Answer:
[tex]c = -P + R[/tex]
Step-by-step explanation:
evaluate f(z) for z=7
Which linear equation is represented by the table?
Answer:
On E. the first answer is = -2.5x-15 and the solution is (-6,0)
Step-by-step explanation:
I just guessed this on E. and got it right.
-7-2x=7(x+8)
What is the answer for this expression
Answer:
x=-7
Step-by-step explanation:
1. Distribute the 7 into the parenthesis: -7-2x=7x+56
2. Combine like terms by doing the opposite operation to the numbers: -7=9x+56 (added 2x to 7x)
3. Subtract 56 to each side of the equation: -63=9x
4. To isolate the variable "x," divide each side by 9: x=-7
a music app charges 2$ to download the app plus 1.29$ per song downloaded.Write and solve a linear equation to find the total cost to download 30 songs
Answer:
c = 1.29x + 2
c= cost
x= song
cost= 39.7
Step-by-step explanation:
1.29×30=38.7
38.7+2=19.7
This shape is a polygon.
O True
O False
Which of the following is a rational number?
A) v15
B) v16
C) v17
D) v18
(the v is supposed to be the square root sign)
Answer:
B. √16=4
Step-by-step explanation:
what is the equivalent to (2 − 5)2
Answer:
-6
Step-by-step explanation:
Select the equivalent expression.
1/3 = ?
Answer:
A. 3^-1
Step-by-step explanation:
1/3 turned into a decimal is .33 (Repeating). Let's find which answer can repeat the same way.
A. 3^-1 = .33
B. (-1)^3 = -1
C. (-3)1 = -3
I am assuming you do not need work shown. I have used a calculator for this one.
Which of these graphs represents a function?
A. W
B. X
C. Y
D. Z
Answer:
Y
Step-by-step explanation:
Justin earned $8.50 per hour working at a coffee shop. 187 each week before taxes an equation to find the number of hours he worked each week. What's the equation ?
Answer:
1589.5
Step-by-step explanation:
blueberries cost $4.00 per pound.A how many pounds can you buy for $1.00? so i took half of 4 which is 2 and i said it was 2 pounds and i dont know if its right
Answer: 1 /4 of a pound
Step-by-step explanation:
Since 1 pound = 4.00$, 1.00$ would equal 1/4 of a pound.
How did I solve this? I divided 4$ by 4 and got 1 then divided 1 pound by 4 and got 0.25 or 1/4
2 would not be right because you would be paying for 2 pounds which is 8 dollars, not 1.
Hope this helps! if it did could I have a Brainly? Thx! :3
tracey ran 1,000 meters in 5 minutes. how many meters did she run per minute?
Answer:
200 miles per minutes
Step-by-step explanation:
Answer: 200 meters
Step-by-step explanation: Divide 1,000 by 5. You should have a result of 200 meters.
Which choice lists the numbers in increasing order?
Answer:
D
Step-by-step explanation:
Because negative is smaller than fractions. and ABC, is all off.
Answer: I think the answer is D/ the last answer
Step-by-step explanation:
what is the x coordinate
Answer:
the x coordinate is the horizontal line wich is going in a straight line.
Step-by-step explanation:
The coordinates of
A are (0.5,4)
B are (-3,0)
C are (-1,1)
The formula for coordinates is (x,y).
The x coordinates are the ones that are on the horizontal line.
The y coordinates are the ones that are on the vertical line.
Solve for x in the following equation:
kx = m + nx
Answer:
x=[tex]\frac{m}{k-n}[/tex]
Step-by-step explanation:
First you subtract nx from both side getting kx-nx=m.
Then you factor out x getting x(k-n)=m
and now you divide both sides from (k-n) and you will get the answer.
Jenny has $2.40 deducted from her monthly allowance every time she forgets to do a chore.
If she forgets three times in one month, what will be the change in Jenny’s total allowance?
Can someone help please!!!
Answer:
$7.20
hope this helps
whats the answer to 13(9−6m)+14(12m−8)
Answer:
90m+5
Step-by-step explanation:
117-78m+14(12m-8)
117-78m+168m-112
90m+5
Answer:
90m+5
Step-by-step explanation:
117-78m+14(12m-8)
117-78m+168m-112
90m+5
Question 19 please tysm for helping
Answer:
1
Step-by-step explanation:
just multiply across and youll get 72/72 and then you simplify to get 1
sorry if this is wrong haha
Answer:
simplified- 1
Multiplied-1
evaluate-1
Step-by-step explanation:
f(x)=√8+2
Find the range
Answer:
what does f or x mean
Step-by-step explanation:
On a map, the distance between two cities is 26 cm. If the map scale is 2 cm: 11 mi., what is the actual distance between the two cities?
Answer:
143 miles
Step-by-step explanation:
To get the answer, you should first, divide 25 cm by 2 cm = 13 cm so it will be easier for you to multiply. Then you should multiply = 13 by 11 = 143 miles
x2+9x+20 plz help with it
Answer:
11x + 20
Step-by-step explanation:
x2 + 9x + 20
2x + 9x + 20
11x + 20
Hope this helped!
Answer:
(x + 5)(x + 4)
Step-by-step explanation:
Assuming you require the expression to be factored
Given
x² + 9x + 20
Consider the factors of the constant term (+ 20) which sum to give the coefficient of the x- term (+ 9)
The factors are + 5 and + 4, since
5 × 4 = + 20 and 5 + 4 = + 9 , thus
x² + 9x + 20 = (x + 5)(x + 4) ← in factored form
A hiker is 3.5 miles from her campsite when she begins to walk back to it. She hikes back toward the campsite at a constant rate of 2.1 miles per hour.
Which equation models the distance of the hiker from her campsite? (Let m represent her distance, in miles from the campsite and h represent the number of hours since she begin walking back.)
O m= 3.5+ 2.1h
Om= 3.5h - 2.1
O m = 3.5h + 2.1
m = 3.5 - 2.1h
Two trains traveling the same speed leave the city. The southbound train reaches its destination in 45 minutes. The eastbound train reaches its destination in one hour. how fast were the trains traveling if their destinations are 88 miles apart.
Answer:
70.4 mphStep-by-step explanation:
Let the speed be x mph
The distances are
45/60x= 3/4x and xThe line connecting the two destinations is the hypotenuse of the right triangle with legs of 3/4x and x, which is 88 miles
Then we can put it as expression and solve for x:
(3/4x)² + x² = 88²9/16x² + x² = 88²25/16x² = 88²25x² = 4²*88²(5x)² = 352²5x = 352x = 352/5x = 70.4 mphFind the x-coordinate of Q' after Q(-2.5) was reflected over the line y = -x + 4.
Answer:
Q' would be (5, 6)
Which of the following is the best estimate for the total change in distance from the group of students' original position at the surface? Round to the nearest ten.
Answer:
- 20 feet
Step-by-step explanation:
solve 2 - v = - (v - 2)
Answer:
All real numbers
Step-by-step explanation:
Answer:
0=0
Step-by-step explanation:
2-v=-(v-2)
2-v=-v+2
-v+v=2-2
0=0
Use FOIL to determine the following Expression
Answer:
Undefined?
Step-by-step explanation:
x^2-12x+20=(x-2)(x-10)
x^2-12x+20=x^2-10x-2x-20
-12x+20=-12x-20
20=-20
40=0
plz help. this is for apex if you dont know.
Answer:
1/4/4/3 is the same as 1/4 x 3/4
Step-by-step explanation:
first fraction-keep
Division sign-flip to multiplacation
Second sign-flip
The value of x varies directly with y, and when x= 2/3, y=6. Find the value of y when x = 10 1/3
See the image above for explanation.
All done!
Solved!
:-)
When x= ([tex]10\frac{1}{3}[/tex]) the value of y is 93.
What is proportion?In general, the term "proportion" refers to a part, share, or amount that is compared to a total.
According to the concept of proportion, two ratios are in proportion when they are equal.
Two ratios or fractions are equal when an equation or a declaration to that effect is utilised.
A mathematical comparison of two numbers is called a proportion. According to proportion, two sets of provided numbers are said to be directly proportional to one another if they increase or decrease in the same ratio. "::" or "=" are symbols used to indicate proportions.
Given:
when x= 2/3, y=6.
Using constant proportionality
y = kx
k= y/x
k = 6 / (2/3)
k = 6 x 3/2
k = 9
Now, k= y/x
9 = y/ ([tex]10\frac{1}{3}[/tex])
9 = y / (31/ 3)
y = 9 x 31/3
y = 93
Hence, the value of y is 93.
Learn more about proportion here:
https://brainly.com/question/26974513
#SPJ5
Please help!
Theresa's Book Barn sold $10,347 worth of books during September. In October, their sales were $12,115. How much higher were Theresa's book sales during October than in September? Explain how you got your answer.
Answer:
awnser is 1718
Step-by-step explanation:
Answer:
$12,115 - $10,347 = $1,768. the difference is $1,768 this is how much more in sales they had in October
