What's the result of subtracting the second equation from the first ? please provide steps <3
2x + 4y =2
-2x+ y = -9
someone please help!!! I’ll give you brainlist!
Answer: Point P
Step-by-step explanation:
if x/ 3=3/x then what is the value of x
1.-3
2.3
3.+-3
Answer:
x = ±3 (Option 3)
Step-by-step explanation:
[tex]\frac{x}{3} = \frac{3}{x}[/tex]
Multiply both the sides with 3.[tex]=> \frac{x}{3} \times 3 = \frac{3}{x} \times 3[/tex]
[tex]=> x = \frac{9}{x}[/tex]
Multiply both the sides with 'x'.[tex]=> x \times x = \frac{9}{x} \times x[/tex]
[tex]=> x^2 = 9[/tex]
Root-square both the sides.[tex]=> \sqrt{x^2} = \sqrt{9}[/tex]
[tex]=> x = (+3) \: or \: (-3)[/tex]
∴ x = ±3
please help me with this one
Answer:
a: 500in squared
Step-by-step explanation:
A=(a+b)/2 x h.
19+31=50
50/2=25
25×20=500
△ABC∼△DEF . Find DF.DF.
Answer:
do the answer is 24
in the picture there's the steps
Answer:
Step-by-step explanation:
since they are similar triangle use this ratio
AB/DE=AC/DF
4/12=8/3(x+1)
do cross multiplication
12*8=3*4(x+1)
96=12(x+1)
96=12x+12
96-12=12x
84/12=x
7=x
substitute the value of x
3(x+1)
3(7+1)
3*8
24
A cable repair person has 7.9 meters of wire. Suppose each meter of the wire weighs 3.2 ounces. Find the weight of the wire.
YO HELP ME OUT!!!! Question is in the screenshot below PLEASE answer correctly, I am running out of time!
Answer:
V = 696.91
Step-by-step explanation:
Volume of a sphere formula:
V = 4/3πr³
Given:
d = 11
r = d/2
r = 5.5
Work:
V = 4/3πr³
V = 4/3π(5.5)³
V = 4/3π(166.375)
V = 696.91
hhhhhhhhhhhhhhhhhhhhhh
Answer:
13 miles
Step-by-step explanation:
The shortest distance would be a straight line between the two points. This would be a hypotenuse of a right triangle
We can use the Pythagorean theorem to determine the length
a^2+b^2=c^2
5^2 +12^2 = c^2
25+144= c^2
169 = c^2
Taking the square root of each side
sqrt(169) = sqrt(c^2)
13 = c
Answer:
8.5 milessssssss and aaaaaa
Doug is going to ride his bicycle 3,000 miles across the United States, from coast to coast. He wants to choose the route that will give him the greatest chance of success. Here's what he finds in his research:
Answer: hello your question has some missing data below is the missing data
There have been 2 attempts on the northern route from Maine to Washington. Both of those riders made it 2,000 miles and quit in Montana. There have been 19 attempts on the central route from Virginia to California; 9 of those riders didn't make it out of Virginia and the other 10 made it all the way to the Pacific. There have been 32 attempts on the southern route from Florida to San Diego. One of those riders made it the whole way. Another realized he was out of shape, and quit before he even started. The other 30 riders quit somewhere in Texas. They were evenly distributed between 1 , 300 and 1 , 700 miles. For the northern route, the median distance covered will be the mean. For the central route, the median distance covered will be the mean. For the southern route, the median distance covered will likely be the mean
answer : Doug should choose the Central route
Step-by-step explanation:
Number of Available routes = 3
Northern route ; Total distance covered = 2000 miles
Central route : Total distance between Virginia and California = 2818.5 miles
percentage of success = 10 / 19 * 100 = 52.63 %
Mean distance covered = 2818.5 * 52.63% = 1483.38 miles
southern route
Distance to be covered = 2,548 miles
number of attempts = 32
percentage of success = 1 = ( 1 / 32) * 100 = 3.12%
median distance covered by 30 riders = 1300 + ( 400 / 30 ) = 1313.33
Conclusion :
Doug should choose central route because it has the highest percentage of success and longest distance covered ( i.e. closest to 3000 miles ) and it is also coast to coast
I'm quite confused on which answer is it Please help.
Answer:
[tex] \rm Option \; D [/tex]
Step-by-step explanation:
→ Volume of cube = (l)³ cubic units
l denotes length of the side→ Volume of cube = 1 unit × 1 unit × 1 unit
→ Volume of cube = 1 cubic unit
Option D is correct. ☑
linear or exponential
Answer:
exponential
Step-by-step explanation:
WILL GIVE BRAINEST
all I need is the answer
thank you
The sum of two numbers is 75. The second number is 3
less than twice the first. Find the numbers. Please give me the answer step by step on how to solve it.
Answer:
x= 26 y = 49
Step-by-step explanation:
let the first number be x and second be y
then
according to the question,
x + y= 75
x + (2x- 3) = 75
x + 2x - 3 = 75
3x = 75 +3
3x = 78
x = 78/3
x = 26
thus first number is 26
and second number is 2x-3=2×26-3
= 52 - 3= 49
Please help on how to solve this
Answer:
11,73 cm (round to the nearest hundredths) ; 112 degrees
Step-by-step explanation:
circumference = 2 x radius x π = 2 x 6 x π = 37,699112 cm
measure of the arc =
37,699112 : 360 = x : 112
x = (112 * 37,699112)/360 = 11,728613 cm
the measure of the angle is given = 112 degrees
What is the measure of arc wx in the diagram below?
116"
Wo
45°
S
X
R
A. 116°
B. 45°
C. 710
D. 26°
someonee helpp plss
Answer:
to find the WX you have to use this formula
m>S=TR-WX/2
45=116-WX/2
90=116-WX
WX=116-90
WX=26
the answer is D 26
Answer:
D
Step-by-step explanation:
The secant- secant angle WSX is half the difference of the intercepted arcs, that is
[tex]\frac{1}{2}[/tex] (116 - WX)° = 45° ( multiply both sides by 2 to clear the fraction )
116 - WX = 90° ( subtract 116° from both sides )
- WX = - 26° ( multiply both sides by - 1 )
WX = 26° → D
Victor makes decorations for his birthday party. He needs 5/6 yard of ribbon for each decoration. How much ribbon does Victor need to make 7 decorations
Answer:
35/6
Step-by-step explanation:
first you have to multiply 7 by 5/6 and that will get you to the answer of 35/6
mark me brainliest pls
EASY MATH PLEASE HELP! :)
I WILL GIVE BRAINLIEST!
QUESTION: Find the area!
Answer:
256ft
Step-by-step explanation:
18 times 8 plus 16 times 16 divided by 2
hope this helps! :D
70% in the SIMPLEST Form
Answer:
7/100
Step-by-step explanation:
Find the GCD (or HCF) of numerator and denominator
GCD of 70 and 100 is 10
Divide both the numerator and denominator by the GCD
70 ÷ 10
100 ÷ 10
Reduced fraction:
7
10
Therefore, 70/100 simplified to lowest terms is 7/10.
Steven earns extra money babysitting. He charges $31.00 for 4 hours and $46.50 for 6 hours. Enter an equation to represent the relationship. Let x represent the number of hours Steven babysit and y represent the amount he charges. The equation is y answer here
Answer:
y = 7.75x
Step-by-step explanation:
Steven earns extra money babysitting.
Step 1
Let us find the amount he earns per hour based on the charges given in the question.
a) He charges $31.00 for 4 hours
4 hours = $31
1 hour = x
Cross Multiply
4x = $31
x = $31/4
x = $7.75
b) And $46.50 for 6 hours.
6 hours = $46.50
1 hour = x
Cross Multiply
6x = $46.50
x = $46.50/6
x = $7.75
This means, Steven earns $7.75 per hour.
Step 2
Let
x represent the number of hours Steven babysit
y represent the amount he charges.
Therefore, an equation to represent the relationship is written as:
y = $7.75 × x
y = 7.75x
B. The sum of 3 and a number is -2, what is the number?
What is the area of the triangle?
10
8
6
Answer:
10
Step-by-step explanation:
PLEASE HELP ME ASAP I NEED HELP
Answer:
4w = 25
w= 6.25
Step-by-step explanation:
We know that w + w + w + w is the same as 25 because the scale is balanced.
This is writted as 4w = 25
To solve for w, divide both sides by 4:
(4w)/4 = 25/4
w = 25/4
w = 6.25
Please helppp it would be much appreciated
Answer: B is the correct answer!
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Well since you pretty much know that electrons are negative soo... B
Taxi A charges $0.25 per mile and an initial fee of $5. Taxi B charges $0.5 per mile and an initial fee of $2. In how many miles will the cost of Taxi B will be the same than Taxi A.
Answer:
12 miles
Step-by-step explanation:
Let
x = number of miles
Taxi A:
5 + 0.25x
Taxi B:
2 + 0.5x
In how many miles will the cost of Taxi B will be the same than Taxi A
Equate cost of taxi A and taxi B
5 + 0.25x = 2 + 0.5x
Collect like terms
5 - 2 = 0.5x - 0.25x
3 = 0.25x
Divide both sides by 0.25
3 / 0.25 = 0.25x / 0.25
x = 3/0.25
x = 12 miles
x = number of miles = 12 miles
Study the image and complete the sentence.
The image shows panels that convert
example of using
sources,
to electricity. This is an
Answer: Choice A) Solar energy; renewable
The image shows panels that convert solar energy to electricity. This is an example of using renewable sources.
This is in contrast to something like coal energy which is nonrenewable. Coal is finite and will run out some day, unlike the sun's energy which won't run out any time soon. Sure it will eventually die off in about 5 billion years or so, but that timescale is much longer compared to the amount of coal is left. So this is a benefit to using renewable resources.
hey! i’ll give brainliest please help
Answer: Its the first one
what is the value of r if 3r =243?
Answer:
243 divided by 3 equals 81 so r=81
Step-by-step explanation:
Answer:
81
Step-by-step explanation:
Simplify the equation. 3r=243, so divide 3 on both sides, and you get r=81, hence 81 is the answer.
help me with this please (2)
Answer:
Step-by-step explanation:
surface are of triangular prism =(a+b+c)h+bh
=(5+5+4)11+4*6
=14*11+24
=154+24
=178 yd^2
"The ratio of five less than thrice a number x and four" please write in symbols
Answer:
(3x - 5)/4
Step-by-step explanation:
(3x - 5)/4 desribes five less than thrice a number x over four. Please let me know if this is what you mean.
Give the slope of the line which is perpendicular to
y = −3x −2
Answer:
1/3
Step-by-step explanation:
y = −3x −2
This is in the form y = mx+b where m is the slope
This line has a slope of -3
We want the slope of a line that is perpendicular
Lines that are perpendicular have slopes that are negative reciprocals
m = -(1/-3)
m = + 1/3
The slope of a line that is perpendicular is 1/3