70%
50 * x = 35
x= 35/50
x=0.7
x=70%
can you tell me how to solve this problem using substitution step by step?
y = -2x - 9 and 6x - 5y = - 19
Answer:
x = -4
Step-by-step explanation:
The first equation tells us what y is equal to. We then substitute wherever there is a y with what y equals.
y = -2x - 9
6x - 5y = -19
6x - 5(-2x-9) = -19
6x + 10x + 45 = -19
16x + 45 = -19
16x = -64
x = -4
Acell phone weighs about 2.8x 10" pounds. Which value of n is most reasonable?
O1
Answer:
write in algorithm and draw a flowchart to calculate the factorial of a number (N). verify your results by a trace table by assuming N=5
can someone please help me with this thank you. Factor completely 64x2 – 49. (1 point) 0 (7x – 8)(7x + 8) O (7x – 8)(7x – 8) O (8x – 7)(8x - 7) O (8x - 7)(8x + 7)
Answer:
(8x-7)(8x+7)
Step-by-step explanation:
64x²-49
(8x)²-7²
(8x+7)(8x-7) (using a²-b²=(a+b)(a-b)
Or
(8x-7)(8+7)
Please help!!
The table below represent Mrs. Cambra playing Call of Duty and the number of kills she gets.
Games played Number of Kills
0 0
2 6
4 12
6 18
What is the rate of change?
Answer: +6 each time
Step-by-step explanation:
3. Find f(2) given f(x)=3x^2+ 2x + 16
Answer:
32
Step-by-step explanation:
f(2)=3(2)^2+2(2)+16
f(2)=12+4+16
f(2)=32
Question 7
1 pts
Mike purchased a car worth $18,000 in the year 2008. It loses its value by 6% per
year. What is the value of the car in 2020? Round your answer to the nearest whole
dollar, and do not enter any decimals or commas.
$
Need some help
Answer:
I'm pretty sure that'd be 8567
Find the slope of the line passing through the points (-5,7) and (-5,-9)
Can someone help me ASAP
Answer:
D. 1/5^15
Step-by-step explanation:
When an exponent is negative you need to get the reciprocal to make it positive.
Answer: you chose the correct answer, d, if the exponent is negative you need to find it’s reciprocal
Step-by-step explanation: 5 is a positive number but the exponent is not, in order for it to be positive the reciprocal is 1/5 because you are basically flipping the number 5 (which is equal to 5/1)
Which of the following tables could possibly
represent the graph?
х
y
-2
-4
A)
B)
х
-2
-1
-1
-1
WOWOK
0
2
1 5
х
Y
1
3
.X
0
1
2
3
4
C)
2
1
D)
3
3
10
g(x)
17 | 24 | 31
38
4
-3
Answer:
D.)
Step-by-step explanation:
The graph is decreasing from left to right therefore as the x values increases the y values are decreasing. You can also say that the graph has a negative slope.
help me answer this please!!!
Answer:
39.6 ft.
Step-by-step explanation:
Height of the top of the goal post would be x + 5.5
So for we need to calculate x first,
For x:
[tex]tan\ \theta = \frac{perpendicular}{base}\\\\tan\ 61=\frac{x}{20}\\\\20*tan61=x\\\\x=20*1.732\\\\x=34.64\ ft[/tex]
So height of the top of the goal post would be 34.64 + 5.5 which is
39.64 ft. rounding it to nearest tenth would be 39.6ft.
I attached an image too as well check it out.
BRAINLEST and thanks!!
Answer:
X=0.500
Step-by-step explanation:
maths
Sarah works 6 hours a day, Monday through Friday. What is her pay for a week?
Answer:
No one can answer unless you include the money per hour or day or week
Step-by-step explanation:
Answer:
well she works 5 days since it says monday through friday so 5 x 6 =30 she works 30 hours a week but you didnt out how much she early for each hour or one day so thats all you can figure out
Step-by-step explanation:
Arun's restaurant bill is $58, and he wants to leave the waiter an 18 percent tip. What will Arun's total be?
Answer:
47.56 $
Step-by-step explanation:
I plugged it in my calc
can someone please help me i dont know how to do it.
A football team loses 8 yards each quarter of the game. How many yards did they lose in a 4 quarter game?
32
-32
12
-12
Answer:they lost 32 yards
Source: trust me bro
Answer:
The awnser is -31 trust me ok i Got it wrong it showed me the awnser so its -31
Step-by-step explanation:
Determine whether each set of numbers can be the lengths of the sides of a triangle.
Answer:
1. not possible 2. triangle 3. not possible 4. not possible
Step-by-step explanation:
What is 0.00015 in scientific notation?
Answer:
1.5 * 10^(-4) is the scientific notation.....
Write an equation for the lines shown.
Black line: y=-3x+2
Blue line: y=-3x+8
Answer:
blue line: y=3/-1x+8
black line: y=3/1x+2
Step-by-step explanation:
can someone plz help me! plz i also added some more points plz help
Answer:
15x + 12(10 - x) = 1417 and 3Step-by-step explanation:
The number of people who have two-course meal is (10 - x)
Correct equation is:
15x + 12(10 - x) = 141Solving for x:
15x + 120 - 12x = 1413x = 141 - 1203x = 21x = 7Answer:
Number who have three-course meal = 7Number who have two-course meal = 3Answers:
1) 15x + 12(10 - x) = 141
2) 7 and 3
15x + 12(10 - x) = 141
15x + 120 - 12x = 141
3x = 141 - 120
3x = 21
x = 7
Help meh. plssss. I need thisssss. PLEASE.
Im pretty sure the unit rate would be 50 mph!
Answer:
50
Step-by-step explanation:
You look at the graph, when x is one it intercept in the middle of 75 and 25, and that is 50
Simplify. Use a horizontal format.
(-2y2 - 4y - 11) + (4y2 - 4y)
A map of Long Island has the scale 2.75 cm= 16km. On the map, target Rock is 23.2 cm from Lake Montauk. Find the distance from Target Rock to Lake Montauk. PLEASE HELP ASAP
Answer:
ytjyhyjhuyjhytujhyuhjnfh
Step-by-step explanation:
Naomi's square bedroom has an area of 90 square feet. What is
the length of one of the walls? Round to the nearest tenth if
necessary.
A) 9.0 feet
B) 9.5 feet
C) 22.5 feet
D) 45.0 feet
Answer:
9.5 feet
Step-by-step explanation:
According to the question
The equation is
x²=90
x=√90
x=3√10 or 9.5
Answer:
9.5 Ft
Step-by-step explanation:
:)
Simplify the expression by combining like terms 2x+8-x+10
Answer:
x+18
Step-by-step explanation:
Let's simplify step-by-step.
2x+8−x+10
=2x+8+−x+10
Combine Like Terms:
=2x+8+−x+10
=(2x+−x)+(8+10)
=x + 18
There are 16 forwards and 40 guards in Leo's basketball league. Leo must include all players on a team and wants each team to have the same number of guards. If Leo creates the greatest number of teams possible, how many guards will be on each team?
List the multiples of each number:
16: 1, 2 , 4, 8 , 16
40: 1, 2 , 4 , 5, 8, 10, 20, 40
The greatest common multiple is 8
40 guards / 8 = 5
There will be 5 guards on each team.
Which set best describes the numbers used on the scale for a standard thermometer?
A real numbers
B whole numbers
C integers
D rational numbers
Convert 56,000,000,000 from standard to scientific notation form.
Help pls
Answer:
5.6 * 10^ 10
Step-by-step explanation:
Зr - 7 = 11
What is the answer
What is the square root of 48?
Answer:
6.92
Step-by-step explanation:
. A customer at a store paid $42 for 4 pairs of pants and 3 shirts. At the same store, a
second customer paid $2 more for 1 pair of pants and 7 shirts. The price of each pain
of pants is the same, and the price of each shirt is the same.
-Which system of equations can be used to find the price in dollars of each pair of
pants, x, and each shirt, y?
Answer:
A
Step-by-step explanation: