= 9.71 Only way I could think of to solve it
Step-by-step explanation:
10x-72=3x-4
7x=68
x=9.71
Sandy can hold her breath 5/6 minute. Adele can hold her breath 3/6 minute longer than Sandy. How long can Adele hold her breath?
Answer:
4/3 minute
Step-by-step explanation:
You can just add up both numbers and simplify it: 5/6+3/6=8/6=4/6.
Artie
25%
Len
20%
Wen
30%
Gina
25%
Artie, Len, Gina, and Wen divided a carton of baseball cards as shown in the circle graph above. If Wen's
share was 60 cards, what was Gina's share of the cards?
25
50
100
200
Answer:
50
Step-by-step explanation:
Wen: 30% of the total number of cards = 60 cards
Set this up as an equation
30/100 = 60/x
Cross multiply
30 × x = 100 × 60
30x = 6000
Divide both sides by 30 to isolate the variable
x = 200
There are 200 cards total
Gina: 25% of the total 200 cards
Set this up as an equation
25/100 = x/200
Cross multiply
25 × 200 = 100 × x
5000 = 100x
Divide both sides by 100 to isolate the variable
50 = x
Gina's share is 50 cards
What is the solution to the system of equations? y = x + 3 3x - 4y = -7
Answer:
x=-5 & y=-2
Step-by-step explanation:
Step 1: Solve y=x+3 for y:
y=x+3
Step 2: Substitute x+3 for y in 3x-4y =-7:
3x-4y=-7
3x-4(x+3)=-7
-x-12=-7 (Simplify both sides of the equation)
-x-12+12=-7+12 (Add 12 to both sides)
-x=5
-x/1=-5/-1 (Divide both sides by -1)
Step 3: Substitute -5 for x in y=x+3:
y=x+3
y=-5+3
y=-2 (Simplify both sides of the equation)
x=-5 and y=-2
Rakesh Travels 45 km in 54 minutes how much time will he take to travel 70 kilometre
Answer:
84 minutes
Step-by-step explanation:
45:54
70:x
45/54=70/x
45x=70x54 - cross multiply
x=70x54/45 - divide by 45
x=84
Can you guys please help me!!!
Answer:
It should be A
Step-by-step explanation:
I hope this helps
i’ll give a brainiest to the correct answer!!!!
really hard problem need help asap
Answer:
interior angle sum = (Number of sides x 180°) - 360°
interior angle sum = (6 x 180°) - 360° = 720°
∠CDE = (720° - 90° - 90°)/4 = 135°
Do you have good methods to calculate double digit multiplication quickly and mentally? Plzzz give me some good tips. WILL GIVE BRAINLIEST!!!!!
Answer:
You can use grid method.
That is easy.
Determine which translations would map Figure L onto Figure M. Help please !!!!!!! Will be marking Brianliest !!!!!!!!!!!!!!!
Answer:
8 points left and 7 points downStep-by-step explanation:
Get the difference of one point on M and corresponding point on L, and find the difference of coordinates.
Lets take top right points:
(7, 9) and (-1, 2)The difference:
-1 - 7 = -8 ⇒ 8 points left2 - 9 = -7 ⇒ 7 points down9) help me pls I have the ANSWERS I just need to show the WORK
How would you “find “x” in the diagram?
Answer: D
9514 1404 393
Explanation:
We have to assume the triangle is a right triangle.
In a 30°-60°-90° right triangle the side lengths have the ratio ...
short side : long side = 1 : √3
This lets you write the proportion ...
x/15 = 1/√3
Multiplying by 15 gives ...
x = 15/√3 . . . . . . matching choice D
__
There are other ways to get there. One of them is ...
x = 15·tan(30°) = 15/√3
please help i’m in a test rn. Consider the geometric sequence -7, 14, -28, .... Select all that apply.
A
The 8th term is –7(-2)
B
The common ratio is 2.
С
The 9th term is greater than the 10th term.
D
The 7th term is 4 times the 5th term.
E
The 5th term of the sequence is -112.
nsweres el dodeel s Step-by-step explanationen
I need help with question 3 please
Answer:
there's nothing there..
Step-by-step explanation:
Answer:
i need the question to answer though
Step-by-step explanation:
What is half of one inch?
Answer: Half of a half an inch is a quarter of an inch. Which is more, 24 inches or 1 yard? Hope this helps can u give me brainliest
Step-by-step explanation:
Answer:
the half of one inch is 1.27cm
14. Find x, y, and z in the figure.
900
2ནས་
15. Find x and y in the figure.
3
4yº (5r-20)
we know that
The sum of the internal angles in the triangle must be degrees
see the attached figure with letters to better understand the problem
Step
Find the measure of the angle x
In the triangle ABC
solve for x
therefore
the answer Part a) is
the measure of angle x is
Step
Find the measure of the angle z
we know that
--------> by supplementary angles
substitute the value of x
therefore
the answer Part b) is
the measure of angle z is
Step
Find the measure of the angle y
In the triangle ACD
solve for y
therefore
the answer Part c) is
the measure of angle y is
i need help here and if you dont help you will be flaged
Answer:
Answer below (dont flag people if they dont get it right, that's just messed up).
Step-by-step explanation:
The scale factor is 1.5
In ΔABC, the measure of ∠C=90°, the measure of ∠A=63°, and AB = 35 feet. Find the length of CA to the nearest tenth of a foot.
Answer: 15.9 feet
Step-by-step explanation:
Answer:
15.9
Step-by-step explanation:
WILL MARK BRAINLIEST TO THE FIRST PERSON
Answer:
5
Step-by-step explanation:
7^2 = (2(6)^1/2)^2 + BC^2 (Pyth. theorem)
BC = 5
Answer:
its supposed to be 6.08 but we can take of..08 so 6
Step-by-step explanation:
[tex]a + b = c \\ ( 2 \sqrt{6} ) {}^{2} + {b}^{2} = {7}^{2} \\ 2 \times 6 + {b}^{2} = 49 \\ {b}^{2} = 49 - 12 \\ {b }^{2} = 37 \\ \sqrt{b} {}^{2} = \sqrt{37} \\ b = 6.08 \: or \: 6[/tex]
Which of the following is not a Unit fraction.
Answer:
7/16
Step-by-step explanation:
unit fractions have 1 as their numerator.
Does anyone know this
Help please! im confused
Answer:
1/2
Step-by-step explanation:
area of larger square: 12 x 12 = 144
area of smaller square: 6√2 x 6√2 = 72
S/B = 72/144 = 1/2
Quadrilateral M' is the image of quadrilateral M under a dilation.
What is the center of the dilation?
Answer:
3
Hope that helps!
Step-by-step explanation:
9514 1404 393
Answer:
D
Step-by-step explanation:
Draw lines through corresponding vertices. Where those lines meet is the center of dilation. It is point D.
Part of a cross-country skier's path can be described with the vector function r = <2 + 6t 2 cos(t), (15 − t)(1 sin(t))> for 0 ≤ t ≤ 15 minutes, with x and y measured in meters.
The derivatives of these functions are given by x′(t) = 6 − 2sin(t) and y′(t) = −15cos(t) + tcos(t) − 1 + sin(t).
Find the slope of the path at time t = 4. Show the computations that lead to your answer.
Find the time when the skier's horizontal position is x = 60.
Find the acceleration vector of the skier when the skier's horizontal position is x = 60.
Find the speed of the skier when he is at his maximum height and find his speed in meters/min.
Find the total distance in meters that the skier travels from t = 0 to t = 15 minutes.
https://www.coursehero.com/tutors-problems/Calculus/16028189-Part-of-a-cross-country-skiers-path-can-be-described-with-the-vector/
Every row consists of 2,3 and 2 seats each. If there are 51 horizontal rows, and 13 seats are empty. How many passengers are on board?
Answer:
344
Step-by-step explanation:
If CA= 4x and CB= 8x-12 , what is the length of CA ?
Answer:
Step-by-step explanation:
CA and CB are both opposite equal 90 degree angles so are equal so we can say
8x-12=4x
4x-12=0
4x=12
x=3, since CA=4x
CA=4(3)=12
The difference between four times a number x and 5 is 24.
Answer:
4x - 5 = 24
x= 7.25
Step-by-step explanation:
4x - 5 = 24
4x= 24 + 5
x = 29 / 4 = 7.25
I hope im right!!
Maya has 200 songs on her cell phone. 48 songs are K-Pop. What percent of Maya's songs are K-Pop?
Answer: 24%
Step-by-step explanation:
It takes 32 minutes to bike 8 miles on the trail. How long would it take to
bike 2 miles? Help please!!!!
Answer:
8 minutes cause 32/8 = 4 then 4 x 2 = 8
Step-by-step explanation:
Answer this question to get marked at brainliest!!!!
Answer:
The most feasible answer would be the first option - 47
Step-by-step explanation:
This is true because if we look at the triangle it looks as if the sides have equal length, but if we look closely we will notice that the b side is angled more by a slight inch, compared to the other side, thus your answer should be 47 - the first option
12ax² - (9a² - 8b²) x + (2a² + 5ab + 2b²) = 0 solve for x
Answer:
[tex]\sqrt{\frac{(8b^2-9a^2)^2}{576a^2}-\frac{2b^2+5ab+2a^2}{12a} } -\frac{8b^2-9a^2}{24a} \\\\or\\-\sqrt{\frac{(8b^2-9a^2)^2}{576a^2}-\frac{2b^2+5ab+2a^2}{12a} } -\frac{8b^2-9a^2}{24a}[/tex]
Step-by-step explanation:
The quadratic formula for
[tex]ax^2+bx+c=0[/tex]
the solution is: (-b±√(b²-4ac))/(2a)
The solution is:
[tex]\sqrt{\frac{(8b^2-9a^2)^2}{576a^2}-\frac{2b^2+5ab+2a^2}{12a} } -\frac{8b^2-9a^2}{24a} \\\\or\\-\sqrt{\frac{(8b^2-9a^2)^2}{576a^2}-\frac{2b^2+5ab+2a^2}{12a} } -\frac{8b^2-9a^2}{24a}[/tex]
Which expressions are equivalent to (5g+3g+4)x2