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2 years ago

A. 2x+5=23 B. x+2+5=23 C. x+x+5=23 D. 5x+2=23

Mathematics

2 answers:

Romashka-Z-Leto [24]2 years ago

8 0

Answer:

your answer is A

Step-by-step explanation:

if you look at the amount of "x's " you have , you put them together and you will get 2x and you add 5 and your answer 23...

hopefully i was helpful

storchak [24]2 years ago

6 0

Answer:

Step-by-step explanation:

lucky guess

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There are 450 people at a play, the total receipt for $600 and the admission was $2 for adults and $0.75 for children, how many

sdas [7]

Answer:

340 children, 210 adults.

Step-by-step explanation:

$Let \ a \ - adults, \ c - children;\\c + a = 450\\0.75c + 2a = 600|\cdot 4\\3c + 8a = 2400;\\\\c + a = 450|\cdot(-3)\\3c + 8a = 2400\\-3c -3a = -1350\\5a = 1050 => a = 210, c = 450 -210 = 340.$

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3 years ago

Find x a) 21 √2 b)7 c)21 √2/2 d)21 √3/2

fgiga [73]

Answer:

Step-by-step explanation:

Use the sine ratio in the left, right triangle to find the common side to both triangles and the exact values

sin60° = $\frac{\sqrt{3} }{2}$ , cos45° = $\frac{1}{\sqrt{2} }$ , thus

sin60° = $\frac{opposite}{hypotenuse}$ = $\frac{opp}{7\sqrt{3} }$ = $\frac{\sqrt{3} }{2}$ ( cross- multiply )

2 × opp = 21 ( divide both sides by 2 )

opp = $\frac{21}{2}$

Now consider the right triangle on the right, using the cosine ratio

cos45° = $\frac{adjacent}{hypotenuse}$ = $\frac{\frac{21}{2} }{x}$ = $\frac{1}{\sqrt{2} }$ ( cross- multiply )

x = $\frac{21}{2}$ × $\sqrt{2}$ = $\frac{21\sqrt{2} }{2}$ → C

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2 years ago

Nathan ordered one cheeseburger and one bag of chips for 3.75 jack ordered two cheeseburgers and three bags of chips for 8.25 kn

Elan Coil [88]

Answer:

cheeseburger is $3 and chips is $0.75

Step-by-step explanation:

Let price of cheeseburger be x while price of a bag of chips be y hence for the case of Nathan, we can write the equation as x+y=3.75. Similarly, for Jack, we can write it as 2x+3y=8.25

x+y=3.75 hence x=3.75-y and substituting this into the second equation we have

2x+3y=8.25

2(3.75-y)+3y=8.25

7.5-2y+3y=8.25

y=8.25-7.5=0.75

x=3.75-y=3.75-0.75=3

Therefore, price of cheeseburger is $3 and chips is $0.75

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3 years ago

Convert the angle 0=17pie/18 radians to degrees. Express your answer exactly.

Anettt [7]

170° is the answer I got hope it helps

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2 years ago

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hichkok12 [17]

Answer:

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Step-by-step explanation:

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