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crimeas [40]
3 years ago
15

The sum of two numbers is 20. one number is three times as large as the second number. what are the two numbers? which let state

ment would you use?
Mathematics
1 answer:
Gnesinka [82]3 years ago
6 0
The answer is five and fifteen.
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Question 1 of 12, Step 1 of 1
stellarik [79]

Answer:

325 and 375 mph

Step-by-step explanation:

Given :

Distance between plane A and B = 2800

Recall :

Distance = speed * time

Let speed of A = v1

Speed of B = v2

v1 = v2 + 50

Time taken = 4 hours

Distance = speed * time

Total distance = 2800

2800 = v1 * 4 + v2 * 4

2800 = (4v1) + (4v2)

2800 = 4(v2+50) + 4v2

2800 = 4v2 + 200 + 4v2

2800 = 8v2 + 200

2800 - 200 = 8v2

2600 = 8v2

v2 = 2600/8

v2 = 325 mph

v1 = v2 + 50

v1 = 325 + 50

v1 = 375 mph

8 0
3 years ago
What is the next term of the geometric sequence?<br><br> 4/9,-4/3,4,...<br> ​
Wittaler [7]

Answer: 9 is the answer

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Help me please and thank you
Scorpion4ik [409]

Answer:

x = 20

y = 10

m∡8 = 110°

Step-by-step explanation:

m∡1 + m∡2 = 180

5x + y + 3x + y = 180

8x + 2y = 180

m∡1 = m∡8    (they are alternate-exterior angles and are congruent)

5x + y = 3x + 5y

2x = 4y

x = 2y

Substitute '2y' for 'x' in 8x + 2y = 180

8(2y) + 2y = 180

18y = 180

y = 10

x = 2(10)

x = 20

m∡8 = 3(20) + 5(10) = 110°

8 0
3 years ago
Graph g(x)=-5|x+2|+2
Llana [10]
This is the graph for the equation, it crosses through points (0,-8) (-2,4) (-1.6,0) and its vertex is (-2,2)

Hope this helps !!

7 0
3 years ago
&lt;4 and &lt;5 are suplementary angles. if m&lt;4=76 degree then m&lt;5=?​
Yuri [45]

Answer:

.

Step-by-step explanation:

5 0
3 years ago
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