3 years ago

What is the numberpattern in 4-14-30-?

Mathematics

1 answer:

maria [59]3 years ago

8 0

Answer: You can count them by 2?

Step-by-step explanation:

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30

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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,

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

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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1 year ago

Serrians triangle has a height of 3x-4 and the base length is 8x+4 what is the area of the triangle

kirill115 [55]

Area of a triangle is base × height ÷2
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A=b×h÷2
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A=(-4/6)÷2/1 to divide by fractions flip the second and multiply
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3 years ago