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3 years ago

Please help me with just this one question. 7th grade math

Mathematics

1 answer:

GREYUIT [131]3 years ago

6 0

Answer:

B. y= (2x/3)+4

Step-by-step explanation:

i picked a point and plugged the x and y into the equation to see if it would work

(example: $(8)=\frac{2(6)}{3} +4\\$ )

then i did the same thing with a different point on the graph to make sure it was correct :)

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A piggy bank contains 36 coins that consists of dimes and quarters totaling $5.85 how many quarters are in the piggy bank in you

Lesechka [4]

The main idea here is to "translate" the words into maths.
First we need to identify the unknowns and label these.

We need to know the number if dimes and the number of quarters. So lets say
x: number of dimes
y: number of quarters

Now lets write equations from the written problem.
We know that there are 36 coind total, thus:
x + y = 36
We also know that the coins total 5.85 dollars, but it is better to count in cents, that is 585 cents.
x are the number of dimes, their value is x*10
y are quarters with value of y*25
thus:
10x+25y=585

We have two equations and two unknowns now, that needs to be solved to get the answer.

x + y = 36
10x+25y=585

4 0

2 years ago

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NEED HELP ASAP <br> WILL GIVE BRAIN

34kurt

Im really dumb i srry!

7 0

2 years ago

State the converse, contrapositive, and inverse of each of these conditional statements a) If it snows tonight, then I will stay

marissa [1.9K]

Step-by-step explanation:

Consider the provided information.

For the condition statement $p \rightarrow q$ or equivalent "If p then q"

The rule for Converse is: Interchange the two statements.
The rule for Inverse is: Negative both statements.
The rule for Contrapositive is: Negative both statements and interchange them.

Part (A) If it snows tonight, then I will stay at home.

Here p is If it snows tonight, and q is I will stay at home.

Converse: If I will stay at home then it snows tonight.

$q \rightarrow p$

Inverse: If it doesn't snows tonight, then I will not stay at home.

$\sim p \rightarrow \sim q$

Contrapositive: If I will not stay at home then it doesn't snows tonight.

$\sim q \rightarrow \sim p$

Part (B) I go to the beach whenever it is a sunny summer day.

Here p is I go to the beach, and q is it is a sunny summer day.

Converse: It is a sunny summer day whenever I go to the beach.

$q \rightarrow p$

Inverse: I don't go to the beach whenever it is not a sunny summer day.

$\sim p \rightarrow \sim q$

Contrapositive: It is not a sunny summer day whenever I don't go to the beach.

$\sim q \rightarrow \sim p$

Part (C) When I stay up late, it is necessary that I sleep until noon.

P is I sleep until noon and q is I stay up late.

Converse: If I sleep until noon, then it is necessary that i stay up late.

$q \rightarrow p$

Inverse: When I don't stay up late, it is necessary that I don't sleep until noon.

$\sim p \rightarrow \sim q$

Contrapositive: If I don't sleep until noon, then it is not necessary that i stay up late.

$\sim q \rightarrow \sim p$

7 0

2 years ago

Simplify.<br> (8^3)^7 = 8^n<br><br> n=?

DiKsa [7]

Hello User,

Answer: n = 488

3 0

2 years ago

What number is bigger 10.65 or 1.056

Vladimir [108]

10.65 is bigger because 65 is larger than 56

5 0

2 years ago

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