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vaieri [72.5K]
2 years ago
7

Decrease 140g by 25%

Mathematics
2 answers:
Ilia_Sergeevich [38]2 years ago
8 0

Answer:

• let's first get the percentage decrease:

= { \rm{100\% - 25 \% }} \\ { \rm{ = 75\%}}

• then multiply the percentage decrease with the mass given:

= { \tt{75\% \times 140}} \\  \\  = { \tt{ \frac{75}{100}  \times 140}} \\  \\  = { \underline{ \tt{ \:  \: 105 \: g \: }}}

Ivanshal [37]2 years ago
6 0

Answer:

let's first get the percentage decrease:

=100%−25%

=75%

• then multiply the percentage decrease with the mass given:

=75%×140

= 75/100 ×140

= 105g

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A parent made x cupcakes for each of the 109 students in the fourth grade. Which expression could be used to determine the total
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109x is the expression that could be used to determine the total number of cupcakes made given that a parent made x cupcakes for each of the 109 students in the fourth grade. This can be obtained by forming the algebraic expression for the given conditions.

<h3>Find the required expression:</h3>
  • Algebraic expression is made up of numbers, operations and variables.
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Given that,

A parent made x cupcakes for each of the 109 students in the fourth grade.

The total number of students in the class = 109

The number of cupcakes one student gets = 1 × x = x

⇒ The number of cupcakes 109 student gets = 109 × x = 109x

Hence 109x is the expression that could be used to determine the total number of cupcakes made given that a parent made x cupcakes for each of the 109 students in the fourth grade.

Learn more about algebraic expression here:

brainly.com/question/953809

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