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IrinaK [193]
3 years ago
14

Angle a​ and​ ​angle b​ ​are complementary angles. The measure of ∠a is 42°.

Mathematics
1 answer:
Citrus2011 [14]3 years ago
8 0
My work to your question
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The cost of 6 sandwiches and 4 drinks is $53. The code of 4 sandwiches and 6 drinks is $47. How much does one sandwich cost?
Annette [7]

Answer:

$6.50

Step-by-step explanation:

SET UP A SYSTEM OF EQUATIONS WHERE SANDWHICHES IS REPRESENTED BY S AND DRINKS BY D:

6S+4D = 53

4S+6D=47

ADD THEM TOGETHER

10S+10D=100

SOLVE FOR D

10D = 100 - 10S

D = 10-S

SUBSTITUTE THAT VALUE INTO ONE OF THE ORIGINAL EQUATIONS

4S + 6(10-S) = 47

4S + 60 - 6S = 47

COMBINE LIKE TERMS

-2S + 60 = 47

SUBTRACT 60 FROM BOTH SIDES

-2S = -13

DIVIDE BY -2

S = 13/2

S = $6.50

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3 years ago
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Long division for 1\18 PLS HELP I NEED IT RN ASAp
aniked [119]

Answer:

0.05555555555

Step-by-step explanation: divide 1 by 18.

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3 years ago
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6 in.
asambeis [7]

Answer:

152 square inches

Step-by-step Explanation:

To answer this, please look at the picture below. We can find the area by separating and combine the value of areas after calculating three values for each areas. (Notice that when we separate them, we get three rectangles which we can use the formula of width × length)

We should get 80+48+24 which add up to 152.

In case if you are confused which parts you don't understand in these photos, you can ask in the comment.

5 0
3 years ago
What is<br><br><br> <img src="https://tex.z-dn.net/?f=4%5Cfrac%7B1%7D%7B2%7D%20X3%5Cfrac%7B3%7D%7B4%7D" id="TexFormula1" title="
Anestetic [448]
Answer: 135/8

4-1/2*3-3/4=9/2*15/4

9/2*15/4=18/4*15/4=15*18/4*4

15*18/4*4=270/16=135/8
5 0
3 years ago
Expression A: X+3 Expression B: 1 + x + 2 Which statement can be used to show that these expressions are equivalent?
mariarad [96]

Answer:

The expressions name the same number regardless of the value of x

Step-by-step explanation:

4 0
3 years ago
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