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arsen [322]
3 years ago
15

I don’t understand this at all

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
8 0

Answer:

x=8

Step-by-step explanation:

You would set them equal to each other to get 9x-13=6x+11.

You would them move 6x over so -6x on both sides. This would then get you 3x-13=11.

Then move the -13 over so add 13 to both sides to get 3x=24

Then get x by itself so divide by 3 to get x=24/3.

Then that simplified is 8

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Please help, I really need help
7nadin3 [17]
So the teacher bought 1/4 of the brownie pan. And it came out to $4.
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5 0
3 years ago
In Jamie's class, 1/5 of the students are boys. What percent of the students in Jamie’s class are boys?
Cloud [144]

Answer:

The percentage of boys students in Jamie's class is 20 %

Step-by-step explanation:

Given as :

The total number of boys in the Jamie's class = \frac{1}{5} of the total student

Let the total number of student's in the class = x

So, The number of boys =  \frac{1}{5} × x

I.e The number of boys =  \dfrac{x}{5}

So , in percentage the number of boys students in class = \dfrac{\textrm Total number of boy student}{\textrm Total number of students} × 100

OR, % boys students = \dfrac{\dfrac{x}{5}}{x} × 100

or, % boys students = \frac{100}{5}

∴ % boys students = 20

Hence The percentage of boys students in Jamie's class is 20 %  . Answer

7 0
3 years ago
Read 2 more answers
LOOK AT PICTURE FOR PROBLEM (probably more than one answer) ‼️
podryga [215]

Answer:

A and C

Step-by-step explanation:

Two angles are Adjacent when they have a common side and a common vertex (corner point) and don't overlap.

So <7 and <9 are adjacent to <8.

[If there's any mistake, please inform me]

7 0
3 years ago
Let HH represent the number of hummingbirds and SS represent the number of sunbirds that must pollinate the colony so it can sur
Nikitich [7]

Answer: 7

Step-by-step explanation:

Here the given inequality that shows the number of humming birds(H) and the number of sunbirds(S)  that must pollinate the colony so it can survive until next year,

6 H + 4 S > 74

If This year, 8 hummingbirds pollinated the colony.

By putting H=8 in the above inequality,

We get,

6× 8 + 4 S > 74

⇒ 48 + 4 S > 74

⇒ 4 S > 26

⇒ S > 6.5

Hence the least number of sunbirds is 7.

7 0
3 years ago
Read 2 more answers
The price of an item costs $13 to make. It is marked up $6.50 to sell. What is the percent marked-up
Whitepunk [10]

(1 + x) (13) = 13+6.5

13x + 13 = 19.5

13x = 6.5

x = 0.5

The item was marked up by 50%

4 0
3 years ago
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