2 years ago

Please I need help !!!!

Mathematics

1 answer:

frez [133]2 years ago

3 0

Answer:

The first one is c the second is b

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X + y2 = 25 x + 3y = 33

Advocard [28]

Are these 2 different questions or is this one equation

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2 years ago

At a party, 75% of the people are adults and 25% are children. What is the simplest ratio of adults to children?

mr_godi [17]

0.3:0.1

Step-by-step explanation:

first convert the % to decimals.

75%=0.75

25%=0.25

then look for a common factor and divide be that, in this case its 5.

0.75/5=0.15

0.25/5=0.5

now since these arent in the simplified form, you gotta divide again by 5.

0.15/5=0.3

0.5/5=0.1

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1 year ago

john is 15 years old. john's mom takes him and his younger soster to a football game. tickets are $22 for adults and $16 for chi

oee [108]

Answer: 54$

Explanation:

Total cost = 16 + 16 + 22
Total cost = 32 + 22
Total cost = 54

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3 years ago

Prove: If C⊂A and D⊂B then D−A⊂B−C

nalin [4]

Let $x\in D\setminus A$ , so that $x\in D$ but $x\not\in A$ . Since $D\subset B$ , it follows that $x\in B$ , and since $C\subset A$ , it follows that $x\not\in C$ , which means $x\in B\setminus C$ .

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2 years ago

The table shows the value of an account x years after the account was opened. Based on the exponential regression model, which i

lana66690 [7]

Answer:

Correct choice is B

Step-by-step explanation:

The exponential regression model can be written as exponential function

$y=a\cdot b^x.$

Then

$5,000=a\cdot b^0=a,\\ \\5,510=a\cdot b^2\Rightarrow 5,510=5,000\cdot b^2,\\ \\b^2=\dfrac{5,510}{5,000}=\dfrac{551}{500}\Rightarrow b\approx 1.05.$

Thus,

$y=5,000\cdot (1.05)^x.$

When $x=12,$ you get

$y(12)=5,000\cdot (1.05)^{12}\approx \$8,980.$

6 0

3 years ago

Read 2 more answers