Ask question

Ask question

All categories

konstantin123 [22]

4 years ago

5

Sally has three times as many dimes as nickels and twice as many quarters as dimes. In all she has $5.55.How many of each type o

f coin does she have.

2 answers:

viva [34]4 years ago

8 0

3 nickels 9 dimes and 18 quarters

OLEGan [10]4 years ago

3 0

Sally has 3 nickels, 9 dimes, and 18 quarters

You might be interested in

What is the height of an airplane as it descends to an airport runway

stepladder [879]

The set of Real numbers consists of following sets:
- Rational numbers,
- Integers,
- Whole numbers.
And : R > I > W
The height of an airplane as it descends to an airport runway is in the whole numbers, rounded to the nearest 100 feet.
Answer: Whole number.

3 0

4 years ago

PLEASE HELP I NEED THIS ASAP<br> Find the vertex of y=x^2-7x+4

Goshia [24]

Answer:

$\mathrm{Minimum}\space\left(\frac{7}{2},\:-\frac{33}{4}\right)$

Step-by-step explanation:

$y=x^2-7x+4\\\mathrm{The\:vertex\:of\:an\:up-down\:facing\:parabola\:of\:the\:form}\:y=ax^2+bx+c\:\mathrm{is}\:x_v=-\frac{b}{2a}\\\mathrm{The\:parabola\:params\:are:}\\a=1,\:b=-7,\:c=4\\x_v=-\frac{b}{2a}\\x_v=-\frac{\left(-7\right)}{2\cdot \:1}\\\mathrm{Simplify}\\x_v=\frac{7}{2}\\\mathrm{Plug\:in}\:\:x_v=\frac{7}{2}\:\mathrm{to\:find\:the}\:y_v\:\mathrm{value}\\y_v=\left(\frac{7}{2}\right)^2-7\cdot \frac{7}{2}+4\\$

$\mathrm{Simplify\:}\left(\frac{7}{2}\right)^2-7\cdot \frac{7}{2}+4:\quad -\frac{33}{4}\\y_v=-\frac{33}{4}\\Therefore\:the\:parabola\:vertex\:is\\\left(\frac{7}{2},\:-\frac{33}{4}\right)\\\mathrm{If}\:a0,\:\mathrm{then\:the\:vertex\:is\:a\:minimum\:value}\\a=1\\\mathrm{Minimum}\space\left(\frac{7}{2},\:-\frac{33}{4}\right)$

6 0

3 years ago

Helppppppppppppppppppp

nignag [31]

I think it’s the fourth one!!

6 0

3 years ago

Find the coordinates of the midpoint of the segment connecting points (-3,-6) and ( 2,5)

marin [14]

I solved it on paper so it's easier.

But good luck ! :)

4 0

3 years ago

Susan borrowed $2,000 at a simple interest rate of 3%. She paid the money back over 1.5 years. What was the total amount of mone

dimulka [17.4K]

I got 6000 but im not 100% sure

4 0

3 years ago