All categories

3 years ago

Given that 2x + 7 equals 27 and 3x + 1 equals 28 does 2x + 7 equals 3 x + 1

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

6 0

2×+7=27
2×-7=27-7
2× =20
2/× =20/2
× = 10
2(10)+7=27

3×+1=28
3×-1=28-1=27
3× =27
3/× =27/3
× =9
3(9)+1=28

27 does not equal 28
so no

You might be interested in

Pls find m<1 TYSM! **the answer is not 40**

vovangra [49]

Step-by-step explanation:

Does that make sense to u??

7 0

3 years ago

Math question help pleaseee!

Lemur [1.5K]

A entry terrace=(8*4)+(4*4/2)*2=48 ft2
A back porch=6*6=36 ft2
A play room=14*16=224 ft2
Aside deck=3*14=42 ft2
A total=48+36+224+42=350 ft2

The area entry terrace is 48 ft2

The area total is 350 ft2

4 0

4 years ago

The formula A = 23.1 e 0.01521 models the population of a US state, A, in millions, t years after 2000.

Art [367]

Answer:

- The population in 2001 is 23.1 million

- It will reach 28.3 million in 2013

Step-by-step explanation:

Given

$A =23.1e^{0.0152t}$

Solving (a): Population in 2000.

This implies that

$t = 2000 - 2000$

$t = 0$

So, we have:

$A =23.1e^{0.0152t}$

$A =23.1e^{0.0152*0}$

$A =23.1e^{0}$

Solve the exponent

$A =23.1*1$

$A =23.1$

The population in 2001 is 23.1 million

Solving (b): When will it reach 28.3 million

This implies that:

$A =28.3$

So, we have:

$A =23.1e^{0.0152t}$

$28.3 = 23.1e^{0.0152t}$

Divide both sides by 23.1

$1.225 = e^{0.0152t}$

Take natural logarithm of both sides

$ln\ 1.225 = ln(e^{0.0152t})$

Rewrite as:

$ln\ 1.225 = 0.0152t\ ln(e)$

$ln(e) = 1$

So:

$ln\ 1.225 = 0.0152t*1$

$ln\ 1.225 = 0.0152t$

Make t the subject

$t = \frac{ln\ 1.225}{0.0152}$

$t = \frac{0.2029}{0.0152}$

$t \approx 13$

Add the value of t to 2013 to get the actual year

$Year = 2000 +13$

$Year = 2013$

It will reach 28.3 million in 2013

6 0

3 years ago

The difference of 14 and a number p

hoa [83]

Answer:

Step-by-step explPara que pueda ser una diferencia tiene que ser mayor al numero dado.

así que escogemos 15.

y el otro limite lo determinamos sumando 14+35= 49

anation:

6 0

3 years ago

Someone please answer these

mr Goodwill [35]

Answer:

1) 3

2) 1

3) 3

4) 2

5) 2

Step-by-step explanation:

please reply if you would like an explanation because my work was mental and I'd have to write it down for you

7 0

4 years ago