Can someone help? It’s worth one point but there is only 3 questions so if I get it wrong I’m screwed

Mathematics

2 answers:

OLEGan [10]4 years ago

6 0

(3y+3z) = y+2y=3y+3z is the answer

Vera_Pavlovna [14]4 years ago

4 0

Answer:

3y + 3z

Step-by-step explanation:

y + 2y + 3z you can only combine like terms y or 1y + 2y = 3y

3y + 3z these can't be combined because one is y and the other z

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Katie bought 4 sweaters that cost the same amount and 1 shirt that cost $20. The items she bought cost a total of $160 before ta

Veronika [31]

Answer:

Each sweater costs $35.

Step-by-step explanation:

First subtract the total price ($160) by the price of the shirt ($20).

160 - 20 = 140

Now were left with $140. Since Katie bought 4 sweaters, divide 140 by 4.

140/4 = 35

This means that each sweater was $35. If you want to make sure this is correct just multiply 35 by 4 and then add the $20. You should end up with $160.

35 x 4 = 140

140 + 20 = 160

5 0

3 years ago

A new auditorium is begging built for a college the balcony has 200 seats the floor has 25 rows with x seats in each row the num

aliya0001 [1]

Question:

A new auditorium is being built for a college. The balcony has 200 seats. The floor has 25 rows with x seats in each row. The number of people in the auditorium must be under 750 to meet safety regulations. What is the solution of this inequality, and what is its meaning?

Answer:

$200 + 25x < 750$