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iogann1982 [59]
3 years ago
5

a test has 20 questions it award 3 points is the answer is correct and takes away 1 point if the answer is incorrect . what inte

ger represents the amount of points the student lost?​
Mathematics
1 answer:
Alex73 [517]3 years ago
6 0

Answer:

1(20-x)

Step-by-step explanation:

let the number of correct answers be x

so wrong will be 20-x

1 mark cancelled from each question

therefore,

1(20-x) will be the answer

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A bakery sold 340 mocha cupcakes in a day, which was 85% of the total number of cupcakes sold that day. How many total cupcakes
alexandr1967 [171]

Answer:

400

Step-by-step explanation:

Given:

Number of mocha cupcakes in a day = 340

Total number of cupcakes sold that day = 85\%

To find:

Total number of cupcakes sold by the bakery

Solution:

Let x denotes total number of cupcakes sold by the bakery.

According to question,

\frac{85}{100}x=340\\x=\frac{340}{85}\times  100=400

So,

Total number of cupcakes sold by the bakery = 400

4 0
4 years ago
Is this correct??? I need help I’m not sure if it’s right...
Korolek [52]

Answer:

Step-by-step explanation:

check it on a calculator to make sure it is correct because it look right to me.

7 0
4 years ago
Whats 3/5 of 6 hours :/
Colt1911 [192]
Your answer is 3.6 hours
6 0
3 years ago
The function ​P(x)equals0.35xnegative 76 models the relationship between the number of pretzels x that a certain vendor sells an
r-ruslan [8.4K]

Answer:

P(X=700) =0.35*700 -76= 169

Step-by-step explanation:

For this case we have the following profit function:

P(X) = 0.35 X -76

And we are interested on find the profit after selling 700 pretzels, so we just need to replace X=700 into the profit function like this:

P(X=700) =0.35*700 -76= 169

The profit function is on the figure attached. We see that for 0<X<217 we have negative profits, and for X>217 we will have positive values for the profit. And also we can see that for X=700 we have a profit of approximately 169.

3 0
4 years ago
Find the missing number so that the equation has infinitely many solutions.
Lana71 [14]
3x + 9= 3 (x + 3)
x + 9 + x= 2x + 9
5 0
3 years ago
Read 2 more answers
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