Ask question

Ask question

All categories

2 years ago

8

An engineering student answered 81 questons correctly on a 90 question test. What percent of the question did she answer correct

ly?

1 answer:

anyanavicka [17]2 years ago

6 0

Answer:

90% of the questions she answered correctly

Step-by-step explanation:

%age = 81/90 * 100= 90 % correctness

You might be interested in

There were 567 people at a concert when a band started playing. After each song, only one-third of the people stayed to hear the

Solnce55 [7]

To write the function correctly, it is important to assign variables correctly and understand the situation of the problem clearly. For this, we let y the number of people and x as the number of songs played.

At x = 0 y = 567
at x = 1 y = 567 - 567(1/3)
at x = 2 y = 567 - 567(1/3)(1/3)
at x = 3 y = 567 - 567(1/3)(1/3)(1/3)

Therefore, the number of people left after x songs would be represented by the equation:

y = 567 - 567(1/3)x
y = 567 ( 1- x/3 )

7 0

2 years ago

Read 2 more answers

Stanley has a collection of seashells. He found 35% of his collection on Florida beaches. If Stanley has 49 seashells from Flori

m_a_m_a [10]

Answer:

The number of seashells he have in his collection all together is <u>140</u>.

Step-by-step explanation:

Given:

Stanley has a collection of seashells. He found 35% of his collection on Florida beaches.

Stanley has 49 seashells from Florida.

Now, to find the number of seashells of his collection altogether.

Let the number of seashells all together be $x.$

Percentage of seashells found on Florida beaches = 35%.

Number of seashells found on Florida beaches = 49.

Now, to get the number of seashells altogether we put an equation:

$35\%\ of\ x=49.$

⇒ $\frac{35}{100} \times x=49$

⇒ $0.35\times x=49$

⇒ $0.35x=49$

Dividing both sides by 0.35 we get:

⇒ $x=140.$

Therefore, the number of seashells he have in his collection all together is 140.

4 0

2 years ago

Calculate the maturity value for an interest-bearing note of $28,500 for 118 days at 8%

ValentinkaMS [17]

Hi I'm new so but what you have to do is add the money up than you should add it with the 118 days because i just did this quiz and i got an 100% all the way and plz put this the bralnl' yest
p.s your wolcome

8 0

2 years ago

Meredith started last week with $1,000 in her checking account. During the week, she wrote the checks below.

bazaltina [42]

Answer:

B. Meredith should have added the value of the paycheck.

Step-by-step explanation:

Meredith correctly identified the paycheck as a deposit (+), but she subtracted it from her balance when she should have added it.

5 0

2 years ago

WY bisects UV at Y. If UV=x-7 and YV = 3x-29, find UV

gayaneshka [121]

Answer:

3.2 units

Step-by-step explanation:

Given that:

WY bisects UV at Y.

$UV=x-7$ and

$YV = 3x-29$ ,

To find: UV = ?

Solution:

First of all, let us draw the diagram of the given dimensions and bisector line WY of UV.

As UV is bisected i.e. divided in two equal parts at Y by the line WY

Therefore, UY = YV

UV = UY+YV

OR

<em>UV = 2 YV</em>

Now, let us put the given values to solve for $x$ :

$x-7=2 \times (3x-29)\\\Rightarrow x-7=2 \times 3x-2 \times 29\\\Rightarrow x-7=6x-58\\\Rightarrow 6x-x=58-7\\\Rightarrow 5x=51\\\Rightarrow \bold{x =10.2 }$

Now, we are given that:

$UV=x-7$

Putting value of $x$ as solved in above step to get the value of UV:

$UV=10.2-7\\\Rightarrow \bold{UV=3.2}$

So, answer is <em>UV = 3.2 units</em>

3 0

2 years ago