2 years ago

I need help on this asap

Mathematics

2 answers:

mestny [16]2 years ago

4 0

The answer for this question is $315

guapka [62]2 years ago

3 0

Answer:

the answer to this is

$315

You might be interested in

Rachel has taken 6 tests so far and has received scores of 83%, 92%, 79%, 88%, 89%, and 95%. What must Rachel receive on her sev

Vinil7 [7]

Let the score on her seventh test be "x".

SO,

$\frac{83+92+79+88+89+95+x}{7} =90\\\\ \frac{526+x}{7}=90\\\\ 526+x=630\\\\x=630-526\\\\ \boxed{x=104}$

∴ He must get 104% on his seventh test to get an average score of 90%

5 0

3 years ago

Read 2 more answers

What does 5 (7) represent

Brrunno [24]

Answer:

5(7) means 5x7 because between 5 and (7) is an invisable x or * which means multiply 5 and 7 so the answer is 35.

Step-by-step explanation:

8 0

4 years ago

in the final event of a track meet, 6 runners run a 100 meter dash. A) How many possible arrangements are there for the medal wi

ohaa [14]

6 runners, 3 medals, how many ways to give them? well, runner say 2 could get gold or not, bronze or not and silver or not, and so can any other runnner, and the order "does matter", it makes a distinction, thus, is a Permutation

$\bf _nP_r=\cfrac{n!}{(n-r)!}\qquad \qquad _6P_3=\cfrac{6!}{(6-3)!}$

3 0

3 years ago

Read 2 more answers

What is the qoutient of -18÷ (-1 over 6) ?

topjm [15]

...
When you divide a negative integer by a negative, it becomes a positive. Also, when you have a problem like this...-18/-1/6, you switch the -1 and 6, leaving us -18/-6, but also, in the process of flipping the two numbers, we change to -18*-6. Henceforth...-18/(-1/6)=-18*-6=108.

6 0

3 years ago

Read 2 more answers

X varies directly as y, and x = 153 when y = 9. Find x when y = 13.

goblinko [34]

X = 153 = 17* 9, so when <span>y = 13, x= 21*13= 273

x= 17 18 19 20 21
y= 9 10 11 12 13</span>

6 0

3 years ago