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3 years ago

Plzz help!!!

Mathematics

2 answers:

VashaNatasha [74]3 years ago

5 0

Leighahne is saving at a faster rate than Martin

Mkey [24]3 years ago

5 0

Answer:

Leighanne is saving at a faster rate than Martin.

Step-by-step explanation:

We see from the graph that Leighanne started out at (0, 15); this means she began with $15.

At 1 week, Leighanne has $60; this means she is saving 60-15 = $45 each week.

Martin goes from week 1 at $65 to week 3 at $145; this means he has saved $145-$65 = $80 in 2 weeks, or 80/2 = $40 per week.

This means he started with $65-$40 = $25.

Thus the only correct statement is that Leighanne is saving at a faster rate than Martin.

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A rectangle has a length of 16 feet and a width of 12 feet. Find the area of the rectangle in square feet.

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Find what point is on the graph of f if f(5) = -9

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3 years ago

5. Find the first, fourth, and tenth terms of the arithmetic

Lubov Fominskaja [6]

The first, fourth and tenth terms of the arithmetic sequence is $-6, -\frac{27}{5}$ and $-\frac{21}{5}$

Explanation:

The given rule for the arithmetic sequence is $A(n)=-6+(n-1)(\frac{1}{5} )$

We need to determine the first, fourth and tenth terms of the sequence.

To find the first, fourth and tenth terms, let us substitute $n=1,4,10$ in the general rule for the arithmetic sequence.

To find the first term, substitute $n=1$ in $A(n)=-6+(n-1)(\frac{1}{5} )$ , we get,

$A(1)=-6+(1-1)(\frac{1}{5} )$

$A(1)=-6+(0)(\frac{1}{5} )$

$A(1)=-6$

Thus, the first term of the arithmetic sequence is -6.

To find the fourth term, substitute $n=4$ in $A(n)=-6+(n-1)(\frac{1}{5} )$ , we get,

$A(2)=-6+(4-1)(\frac{1}{5} )$

$A(2)=-6+(3)(\frac{1}{5} )$

$A(2)=\frac{-30+3}{5}$

$A(2)=\frac{-27}{5}$

Thus, the fourth term of the arithmetic sequence is $-\frac{27}{5}$

To find the tenth term, substitute $n=10$ in $A(n)=-6+(n-1)(\frac{1}{5} )$ , we get,

$A(10)=-6+(10-1)(\frac{1}{5} )$

$A(10)=-6+(9)(\frac{1}{5} )$

$A(10)=-6+\frac{9}{5}$

$A(10)=-\frac{21}{5}$

Thus, the tenth term of the arithmetic sequence is $-\frac{21}{5}$

Hence, the first, fourth and tenth terms of the arithmetic sequence is $-6, -\frac{27}{5}$ and $-\frac{21}{5}$

3 0

4 years ago

I'm not understanding this very well can anyone help me?

vladimir2022 [97]

Answer:

x = 25

Step-by-step explanation:

Noting that these figures are similar, we set up and solve an equation of ratios:

x 30

---- = ------

15 18

Cross multiplying, we get:

18x = 30(15), or 3x = 5(15) = 75. Then x must be 25.

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3 years ago

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3 years ago