3 years ago

Mark got 18 out of 25 questions correct on his test what percent of the question did he do correct

Mathematics

2 answers:

Illusion [34]3 years ago

8 0

18/25=.72 or 72%
Hope that helps.

ryzh [129]3 years ago

6 0

18/25 18x4=72%
Mark had 72% on his test

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Also this question tooo pleease, PS: what topic is this Solve for x.

MrRissso [65]

This falls under geometry. The two labeled angles are congruent, which means the line segment between them (AD in the image) is a bisector of the angle at vertex A. Use the angle bisector theorem, which says that

$\dfrac{BD}{DC}=\dfrac{AB}{AC}\iff\dfrac{12}{(5+9x)-12}=\dfrac{15}{25}$

$\dfrac{12}{9x-7}=\dfrac35$

$20=9x-7$

$x=3$

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3 years ago

On Tuesday kali by five CDs on Wednesday Half of all the CDs that she had were destroyed on Thursday there were 22 left how many

pshichka [43]

Answer:

Work:

(x+5)/2=22

We will reverse this equation.

We will start by moving the 2 through inverse operations.

22x2=44

Now we have the equation

x+5=44

We will subtract 5

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4 years ago

Max has 5 red model cars one third as model cars are red how many model cars does max have

const2013 [10]

So one third means you mutilply by 3 so 3x5 is 15 model cars

6 0

3 years ago

Read 2 more answers

Solve the system of equations: y = 2x y = x2 - 3 please help asap

skelet666 [1.2K]

Answer:

y=x squared-2x-3

Step-by-step explanation:

I hope this helps

7 0

3 years ago

Which phrase describes the variable expression z+ 8?

a_sh-v [17]

9514 1404 393

Answer:

A. z increased by 8

Step-by-step explanation:

When a positive value is added, the original value (z) is increased.

z + 8 ⇔ z increased by 8

5 0

3 years ago