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Yuliya22 [10]
4 years ago
12

A plane flew a total of 2,220 miles. Its average

Mathematics
1 answer:
mojhsa [17]4 years ago
8 0

Answer:

4 Hours

Step-by-step explanation:

1). Since Speed (V) = Distance (D)/Time (t)

2). Then t=D/V ( transpose)

3). So t= 2220/555

t= 4 hours

The plane flew for four hours

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The Sum of 4 times one number and 3 times the second number is 65. The sum if the 2 numbers is 18. What are the numbers and equa
nalin [4]
4x + 3y = 65
X + y = 18

When you use elimination, multiply the second equation by -3
4x + 3y = 65
-3X -3y = -54
X = 11


X+y = 18
11 + y = 18
Y = 7
3 0
3 years ago
Right triangles to find the exact length of:<br> T<br> 30°<br> 14 in<br> a) TI = in<br> 60°<br> R
ira [324]
<h3>Answer:</h3>

a) TI = 7√3 in

b) IR = 7 in

<h3>Explanation:</h3>

<u>Using cosine rule</u>:

\sf cos(x) = \dfrac{adjacent}{hypotenuse}

\hookrightarrow \sf cos(30) = \dfrac{TI}{14}

\hookrightarrow \sf TI =  14cos(30)

\hookrightarrow \sf TI =  7\sqrt{3}

<u>Using sine rule</u>:

\sf sin(x) = \dfrac{opposite}{hypotenuse}

\hookrightarrow \sf sin(30) = \dfrac{IR}{14}

\hookrightarrow \sf  IR = 14sin(30)

\hookrightarrow \sf  IR = 7

5 0
2 years ago
en una reunion hay 2 arequipeños,2 trujillanos, 3 piuranos y 4 limeños ¿de cuantas maneras diferentes pueden colocarse en un fil
Svetlanka [38]

Answer:

In a meeting there are 2 Arequipeños, 2 Trujillanos, 3 Piuranos and 4 Limans. In how many different ways can they be placed in a row so that those of the same city are together?

Step-by-step explanation:

3 0
4 years ago
Adam is carrying books to the classroom for his teacher. Each book weighs 3.85 pounds. If he carries 4 books, about how many pou
Sloan [31]
Correct answer should be = 15.4 pounds.
8 0
3 years ago
Solve the inequality. 9x − 4 &gt; 95
SOVA2 [1]

Answer:Rearrange the equation by subtracting what is to the right of the greater equal sign from both sides of the inequality :

                    9*x-4-(95)≥0

Step by step solution :

STEP

1

:

Pulling out like terms

1.1     Pull out like factors :

  9x - 99  =   9 • (x - 11)

Equation at the end of step

1

:

STEP

2

:

2.1    Divide both sides by  9

Solve Basic Inequality :

2.2      Add  11  to both sides

            x ≥ 11

Inequality Plot :

2.3      Inequality plot for

        9.000 X  - 99.000  ≥  0

 

One solution was found :

x ≥ 11

Step-by-step explanation:

3 0
3 years ago
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