The correct answer is b Bc he sent 25$
Answer:
I got -8/9
Step-by-step explanation:
Distribute the magical 1 in front of the parenthesis(-1) to 6x and -15 which become -6x and +15 and your new equation should be 3x + 25=2 - 6x + 15, 3x + 25=17 - 6x. Solve from their. Need more help just ask.
<h3><u>The first number, x, is equal to 33.</u></h3><h3><u>The second number, y, is equal to 23.</u></h3><h3><u>The third number, z, is equal to 46.</u></h3>
x + y + z = 102
z = 2y
x = 10 + y
Because we have values of x and z, we can plug them into the original equation to solve for y.
10 + y + y + 2y = 102
Combine like terms.
4y + 10 = 102
Subtract 10 from both sides.
4y = 92
Divide both sides by 4.
y = 23
Now that we have a value for y, we can find the value of x and z.
z = 2(23)
z = 46
x = 10 + 23
x = 33
<span>The decay of 277 mg of an isotope is described by the function
A(t)= 277e-0.019t,
where t is time in years.
To find the amount left after 64 years,
We substitute t = 64 in the expression.
</span>A(t=64)= 277e-0.019(64)
or A(t=64) = 277 * e-1.216
= 277 * 0.29
= 82 mg
Answer:
Option A, 19
Step-by-step explanation:
<u>Step 1: Find how many students are less than 69 inches</u>
65" + 66" + 67" + 68"
1 + 1 + 9 + 8
19
Answer: Option A, 19