All categories

2 years ago

Please help!!!!!!!!!

Mathematics

2 answers:

zhuklara [117]2 years ago

7 0

Answer:

option d -1 is the answer

KiRa [710]2 years ago

5 0

Answer:

I think C (19) might be wrong though

You might be interested in

A savings account for a car is set up with an initial balance of $1500, and 250 is added every month (no other

pychu [463]

Answer:

ok so first we subtract 1500

5000-1500=3500

3500 divided by 250= 14

So it will take 14 months

Hope This Helps!!!

8 0

3 years ago

I will give brainlest

AfilCa [17]

1. X + 5
2.15-15
3. C= ( 3x9.95)+(2x14.98)
4.?
5. 12,000+500x ?idk

6 0

3 years ago

Mr. Yueng graded his students’ math quizzes.

zubka84 [21]

Answer:

7.3*

Step-by-step explanation:

do the inverse:

22/3=7.3*

*=recurring

5 0

3 years ago

Hey can you please help me posted picture of question :)

andriy [413]

The answer is the answer is C and F.

This is found by inserting the equation above into the quadratic formula or -b plus or minus the square root of b^2 - 4ac over 2a.

With that, you find that the first number is a -3, which eliminates choices B and D.

Then, solving the 4ac portion, you find that inside the square root the number is 29, which gives you the last two answer choices.

Hope this helps!

5 0

3 years ago

Of 560 marbles in a bag, 65% are red and the rest are blue. After 28 red marbles are replaced with blue ones, how many blue marb

jonny [76]

Answer: The answer is 400 blue marbles.

Step-by-step explanation: Given that there are 560 marbles in a bag, out of which 65% are red and rest are blue.

So, number of red marbles is

$n_r=65\%\times 560=\dfrac{65}{100}\times 560=364,$

and number of blue marbles is

$n_b=560-364=196.$

Now, if 28 red marbles are replaced by blue marbles, the the new number of red and blue marbles will be

$n_r^\prime=364-28=336~~~\textup{and}~~~n_b^\prime=196+28=224.$

Now, to get 65% of the marbles blue, we need to add some more blue marbles to the bag. Let 'x' number of blue marbles are added to the bag, then

$65\%\times (560+x)=224+x\\\\\Rightarrow \dfrac{65}{100}\times (560+x)=224+x\\\\\Rightarrow 13(560+x)=20(224+x)\\\\\Rightarrow 7280+13x=4480+20x\\\\\Rightarrow 7x=2800\\\\\Rightarrow x=400.$

Thus, 400 blue marbles need to be added to the bag.

5 0

3 years ago

Read 2 more answers