# Math For Chemistry Quiz 1

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Bensonfelicia
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Questions: 10 | Attempts: 192  Settings  .

• 1.

• 2.

### All equations have equal signs

• A.

True

• B.

False

A. True
Explanation
The statement "All equations have equal signs" is true because an equation is a mathematical statement that shows the equality between two expressions using an equal sign. In an equation, both sides of the equal sign represent the same value or quantity. Without an equal sign, it would not be an equation but rather an expression or inequality. Therefore, the presence of an equal sign is a necessary condition for an equation.

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• 3.

### Evaluate means :

• A.

The number in front of the variable

• B.

replace each variable with a number and follow the order of operations

• C.

The repeated factor of a number in exponential form

• D.

A set of whole number and their opposites

B. replace each variable with a number and follow the order of operations
Explanation
The term "evaluate" in mathematics refers to the process of substituting variables with specific numbers and performing the necessary operations according to the order of operations. This allows us to find the numerical value of an expression or equation.

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• 4.

base
• 5.

### 6 + x/4 = -1

• A.

.8

• B.

-28

• C.

-20

• D.

20

B. -28
Explanation
To solve the equation 6 + x/4 = -1, we need to isolate the variable x. First, we subtract 6 from both sides to get x/4 = -7. Then, we multiply both sides by 4 to eliminate the fraction, which gives us x = -28. Therefore, the correct answer is -28.

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• 6.

### X + 13 = 25

• A.

38

• B.

12

• C.

-12

• D.

-38

B. 12
Explanation
The equation X + 13 = 25 can be solved by subtracting 13 from both sides of the equation. This gives us X = 12. Therefore, the correct answer is 12.

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• 7.

### Solve -5 = c/7

• A.

-7/5

• B.

-12

• C.

-5/7

• D.

-35

D. -35
Explanation
To solve the equation -5 = c/7, we need to isolate the variable c. We can do this by multiplying both sides of the equation by 7, which cancels out the denominator on the right side. This gives us -35 = c. Therefore, the value of c that satisfies the equation is -35.

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• 8.

### The number in front of the variable is the ______

coefficient
Explanation
The number in front of the variable is referred to as the coefficient. Coefficients are used to multiply the variable in an algebraic expression or equation. They indicate the quantity or scale of the variable's value.

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• 9.

### Solve the following m/4 + 9/8.  What is the first step; you must have identical?

• A.

Numerators

• B.

Variables

• C.

Denominators

• D.

Fractions

C. Denominators
Explanation
To solve the given expression, the first step is to ensure that the denominators of the fractions are identical. This is because when adding or subtracting fractions, the denominators must be the same. In this case, the denominators are "4" and "8". To make them identical, we can find the least common multiple (LCM) of 4 and 8, which is 8. Therefore, the first step is to convert the fraction with a denominator of 4 to an equivalent fraction with a denominator of 8.

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• 10.

### A term without a variable is the coefficient

• A.

True

• B.

False

B. False
Explanation
constant

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• 11.

### Meaghan was asked to solve the following 4m + 8 = -27 + 81m.  What the second step she should perform? Back to top