Answer:
Area of river = depth × width
=3×40
[tex] = 120 {m}^{2} [/tex]
amount of water that falls into the sea ⇒
Area of river × flow rate
[tex]120 {m}^{2} \times 2 \: \frac{km}{hr} [/tex]
[tex]120 \times \frac{2 \times 1000 {m}^{2} }{(60)min} [/tex]
[tex]4000 \: \frac{ {m}^{3} }{min} [/tex]
:. [tex] {4000m}^{3} [/tex] of water falls into the sea per min.
So, [tex] {4000m}^{3} [/tex]
= 4000 × 1000 litres
= 4000000 litres
So, in 1 minute, water will fall into the sea is 4000000 litres.
Step-by-step explanation:
Hope it is helpful....
Zara and John are hiking on a trail that is 2 miles long. There are signs to mark each eighth of a mile along the trail draw a number to show the length of the trail. Then mark the number line off to show where each sigh is.
Answer:
Kindly check attached picture
Step-by-step explanation:
The number line described in the question is illustrated on the picture below. The length of the number line spanning 2 miles and the distance between each successive tick marks being 1/8 miles. The tick marks shows where each sign is.
Answer:
Step-by-step explanation:
hii please help i’ll give brainliest!!
Help please help I will reward 900 points and brainly!
Answer:
#171 -[tex]\frac{39}{4}[/tex]·a - [tex]\frac{53}{5}[/tex]
Step-by-step explanation:
after distributing:
-10a - 21/2 + 1/4a - 1/10 =
-39a/4 + (-105/10 - 1/10) =
-39a/4 - 106/10
Question 9: What does x equal?
26
Step-by-step explanation:
3x + 2x = 50 = 180
5x = 130
x = 26
Please help find area and perimeter of compost ore figure... 70 points and BRAINLY if I figure out how to give it:)
Answer:
Look at the other question i answered it for you
Step-by-step explanation:
Use the Pythagorean theorem to find y.
Answer:
y = 18.4
Step-by-step explanation:
[tex]12^{2} + 14^{2} = y^{2}[/tex]
144 + 196 = [tex]y^{2}[/tex]
340 = [tex]y^{2}[/tex]
y = [tex]\sqrt{340}[/tex]
y = 18.4 (to 3 significant figures)
plsss help i’ll give brainliest if you give a correct answer
Answer:
48 drops of red food coloring
Step-by-step explanation:
32/8 = 4
SO she uses 4x as much yellow food coloring meaning you need to use 4x as much red food coloring.
4 x 12 = 48 so she needs to add 48 drops of red food coloring
Answer:
Mya will need 48 drops of red food coloring
PLS SHOW WORK! WILL GIVE BRAINLIEST!
A bike tire has a diameter of 35 inches. If the tire rotates 10 revolutions, how far did the bike travel?
Answer:
Distance travelled = 91.61 feet
Step-by-step explanation:
Given the following data;
Diameter, d = 35 inches
Number of revolutions = 10 Rev
To find the distance travelled by the bike;
First of all, we would determine the circumference of the bike's tire, which is circular in shape.
Circumference of circle = πd
Circumference of circle = 35π
Next, we multiply by the number of revolutions to get the distance travelled.
Distance travelled = 35π * 10
Distance travelled = 350π inches
But pie, π = 3.142
Distance travelled = 350 * 3.142
Distance travelled = 1099.7 inches.
In feet;
1 inches = 0.0833 feet
1099.7 inches = x feet
Cross-multiplying, we have;
x feet = 1099.7 * 0.0833
x feet = 91.61 feet
Distance travelled = 91.61 feet
Help me I’m lost I’ve been stuck on this the pas 20 min anyone help
Answer:
I'm sorry but I can't see it lol.. maybe try taking a clear pic ya know.
Consider the figure shown below, find the value of
g
Given:
A figure of a triangle.
To find:
The value of g.
Solution:
Law of Cosines:
[tex]a^2=b^2+c^2-2bccosA[/tex]
Using the Law of Cosines for the given triangle, we get
[tex]g^2=8^2+7^2-2(8)(7)cos(65^\circ)[/tex]
[tex]g^2=64+49-112(0.4226)[/tex]
[tex]g^2=113-47.3312[/tex]
[tex]g^2=65.6688[/tex]
Taking square root on both sides.
[tex]g=\sqrt{65.6688}[/tex]
[tex]g=8.10363[/tex]
[tex]g\approx 8.10[/tex]
Therefore, the value of g is about 8.10 units.
Help pls
Help pls
Help pls
Answer i cant read it..
Step-by-step explanation:
Nate scored a 990 on his first autempton
the SAT and a 1140 on his second attempt
Percent of change classify as a percent increase or decrease
Answer:
It was a percentage increase of 15.15%
Step-by-step explanation:
1140 is greater than 990, so it is an increase in scores
Percentage increase = (change in score / first score) x 100
change in score = second score - first score
1140 - 990 = 150
(150 / 990) x 100 = 15.15%
A. Write each of the following decimals using digits.
21. Twenty-six hundredths
22. Nine tenths
23. Thirty hundredths
[tex]pls \: answer \: [/tex]
Answer:
21.0.26
22. 0.9
23.0.30
the weight of 65 books is 13 kg what is the weight of 80 Such books
What is the volume, in cubic feet, of this cylinder?
10 ft
20 ft
rename 11/5 as a mixed answer
Answer:
[tex]2\frac{1}{5}[/tex]
Step-by-step explanation:
11 goes into 5 two times, but we are left with a remainder of 1.
So, we can say that the mixed number would be [tex]2\frac{1}{5}[/tex].
Can someone pls help
Answer:
7
Step-by-step explanation:
HELLLLLLLLLLLLLLLLLPPPPPPPPPPPP 10 POINTS anD BRAINIESt
Answer:
35.859375?
Step-by-step explanation: ;-;
If a car has tires with a diameter of 28 inches and is traveling at 55 mph, how fast are its tires spinning, in rpm^ prime s (revolutions per minute)? [There are 63,360 inches in 1 mile) Round your final answer to 2 decimal places .
Answer:
The tires are spinning at 660.49 revolutions per minute.
Step-by-step explanation:
The speed of the tires (v) is the same that the speed of the car, so to find the angular velocity of the tires we need to use the equation:
[tex] \omega = \frac{v}{r} [/tex]
Where:
r: is the radius of the tires = d/2 = 28 inches/2 = 14 inches
[tex]\omega = \frac{55 mph}{14 inches*\frac{1 mile}{63360 inches}} = 2.49 \cdot 10^{5} \frac{rad}{h}*\frac{1 h}{60 min}*\frac{1 rev}{2\pi rad} = 660.49 rpm[/tex]
Therefore, the tires are spinning at 660.49 revolutions per minute.
I hope it helps you!
Factor the expression using the GCF. 24-9
The equation of an ellipse is x2/16 + y2/36= 1 , and the ellipse is centered at the origin. Find the vertices of the major axis and determine whether the ellipse has a horizontal or vertical major axis.
Answer:
steps below
Step-by-step explanation:
x²/16 + y²/36= 1
x²/4² + y²/6²= 1
Eclipse center ed origin: standard formula
²/radius of minor axis + y²/ radius of major axis =1
Vertices of major axis: (6 , 0) and (-6 , 0) ... horizontal
vertices of minor axis: (0 , 2) and (0 , -2) ... vertical
Simplify the expression. Explain each step.
5.3 + (W + 1.2)
(3,-2);slope 1/3 what is the answer?
Answer:
y = [tex]\frac{1}{3}[/tex] x - 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = [tex]\frac{1}{3}[/tex] , then
y = [tex]\frac{1}{3}[/tex] x + c ← is the partial equation
To find c substitute (3, - 2) into the partial equation
- 2 = 1 + c ⇒ c = - 2 - 1 = - 3
y = [tex]\frac{1}{3}[/tex] x - 3 ← equation of line
x + y = 16
5x - 4y = 12
Answer:
x = 8.44, y = 7.56
Step-by-step explanation:
x + y = 16 (equation 1)
5x - 4y = 12 (equation 2)
(x + y = 16)× 5
(5x - 4y = 12) × 1
9y/9 = 68/9
y = 7.56
Substitute the value of x in equation 1
x + 7.56 = 16
x = 16 - 7.56
x = 8.44
Therefore, x = 8.44, y = 7.56
Answer:
x = 76 / 9 [ 8 (4 / 9) = [tex]8.\bar{4}[/tex] ]
y = 68 / 9 [ 7 (5 / 9) = [tex]7.\bar{5}[/tex] ]
__________________
Step-by-step explanation:
There are several methods that can be used to solve systems but in this situation, it is generally easier to cancel out a variable by adding the system of equations together.
This is how it's done:
x + y = 16
5x – 4y = 12
__________
4 ( x + y = 16 )
+ 5x – 4y = 12
[Multiplying the entire equation by 4 to cancel out the y because 4y – 4y = 0]
___________
4x + 4y = 64
+ 5x – 4y = 12
__________
9x = 76
÷9 ÷9
[Dividing by the coefficient of 9x in x to get x]
______
x = 76 / 9.
_______
Now that we have the x variable, you can simply substitute that quantity into x + y = 16 to solve for y.
So:
x + y = 16
[substituting the value of x into the equation]
(76 / 9) + y = 16
[Creating a common denominator that
can be canceled out]
(76 / 9) + (9y / 9) = (144 / 9)
76 + 9y = 144
[Subtracting 76 from both sides to isolate 9y]
–76 –76
__________
9y = 68
÷9 ÷9
[Dividing both sides by the coefficient of 9y in y to get y]
_________
y = 68 / 9
_________
We can also verify that these variables have the correct value because:
x + y = 16
5x – 4y = 12
→
(76 / 9) + (68 / 9) = 16
5(76 / 9) – 4(68 / 9) = 12
__________________
(76 + 68 / 9) = 16
(380 / 9) – (272 / 9) = 12
___________________
144 / 9 = 16
(380 – 272 / 9) = 12
__________________
144 / 9 × 9 = 16 × 9
108 / 9 = 12
__________________
144 = 144 ✓
108 / 9 × 9 = 12 × 9
_________________
144 = 144 ✓
108 = 108 ✓
please help asap!! it’s due in about 20 minutes
Answer:
GH = 20
Step-by-step explanation:
Here, we want to get the numerical length of GH
from what we have, G is on FH
What this could mean is that;
FG + GH = FH
x + 5x = 4x + 8
6x = 4x + 8
6x-4x = 8
2x = 8
x = 8/2
x =4
Recall;
GH = 5x
GH = 5(4)
GH = 20
Draw triangle ABC so that
AB = 6 cm. A = 70°. and B = 50°
And then calculate the measure of angle ABC
Answer:
abc=60
bc 180-70-50=60
Rewrite the function f (x) = 3 (x - 1)^2 – 2 in the form f(x) = ax^2+bx+c
Answer: 3x^2-6x+1
Step-by-step explanation:
In this question, you just have to foil out the expression and multiply things out to get the results. Rewrite it if you need so you can caluate it like what I did in this picture.
Isabella has 63 hair bows. Isabella's sister has h more hair bows than Isabella. Choose the expression that shows how many hair bows Isabella's sister has.
Answer:
(h+63)
Step-by-step explanation:
Given that,
Isabella has 63 hair bows.
Isabella's sister has h more hair bows than Isabella. It means,
Isabella's sister = h+63
h and 63 are added as Isabella's sister has h more hair bows than Isabella.
Hence, the expression would be (h+63).
Hand Sanitizer question
Answer:
the first one
Step-by-step explanation:
Dr James ordered 56 pizzas for the teachers. Of the pizzas ordered, 2/7 of them were pepperoni, 19 were cheese , and the rest were veggie pizzas. How many of the slices were veggie .
Answer:
21
Step-by-step explanation:
Dr James ordered 56 pizzas for the teachers.
Of the pizzas ordered, 2/7 of them were pepperoni,
Number that were pepperoni = 2/7 × 56 pizzas
= 16 pizzas were pepperoni
19 were cheese , and the rest were veggie pizzas.
How many of the slices were veggie?
The number of veggie slices is calculated as:
Veggie slices = Total number of pizzas - ( Number of Pepperoni + Number of Cheese)
= 56 - ( 16 + 19)
= 56 - 35
= 21
The number of veggies is 21