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sergiy2304 [10]
3 years ago
6

What is the first step in solving this system by elimination?

Mathematics
1 answer:
kherson [118]3 years ago
4 0

You want to try and get rid of one of the variables ( x or y) so you would multiply the second equation by 2 which would make the x variable -2x which then when added to the first equation would eliminate the x variable.

Answer: c. Multiply the second equation by 2.

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On a scale drawing, a bookshelf is 8 inches tall. The scale factor is 1/8. What is the height of the bookshelf?
lukranit [14]
8 inches = 1/8 of the real height of the book shelf
Multiply 8 by 8 because the question shows 1/8 of the book shelf
8x8=64
The book shelf is 64 inches.
Or 5 feet and 4 inches.
6 0
3 years ago
The bearing from the Pine Knob fire tower to the Colt Station fire tower is N 65° E, and the two towers are 31 kilometers apart.
suter [353]

The distance are

a. 42.42

b. 15. 52

<h3>How to solve for the distance</h3>

80 = 65 + <ABC

<ABC = 80 - 65

= 15

Through the use of sine rule we would have

By using sine rule,

Sine 15/a = sine 135/b =

sin 30/30.

Next we have to solve b by cross multiplying

b = (30× sin135) / sin 30

= 21.21/0.5

b = 42.42 km

Also, the value of a will be:

= (42.42 × sin 15) / sin 135

= 10.98/0.7071

= 15.52

Read more on bearing here:

brainly.com/question/15221233

#SPJ1

3 0
2 years ago
A car is moving at a rate of 35 miles per hour, and the diameter of its wheels is 2.5 feet. (Round 1 decimal place).
Rudik [331]
Tbh I really don’t know and I hope someone helps you
3 0
3 years ago
If Lucy runs 1 2/3 miles each day, how many miles will Lucy run in 2 days?
dezoksy [38]

Answer:

She will run 3 1/3 miles in 2 days

Step-by-step explanation:

1 2/3 + 1 2/3 = 2 4/3

= 3 1/3

3 0
3 years ago
Read 2 more answers
How many centimeters are in 4.4 inches
marissa [1.9K]
4.4 inches = 11.176 centimeters.

1 inch = 2.54 cm.

So, to get the answer, you have to multiply 4.4 x 2.54, which gets you 11.176 centimeters. 
7 0
3 years ago
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