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3 years ago

13

What is the ratio of students that own a cell phone to the the students that don't

2 answers:

Varvara68 [4.7K]3 years ago

8 0

thats about right:)))))))))))))))))

Ray Of Light [21]3 years ago

7 0

10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000:10 in a middle school case.

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Solve for x<br><img src="https://tex.z-dn.net/?f=-12%3D%5Cfrac%7Bx%5E%7B2%7D%20%7D%7B3%7D" id="TexFormula1" title="-12=\frac{x^{

jekas [21]

Answer:

install app photomath

4 0

3 years ago

a seed company says that 4 out of every 5 of its seeds will grow.if Madi plants 40 of these seed, then how many seeds is Madi ex

Delicious77 [7]

Answer:

38 seeds will grow

Step-by-step explanation:

4/5 = 80%

80% = .8

40*0.8 = 32

5 0

3 years ago

Which list of ordered pairs represents solutions to x+y=2?

lbvjy [14]

Answer:

(-4, 6), (0, 2), (4, -2)

Step-by-step explanation:

You just need to guess and check.

(-4,6) → -4 + 6 = 2 ✔

(0,2) → 0+2 = 2 ✔

(4,2) → 4 + 2 = 6

(4, -2) → 4 - 2 = 2 ✔

(-4,-6) → -4 - 6 = -10

The correct answer is the second list (-4, 6), (0, 2), (4, -2)

7 0

3 years ago

what algorithm (rule) will produce the correct result for the sum "a+b" where a and b each represent any rational number.

Leokris [45]

Answer:

To find the sum of a + b where a and b are rational number.

1. when a and b are natural numbers

just add them . for example a =3, b=8

then ,a + b = 11

2. When a and b are whole numbers,

simply add them . for example a= 0, b=8

a+ b = 0 + 8= 8

3. When a and b are integers

for example, a =-1 b=8,

a+ b= -1+ 8 =7,

a=-2, b= -8

a+ b= -2-8=-10

a= -6 , b=2

a+ b= -6 + 2= -4

a= 8, b= -2

a+ b= 8 +(-2) =6

I have written this because Rational number = [Integers{Whole number(Natural number)}]

now when a= Any fraction= $\frac{p}{q}$ and b = Any fraction= $\frac{u}{v}$

now ,

$\frac{p}{q} + \frac{u}{v}$

Find L.C.M of q and v

= if q and v are Co-prime , just multiply them to find their L.C.M.

For example 14,9. LCM=14×9=126

Otherwise, Find factors of q and v . Then take out common factors first and then multiply the remaining with with common factors.For example

q=12 and v=18

12 =2×2×3

18=2×3×3

common factor =2,3

non common=2,3

L.C.M= 2×2×3×3=36

Suppose LCM of q and v = r

then , $\frac{p}{q} + \frac{u}{v}$

= $\frac{{\frac{r}{q}}\times p+{\frac{r}{v}\times u}}{r}\\$

= ${{\frac{r}{q}}\times p+{\frac{r}{v}\times u}} = k$

then ,

a + b= $\frac{k}{r}$

5 0

3 years ago

Shawna and her best friend Keisha go shopping. The function p(t) = 3x +2x-4x2+ 21 represents how much money each girl spent base

NNADVOKAT [17]

Answer:

$\$30$

Step-by-step explanation:

we have

$p(t)=3x+2x-4x^{2}+21$

<em>Find the amount of money that each girl spent</em>

For t= 2 hours

$p(2)=3(2)+2(2)-4(2)^{2}+21$

$p(2)=10-16+21$

$p(2)=\$15$

<em>Find the amount of money that they spend together</em>

Multiply by 2 the amount of money that each girl spent

$(2)\$15=\$30$

3 0

3 years ago