1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lelechka [254]
3 years ago
13

Casey took 25 test in 135 days at this rate how many days will it take her to take 10 more test?

Mathematics
1 answer:
Dominik [7]3 years ago
3 0
It will take 54 days for her to take 10 more tests :)
You might be interested in
Rewrite the expression 2(3 - 4k) as a difference. Show your work.
Marrrta [24]

Answer:

Step-by-step explanation:

Use Distributive Property: a*(b  -c) = a*b - a*c

2(3 -4k) = 2*3 - 2*4k

             = 6 - 8k

4 0
2 years ago
The initial temperature of a cup of tea is 200ºF. The surrounding temperature is 70ºF, and the value of the constant k is 0.6.
Nezavi [6.7K]

Newton's Law of Cooling states that the change of the temperature of an object is proportional to the difference between its own temperature and the ambient temperature over time.

Therefore when expressed mathematically, this is equivalent to:

dT = - k (T – Ts) dt

dT / (T – Ts) = - k dt

Integrating:

ln [(T2– Ts) / (T1– Ts)] = - k (t2 – t1)

Before we plug in the values, let us first convert the temperatures into absolute values R (rankine) by adding 460.

R = ˚F + 460

T1 = 200 + 460 = 660 R

Ts = 70 + 460 = 530 R

ln [(T2– 530) / (660 – 530)] = - 0.6 (2 - 0)

T2 = 569.16 R

T2 = 109 ºF

Answer: After 2 hours, it will be 109 ºF

6 0
3 years ago
Help me please im in a rush
Solnce55 [7]

Answer:

a.1

b. 17

Step-by-step explanation:

So the | | around an equation makes it an absolute value which can be defined as the "distance from zero" or in other words, if a value is positive, it stays positive, and if a value is negative, it becomes positive.

|-8 + 9| = |1| = 1

|-8| + 9 = 8 + 9 = 17

7 0
2 years ago
Which graph represents the solution set to this system of equations? –x + 2y = 6 and 4x + y = 3 On a coordinate plane, a line go
erastova [34]

Answer:

On a coordinate plane, a line goes through (0, 3) and (2, 4) and another line goes through (0, 3) and (0.75, 0).

This answer almost coincide with option C. I suppose there was a mistype.

Step-by-step explanation:

The system of equations is formed by:

–x + 2y = 6

4x + y = 3

In the picture attached, the solution set is shown.

The first equation goes through (0, 3) and (2, 4), as can be checked by:

–(0) + 2(3) = 6

–(2) + 2(4) = 6

The second goes through (0, 3) and (0.75, 0), as can be checked by:

4(0) + (3) = 3

4(0.75) + (0) = 3

6 1
3 years ago
Read 2 more answers
The Smith family is shopping for a new car and they are basing their decision on color and style. Explain how many color choices
Yanka [14]
Sample response: The Smith family has 2 choices to make, color and style. By the fundamental counting principle, the product of the number of choices of color and style must equal 8. So, there could be 1 color and 8 style choices, 2 colors and 4 styles, 4 colors and 2 styles, or 8 colors and 1 style.
3 0
3 years ago
Read 2 more answers
Other questions:
  • 5 Laura says that the distance between (4, -2) and (4, -7) in the coordinate plane is
    9·1 answer
  • What is 236 divide by 6
    5·2 answers
  • 84 people take a driving test.
    12·1 answer
  • Who wanna be friends?
    11·2 answers
  • The ratio x:y is 3: 1 Which of the following statements is correct? A x is 3/4 of y B y is 1/3 of x C x is 1/3 of y D y is 1/4 o
    8·1 answer
  • Here's a graph of linear function.write the equation that describes that function
    10·1 answer
  • Keenan backed 25 cookies with 5 scoops of flour. how many scoops of flour does Keenan need in order to bake 40 cookies?Assume th
    15·1 answer
  • What are the coordinates of point H? On a coordinate plane, point H is 1.5 units to the left and 3 units up. (Negative 3, 1 and
    7·2 answers
  • Uoy clari od lobom sodo lo
    6·1 answer
  • Please helppppp
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!