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3 years ago

Please help I will you brainliest.

Mathematics

2 answers:

sashaice [31]3 years ago

7 0

Answer:

C and D are correct about the order of operations

Aneli [31]3 years ago

7 0

Answer:

Step-by-step explanation:

Addition

+18

= 30

Subtraction

-18

= 12

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The ratio of the number of men to the number of women in a sports club is 5:2.

user100 [1]

Let the number of men and the number of women in the beginning be x and y

Now, $\sf \frac{x} {y} =\frac{5}{2} \\\\\sf=2x=5y \\\\\sf=x=\frac{5y}{2}$

Now, In 2nd case,

No. Of men=x-63 and no. Of women =y-12

Now,the ratio becomes $\frac{x-63}{y-12}=\frac{7}{4} \\\\\sf=4(x-63)=7(y-12) \\\\\sf=4x-252=7y-84 \\\\\sfPutting,\:x=\frac{5y}{2}\:in\: 4x-252=7y-84\:we\: get, \\\\\sf10y-252=7y-84 \\\\\sf=10y-7y=252-84 \\\\\sf=3y=168 \\\\\sf=y=56 \\\\\sf=\boxed{Y=56}$

Now,we have, 2x=5y

Putting the value of Y=56 in 2x=5y,we get,

$\sf 2x=5\:x\:56 \\\\\sfx=\frac{5\:x\:56}{2} \\\\\sfx=\frac{5\:x\: \cancel{56}\:\:28}{ \cancel{2}} \\\\\sf=x=5\: x\: 28 \\\\\sfx=140 \\\\\sf\boxed{x=140}$

Hence, the number of men was 140 and the no. of women was 56

Hi...I am from India.. Where are you from?

8 0

3 years ago

A baker determined the annual profit in dollars from selling pies using p(n)= 52n-0.05n where n is the number of pies sold.What

marusya05 [52]

P(400) = 52(400)-0.05(400)
= $20780

4 0

4 years ago

5. A carton of ice cream holds 5 cups of ice cream. One serving of ice cream is 1 cups.

Anna35 [415]

Answer:

5 servings

Step-by-step explanation:

1 serving is 1 cup so 5 servings is 5 cups

4 0

3 years ago

the original price of a football helmet was $78.60. If peter was given a 15 percent discount how much did he pay for the helmet

earnstyle [38]

66.81 this is the answer

4 0

4 years ago

VERY QUICK HELP!!!! A toy pyramid has the dimensions shown below. The base of the pyramid is an equilateral triangle. What is th

Elanso [62]

Answer: 102cm²

Step-by-step explanation:

Area of base = 6 × 7 ÷ 2 = 21

Area of lateral face = 6 × 9 ÷ 2 = 27

Since all of the sides of the base are equal, we can multiply the area of 1 lateral face by 3 to get the area of all the lateral faces.

27 × 3 = 81.

Now we add up the area of the base and the lateral faces.

21 + 81 = 102cm²

I am not a professional, simply using prior knowledge!

Note- It would mean the world to me if you could mark me brainliest!

4 0

3 years ago