One pump can fill a tank of water in 5 hours. A second tank can fill the same tank in 4 hours. If both pumps are used together, how long will it take to fill the tank?
4/5 hours
20/9 hours
9/20 hours
5/4 hours

Answers

Answer 1

Answer:

4/5 hours

Step-by-step explanation:

Answer 2

Answer:

20/9 hours

Step-by-step explanation:

I got it right on the quiz


Related Questions

answer easy question quick ​

Answers

Answer:

Step-by-step explanation:

a) 9.80- 98/10

b) 7.3- 73/10

a) 7/100- 0.07

b) 82/10- 8.2

Hope this helps

Fraction:

a) 98/100

b) 73/10

Decimal:

a) 0.07

b) 8.2

ill give brainliest

Write and solve the equation for the following situation:

Angles 1 and 2 are complementary. The measure of angle 1 is 16° larger than the measure of angle 2.

A. x + 16 = 90 x = 74

B. x + (x - 16) = 90 x = 53

C. 2x + 16 = 90 x = 37

D. x + 16 = 180 x = 164​

Answers

C. For sure. Hope it helps

Find the value of x. Round to the
nearest tenth.
X
37
6
X=
Enter

Answers

Answer:

x ≈ 4.5

Steps:

tan(37°) = 0.75..

tan(37°) = x/6

x/6 = 0.75..

x = 0.75.. × 6

x = 4.52.. ≈ 4.5

Answer:

The answer is 4.5

Step-by-step explanation:

x =4.5

Fill in 4.5

Hey I'm Chloe Can you Help Me I will give Brainlest, Thank you :)
Pythagoras lived over 2500 years ago. What is his theorem and why do we still use it today?

Answers

Answer:

The Pythagorean Theorem is helpful for two-dimensional navigation.   You can use it along with two lengths to calculate the shortest path. The lengths north and west will be the triangle's two wings, and the diagonal will be the shortest line separating them.  The same principles can be used for air navigation. He is best known in the modern day for the Pythagorean Theorem, a mathematical formula which states that the square of the hypotenuse of a right triangle is equal to the sum of the squares on the other two sides.

- Hope this helps! :)

Find the values of x and y that make the quadrilateral a parallelogram.

Answers

Answer:

x= 114, y= 66

Step-by-step explanation:

Opposite angles of a parallelogram are equal

Hey guys I really need help please help me

Answers

The answer could be 111? If you need to get 180 but I can’t remember exactly if you need to get to 180

Answer:

I believe x would be 30

Step-by-step explanation: When you add 20+10 it will give you the other triangle side, which is  30, and then 22+11 will be 33. And for the final side 24+12 will give you 36

plssss help

answer it plssssssssss​

Answers

k= 28/5
yeah yeah yeah

2/5+3/6 GETS BRAINLIEST​

Answers

Answer:

27/30

Step-by-step explanation:

yepyffghhhhgghjj

Answer:

9/10 or 0.9

Step-by-step explanation:

When adding fractions, you look at each of them as an equal number, or a whole.

25+36

91

So, now all we have to do is convert it to it's closest form. (In tenths, since we are adding tenths.)

90

And it would be 9/10, or 0.9

Hope this helps!

the bakers at a bakery can make 160 bagels in 4 hours. how many bagels can they bake in 6 hours? what is the rate per hour

Answers

Answer: they can make 240 bagels in 6 hours and the rate per hour is 40

Step-by-step explanation:

One house key weighs 1/2
ounce.
Which model represents the total weight in ounces of 5 house keys?

Answers

Answer: 5/2

Step-by-step explanation:

If 1 house key weighs 1/2 ounce,

Then do 5×1/2 which is 5/2

or [tex]\frac{1key}{5key} \frac{1/2ounce}{?}[/tex]

With this cross multiply and get 1x=5/2

giving a total of 5/2 again when divided by 1.

can anyone answer this? thanks :)

Answers

Answer:

39°

Step-by-step explanation:

The sum of AXE, AXC and CXF will be 180 because they together span a straight line (EF).

So: y + 90 + y - 12 = 180, which is an equation you can solve by simplifying it:

y + 90 + y - 12 = 180

2y + 78 = 180

y + 39 = 90

y = 90 - 39 = 51

So AXE = 51

AXC = 90

CXF = 51-12 = 39 (the answer)

Check: 51+90+39 = 180

I need help with (G)

Answers

Answer:

[tex]2^{5}[/tex]

Step-by-step explanation:

pls helpppppp !!
tysmmmm <33

Answers

Answer:

180

Step-by-step explanation:

From basic rules of a triangle we know that the interior angles of a triangle have to add up to equal 180°

But here is a formula for future references for finding the sum of the interior angles

interior angle sum = (n-2)180

where n = number of sides

and here is an example:

a triangle has 3 sides so we plug in 3 for n

(3-2)180

3-2=1

1*180 = 180

so the interior angles add up to equal 180

PLEASE ANSWER ALL

What is the equation of the axis of symmetry of the function?
What are the coordinates of the vertex of the function?
What are the coordinates of the x¬-intercepts of the function?
What are the coordinates of the y-intercept of the function?

Answers

Step-by-step explanation:

The axis of symmetry: is the line that makes the parabola split in exactly half and lines up with the vertex. For that parabola x=1 is the line of symetry.

The vertex is where the minimum of the graph is, on this graph you can eyeball it to be (1,-9)

The x-intercept is where y is 0 so that's where the lines intersex with the x-axis. (-2,0) and (4,0)

The y-intercept of the function is where x is 0 and where the parabola intersects with the y-axis. On this graph it would be (0,-8)

Hope that helps :)

Find the exact value of sin 105º.

Answers

Answer:

sin 105 = sin (45 + 60) = sin 45 cos 60 + cos 45 sin 60, or

                                    = (1 / √2)(1 / 2)        + (1 / √2)(√3 / 2)

                                         1 + √3

                                    = -------------

                                           2√2

Step-by-step explanation:

value is 1
(according to my calculator)

Turn the fraction 5/8 in to a percent.

Answers

Answer:

62.5%

Step-by-step explanation:

Answer:

62.5%

Explanation:

Divide 100 by 8 to get 12.5

Multiply 12.5 by 5

Equals 62.5


For this data set, the best measure of center is the
, and its value is

Answers

Answer:

median, 60

Step-by-step explanation:

Answer:

it is 60 my friend.

Step-by-step explanation:

The area of the shaded sector is 5 pi square meters. What is the area of the entire circle? Express your answer in terms of Pi.

A circle. The shaded section has an angle measure of 100 degrees.

Recall that StartFraction Area of sector over area of circle EndFraction = StartFraction n degrees over 360 degrees EndFraction.

A) 12 pi
B) 14 pi
C) 18 pi
D) 20 pi

Answers

Answer:

C - 18 pi

Step-by-step explanation:

edge

Answer:

5/18

108

A sector has an area of 30π in.2. The radii containing the sector form an angle of 100°. What is the area of the circle?

The ratio of the angle of the sector to the entire circle is

✔ 5/18

.

Area of the sector = StartFraction n degrees over 360 degrees EndFraction (pi) (r squared). 30 pi = StartFraction 100 degrees over 360 degrees EndFraction (pi) (r squared). (StartFraction 18 over 5 EndFraction) 30 pi = (pi) r squared.

The area of the entire circle is

✔ 108

Pi in.2

Piscine is replacing the paving stones around her inground pool. Her pool is 10 cm by 5 cm, and is surrounded by a 1.5m border of paving stones.
a) How many square metres of paving stones will she need in total?
b) If each paving stone is 25 cm by 40 cm, in theory, how many paving stones will she need?
c) Will your answer in part b) actually be enough? Try fitting the stones in the space to see whether Piscine can complete the border with exactly that number of stones, or whether there will be waste, requiring some extras.

Answers

A=75
B=1,000
C= no because the number is small

Find the missing side length of
the triangle.

Answers

Answer:

50 units

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Trigonometry

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

a is a leg b is another leg c is the hypotenuse

Step-by-step explanation:

Step 1: Define

a = 48

b = 14

c = ?

Step 2: Solve for c

Substitute in variables [Pythagorean Theorem]:                                            48² + 14² = c²Evaluate exponents:                                                                                         2304 + 196 = c²Add:                                                                                                                   2500 = c²[Equality Property] Square root both sides:                                                    50 = cRewrite:                                                                                                             c = 50

pls pls pls, I beg you to answer this question only if you know the correct answer please please please I beg you

Answers

Answer:

Median is the middle line of the box, Lower quartile is the number of the lower end of the box, Upper quartile is the line at the larger end of the box, Maximum is the largest number in the box plot (end of right whisker), Minimum is the lowest number (end of left whisker).

Step-by-step explanation:

32.

Median: 88

Maximum (largest number): 102

Minimum (lowest number): 38

Interquartile range:

96 - 72 = 24

b.

25 % higher

75 % lower?

c.

You can see the range is more towards the right of the box meaning they have higher scores, and that the median or middle is a higher number so it means that most of the students understood and did well on the test.

???.

First quartile: 16

Second: 19

Third: 20

Range: 4

34.  Since they are already in least to greatest order, all we have to do is graph it!

85 - 99 is 2

100 - 114 is 1

115 - 129 is 5

130 - 144 is 6

what is 7 8/9 written as a decimal

Answers

The number 7 8/9 as a decimal is 7.89

I will give 50 points for the answer

Answers

Answer:

nosee

Step-by-step explanation:

The student forgot about the tenth and hundredth place value.
17.5 and 17.05 are different
Make them same place value
17.50 and 17.05
.50 is greater than .05
The correct answer would be 17.5>17.05


PLS PLS HELP PLS PLS PLS HELP PLS HELP PLS BOTH OF THEM PLS

Answers

Answer:

16. Right isosceles

17. D

Step-by-step explanation:

The triangle has a right angle this makes it a right trangle. Also all parallelograms are not squares, all rectangles aren't squares and all parallelograms aren't rhombuses.

16. right isosceles

17. C: all rectangles are squares

A running track consists of two parallel lines that are connected at each end but the curved boundary of a semicircle. The parallel lines are 30 meters long and 7 meters apart. Fine the area inside the running track.

Answers

Answer:

The area inside the running track is 248.5 m².

Step-by-step explanation:

The area inside the running track is given by the sum of the area of a rectangle and the area of a semicircle:

[tex] A_{t} = A_{r} + 2A_{c} [/tex]                

[tex] A_{t} = x*(2r) + 2*(\frac{\pi r^{2}}{2}) [/tex]      

Where:

x: is one side of the rectangle = 30 m            

r: is the radius = half of the other side of the rectangle = 7/2 m = 3.5 m

Hence, the total area is:

[tex] A_{t} = 30*7 + \pi (3.5)^{2} = 248.5 m^{2} [/tex]                            

Therefore, the area inside the running track is 248.5 m².

I hope it helps you!                                                    

help I will give brainiest if you do the last ones​

Answers

Can A can hold more than can B

Write (2/3)^2 in expanded form,​

Answers

Answer:

4/9, or 0.4∞

but 0.4∞ has a repeating decimal, so the expanded form is ∞ also

What is the greatest number of obtuse angles that a triangle can have?

Answers

Answer:

1

Step-by-step explanation:

1 point
Ravi is shooting arrows at a target. The experimental probability that one
will hit a bull's eye is 12. If Ravi shoots 20 arrows, how many times can he
expect to hit a bull's eye?
O 10
O 20

Answers

Answer:

20

Step-by-step explanation:

The answer is 20 you’re welcome

Jaelynn rolled a number cube that has sides labeled 1 to 6. What is the probability that she rolled a 2 or a 4?

Answers

6 possibilities

Rolling a 2 is 1/6
Rolling a 4 is 1/6

2 or 4 is 1/6 + 1/6
2/6
1/3 or 33.3% chance
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