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3 years ago

I need help on this one

Mathematics

2 answers:

Llana [10]3 years ago

8 0

The answer is B you take 180 subtract it from 105 and you get 75 then you add plus 24 which is 99 then do 180-99 and that’s how you get x=81

zalisa [80]3 years ago

7 0

Answer:

Step-by-step explanation:

please give brainliest

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It took Mary 37 minutes to make 8 posters wrote the statement as a rate

Mrac [35]

Answer:

1 for 4.625 mins

Step-by-step explanation:

8 0

3 years ago

Is 11 1/2 divided by 2 1/4 equals 6 and overestimate or underestimate. Explain

topjm [15]

Answer: 11 1/2 ÷ 2 1/4 is not equal to 6, it is an overestimate.

Step-by-step explanation:

11 1/2 ÷ 2 1/4 = 6

First step: convert the improper fraction to a proper fraction

11 1/2= 23/2

2 1/4= 9/2

The question can be written as:

23/2 ÷ 9/2

=23/2 × 2/9 ( 2 cancels out 2)

= 23/9

=2.56

Therefore, 11 1/2 ÷ 2 1/4 is not equal to 6, it is an over estimate.

I hope this helps.

8 0

4 years ago

Explain your answer !! Have a nice day Will give braisnlt

SashulF [63]

Answer:

The equations are:

$4H + 3P = 13.75$

$2H + 5P = 11.25$

$Hotdog = 2.50$

$Pretzel = 1.25$

Step-by-step explanation:

Let:

$H = hot\ dog$

$P =Pretzel$

For Tina:

$4H + 3P = 13.75$

For Doug:

$2H + 5P = 11.25$

Solving for the price of both items:

We have:

$4H + 3P = 13.75$ --- (1)

$2H + 5P = 11.25$ --- (2)

Multiply (2) by 2

2 * ( $2H + 5P = 11.25$ )

-------------------

$4H + 10P = 22.50$ --- (3)

Subtract (3) from (1)

$4H + 3P = 13.75$

$4H + 10P = 22.50$

----------------------

$4H - 4H + 3P - 10P = 13.75 - 22.50$

$3P - 10P = 13.75 - 22.50$

$-7P = -8.75$

Solve for P

$P = \frac{-8.75}{-7}$

$P = 1.25$

Substitute 1.25 for P in (2)

$2H + 5P = 11.25$

$2H + 5 * 1.25 = 11.25$

$2H + 6.25 = 11.25$

Collect Like Terms

$2H = 11.25-6.25$

$2H = 5$

Solve for H

$H = \frac{5}{2}$

$H = 2.50$

5 0

3 years ago

Math when is the sum of two negative mixed numbers an integer

FrozenT [24]

The short answer is: when their fractions add up to full integers.

For examples, two halves make up a whole, or

$\frac{1}{2} + \frac{1}{2}=1$

so the mixed numbers with those will add up to full integers:

$-12\frac{1}{2} + (-3\frac{1}{2})=(-(12+3+1)=-16$

but if they don't add up to an interger, the whole sum won't be an integer:

$-12\frac{3}{4} + (-3\frac{3}{4})=(-(12+3+1\frac{1}{2})=-16\frac{1}{2}$

5 0

3 years ago

1(4 – 22); 2 – 2x I don’t get this question can someone help me

sertanlavr [38]

Answer:

i dont know if this is what u wanted but it wasn't really specified

Step-by-step explanation:

1(4 – 22); 2 – 2x

simplified:

−18;−2x+2

8 0

3 years ago