3 years ago

Write and then evaluate the expression. Then, check all that apply.

Mathematics

2 answers:

velikii [3]3 years ago

7 0

I believe the answer is 43

Vera_Pavlovna [14]3 years ago

3 0

Answer is 43 I think

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Lola purchased two pairs of shoes that each cost $20.00. She then purchased a pair of jeans for $14.50 and a shirt for $8.25. Wh

crimeas [40]

Answer: $62.75

Step-by-step explanation:

1.)$20.00 x2= $40.00

2.)$14.50 +$8.25= $22.75

3.)$40.00 +$22.75= $62.75

Hope this helps

5 0

4 years ago

Isaac had lots of candy. He ate the same number of pieces each day, and the amount remaining can be modeled by the equation y =

zlopas [31]

Answer:

1. he eats 5 per day (5 less every day)

2. he starts with 83 pieces of candy

3. 53

4. on day 11

Step-by-step explanation:

1. self explanatory

2. self explanatory

3. 6*-5=-30 -30+83=53

4. put y as 28

28=-5x + 83 now solve for x

subtract 83 both sides

-55=-5x

divide -5 from both sides

11=x

6 0

3 years ago

Write an expression for the sequence of operations described below.

viktelen [127]

Answer:

5^9

Step-by-step explanation:

5x5x5x5x5x5x5x5x5

= 1953125

3 0

4 years ago

12,781 rounded to the nearest hundred

Vitek1552 [10]

12,800

cause the hundreths place is at the 7

and the number is 781

if its 50 or over you round up 81 is over so youll make it 800

8 0

3 years ago

Read 2 more answers

Soon after taking an aspirin, a patient has absorbed 320 mg of the drug. after 3 hours, only 40 mg remain. find an exponential m

Anastaziya [24]

The equation will be of the form:
$A(t)= A_{0} e^{rt}$
where A is the amount after t hours, and r is the decay constant.
To find the value of r, we plug the given values into the equation, giving:
$40=320e^{3r}$
Rearranging and taking natural logs of both sides, we get:
$ln\ 0.125=3r$
$r=\frac{ln\ 0.125}{3}=-0.693$
The required model is:
$A=A _{0} e^{-0.693t}$

3 0

3 years ago