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antiseptic1488 [7]

2 years ago

15

A student will be taking a quiz he is underprepared for and will guess every answer. The quiz consists of 10 true/false question

s. Find the probability that he guesses:

1 answer:

3241004551 [841]2 years ago

7 0

Answer:

i say the answer is either 1/2 because true or false or 5/10 because you have a 50/50 chance but im more on the 1/2

Step-by-step explanation:

mark brainlest please

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5<br> Solve for z in the literal equation - (z +11) = y.<br> 7<br> Z=

Vsevolod [243]

Answer:

z= -55 / 5-y

the line is a divided by sign you put 55 on top and the 5-y on bottom

7 0

2 years ago

Four gallons of paint are used to paint 25 chairs. If each chair used the same amount of paint, how many gallons are used to pai

ella [17]

You have to do 25 divided by 4, which is 6.35.

5 0

3 years ago

Read 2 more answers

Chase goes out to lunch. The bill, before tax and tip, was $11.90. A sales tax of 9% was added on. Chase tipped 17% on the amoun

WINSTONCH [101]

Answer:

$15.17

Step-by-step explanation:

First we calculate the value for the sales tax:

$11.90 \times \frac{9}{100 } = 1.07$

we then add the value for the sales tax ($1.07) to the initial bill:

$11.90 + 1.07 = 12.97$

We were instructed to calculate the tip after the sales tax was added so:

$12.97 \times \frac{17}{100} = 2.20$

after we will add the value for the tip to the value that we have for the bill ( this is the new value that includes the sales tax) to find the total cost:

$12.97+ 2.20 = 15.17$

<em>Therefore</em><em> </em><em>the</em><em> </em><em>total</em><em> </em><em>cost</em><em> </em><em>for</em><em> </em><em>his</em><em> </em><em>mean</em><em> </em><em>is</em><em> </em><em>$</em><em>15.17</em>

4 0

2 years ago

A building 50 ft high casts a 75-ft shadow. Sarah casts a 6-ft shadow. The triangle formed by the building and its shadow is sim

Rom4ik [11]

Make each known side into a ratio like so...
75/6
(Because 75 is the shadow casted by the building, and 6 is the shadow casted by sarah)
and 50/x
(50 is how tall the building is and sarah's height is what needs to be found)
Therefore,
75 50
---- -----
6 x

Do cross products;
50 x 6 = 75 x X
300 = 75x
Divide by 75
x = 4ft

8 0

3 years ago

Rectangle Given:1=15 m, w=6m,A=

sashaice [31]

Answer:

$90m^2 and 144 m^2$

Step-by-step explanation:

Given :

Length of the rectangle (l)=15m

Width of the rectangle (w)= 6 m

Area of the rectangle can be calculated as :

$A=l*w\\A=(15)(6)\\A=90 m^2$

Now,

Side of square (s)=12 m

Area of the square can be find:

$A=s^2\\A=12^2\\A=144 m^2$

6 0

2 years ago