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2 years ago

Three times a number is equal to say when 5 is added to to the number .find the number.

Mathematics

1 answer:

sladkih [1.3K]2 years ago

5 0

Answer:

2.5

Step-by-step explanation:

3x=x+5

2x=5

x=5/2 or x=2.5

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Please be quick! I need this as soon as possible !

quester [9]

Answer: 14 people

Step-by-step explanation:

2/100 = 0.02

0.02 * 700 = 14

4 0

2 years ago

The amount of polonium-210 remaining, p(t), after t days in a sample can be modeled by the exponential function p(t) = 100e−0.00

Archy [21]

Answer:

% Po lost = 100[1 - e^(-0.005t)] %; 73.0 g

Step-by-step explanation:

p(t) = 100e^(-0.005t)

Initial amount: p(0) = 100

Amount remaining: p(t) = 100e^(-0.005t)

Amount lost: p(0) – p(t) = 100 - 100e^(-0.005t) = 100[1 - e^(-0.005t)]

% of Po lost = amount lost/initial amount × 100 %

= [1 - e^(-0.005t)] × 100 % = 100[1 - e^(-0.005t)] %

p(63) = 100e^(-0.005 × 63) = 100e^(-0.315) = 100 × 0.730 = 73 g

The mass of polonium remaining after 63 days is 73 g.

4 0

2 years ago

A. A newborn red panda weighs 100 grams. A

77julia77 [94]

Answer:

$y=100\cdot (1.07)^d$

Step-by-step explanation:

Find the expression to represent how much you would expect a cub to weigh $d$ days after it's born as exponential growth function $y=a\cdot b^d,$ where $a$ is the initial panda's weight and $b$ is the rate of growth.

A newborn red panda weighs 100 grams, then $a=100.$

A healthy cub gains about 7% of its newborn weight per day, then

$b=1+0.07=1.07$

Hence,

$y=100\cdot (1.07)^d$

8 0

3 years ago

Frank is trying to factor y^2+6y-27 . He has determined that one factor is (y + 9). What is the other factor? A. y – 27 B. y – 6

beks73 [17]

The other factor is (y - 3). If you multiply the two terms together, you will end up with $y^2+6y-27$ :

$(y - 3)(y + 9) \\ y^{2} +9y-3y-27 \\ y^2+6y-27$

5 0

2 years ago

Read 2 more answers

6 is 3% of what number?

Aleks04 [339]

✡ Answer: 200 ✡

- - Solve:

✡ First we need to find the formula to solve:
$\frac{3}{100} * x=6$

✡ Now:
x is equal to: $\frac{100*6}{3}$


✡Now we are going to multiply $100*2$ to get our answer.

- - 100*2=200 

✡Hope this helps!✡

6 0

2 years ago

Read 2 more answers

Three times a number is equal to say when 5 is added to to the number .find the number.​

Three times a number is equal to say when 5 is added to to the number .find the number.