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grigory [225]
2 years ago
12

An amount was increased from 40 to 46. Work out the percentage increase.

Mathematics
2 answers:
Finger [1]2 years ago
7 0

Answer:

15%

Step-by-step explanation:

A change from 40 to 46 represents a positive change (increase) of 15%

Use the formula found below on this webpage to find the percent change by replacing the given values:

Percent change = \frac{new-old}{|old|} × 100%

Percent change = \frac{46-40}{|40|} × 100% =

\frac{6}{40} × 100=15%% (increase)

Where: 40 is the old value and 46 is the new value. In this case we have a positive change (increase) of 15 percent because the new value is greater than the old value.

Aleonysh [2.5K]2 years ago
4 0

Answer: 40 is the old value and 46 is the new value. In this case we have a positive change (increase) of 15 percent because the new value is greater than the old value.

Step-by-step explanation: brainliest please :]

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Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.Josiah has punch c
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Let x be the number of weeks; therefore, the two linear equations are

\begin{gathered} T=2+7x \\ \text{and} \\ C=11+4x \end{gathered}

Where T stands for the punches on the tea punch card and C for the punches on the coffee punch card.

Solving by substitution. Set T=C, then

\begin{gathered} T=C \\ \Rightarrow2+7x=11+4x \\ \Rightarrow3x=9 \\ \Rightarrow x=\frac{9}{3}=3 \\ \Rightarrow x=3 \end{gathered}

Thus, substitute the value of x=3 into the first equation,

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6 0
1 year ago
lian has three lines on the board. lines m and n are parallel. lian says that the measure of <2 is 2/3 of the measure <1.
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Step-by-step explanation:

7 0
2 years ago
What values from the set {10, 11, 12, 13} that makes the equation 2(× - 5) = 12 true is, , 10, 11, 12 or 13?
olasank [31]

Answer: The value necessary from the set to make the equation true was 11.


Step-by-step explanation:

Process of elimination:

1. 2([10]-5)

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We substituted x for 11, and then the equation worked; so therefore the value we needed from the set was 11.


4 0
3 years ago
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