Answer:
-37/5= y
x=11/5
Step-by-step explanation:
4x-3y=31
-3y=-4x+31 regroup it to match the other
-2 y=(2x-3)(-2) multiply by -2 to get -4x
-3y=-4x+31
-2y=-4x+6 adding
-5y=37 divide
-37/5= y
4x-3(-37/5)=31
x=11/5
Please explain i don’t get it
Hi guys can you answer my math question 1 2 and 3
Answer:
1. a) 7
b) 8
c)7
d) 6
2. a) -2 < 4
b) -3 > -5
c) -1°C
3. 39.95
Step-by-step explanation:
This box is packed with cubes that measure one cubic foot.
Enter the volume of the box in cubic feet.
Answer:
81
Step-by-step explanation:
HELPPP!!!
find the value of each expression then answer the questions.
The perimeter of an isosceles triangle is 53 meters. If the base of the triangle is seven less than two times the congruent sides' lengths, find the dimensions of the triangle. (I also need an equation and work that is shown how you got the answer.)
Helpppppppppppppppppppppppppp hey
Answer:
y=-4/7x+5
Step-by-step explanation:
4x+7y=35
-4x -4x
7y=-4x+35
Divide all by 7
y=-4/7x+5
Natalie budgets $146 for yoga training. She buys a yoga mat for $10 and pays $9 per yoga class. Which inequality represents the number of classes, c, that Natalie can take and stay within her budget?
A. 146 ≤ 9c + 10
B. 146 ≥ 9c + 10
C. 146 ≤ 10c + 9
D. 146 ≥ 10c + 9
Help please many points
Answer:
The first thing we must do for this case is to define variables:
d = number of days
We then have the following inequality that represents the problem:
9d + 10 <= 146
Answer:
An inequality that represents the number of days, on which Natalie can take classes is:
9d + 10 <= 146
Step-by-step explanation:
Answer:
B. 146 ≥ 9c + 10
Marco has a balance of -$19 in his checking account. He deposits $368. The next day he buys a video game that costs $47 using his debit card. What is his new balance?
Answer:
[tex]New\ Balance = \$302[/tex]
Step-by-step explanation:
Given
[tex]Balance = -\$19[/tex]
[tex]Deposit = \$368[/tex]
[tex]Purchase = \$47[/tex]
Required
Determine the new balance
The new balance is calculated as:
[tex]New\ Balance = Balance + Deposit - Purchase[/tex]
Purchase is subtracted because it represents debit.
So, we have:
[tex]New\ Balance = -\$19 + \$368 - \$47[/tex]
[tex]New\ Balance = \$302[/tex]
Hence, the new balance is $302
round your answer to the nearest hundreth
Answer:
201.06 sq. ft.
Step-by-step explanation:
Area of a circle is found by using the equation:
[tex]A = \pi r^{2}[/tex]
Radius = 1/2 (diameter) = 1/2 (16) = 8
So plug in:
[tex]A = \pi (8)^{2}[/tex]
A = 64[tex]\pi[/tex]
A = 201.06193
Rounded A= 201. 06
Raj, Amit, Parul, and Lara were asked to find the volume of the following cones.
Raj
Amit
Parul
Lara
A cone with diameter of 5 centimeters and height of 3 centimeters. A cone with a radius of 3 centimeters and height of 4 centimeters. A cone with a height of 7 centimeters and Base = 4 pi centimeters squared. A cone with a height of 6 centimeters and Base = 3 pi centimeters squared.
Whose cone has a volume closest to 9 pi centimeters cubed?
Raj
Amit
Parul
Lara
Answer:
Option C is correct Parul is closest to 9 pi centimeters cubed!!!
Have a Great Day!!!!
Answer:
I would believe it would be the answer C parul
sorry if im wrong
A two-sample t-test for a difference in means was conducted to investigate whether there is a statistically significant difference in the average amount of fat found in low-fat yogurt and the average amount of fat found in nonfat yogurt. With all conditions for inference met, the test produced a test statistic of t=2.201 and a p-value of 0.027.
Based on the p-value and a significance level of α=0.05, which of the following is the correct conclusion?
Answer:
Step-by-step explanation:
its B darling
Solve the following system:
5x - 2y=11
2x+2y=10
X=
Y=
Answer:
x = 3, y =2? 5×3 - 2×2
Step-by-step explanation:
im not sure
Determine whether the quadratic function shown below has a minimum or maximum, then determine the minimum or maximum value of the function f(x)=-3(x-4)(x-6)
The maximum value of the quadratic function f(x)=-3(x-4)(x-6) is -72.
Given data:
To determine whether the quadratic function f(x) = -3(x-4)(x-6) has a minimum or maximum, analyze the leading coefficient, which is -3.
Since the leading coefficient is negative (-3), the quadratic function opens downward, indicating that it has a maximum point.
To find the minimum or maximum value of the function, we can look at the vertex of the parabola. The x-coordinate of the vertex can be found using the formula x = -b / (2a), where a and b are the coefficients of the quadratic function in the form [tex]ax^2 + bx + c[/tex].
In our case, the quadratic function is f(x) = -3(x-4)(x-6), so the coefficient of [tex]x^2[/tex] is -3, and there is no linear term (b = 0).
Using the formula x = -b / (2a):
x = -0 / (2*(-3))
x = 0
Substituting this x-coordinate back into the quadratic function, find the corresponding y-coordinate (minimum or maximum value).
f(0) = -3(0-4)(0-6)
f(0) = -3(-4)(-6)
f(0) = -3(24)
f(0) = -72
Hence, the quadratic function f(x) = -3(x-4)(x-6) has a maximum value of -72.
To learn more about quadratic equations, refer:
https://brainly.com/question/25652857
#SPJ4
please help!! :) .....
Answer:
*helps*
Step-by-step explanation:
done (:P)
PLEASE HELP DUE TODAY!! WILL GIVE BRAINLINESS!!
Explain how to use the unit-factor method to convert 120 pounds to kilograms.
Hint: 1 kilogram=2.2 pounds
To write the unit factors, use the / symbol, like this: 1 gallon/3.79 liters.
The converted units is 120 pounds = 54.5 kilogram
How to convert the units?As a general rule, we have:
1 kilogram=2.2 pounds
Multiply both sides by 120
120 * 1 kilogram=2.2 pounds * 120
Divide both sides by 2.2
120/2.2 * 1 kilogram=2.2 pounds * 120/2.2
Evaluate the products
54.5 kilogram= 120 pounds
Rewrite as:
120 pounds = 54.5 kilogram
Hence, the converted units is 120 pounds = 54.5 kilogram
Read more about metric units at:
https://brainly.com/question/2555957
#SPJ1
Please help!!!!im struggling!!!!!!!!!
Answer:
the answer is the second one
Step-by-step explanation:
have a great day :)
ill mark brainlist plss help
0.04
Step-by-step explanation:
here is the answer kid
what's the value of given expression
[tex] \sqrt{1 \times 1} [/tex]
Answer:
1
Step-by-step explanation:
1st step : multiple the number inside square root
1 x 1 =1
so then think about which time 1 will give you 1
that will 1
Answer:
√{1×1}=√1=±1 is your answer
43x28 what is the whole problem to solve it
Answer:
Step-by-step explanation:
43x28=1204
Answer:
1,204
Step-by-step explanation:
43(28) = 1,204
help!!!!!!!!!!!!!!!!!!!
The volume of this cylinder is approximately ___ cubic cm.
Use ≈ 3.14. Do not round your answer.
Answer:
Step-by-step explanation:
area of a cylinder = (area of a circle) times the (height)
area of a cylinder = π radius² × height
radius = 57 cm height = 40 cm
area of a cylinder = π 57² cm² × 40 cm
= π (57² × 40) cm³
= π ( 57 × 57 × 40) cm³ 57x57 = 399 + 2850 = 3249
= π (3249 × 40) cm³
= 129969π cm³ π = 3.14
= 129969 × 3.14 cm³
= 408,074.4 cm³ < ----------------- Final Answer
simple question: what is 2+2
Answer:
4
Step-by-step explanation:
Evaluate the expression when c = 5 and d = 8
d + 6c
Answer:
38
Step-by-step explanation:
6 times 5 =30
d=8
30+8-38
The width of a rectangle is "w" inches long. If the length is 4
inches more than the width, which represents the area of
the rectangle?( the ^ symbol means exponent)
A)2w^2+4w
B)w^2+4w
C)2w^2+4
D)w^2+4
Answer:
B
Step-by-step explanation:
Area of rectangle=length(l)×width(w)
In this case,length= w+4
so Area=(w+4)×w
Therefore Area=w^2+4w
A highway is going to be built around a city. The highway will be in the shape of a perfect circle, and its total length will be 251.2 kilometers. A nearby bus stop will have a billboard with a map of the bus routes along the highway. The map is drawn to a scale of 1:7,500. Calculate the area that is surrounded by the highway on the billboard map. Round the answer to the nearest hundredth of a square meter.
Answer:
The area that is surrounded by the highway on the billboard is approximately 89.34 square meters
Step-by-step explanation:
The given parameters are;
The length of the circle shaped highway = 251.2 km
The scale of the map of the bus routes along the highway = 1:7,500
The circumference of a circle, C = 2·π·r = The length of the perimeter of the circle
Therefore, we have;
The circumference of the highway = The length of the circle shaped highway = 251.2 km
The circumference of the highway, C = 251.2 km = 2·π·r
The radius of the circular highway path, r = 251.2 km/(2·π) ≈ 39.994217 km
The area of a circle, A = π·r².
The area of the highway = π·r² = π × (39.994217 km)² ≈ 5,025.09492434 km.²
Given that the scale of the map = 1:7,500. we have;
The scale of the area = (1:7,500)² = (1:56,250,000)
The size of the drawing, 5,025.09492434 km.²/(56,250,000) = 0.00008933502 km² = 89.33502 m.²
Therefore, the area that is surrounded by the highway on the billboard, rounded to the nearest hundredth of a square meter ≈ 89.34 m.²
How many integer values for 'a' satisfy the inequality?
Answer: the image is blurry
Answer:
im doing this problem it kinda hard
Step-by-step explanation:
If a tire has a diameter of 20 inches, how far will the tire travel in one full rotation?
A) 20.0 inches
B) 62.8 inches
C) 125.6 inches
D) 314.0 inches
Answer:
B.62.8 inches
Step-by-step explanation:
just multiply the diameter by pi to get the circumference
20 x 3.14= 62.8
4. Of 100 students surveyed, 32
like green beans, 40 like carrots,
20 like both green beans and
carrots, and 8 do not like green
beans or carrots. Based on
these results, how many of the
next 40 students surveyed would
expect to like carrots only?
Answer:
16 students
Step-by-step explanation:
40 kids like only carrots and 40% of a hundred is 40%, so out of the 40 students that will be surveyed only 40% will like only carrots. 40% of 40 is 16
What is the slope of OA?
Answer:
D) b/a
From the given figure, O = (0, 0) and A = (a, b)
Slope of OA = (y2 - y1) / (x2 - x1)
Here x1 = 0, y1 = 0, x2 = a and y2 = b.
Slope of OA = (b - 0)/(a - 0)
Slope of OA = b/a
Answer: D) b/a
i need help this is dude tomorrow
Answer:
B. y=-x+2
Step-by-step explanation: If you plot each equations on desmos graphing calculator you can look for those points and see if is on there.
Alicia receives $\frac25$ of a $\$120$ gift, and Jason receives $\frac13$ of the gift. What is the ratio of Jason's share to Alicia's share? Express your answer as a common fraction.