Ask question

Ask question

All categories

VladimirAG [237]

3 years ago

15

A woman bought some large frames for $15 each and some small frames $5 each at a close out sale. If she bought 23 frames for $19

5, find how many of each type she bought

1 answer:

bearhunter [10]3 years ago

8 0

Let X be large frames and Y be small frames.
X+Y=23
15X+5Y=195 or 3X+Y=39

Thus 2x=16
so X=8
so Y=15

You might be interested in

If the cone and the square pyramid have the same volume, find the radius of the cross section of the cone. Round your answer to

nikdorinn [45]

Answer: R= 4.91

Pi r^2= 8^2

Pi r^2= 8.7^2

Pi r^2= 75.69

r^2=24.09

R= 4.91

6 0

3 years ago

In the expression -12+m-9m+13, name the coefficients

torisob [31]

Answer:

-12

1

9

13

Step-by-step explanation:

its just the numbers in front of the variables

4 0

3 years ago

Read 2 more answers

Paul is building a bridge for a school project and wants to make a right triangle out of three popsicle sticks that measure 8 cm

STatiana [176]

Answer:

No he can't

Step-by-step explanation:

8² = 64

10² = 100

8² + 10² = 164

18² = 324

For a right triangle A²+B²=C²

4 0

2 years ago

PLEEAASEE HELP!!! Suppose Q and R are independent events. Find P(Q and R) if P(Q) = 4/5 and P(R) = 4/11.

kari74 [83]

The answer is C. 16/55 because P(Q and R) = P (Q) . P (R) (for independent events Q and R)

So, the prob. is 4/5 * 4/11 = 16/55 = D.

5 0

3 years ago

Read 2 more answers

The number of males in the classroom is three more than twice the number of females. Of the total number of students is 57, how

dolphi86 [110]

Answer:

Step-by-step explanation:

Given that the number of males in the classroom is three more than twice the number of females.

the total number of students is 57

Let x be the no of males then no of females = $57-x$

Also we have 3 more than twice no of females as

$2(57-x)+3$

This equals x

$2(57-x)+3=x\\114-2x+3=x\\3x=117\\x=39$

No of males = 39, no of females = 18

6 0

3 years ago