11:59 pm).
BRAINLIEST ASAP! Please someone help
Answer:
B. Distributive Property
Step-by-step explanation:
You are distributing the 2 to the x and 3.
Hopefully this helped!
Brainliest please?
Cai left his house for work and was gone 4 2/3 hours. he spent a total of 5/6 hours driving to and from work and didnt go anywhere else. How long was he at work?
A.5 1/2 hours
b. 3 5/6 hours
c. 3 1/6 hours
d. 4 1/6 hours
Answer:
[tex]4\frac{1}{6}[/tex] hours
Step-by-step explanation:
Substract total hours from hours Cai spent driving to find how long he was at work.
[tex]4\frac{2}{3}[/tex] - [tex]\frac{5}{6}[/tex] = ?
Substract the second expression [tex]\frac{2}{3} - \frac{5}{6}[/tex] by the first expression 4.
[tex]\frac{25}{6}[/tex]
Convert to a mixed number.
[tex]4\frac{1}{6}[/tex]
Therefore, the answer is [tex]4\frac{1}{6}[/tex] hours.
Stephanie found a sweater on sale for $12.88 the original price of the sweater was $34.95 about how much did she save on the sweater
Answer:
$22 or 22.07
Step-by-step explanation:
So the exact the answer is 22.07, but if you round it would equal 22 dollars.
Since the sweater was on sale and you would save $12.88!
34.95 - 12.88 = 22.07
a math channel that helped tremendously is math antic, just search decimal subtraction math antics!
Hope this helped! Please mark brainly if you could<3
Answer:
$22.07 or 63.15%Step-by-step explanation:
Given:
Original price = $34.95Sale price = $12.88Saved amount:
$34.95 - $12.88 = $22.07Percent value of saved amount:
22.07/34.95*100% ≈ 63.15%guys pls help me!!!!!!
Answer:
104 degrees
Step-by-step explanation:
Answer:
if i am right the answer should be x=104 degrees, apoligies if wrong
Kevin and Randy Muise have a jar containing 63 coins, all of which are either quarters or nickels. The total value of the coins in the jar is $9.75. How many of each type
of coin do they have?
The jar contains ? quarters.
The jar contains ? nickels.
Answer:
Kevin and Randy Muise have a jar containing 62 coins, all of which are either quarters or nickels. The total value of the coins in the jar is $12.50.
Someone pls help me I will make you brain
Which of the following does not represent a function?
Answer:
i think it's C sorry if it's wrong
Step-by-step explanation:
i took the test and got it right so
Answer:
The third option
Step-by-step explanation:
1. To determine whether a relation is a function given a graph, use the
following criterion:
if every vertical line you can draw goes though only 1 point, then the relation is a function If you can draw a vertical line that goes though 2 or more points, y is not a function of x. This is called the vertical line test.2. As you can see, if you draw a vertical line at a specific place in the third graph, it will go through 2 or more points.
Therefore, the correct answer is the third option/graph.
Find the Measure of the missing angles "X" in the
parallelogram pictured below:
Answer:
Step-by-step explanation:
The triangle’s angles add up to 180°
So (x + 10) + (2x + 20) + (2x - 5) = 180
x + 10 + 2x + 20 + 2x - 5 = 180
5x + 25 = 180
5x = 155
x = 31
please give me a brainliest answer
Someone help me with this please
Answer: in dababy tho i dk in the poyyyu
Step-by-step explanation: im a big kid now!
Juma spent half of his salary on school fees one-eighth on farming and two thirds of the reminder on food . Calculate his July salary if he spent sh.3200 on food
Answer:
1/2 + 1/8 = 5/8 ; Rem=3/8.64
Food=2/3 × 3/3 = 1/4 ; Food=1 4 = 3200. Salary =sh12800.
Step-by-step explanation:
Which set of ordered pairs does not represent a function?
O{(-2,5), (0, -9), (8,-2), (7,4)}
O{(-3,4), (-5,4), (7, -3), (2, -9)}
O {(2, -9), (-5, -1), (-6, -3), (-5,7)}
O {(1, -8), (-9,-2), (-4,0), (4, -8)}
Step-by-step explanation:
{(2, -9), (-5, -1), (-6, -3), (-5,7)}
-5 appears twice ( this is not allowed for the function)
what is 1/2 of -16 ????????
Answer:
-8
Step-by-step explanation:
The measures of the angles of a triangle are shown in the figure below. Solve for X.
75°
(7X+14)
49°
Answer;
x=6
Step-by-step explanation:
Step-by-step explanation:
Angle in a triangle is 180
75+ (7x+14) +49 =180
75+ 49+ (7x+14)= 180
124+ (7x+ 14) = 180
124+ 14 +7x= 180
138+7x = 180
7x =180- 138
7x=42
x= 6
how to find the first 4 terms of the sequence f(n)=n^3 - 1
Answer:
3471999191818
Step-by-step explanation:
becaise its the answer
You drink 14 ounces
of water in 10 minutes.
How would
you express this
relationship as a unit
rate per minute?
Answer:
1.4 per minute
Step-by-step explanation:
10 minutes/10=1 min.
=14/10=1.4=
1.4 ounces per minute
Direct Relationship
Joe drove 165 miles in 3 hours. How many miles can he drive in 8.
Can somebody help me with this one
Answer:
$25 = $6.50d
Step-by-step explanation:
Since d represents the amount of boxes of donuts, you would need to multiply d in the equation by 6.5 or $6.50 since the problem states that 1 dozen donuts costs $6.50 (assuming 1 box contains 1 dozen donuts). $6.50d would have to equate or equal to $25 because the equation 25 = 6.5d shows the most amount of boxes of donuts Tucker could purchase with $25.
If you were wondering, Tucker could purchase up to 3 boxes donuts with $25.
Answer:
cost of 1 box = $6.50
total money =$25
he want $26 to buy 4 boxes
The area of a trapezoid is given by the formula
A
=
1
2
(
b
1
+
b
2
)
h
, where base
b
1
is parallel to base
b
2
and
h
is the height. Solve the formula for
b
2
. Show your work.
Answer:
ok I don't know but thanks for the points
Answer:
how?
Step-by-step explanation:
23) <, >, or =
3-2. 1
Answer:
>
Step-by-step explanation:
23 is greater than 3.1 or 2.1
( that is how i understood your question...might be wrong if you didn't word it weird )
please give an answer not in a link
Answer:
5/7
Step-by-step explanation:
hope this helps :)
Use the graph to answer the following.
You haven't mentioned any questions...
(9x+11) 74 what is the converse?
Answer:
7326
Step-by-step explanation:
if you use PEMDAS, you would know that you do the parentheses first which is 99, then you multiple that by 74 and that is your answer.