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Nataliya [291]
3 years ago
13

I need help with this problem​

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

The answer to the equation is 15

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Claire has two $20 bills, two $5 bills, and three
jarptica [38.1K]

Answer:

153

Step-by-step explanation: 20 x 2 + 5 x 2 + 3 x 1+ 100

6 0
4 years ago
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Ella completed the following work to test the equivalence of two express
murzikaleks [220]

Answer:

The expressions are not equivalent because Ella did not know that you can’t use substitution to test for equivalence.

Step-by-step explanation:

<u>Equivalent algebraic expressions</u> are those expressions which on simplification give the same resulting expression.

Two algebraic expressions are said to be <u>equivalent</u> if their values obtained by substituting any values of the variables are same.

Two expressions 3f+2.6 and 2f+2.6 are not equivalent, because when f=1,

3f+2.6=3\cdot 1+2.6=3+2.6=5.6\\ \\2f+2.6=2\cdot 1+2.6=2+2.6=4.6\\ \\5.6\neq 4.6

Method of substitution can only help her to decide the expresssions are not equivalent, but if she wants to prove the expressions are equivalent, she must prove it for all values of f.

3f+2.6=2f+2.6\\ \\3f=2f\\ \\3f-2f=0\\ \\f=0

This is true only when f=0.

Hence,

The expressions are not equivalent because Ella did not know that you can’t use substitution to test for equivalence.

5 0
3 years ago
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The price of a visit to the dentist is $ 50 $50dollar sign, 50. If the dentist fills any cavities, an additional charge of $ 100
Eduardwww [97]

Answer:

well you dont have a value of amounts of cavities so ill write write an equation 50+x100 where x represents amount of cavitys

5 0
3 years ago
The sum of three certain consecutive numbers is 240. Find the three numbers. [Hint: Let x stand for the smallest number. Since t
Verdich [7]
The numbers are 79, 80, and 81.

79+80+81=240.
8 0
3 years ago
What is the side length of a square with a perimeter of 56 feet?
Mnenie [13.5K]

Answer:

14

Step-by-step explanation:

Since a square has four equal sides, you just have to divide 56 by 4, which is 14

6 0
3 years ago
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