All categories

3 years ago

3x+9 -------- how do I solve this? 4x+12

Mathematics

2 answers:

OLEGan [10]3 years ago

7 0

$

Answer :$ $(3x+9)/(4x+12) \\ =3(x+3)/4(x+3) \\ =3/4 \\ (=0.75)$

Reptile [31]3 years ago

5 0

Put common terms in evidence and simplify:

$\boxed{\frac{3x+9}{4x+12}=\frac{3(x+3)}{4(x+3)}=\frac{3}{4}}$

You might be interested in

Approximately 85% of persons age 70 to 84 live in their own household and are income-qualified for home purchases.

miv72 [106K]

Answer:

The probability that exactly two of the four live in their own household and are income-qualified is = .0975

Step-by-step explanation:

Given -

Approximately 85% of persons age 70 to 84 live in their own household and are income-qualified for home purchases.

Probability of sucess ( p ) = 85% =.85

Probability of failure ( q ) = 1 - .85 =.15

n = 4

From combination of n events taking r sucess we use binomial distribution

$P(X = r) = \binom{n}{r}p^{r}q^{n-r}$

where , r = 2

the probability that exactly two of the four live in their own household and are income-qualified is =

$P(X = 2) = \binom{4}{2}0.85^{2}0.15^{4 - 2}$

= $\frac{4!}{(2!)(2!)} \times 0.7225 \times .0225$

= $6 \times 0.7225 \times .0225$

= .0975

4 0

3 years ago

On a trip you had to change your money from dollars to British pounds. You got 560 pounds for 800 dollars. What is a unit rate t

Oksanka [162]

If we got 560 pounds for 800 dollars and x pounds for 1 dollar, this means that x = 560*1/800 <=> x = 56/80. Performing the calulation we get that x = 0.7

6 0

3 years ago

Read 2 more answers

Four students in Ms. Alton's class shared the correlation coefficients derived from their data as follows: Student A: r = –0.87

faltersainse [42]

Answer:

Student A

Step-by-step explanation:

just did the assignment

8 0

3 years ago

Read 2 more answers

Can you please help me with this worksheet (this is due tomorrow)

Flauer [41]

Jennifer
1. 6
2.26
3.42
4.82

erika
1.7 (erika wrong)
2.15 (right)
3.23 (right)
4.43 (right)

6a. 6 is the right one
2(6+2)-7=9

8 0

3 years ago

Jill and Lori each walk in a straight line between two points. Using the points on a map they created, Jill will start at (–2,–4

Olenka [21]

We develop the equation for each of the tracks that will be walked through by Jill and Lori.
Jill: y - 2 = ((2 - -4)/(4 - -2))(x - 4) ; y = x - 2
Lori: y - 6 = ((-4 - 6)/(4 - -1))(x + 1); y = -2x + 4
The intersection of these equation is (2,0).

6 0

3 years ago