3 years ago

SOMEONEEEE HELLPPPPPPP PLEASE?!??!

Mathematics

2 answers:

Black_prince [1.1K]3 years ago

5 0

the Answer is: (x,y)=(1,4)

padilas [110]3 years ago

4 0

Answer:

(1,4)

Step-by-step explanation:

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Need help fast, will give brainliest!

hoa [83]

Answer:

Correct answer is A

Step-by-step explanation:

3 0

3 years ago

a map has a scale mileage chart with 100 miles equal to 1 inch. If a journey across part of Texas is 650 miles, how long is the

Dvinal [7]

If 100 miles = 1 in.

650 = 6.5 x 100 and 6.5 x 1 = 6.5

so, if the journey is 650 m...... the map is 6.5 in.

5 0

3 years ago

How do you evaluate 3yx+2x when x=4 and y=-2<br> A. -28<br> B. -16<br> C. 8<br> D. 56

Vikki [24]

Answer:

B: -16

Step-by-step explanation:

Plug the variables in accordingly. 3(-2)(4)+2(4)

-6(4)+8

-24+8

-16

8 0

3 years ago

The veloctiy of sound in air is given by the equation v=20 times the square root of 273+t where v is the velocity in meters per

Nikitich [7]

So we just need to plug in our values and solve
$v = 20 \sqrt{273 + t}$
we are given v is 369 so we have
$369 = 20 \sqrt{273 + x}$
now we solve for x.
divide both sides by 20
square both sides
subtract 273 from both sides
$369 = 20 \sqrt{273 + x} \\ 18.45 = \sqrt{273 + x} \\ 340.40 = 273 + x \\ x = 67.4$
so a temp of about 67 degrees C

5 0

3 years ago

Read 2 more answers

In which of the expressions below will x = 12.5? Select all

erma4kov [3.2K]

The answer is D

2x / 5 = 5

5 x 5 = 25

2x = 25

25/2

x= 12.5

4 0

3 years ago

Read 2 more answers