about 7/10of the surface of the earth is covered with water. express this as an equivalent fraction with 100 as the denominator. the fraction with 100 as the denominators are known as per cent. 50/100 means 50 per cent. so what percentage of the earth's surface is covered with water? what percentage is covered with the land?

Answer: [tex]2\dfrac14\text{ hours}[/tex]

Step-by-step explanation:

Given:  It takes a robin [tex]1\dfrac12[/tex] hours to fly 45 miles.

[tex]1\dfrac12=\dfrac32[/tex]

Speed of robin= [tex]\dfrac{distance}{time}=\dfrac{45}{\dfrac32}[/tex]

[tex]\dfrac{45}{3}\times2= 15\times2= 30\text{ miles per hour}[/tex]

A robin can fly 10 miles per hour faster than a blue jay. It

Speed of Blue jay = Speed of robin - 10 miles per hour

= 30 miles per hour - 10 miles per hour

= 20 miles per hour

Time taken to cover 45 miles = [tex]\dfrac{45}{20}=\dfrac{9}{4}=2\dfrac14\text{ hours}[/tex]

Hence, it will take [tex]2\dfrac14\text{ hours}[/tex]  by a blue jay to fly that same distance.

Answer:

i would go for B

Step-by-step explanation:

Answer:

The question you posted was a bit confusing for me, but I'm assuming that you want the simplified ratio of the number of white marbles to the number of green marbles.

The answer would be 8:3.

Step-by-step explanation:

There are 8 white marbles and 3 green marbles, so you get 8:3. And since 8 and 3 are relatively prime, no simplifying is needed.

The answer is 8:3.

Answer:

Can you please be more specific what do I convert it to.

Step-by-step explanation:

Answer:

148°!

Step-by-step explanation:

By taking 180° (The degree of a striaght line) and subract by the other angle (32°) you'll get the answer!!

Answer:

simplify the expression.

Exact Form:

13/2

Decimal Form:

6.5

Mixed Number Form:

6 1/2

Step-by-step explanation:

plz give me brainlyest

Answer: 6 1/2

Step-by-step explanation:

-6 2/1 - (-2 8/1 ) + 3 3/2

-8 - (-10) + 4 1/2

-8 + 10 + 4 1/2

2 + 4 1/2

6 1/2

I didn't really understand some stuff but I think I did this right.. hope this helps!

Answer:

Step-by-step explanation:

On this one you would eliminate the ones that are negative or that go into a negative. Which would be A,C, and E. The rest that are left are zero or positive. B for example is a zero because eventually there will be no candle. D would be the same in some way, the students will eventually leave the school. Finally F, the temperature would be increasing.

Answer - B,D,F

Answer:

interior angle of a heptagon = 900 degrees

900 = 4x + (3x + 60)

840 = 7x

840/7 = 120

X = 120

120 X 4 = 480

120 X 3 = 360

480 + 360 + 60 = 900

4 angles = 120 degrees each

3 angles = 140 degrees each

Answer:

10/40=70/x

Step-by-step explanation:

mainly because the line is pointing at a

Answer:

hey lol

Step-by-step explanation:

it's the one on the right btw

Answer:

d. 6.4

Step-by-step explanation:

d=√(1−5)2+(−3−2)2

d=√(−4)2+(−5)2

d=√16+25

d=√4–√1

d=6.403124

Answer:

(x-6)(x-4)

or

x=-6   , x=4

Step-by-step explanation:

Answer:

(-2,5)

Step-by-step explanation:

Answer:

147.03 cm

Step-by-step explanation:

Answer:

147.03

Step-by-step explanation:

WxL=147.03

I think this is right ❤️

Answer:

Water i hope it is correct

Answer:

The Miami Dolphins had 3 touchdowns and 3 field goals.

Step-by-step explanation:

It is given that During their last game, the Miami Dolphins scored 6 times, for a total score of 30 points. They scored 7 points for each touchdown and 3 points for each field goal.

We need to write and solve the system of equations to find the total touchdowns and field goals scored.

Let x represents the number of touchdowns.

Let y be the number of field goals.

It is given that the Miami Dolphins scored 6 times

[tex]x+y=6[/tex]

[tex]x=6-y[/tex]....(1)

They scored 7 points for each touchdown and 3 points for each field goal.

The total score is 30 points:

[tex]7x+3y=30[/tex] ...(2)

Put the value of x from equation (1) into equation (2).

[tex]7( 6-y)+3y=30[/tex]

[tex]42-7y+3y=30[/tex]

[tex]-4y=30-42[/tex]

[tex]-4y=-12[/tex]

[tex]y=3[/tex]

Put y = 3 in equation 1.

[tex]x=6-3[/tex]

[tex]x=3[/tex]

Hence, the Miami Dolphins had 3 touchdowns and 3 field goals.

Answer: 40 minutes

Step-by-step explanation:

It takes 16 minutes for the first 2 stations to water their sections which means that the time taken per station is:

= 16/2

= 8 minutes per station

Ms. Reynolds has 5 stations.

Total time taken will therefore be:

= 8 * 5

= 40 minutes

Answer:

B) [tex]\displaystyle \frac{1}{16}[/tex]

Step-by-step explanation:

[tex]\displaystyle \frac{1}{16} = \frac{\frac{1}{8}}{2} \\ \\ OR \\ \\ \frac{1}{8} \div 2 = \frac{1}{8} \times \frac{1}{2} = \frac{1}{16}[/tex]

I am joyous to assist you at any time.

Answer:

B. y = 11x - 7 passes through the points (2 , 15) and (3 , 26)

Step-by-step explanation:

Answer:

either b or d

Step-by-step explanation:

Answer:

B) 12

Step-by-step explanation:

(9y + 7)° + (7y - 19)° = 180° (interior angles in the same side of transversal)

(9y + 7 + 7y - 19)° = 180°

(16y - 12)° = 180°

16y - 12 = 180

16y = 180 + 12

16y = 192

y = 192/16

y = 12

Answer:

9y+7=7y-19

7+19=7y-9y

26=-2y

26/-2=-2y/-2

y=-13

I hope this helps:

Answer:

A

Step-by-step explanation:

11 3/4 - 8 1/2 = 3 1/4

Answer:

4.95+0.10x=120

Step-by-step explanation:

Hope this helps

Answer:

3  4 if u wanna go father 1.5   2

Step-by-step explanation:

Answer:

24 is the lcd for 6 and 8..

Answer:

x = 17

Step-by-step explanation:

Since its a right triangle, you can use Pythagorean Theorem.

8² + 15² = x² (Given)

64 + 225 = x² (Simplify)

289 = x² (Add like terms)

17 = x (Square root both sides)

Answer:

The 2 numbers = 81 and 83

Step-by-step explanation:

As, one number = x

The other, because it's an even number and consecutive = x + 2

So the larger numbef here is x + 2

And they are saying 3 times x + 2 plus x = 330

So let's solve!

3 times x + 2 = 3(x+2) = 3x + 6

So we will add it to x = (3x + 6) +(x) = 4x + 6

So they are saying the sum of them will be 330

So, 4x + 6 = 330

4x = 330 - 6

4x = 324

x = 324/4

x = 81

So x is the first number = 81

And the second is x + 2 = 81 + 2 = 83

So the 2 numbers are 81, 83

Lets check!

3 times the bigger number = 83 x 3 = 249

We will add it to 81 and we will get 330

So, 249 + 81 = 330

So the answer is right

The number of red cells are 4 and the number of blue cells are 8. Then the correct option is C.

A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.

In the grids, there are 12 square box.

Let R be the red and B be the blue.

R + B = 12   ...1

R / B = 1/2  ...2

By solving equation 1 and 2, we have

R + 2R = 12

      3R = 12

        R = 4

Then  

4 + B = 12

     B = 8

Then the correct option is C.

More about the ratio and the proportion link is given below.

https://brainly.com/question/14335762

#SPJ2

Answer:

You can try asking for extra credit assignments, and just become a try hard on whatever assignments you have left. There's not much other thing besides asking for extra credit and trying your best on the assignments you have left

Answer:

a7 b8

Step-by-step explanation: