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Sedaia [141]
2 years ago
5

Jack and Serena can write a lab report together in 12 hours. If all people work at the same rate, how many hours would it take t

o write a lab report if Kay joins Jack and Serena?
Mathematics
1 answer:
Softa [21]2 years ago
5 0
The answer would be 4 hours because 12/3 is 4
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(SAT Prep) Find the value of x.
emmainna [20.7K]

Answer:

120 deg

Step-by-step explanation:

Draw a horizontal line that passes vertices of 2 angles 125 deg and 115 deg.

This line is perpendicular with 2 vectors.

Apply the property of vertical angles and the sum of 3 angles in a triangle.

x = 180 - (125 - 90) - (115 - 90) = 120 deg

5 0
3 years ago
Explain: What is the solution to this system of equations? <br><br> 2x+y=20 <br> 6x-5y=12
bazaltina [42]

Answer:

solution set is (x,y) = (7,6)

Step-by-step explanation:

solving by substitution method

2x +y=20--------------1

6x-5y=12---------------2

from equation 1, solve for y

2x+y=20

y= 20-2x------equation 3

adding value of y in equation 2

6x-5y=12

6x-5(20-2x)=12

6x-100+10x=12

16x= 12+100

16x= 112

x= 112/16

x=7

adding value of x in equation 3

y= 20-2x

y= 20- 2(7)

y=20-14

y=6

so solution set (x,y) = (7,6)

3 0
3 years ago
Daniella made gift bows from 8 yards of ribbon. The bows are all the same size. If she made 16 bows, how much ribbon did she use
solniwko [45]

Answer:

1.5 feet

Step-by-step explanation:

there are three feet in a yard, so 8*3= 24, and 24/16=1.5 feet of ribbon used for each bow

4 0
3 years ago
Find the measure of one interior angle for the following regular polygon​
givi [52]

Answer:

120

Step-by-step explanation:

All the interior angles in a regular hexagon are 120 degrees.

7 0
3 years ago
Can you please help me on this ive been on this forever
Readme [11.4K]

Answer:

∠d , ∠f

Step-by-step explanation:

triangle ABC is similar to triangle DEF

∠A is same as angle ∠D as it is the opposite to it

∠c is same as ∠F as it is the opposite to it

6 0
3 years ago
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