A robin can fly 10 miles per hour faster than a blue jay. It takes a robin 1 1/2 hours to fly 45 miles. How many hours will it take a blue jay to fly that same distance?

A- 55 minutes
B- 1 hour 8 minutes
C- 1 hour 45 minutes
D- 2 hours 15 minutes

Answer:

a) 4 quarts of sparkling water

b) 38.5 quarts of grape juice

c) 80 quarts of sparkling water and 20 quarts of grape juice

The answers for the letters in the chart are on the bottom for b and c.

Step-by-step explanation:

a) You would need 4 quarts of sparkling water for 1 quart of grape juice.

 This proportion is to get the amount of grape juice you need you multiply the amount of sparkling water by .25 to get the amount of grape juice you need.

So for a) I know that .25 of a quart of grape juice is equal to 1 quart of sparkling water. So to get the amount of sparkling water multiply the amount of grape juice you need by .25. And the number you multiplied .25 will be the amount of sparkling water you need. Example: 4 × .25 = 1 quart of grape juice.

4 is the amount of sparkling water you need.

b) For b you just need to multiply the amount of sparkling water by .25 to get the amount of grape juice you need.

154 × .25 = 38.5

You need 38.5 quarts of grape juice.

c) You would need 80 quarts of sparkling water and 20 quarts of grape juice.

80 × .25 = 20

b on the graph is 38.5  because 154 × .25 = 38.5

c on the graph is 400 because .25 × 400 = 100

HOpe this helps ya!!

Answer: this might be wrong well we all know it’s is going to be wrong but let’s give it a shot so I am probably going to go with answer C

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k guys plz give me brainless I need it so much I suck we’ll probably not but u get the point but give me brainles ppppppppplllllllllllllzzzzzzzzzzzzzzz I need it

Answer: 2

Step-by-step explanation:

Btw I’m a beginner

Answer:

19.35

Step-by-step explanation:

Answer:

its c plse mark me brainliest

Step-by-step explanation:

−69+74 would be the answer

Answer:

9. x=-6, y=0

10. x=-9, y=-10

11. x=3, y=-1

Step-by-step explanation:

[tex]2x-9y=-12\\3x+18y=-18[/tex]

Multiply the first equation by 2.

[tex]4x-18y=-24\\3x+18y=-18[/tex]

Add the equations.

[tex]7x=-42[/tex]

[tex]x=-6[/tex]

We figured out x now we have to figure out y. To figure out y plug in x into any equation.

[tex]2(-6)-9y=-12[/tex]

[tex]-12-9y=-12[/tex]

[tex]-9y=0[/tex]

[tex]y=0[/tex]

Your answer is x = -6 and y = 0 for number nine.

[tex]6x+3y=24\\2x+3y=-12[/tex]

Change the signs of the second equation becuase 3y and 3y are both positive. We need one of them to be negative.

[tex]6x+3y=24\\-2x-3y=12[/tex]

Add them.

[tex]4x = 36[/tex]

[tex]x=9[/tex]

Now we have to figure out y.

[tex]2(9)+3y=-12[/tex]

[tex]18+3y=-12[/tex]

[tex]3y=-30[/tex]

[tex]y=-10[/tex]

x=-9 and y=-10 is your answer to number ten.

[tex]10x+5y=25\\-7x-3y=-18[/tex]

[tex]30x+15y=75\\-35x-15y=-90[/tex]

[tex]-5x=-15[/tex]

[tex]x=3[/tex]

[tex]-7(3)-3y=-18[/tex]

[tex]-21-3y=-18[/tex]

[tex]-3y=3[/tex]

[tex]y=-1[/tex]

x=3 and y=-1 is the answer to number eleven. I hope this helps! Let me know if I got anything wrong.

Answer:5/16

Step-by-step explanation:

Answer:

-4x - 1/4

Step-by-step explanation:

Multiply

-4x - 4/16

-4/16 can be simplified to -1/4

Answer:

6

Step-by-step explanation:

[tex] \frac{2}{3 } | \frac{1}{?} | \frac{1}{8} [/tex]

a.) 2

b.) 6

c.) 12

d.) 16

Answer:

I took a test already for this it 78x2

Step-by-step explanation:

Welcome

1) Expand by distributing terms

7a+7 x-3

Simplify 7x-3 to -21

7a-21

Answer:

7a-21

Step-by-step explanation:

7(a-3)=

7 a-21

Answer: A

Step-by-step explanation: It doesn't. The circumference of a circle is 2*pi*radius and the diameter is 2*radius, so the circumference divided by the diameter is pi, which is the ratio of circumference to diameter.

Answer:

the awnser is A

hope this helped ya :)

Step-by-step explanation:

Answer: 41

Step-by-step explanation:

Using a system of equations, it is found that he took 30 students to the movies.

------------------------------

This question is solved using a system of equations, and I will say that:

------------------------------

40 people were taken, and thus:

[tex]x + y = 40[/tex]

As we want the number of students x, we can represent y as function of x, thus:

[tex]y = 40 - x[/tex]

------------------------------

Thus:

[tex]4x + 6y = 180[/tex]

Since [tex]y = 40 - x[/tex]

[tex]4x + 6(40 - x) = 180[/tex]

[tex]4x + 240 - 6x = 180[/tex]

[tex]-2x = -60[/tex]

[tex]2x = 60[/tex]

[tex]x = \frac{60}{2}[/tex]

[tex]x = 30[/tex]

He took 30 students to the movies.

A similar problem is given at https://brainly.com/question/22826010

Answer:

A or B, you choose.

Step-by-step explanation:

Pick either A or B since either choice is correct.

Answer:

f(x)= -2x-3, im so sorry if this is wrong

Step-by-step explanation:

to translate it left you have to add 2

Answer:

I will do one of them and explain so you can do the rest

an 80% increase followed by a 40% decrease.

since the increase is greater than the decrease (80>40) it would go into the greater than original group since it has been increased.

Answer:

y=3x+5

Step-by-step explanation:

x is being added up by 3

y is being added up by 5

Its A pattern

Answer:

Tyrell, Yen, Hana (A)

Step-by-step explanation:

Answer:

Tyrell, Yen, Hana

Step-by-step explanation:

(Choice A)

Answer:

-2.2s - 5

Step-by-step explanation:

Perimeter = - 8.8s - 20

Square = 4 equal sides

-8.8s - 20 /4 = -2.2s - 5, which would be one side

I hope this helps. Let me know if something is wrong or you need more clarification.

Answer:

The Answer here is 11

Step-by-step explanation:

First, we divide inside the parentheses because we always do what is inside the parentheses first, and division comes before addition. So 12/4 is 3. Next we add 3 plus 1, which is 4. Then we multiply (Because multiplication comes before subtraction, and parentheses mean multiplication) 4 times 1 which is 4. Then we subtract 15-4 which comes out to 11.

Hence the answer here is 11.

Hope this helped!!

Answer:

Step-by-step explanation:Simplifying

0 = 2.5y + -20

Reorder the terms:

0 = -20 + 2.5y

Solving

0 = -20 + 2.5y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-2.5y' to each side of the equation.

0 + -2.5y = -20 + 2.5y + -2.5y

Remove the zero:

-2.5y = -20 + 2.5y + -2.5y

Combine like terms: 2.5y + -2.5y = 0.0

-2.5y = -20 + 0.0

-2.5y = -20

Divide each side by '-2.5'.

y = 8

Simplifying

y = 8

SO the answer is y=8 I think srry if i get it wrong

Answer:

0 < 1/13 < 49/100 < 1/2 < 11/20 < 8/9 < 1

Step-by-step explanation:

You find the LCD which is 11700 to make them equivalent fractions

0/11700 11700/11700 5850/11700 10400/11700 5733/11700 6435/11700 900/11700

Its easier doing that so now you just use the numerator to sort them from least to greatest

HOPE this helps

Plz mark me brainliest

Answer:

$9.70

Step-by-step explanation:

Please mark brainliest.

Answer:

tip - $9.7

total cost - $58.2

Step-by-step explanation:

Answer:

15 divided by 3 -\(0-0)/-

Step-by-step explanation:

Answer:

8.25y - 14

Step-by-step explanation:

4(1.75y - 3.5) + 1.25y

Distribute;

7y - 14 + 1.25y

Combine like terms;

8.25y - 14

Answer:

7.99

Step-by-step explanation:

if x = 1.7

x² = 2.89

3x = 3 times x = 5.1

so

2.89 + 5.1 = 7.99

Answer:

-2m

Step-by-step explanation:

like 5m - 3m but the opposite so -5m, then add 3m