A teacher wanted to prevent students from guessing answers on a multiple-choice test. The teacher graded 5 points for a correct answer, 0 points for no answer, and -2 points for a wrong answer. Giselle answered 17 questions correctly, left 3 blank, and had 5 wrong answers. She also got 8 out of 10 possible points for extra credit. What was her final score?

Answer:

7.    $ 160

9.   7 ⁷/₈  scoops

10.   20 cities

Step-by-step explanation:

see attached

Answer:

The question is unclear, but if the book store sold 9 copies total, they sold 2 yesterday.

Step-by-step explanation:

I am not sure how many copies were sold in total but here is how you can solve it- Get the total amount of copies and subtract the number of copies sold in total. Then get the difference and subtract 7 from it. The difference is your answer.

Answer:

6.92820323028

Step-by-step explanation:

its more closer to 7 because 6×6=36 and 7×7=49

Answer:

5

Step-by-step explanation:

[tex]3f - {g}^{2} \\ = 3 \times 3 - ( { - 2})^{2} \\ = 9 - 4 \\ = 5[/tex]

Answer:

Ok, if we start with a number n, then we can write the consecutive numbers of n as:

n + 1

n + 2

n + 3..

etc.

Now, suppose that we have an integer x, and we want to write it as a sum of consecutive numbers.

There is a really trivial way.

We know that x + 0 = x.

now, we can write:

0 = (x - 1) + (x - 2) + ... + 1 + 0 + (-1) + (-2) + ..... + (-x + 2) + (x - 1)

Then we wrote zero as a sum of consecutive numbers.

Now we can write:

x = x + 0 = x + (x - 1) + (x - 2) + .... + 1 + 0 - 1 - 2 - ... - (x - 1) = x

Then we show that for any integer x, we can write it as a sum of consecutive integers.

Then it must work for all the integers x, then we prove that all the integers can be written as a sum of consecutive integers.

Steps to solve:

3/x+2 - √x-3 when x = 19

~Substitute

3/19+2 - √19-3

~Simplify

3/21 - √16

~Simplify

1/7 - 4

~Subtract

-3 6/7

Best of Luck!

Answer:

2 im pretty sure

Step-by-step explanation:

Answer:

The value of the expression is 4

Step-by-step explanation:

Given:

Evaluate 4 - 0.25g + 0.5h

When g = 10 and h = 5

Substitute the value of g and h into the expression

4 - 0.25g + 0.5h

= 4 - 0.25(10) + 0.5(5)

= 4 - 2.5 + 2.5

= 4

Therefore, the value of the expression is 4

Answer:

yes

Step-by-step explanation:

Put 6 into x and then slove

Answer:

we need to see the whole graph to determine the domain and range please

Step-by-step explanation:

Answer:

C. domain: (-infinity , infinity)

range: (-2 , infinity)

Step-by-step explanation:

on edge

Answer:

[tex]x= 6[/tex]

[tex]y = -2[/tex]

Step-by-step explanation:

Given

[tex]SW = 2x + y[/tex]

[tex]WC = x - 2y[/tex]

[tex]SC = 20[/tex]

Required

Determine x and y

Since W is the midpoint;

[tex]SW = WC = \frac{1}{2} * SC[/tex]

[tex]SW = WC = \frac{1}{2} * 20[/tex]

[tex]SW = WC = 10[/tex]

Substitute 10 for SW and WC

[tex]2x + y = 10[/tex] --- (1)

[tex]x - 2y = 10[/tex] ---- (2)

Make x the subject in (2)

[tex]x = 10 + 2y[/tex]

Substitute [tex]x = 10 + 2y[/tex] in (1)

[tex]2(10 + 2y) + y = 10[/tex]

[tex]20 + 4y + y = 10[/tex]

[tex]20 + 5y = 10[/tex]

Solve for 5y

[tex]5y = 10 - 20[/tex]

[tex]5y = -10[/tex]

Solve for y

[tex]y = -10/5[/tex]

[tex]y = -2[/tex]

Recall that [tex]x = 10 + 2y[/tex]

[tex]x = 10 + 2(-2)[/tex]

[tex]x = 10 -4[/tex]

[tex]x= 6[/tex]

Answer:0

Step-by-step explanation:

Adding the same number together with one being negative will result in a 0.

Answer:

dude love the image. and pizza hbu

Step-by-step explanation:

Answer:

y=3

Step-by-step explanation:

F(x)=f(-2) so go to -2 on the x axis and then find the y

Answer:

(5,4) is the distance between when you count manually or subtract.

Answer:

-8/15

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

Answer:12x

Step-by-step explanation:

Expression that represents the distance that Jeremy jumped is 12+x.

An expression is a set of terms combined using the operations +, – , x or /.

let Jeremy jumped x feet more than Samuel's distance

Then, expression to represent the above statement is:

Jeremy jumped= 12+x

hence, expression that represents the distance that Jeremy jumped is 12+x.

Learn more about expression here:

https://brainly.com/question/13947055

#SPJ2

Answer:

25

Step-by-step explanation:

When calculating a percentage of a number always multiply it by the percentage divided by 100. In this case that would be 0.05, 500*0.05=25

Answer:

[tex]40-50d[/tex]

Step-by-step explanation:

Use the distributive property:

[tex]10(4-5d)\\\\10(4)-10(5d)\\\\40-50d[/tex]

Since these are not like terms, they can't be further simplified.

:Done

Answer:

hi help me I'm new here with my latest question

Answer:

A=12

Step-by-step explanation:

Subtract -4a on both sides

you should get 26=50+2a

subtract 50 to both sides

you should get -24=2a

divide -24 by 2

Answer:

≈0.167 (2/3)

Step-by-step explanation:

hope this helps!

The answer would be eight because you would need to do 56÷7=8

Answer:

x = n + 2 + 3 + 4 + 5 + 6

Step-by-step explanation:

Answer:

Hi there!

Your answer is:

To isolate y that has a fraction, multiply by the inverse of the fraction! This is called the multiplicative inverse property!!

Y is equal to:

y = 2/3 x + 2 & 2/3

Step-by-step explanation:

Heres a break down of how to do this:

-3/4y = -1/2x -2

Multiply both sides by -4/3!

-4/3 × -3/4 = -12/12 (which equals -1!!)

y = -4/3 (-1/2x -2)

y = 2/3 x + 2 & 2/3

I hope this helps you! If you need clarification let me know!