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UNO [17]
3 years ago
6

2x+y=7 NEED HELP WITH THIS EQUATION

Mathematics
2 answers:
gogolik [260]3 years ago
6 0

x=\frac{7-y}{2}

y=7−2x

nevsk [136]3 years ago
4 0

Answer:

y=2x+7

Step-by-step explanation:

2x+y+-2=7+-2

y=2x+7

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A teacher wrote this experssion on the board (-6)(2)+(-8÷4) what is the vaule of this expression
VLD [36.1K]

Answer:

-14

Step-by-step explanation:

(-12)+(-2)

You solve using Pemdas, doing the (-8/4) first, and then doing (-6)(2)

The answer is the two values added together.

3 0
2 years ago
skyalr makes turkey sandwiches for a family. he purchases 5 pounds 4 ounces of sliced Turkey for $26.88.what is the unit cost pe
algol [13]

Answer:

$0.32/ounce

Step-by-step explanation:

Total cost of Turkey - $26.88

Amount Purchased - 5 pounds 4 ounces

16 ounces in a pound

5 x 16 + 4 = 84

\frac{84x}{84} = \frac{26.88}{84}

x = $0.32

7 0
3 years ago
Solve the linear equation:<br><br> x-y=7<br><br> 0.5x+y=5
evablogger [386]

Add the equations.

x-y%2B0.5x%2By=7%2B5

1.5x=12

 

highlight%28x=8%29

Now use either equation to solve for y.

8-y=7

highlight%28y=1%29

x=8

y=1

4 0
3 years ago
Trig help please!!! This is due tomorrow. If you don’t mind could you please explain how you do it
vivado [14]

Answer:

The larger acute angle is equal to 50.8 degrees.

Step-by-step explanation:

Let's solve for both of the acute angles for the purpose of checking our work at the end with angle A being the top angle and angle B being the one on the base of the triangle (that's not the 90 degrees one). Determining whether to use sin/cos/tan comes from SOH-CAH-TOA.

A = cos^-1 (2√6/2√15)

However, you need to move the radical out of the denominator by multiplying √15 to the numerator and denominator. You should come up with (2√90)/30. So,

A = cos^-1 (2√90/30) = 50.768 degrees.

B = sin^-1 (2√90/30) = 39.231 degrees.

Now, we can check the work by adding the 2 angles to 90 and, if it comes to 180, it's right.

cos^-1 (2√90/30) + sin^-1 (2√90/30) + 90 = 180.

If you have any questions on where I got a formula or any step, feel free to ask in the comments!

8 0
3 years ago
Place these decimals in order from least to greatest .123 .12 .10 .103 .132
Trava [24]
.10      .103       .12      .123      .132
6 0
3 years ago
Read 2 more answers
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