3 years ago

How can i solve the equation 4(2x+7)

2 answers:

6 0

This is an expression not an equation because it has no equal sign.

Distribute 4 over parentheses
4(2x+7)=4•2x+4•7=8x+28

myrzilka [38]3 years ago

3 0

Distribute so times what's outside by what's inside so 4×2x=8x and 4×7=28 then get x by itself by dividing on both sides 28÷8=3.5 your answer is x=3.5

You might be interested in

Width of a rectangle if the area is 60 cm2 and the length is 15 cm

Sedaia [141]

Width is 4

60 divide by 15 is 4.

6 0

3 years ago

A bag contains 6 blue marbles, 4 red marbles, and 2 yellow marbles. What is the probability of selecting a blue marble, replacin

sladkih [1.3K]

I think there is a .5 percent chance i added all numbers and divided by 6[the blue marbles]

8 0

4 years ago

Read 2 more answers

Element X is a radioactive isotope such that every 5 years, its mass decreases by half.

Verdich [7]

Answer: 24 grams of element would remain.

Step-by-step explanation:

Exponential function for decay:

$f(x)=Ab^{\frac{x}{n}}$ ....(i) , where A = initial value , b = decay factor, x = time , n= time per period

As per given,

A = 569 grams , $b=\dfrac12$

n= 5 years, t = 23 years

Put all values in (i) , we get

$f(23)=590(\dfrac12)^{\frac{23}{5}}\\\\\\=590\times 0.0412346222117\\\\=24.3284271049\approx 24$

Hence, after 23 years , 24 grams of element would remain.

6 0

3 years ago

Convert the numeral to a numeral in base ten. 2331nine

BaLLatris [955]

Answer:

Step-by-step explanation:

Converting 2331 to base 10.

2*93=1458

3*92=243

3*91=27

1*90=1

Adding all to get Ans=172910

4 0

4 years ago

HELP ASAP 25 POINTS!!!!!!! What are the solutions of the equation x^2 + 4x + 4 = 25

m_a_m_a [10]

X=3 and X=-7 . Hope this helps:)

8 0

3 years ago