For me i got this. A) = 16.846mg B) 24 days I am also in summer school for toronto schoolboard. I used the formula like how it said so should be good.

Step-by-step explanation:

$P(t) = Po(2)x^\frac{t}{d} \\=5(2)^\frac{7}{4} \\=16.817mg$

$320=5(2)^\frac{t}{4}\\ 64=2^\frac{t}{4}\\2^6=2^\frac{t}{4}\\6=\frac{t}{4}\\(4)6=t \\t=24 days$

8 0

3 years ago

At a grocery store to gallons of milk cost $7.20 and 5 gallons of milk cost $18 write an equation relates the total cost T to th

Gnom [1K]

Answer:

$7.20 + (5 x $18) = T

Step-by-step explanation:

7 0

3 years ago

solve the equation 5 over 4 minus 1 over x minus 2 equals -4 over 4x minus. use complete sentences to explain how you solved the

ehidna [41]

Let's translate your words into numbers and fractions. So it's
5/4 - 1/x - 2 = -4/-4.
Let's Simplify it first by eliminating -4/-4, the answer will be 1 since negative divided by negative is positive and 4 divided by 4 is 1.

5/4 - 1/x - 2 = 1

Then Get the GCF of the equation which is 4x.
Then divide the whole equation by 4x and it would be,

<span><u>5/4 - 1/x - 2 = 1
</u></span> 4x

Then it will look like this, 5x-8x-4 = 4x
Then transpose, 5x - 8x - 4x = 4
Simplify by deducting the left side. -7x = 4
Then divide both sides by -7.
Then the final answer would be x = -4/7

4 0

4 years ago

What is 8.29 is less than the product of 42 and x

yKpoI14uk [10]

42x - 8.29 <== ur expression

4 0

3 years ago