Ask question

Ask question

All categories

2 years ago

11

Sarah had a bag of 16 marbles that are green and yellow. The number of yellow marbles is 2 less than double the number of green

marbles.

2 answers:

Alex777 [14]2 years ago

8 0

Answer:

10 yellow marbles

Step-by-step explanation:

(y is the amount of yellow marbles)

y=2x-2

y=2(6)-2

y=12-2

y=10

Naya [18.7K]2 years ago

7 0

Answer:

10 yellow marbels

Step-by-step explanation:

You might be interested in

Please I need help !!!

makkiz [27]

Answer:

Step-by-step explanation:

4 and 6

5 0

2 years ago

32. A data set is normally distributed

KiRa [710]

Answer:

93.1%

Step-by-step explanation:

7 0

2 years ago

Show the formula for finding the area of a parallelogram

liq [111]

Base times height equals area of a parallelogram

8 0

2 years ago

1.Arsenic-74 is used to locate brain tumors. It has a half-life of 17.5 days. 90 mg wereused in a procedure. Write an equation t

Sophie [7]

$1)\text{ }N_t\text{ = 90\lparen}\frac{1}{2})^{\frac{t}{17.5}}$

2) 5.625 mg will be left

Explanation:

1) Half-life = 17.5 days

initial amount of Arsenic-74 = 90 mg

To get the equation, we will use the equation of half-life:

$\begin{gathered} N_t\text{ = N}_0(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}} \\ where\text{ N}_t\text{ = amount remaining} \\ N_0\text{ = initial amount} \\ t_{\frac{1}{2}\text{ }}\text{ = half-life} \end{gathered}$ $N_t\text{ = 90\lparen}\frac{1}{2})^{\frac{t}{17.5}}$

2) we need to find the remaining amount of Arsenic-74 after 70 days

t = 70

$\begin{gathered} N_t=\text{ 90\lparen}\frac{1}{2})^{\frac{70}{17.5}} \\ N_t\text{ = 5.625 mg} \end{gathered}$

So after 70 days, 5.625 mg will be left

4 0

8 months ago

Which is equal to (2+3i)+(-4+i)?<br> A, -2-4i<br> B, -2-2i<br> C, -2+2i<br> D, -2+4i<br> E, 6+4i

inysia [295]

Answer:

D. -2+4i

Step-by-step explanation:

just combine like terms :)

6 0

2 years ago

Read 2 more answers