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Nat2105 [25]
3 years ago
6

Can someone help me with this problem ?

Mathematics
1 answer:
Katena32 [7]3 years ago
5 0

Answer:

What is the problem?

Step-by-step explanation:

There is no picture or anything?

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Write an equivalent expression for 4(3a+7)+3 (2a+5) if a=5, is the the solution to both expressions the same
artcher [175]
No because thefirst one is equal to 91 and the other is equal to 15
3 0
3 years ago
A movie theater has a seating capacity of 197. The theater charges $5.00 for children, $7.00 for students, and $12.00 of adults.
yarga [219]

Answer: 74 children attended

86 students attended

37 adults attended

Step-by-step explanation:

Let x represent the number of children that attended.

Let y represent the number of students that attended.

Let z represent the number of adults that attended.

The movie theater has a seating capacity of 197. It means that

x + y + z = 197- - - - - - - - - - - - -1

The theater charges $5.00 for children, $7.00 for students, and $12.00 of adults. If the total ticket sales was $ 1416, It means that

5x + 7y + 12z = 1416- - - - - - - - - - 2

There are half as many adults as there are children. It means that

It means that

z = x/2

x = 2z

Substituting x = 2z into equation 1 and equation 2, it becomes

2z + y + z = 197

y + 3z = 197- - - - - - - - - - - - -3

5 × 2z + 7y + 12z = 1416

10z + 7y + 12z = 1416

7y + 22z = 1416- - - - - - - - - - - 4

Multiplying equation 3 by 7 and equation 4 by 1, it becomes

7y + 21z = 1379

7y + 22z = 1416

Subtracting, it becomes

- z = - 37

z = 37

x = 2z = 2 × 37

x = 74

Substituting x = 74 and z = 37 into equation 1, it becomes

74 + y + 37 = 197

y = 197 - 74 - 37

y = 86

5 0
3 years ago
Please help I’ll mark you as brainliest if correct!<br><br> A<br> B<br> C<br> D
Andrei [34K]

Answer:

A is the answer

Step-by-step explanation:

8 0
3 years ago
If ABC forms a linear pair with CBD, use the Linear Pair Postulate to determine the value of x
arsen [322]
There you go any questions?

7 0
3 years ago
(5x^2−3x−2)−(−2x^2−x+10)<br> Express the answer in standard form
masha68 [24]

Answer:

7x2−2x−12

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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