At camp last summer the ratio of boys to girls was 3:5 if there was a total of 160 campers how many girls were there

Answers

Answer 1

Answer: I believe there is 100 girls or something close to that.

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Shirabi spent $208 on a sewing machine to make purses. She spends a total of $10 on thread, fabric, and accessories for each purse and plans to charge $36 for each purse. The equation represents her break-even point, when x represents the number of purses sold.208 + 10x = 36xHow many purses must she sell in order to break even?
A spinner is split into 20 equal sections and numbered from 1 to 20 find P(even and odd)
Please answer correctly!! I’ll mark as brainliest! No links no fake answers
Solve. 8/x + 15/x^2 = -1A. x= 5,-3 B. x= -5,-3 C. x= -5,3 D. x=5,3

How do I find BCD? Please help

Answers

Hi,
BCD and ECF are opposite angles and so are equal. If they are equal, then their equations are equal, and if their equations are equal, you can set the equations against each other to find x. See below, and hope this helps!

(10x - 20)° = (8x + 4)°

This is basic algebra. (I'm taking off the degree sign for now to make it simpler, but be sure to add it to your answer at the end.) Group like terms.

10x - 20 = 8x + 4
2x = -16
x = -8

Once you've found "x", plug "x" into the equation for BCD and solve. I'll get you started:

(10 × -8) - 20

all you need to do is add the angles up and you have your answer

An accident victim gets 0.5 pints (pt) of blood and 750 milliliters (mL) of an intravenous (IV) solution. What is the ratio of blood to the intravenous solution in lowest terms?

Answers

1 pt= 437.1765 mL
0.5 pt= 0.5x437.1765= 218.58825 mL
Ratio = 218.58825/750= 0.2915 % =29.15%

Simplify the polynomial (3a^2+4a+25) - (2a^2+4a-5)

Answers

Answer:

The polynomial simplified would be a^2 + 30

I hope this helps you:))

P.S. Might I recommend a good online calculator for these types of problems. It's called Symbolab. I use it every day and it's a lifesaver. It shows the step-by-step and has a plethora of different actions like simplifying, inverse, and line.

Leah has 6 1/4 yards of ribbon to make bows. Each bow is made from a piece of ribbon that is 1/3 yard long. What is the maximum number of complete bows Leah can make?

Answers

Leah can make 18 complete bows. She will then have 1/4 yards of fabric left over. This is true because there are 3 thirds to a whole and there are 6 complete yards of ribbon. 3 x 6 = 18. Then we get left with an extra 1/4 yards of fabric because 1/4 is less and a third.

Write a solution in Interval Notation - (you don't have to help me on all, 1 or 2 is fine c: )1) | m | -2 > 0

2) | x - 4 | - 3 > 5

3) | 6 + 9x | ≤ 24

4) | 1 - 5a | > 29

Answers

QUESTION 1

The given inequality is

$|m|-2>0$

We group like terms to get,

$|m|>2$

This implies that,

$-m>2$ or $m>2$ .

We simplify the inequality to get,

$m<-2$ or $m>2$ .

We can write this interval notation to get,

$(-\infty,-2)\cup (2,+\infty)$ .

QUESTION 2

$|x-4|-3\:>\:5$ .

We group like terms to get,

$|x-4|\:>\:5+3$ .

$|x-4|\:>\:8$

We split the absolute value sign to get,

$-(x-4)\:>\:8$ or $x-4\:>\:8$

This implies that,

$x-4\:<\:-8$ or $x-4\:>\:8$

$x\:<\:-8+4$ or $x\:>\:8+4$

$x\:<\:-4$ or $x\:>\:12$

We can write this interval notation to get,

$(-\infty,-4)\cup (12,+\infty)$ .

QUESTION 3

The given inequality is

$|6+9x|\leq 24$

We split the absolute value sign to obtain,

$-(6+9x)\leq 24$ or $(6+9x)\leq 24$

This simplifies to

$6+9x\ge -24$ and $6+9x\leq 24$

$9x\ge -24-6$ and $9x\leq 24-6$

$9x\ge -30$ and $9x\leq 18$

$x\ge -(10)/(3)$ and $x\leq 2$

$-(10)/(3)\leq x\leq2$

We write this in interval form to get,

$[-(10)/(3),2]$

QUESTION 4

The given inequality is

$|1-5a|>29$

We split the absolute value sign to get,

$-(1-5a)>29$ or $1-5a>29$

This simplifies to,

$1-5a\:<\:-29$ or $1-5a\:>\:29$

This implies that,

$-5a\:<\:-29-1$ or $-5a\:>\:29-1$

$-5a\:<\:-30$ or $-5a\:>\:28$

$a\:>\:6$ or $a\:<\:-(28)/(5)$

We write this in interval notation to get,

$(-\infty,-(28)/(5))\cup (6,+\infty)$

You buy painting supplies for $12, and you charge $3 per person to paint faces. how many faces will you need to paint to earn $15 in profit?

Answers

Answer:

You need to paint 9 faces to earn $15 in profit.

Step-by-step explanation:

Given : You buy painting supplies for $12, and you charge $3 per person to paint faces.

To find : How many faces will you need to paint to earn $15 in profit?

Solution :

Let x represent the number of faces painted.

According to question,

$3x - 12 = 15$

Solving equation,

$3x= 15+12$

$3x=27$

$x=(27)/(3)$

$x=9$

Therefore, You need to paint 9 faces to earn $15 in profit.

Investment = $12

For $15 profit, I have to earn, 12+15 = $27

Charge for 1 person(for paint faces) = 3

multiply by 9,

9 persons= $27

So, 9 person is the answer.

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