Ask question

Ask question

All categories

2 years ago

15

Dani wants to spend less than $25 on a birthday present for her friend. If she buys a necklace for $9.50, how many pairs of earr

ings, e, can she buy for $3.75 each without exceeding her budget? Enter your answer in the box.

1 answer:

Archy [21]2 years ago

3 0

Answer:

4

Step-by-step explanation:

25- 9.5 is 15.5 and 4 ×3.75 is 15 you would have still have .5 cents

You might be interested in

) Set up a double integral for calculating the flux of F=3xi+yj+zk through the part of the surface z=−5x−2y+2 above the triangle

Fynjy0 [20]

The surface (call it $S$ ) is a triangle with vertices at the points

$x=0,y=0\implies z=2\implies(0,0,2)$

$x=0,y=2\implies z=-2\implies(0,2,-2)$

$x=2,y=0\implies z=-8\implies(2,0,-8)$

Parameterize $S$ by

$\vec s(u,v)=(1-v)(2,0,-8)+v\bigg((1-u)(0,2,-2)+u(0,0,2)\bigg)=(2-2v,2v-2uv,-8+6v+4uv)$

with $0\le u\le1$ and $0\le v\le1$ . Take the normal vector to $S$ to be

$\vec s_v\times\vec s_u=(20v,8v,4v)$

Then the flux of $\vec F$ across $S$ is

$\displaystyle\iint_S\vec F(x,y,z)\cdot\mathrm d\vec S=\int_0^1\int_0^1\vec F(x(u,v),y(u,v),z(u,v))\cdot(\vec s_v\times\vec s_u)\,\mathrm du\,\mathrm dv$

$=\displaystyle\int_0^1\int_0^1(6-6v,2v-2uv,-8+6v+4uv)\cdot(20v,8v,4v)\,\mathrm du\,\mathrm dv$

$=\displaystyle8\int_0^1\int_0^1(11v-10v^2)\,\mathrm du\,\mathrm dv=\boxed{\frac{52}3}$

8 0

3 years ago

What is the value of x in the proportion (x - 1)/5 = (4x + 2)/35?

nirvana33 [79]

Answer:

x=3

Step-by-step explanation:

1. cross multiply to get

5(4x+2)= 35(x-1)

2. distribute

20x+10=35x-35

3. combine like terms

45=15x

4. divide :)

3=x

6 0

3 years ago

Read 2 more answers

an entertainment firm offers several DJ choices and light show that range in price based on the rental time period. the DJ's cos

Mnenie [13.5K]

Answer:

219 + 159 <= x <= 369 + 309

378 <= x <= 678

Step-by-step explanation:

4 0

1 year ago

A group of students want to make a flag. Someone want it to be a rectangle, some a kite, and others a rhombus. Can the crew make

g100num [7]

Answer:

yes the crew can make a flag using all three shapes

6 0

2 years ago

Questions 2,3, and 4 please

Mice21 [21]

2. 7 to 5 and a total of 96 in this radio there is a total of 12 so divide 96 by 12 to find out how many sets of 7:5 are in 96 stickers
96/12= 8
It's wants large stickers
7×8= 56 large stickers

7 0

2 years ago