3 years ago

Can some one help with this one question

Mathematics

2 answers:

jolli1 [7]3 years ago

5 0

the answer is D. day 4

Oliga [24]3 years ago

4 0

D. day 4
There is a spike in the graph indicating this.

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3 years ago

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3 years ago

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Vika [28.1K]

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3 years ago

Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.Josiah has punch c

love history [14]

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,

$\begin{gathered} x=3 \\ \Rightarrow T=2+7\cdot3=23 \\ \Rightarrow T=23 \end{gathered}$

Thus, after 3 weeks, Josiah will have the same number of punches on each card, and he will have 23 punches on each card.

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Shawn's collection has 38 more rocks in it than Cameron's collection. Together, they have 70 rocks. How many rocks are in Shawn'

PSYCHO15rus [73]

Please help solve 12-14

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