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3 years ago

A dime has the same value as 10 pennies. Marley brought 290 pennies to the bank. How many dimes did Narley get?

Mathematics

1 answer:

Oxana [17]3 years ago

5 0

The answer is simply 290 pennies divided by 10 pennies per dime. The answer is 29 dimes.

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Intercept from a table

gladu [14]

$\bf \begin{array}{ccll} x&y\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ \boxed{14}&\boxed{-5}\\ 21&-3\\ \boxed{28}&\boxed{-1} \end{array}\impliedby \textit{we'll use two points to get the slope}$

$\bf (\stackrel{x_1}{14}~,~\stackrel{y_1}{-5})\qquad (\stackrel{x_2}{28}~,~\stackrel{y_2}{-1}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-1-(-5)}{28-14}\implies \cfrac{-1+5}{28-14} \\\\\\ \cfrac{4}{14}\implies \cfrac{2}{7} \\\\\\ \stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-5)=\cfrac{2}{7}(x-14) \\\\\\ y+5=\cfrac{2}{7}x-4$

now, to get the y-intercept, we simply set x = 0 and solve for y, and to get the x-intercept, we set y = 0 and solve for x.

$\bf \stackrel{\textit{y-intercept, x = 0}}{y+5=\cfrac{2}{7}(0)-4}\implies y+5=-4\implies y=-9\qquad \qquad \stackrel{y-intercept}{(0~,-9)}\\\\ -------------------------------\\\\ \stackrel{\textit{x-intercept, y = 0}}{(0)+5=\cfrac{2}{7}x-4}\implies 5=\cfrac{2x}{7}-4\implies 9=\cfrac{2x}{7}\implies 63=2x \\\\\\ \cfrac{63}{2}=x\implies 31\frac{1}{2}=x\qquad \qquad \qquad \qquad \qquad \qquad \qquad \stackrel{x-intercept}{\left( 31\frac{1}{2}~,~0 \right)}$

8 0

3 years ago

In triangle abc, angle c=(5x), angle b = x, and angle c =(3x). what is angle c

Butoxors [25]

Answer:

60 degrees

Step-by-step explanation:

a+b+c= 180 degrees therefore 5x + x + 3x = 9x

9x=180 (divide) --> x=20

since c = 3x substitute in 20 for x --> 3(20) = 60 degrees for angle c

7 0

3 years ago

Isaac is on the 4th floor of a building. If he rides an elevator up 7 floors, what floor will he be on? What integer represents

frutty [35]

Answer:

11th floor

Step-by-step explanation:

7 0

4 years ago

A recipe uses 5 cups of flour for every 2 cups of sugar. How much sugar is needed for 6 cups of flour

sp2606 [1]

Answer:

2.4 cups

Step-by-step explanation:

Divide 2 by 5

= 0.4

We have 2 cups of sugar

2 + 0.4 = 2.4 cups.

8 0

4 years ago

A rectangular prism with a length of 5 centimeters, width of 4 centimeters, and height of 3 centimeters.

Korolek [52]

Answer:

60cm3

Step-by-step explanation:

volume of a rectangular prism=(length)(width)(height)

V=(5)(4)(3)

V=60cm3

7 0

4 years ago

Read 2 more answers