answer.
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
Anettt [7]
2 years ago
6

Evaluate 8a-1+0.5b8a−1+0.5b8, a, minus, 1, plus, 0, point, 5, b when a=\dfrac14a=

Mathematics
2 answers:
professor190 [17]2 years ago
7 0

Answer: 6

Step-by-step explanation:

Given the following expression:

8a-1+0.5b

You need to substitute the given values of "a" and "b" into the expression. Notice that these values are:

a=\frac{1}{4}\\\\b=10

Then;

 8a-1+0.5b=8(\frac{1}{4})-1+0.5(10)

Now you must solve the multiplications:

=\frac{8}{4}-1+5=2-1+5

The final step is to add the numbers. Therefore, you get the following answer:

=6

mart [117]2 years ago
5 0

Answer: 6

Step-by-step explanation:

You might be interested in
Nia plans to put enough money in the bank each week for 100 weeks so that the amount in the bank is always proportional to the w
kobusy [5.1K]
Nia will have $250 in the savings account
6 0
2 years ago
Read 2 more answers
The tower below is made up of a square pyramid on top of a rectangular prism. What is the
Doss [256]

Answer:

The answer is 581 square centimeters

Step-by-step explanation:

5 0
2 years ago
the community food bank has 750 meals to distribute over a 12 hour period. They need to save at least 50 of the meals for the vo
Anit [1.1K]
Since we must save 50 meals for volunteers, the real amount we are giving away is 700 meals in 12 hours.

700/12 = 58.3333...

10*58.333.. = 583.333....

Since we can't serve 1/3 of a person, we take 583. Hope this helps!
8 0
2 years ago
HELP MEEEEEEEEEE Package A contains 3 birthday cards and 2 thank-you notes and costs $9.60. Package B contains 8 birthday cards
hodyreva [135]

Answer:

Each birthday card costs $2.2 ⇒ answer c

Step-by-step explanation:

* Lets explain how to solve the problem

- Package A contains 3 birthday cards and 2 thank-you notes

- It costs $9.60

- Package B contains 8 birthday cards and 6 thank-you notes

- It costs $26.60

- x represents the cost of birthday card and y represents the cost of

 thank-you note

* Lets change these information to two equations

∵ x represents the cost of each birthday cards

∵ y represents the cost of each thank-you notes

∵ Bag A contains 3 birthday cards and 2 thank-you notes

∵ Bag A costs $9.60

∴ 3x + 2y = 9.60 ⇒ (1)

∵ Bag B contains 8 birthday cards and 6 thank-you notes

∵ Bag B costs $26.60

∴ 8x + 6y = 26.60 ⇒ (2)

* Lets solve this system of equations to find x and y

- Multiply equation (1) by -3 to eliminate y

∵ -3(3x) + -3(2y) = -3(9.60)

∴ -9x - 6y = -28.8 ⇒ (3)

- Add equations (2) and (3)

∴ -x = -2.2

- Multiply both sides by -1

∴ x = 2.2

∵ x represents the cost of each birthday cards

∴ The cost of each birthday card is $2.2

* Each birthday card costs $2.2

6 0
2 years ago
Read 2 more answers
At a large company, employees can take a course to become certified to perform certain tasks. There is an exam at the end of the
WINSTONCH [101]

Answer:

A Type II error is when the null hypothesis is failed to be rejected even when the alternative hypothesis is true.

In this case, it would represent that the new program really increases the pass rate, but the sample taken is not enough statistical evidence to prove it. Then, the null hypothesis is not rejected.

The consequence is that the new method would be discarded (or changed) eventhough it is a real improvement.

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • Margie is packing 108 small boxes into a large carton. the small boxes will fill all of the space inside the large carton. Each
    12·1 answer
  • Abbie is 5 years older than twice her sister's age. Abbie is 25 years old. Which equation can be used to find her sister's age?
    11·1 answer
  • What's a mural with an area of 18m2
    12·1 answer
  • Thomas solved the equation by completing the square. x2−10x+27=0 <br> show work
    12·2 answers
  • a bike shop rents bikes with Heights ranging from 18 in to 26 inches. The shop says that the height of the bike should be about
    8·1 answer
  • A tourist drives 70 miles along a scenic highway and then takes a 7-mile walk along a hiking trail. The average velocity driving
    13·1 answer
  • The measure of angle BAC can be calculated using the equation sine super negative 1 (StartFraction 3.1 Over 4.5 EndFraction) equ
    15·1 answer
  • a jar contains ten black buttons and six brown buttons. If nine buttons are picked at random, what is the probability that exact
    7·1 answer
  • In one city, 75 percent of residents report that they regularly recycle. In a second city, 90 percent of residents report that t
    12·1 answer
  • A survey asked students at Wilson Academy which status they would prefer—to be happy, healthy, or rich—and how much pressure the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!