MATHEMATICS MIDDLE SCHOOL

Angelo is trying to save up to buy the new iPhone 11. He has $40 in his wallet. He decides to shovel snow off driveways for $30 per house to earn some money. Use this information to solve the problems below.-Which equation models the situation?

y = 30 + 40x
x = 40 + 30y
x = 40 +30y
y = 40 + 30x

Answers

Answer 1

Answer: the equation that best models this situation would be: y=40+30x

Answer 2

Answer:

Answer:

y = 40 + 30x

Step-by-step explanation:

You dont know how many houses, so you put a variable for it. You have $40 in your wallet. Thats why y = 40 + 30x is your answer.

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A porch has the shape of a semicircle with a diameter of 7 ft.What is the approximate area of the porch, rounded to the nearest square foot? Use 3.14 to approximate .

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Answers

A = pi * r^2

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What is 4z - 3/z + 6 when z = −3?

I need this asap!!

Answers

4(-3)-3/(-3)+6
PEMDAS
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-5 is what I got, if you plug in -3 where z is.

I need help on number 19.

Answers

Add the fractions 1/4 and 3/8
First find the LCD of 1/4 and 3/8. 8 is the LCD.
Turn 1/4 into 2/8.
Now add.
3/8+2/8=5/8

Hope this helps!

C it would be C becuse 3 8ths plus 1 4ths equals 4 8ths

Katie wants to collect over 100
100100 seashells. She already has
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3434 seashells in her collection. Each day, she finds
12
1212 more seashells on the beach. Katie can use fractions of days to find seashells.
Write an inequality to determine the number of days,
d
dd, it will take Katie to collect over
100
100100 seashells.

Answers

Answer: if I’m reading this right the answer should be6 days

Step-by-step explanation: do 12x6=72 then add that to the current 34 shells she has, after this then she will have 108 shells, the amount she is looking for.

Question:
To decrease an amount by 3% what single multiplier would I I use.