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irina [24]
3 years ago
7

Help please I will give you the brainliest

Mathematics
1 answer:
Gala2k [10]3 years ago
8 0

Answer:

nvm its 15

Step-by-step explanation:

You might be interested in
Write an equation to represent the relationship shown in the graph.<br> Use the graph below
Lostsunrise [7]

Answer:

y=x+3

Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: y=mx+b where <em>m</em> is the slope and <em>b</em> is the y-intercept (the value of y when the line crosses the y-axis)

First, we could determine the slope (<em>m</em>). The slope is the \displaystyle\frac{rise}{run} of the line, or the number of units it travels up over the number of units it travels to the right.

Notice how each consecutive point moves up 1 unit and right 1 unit. This makes the slope of the line 1/1, which is just 1:

y=1x+b\\y=x+b

Now, to find the y-intercept, we must identify the value of y when the line crosses the y-axis.

The line crosses the y-axis at y=3, so therefore, the y-intercept is 3:

y=x+3

I hope this helps!

6 0
2 years ago
In the united state 13 out of every 20 cans are recycled. What percent of can are recycled
lyudmila [28]

Answer:

13%

Step-by-step explanation:

Just turn the amount of cans recycled into a percent

8 0
3 years ago
The height of five soldiers included 60inches,67inches,65inches and 64inches,if the mean of the five soldiers is 65inches what i
Nadya [2.5K]

Answer:

The last guy's height is 69 inches

Step-by-step explanation:

mean=sum of all numbers/number of numbers

There are 5 numbers in the set which means that 65 is the sum of all five numbers divided by 5. To reverse that we multiply 65 by 5 to get the sum of all of the numbers.

65*5=325

325 is the sum of all of the numbers so to find the missing number you add up all of the known numbers in the set and find the difference between that sum and 325.

60+67+65+64=256

325-256=69

The missing guy's height is 69 inches.

3 0
3 years ago
I need help with creating some equations for an assignment. These are the types of equations I need:
kondor19780726 [428]
Hi there!

Here are some examples for you:

Two one step equations:
6x = 36
y + 5 = 10

Two equations containing fractions:
1/2x = 4
3/4y + 1 = 8

One equation using the distributive property:
2(x + 5) = 3

One equation with a decimal:
2.5x + 5 = 10

One real world problem that is solved by an equation:
At the beginning, I had 5 cups of flour. I made a batch of cookies. Now, I have 3.5 cups of flour. How much flour did I use?
5 - x = 3.5

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
7 0
3 years ago
Read 2 more answers
A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 419 gram setting. It is
Dahasolnce [82]

Answer:

The calculated t- value = 1.09 > 3.19 at 0.025 level of significance

Null hypothesis is rejected

There is sufficient evidence to support the claim that the bags are underfilled

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given the mean of the Population(μ)  = 419 grams

The sample size 'n' =19

Given mean of the sample x⁻ = 412

Given variance of the sample S² = 784

                                                 S = √784 = 28

<u><em>Step(ii)</em></u>:-

<u><em>Null hypothesis: H₀</em></u>: There is no sufficient evidence to support the claim that the bags are underfilled.

<u><em>Alternative hypothesis: H₁:</em></u>

There is sufficient evidence to support the claim that the bags are underfilled.

Test statistic

                     t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }

                    t = \frac{412 -419}{\frac{28}{\sqrt{19} } }

                   t = -1.09

                 |t| = |-1.09|

<em>Degrees of freedom   ν = n-1 = 19-1 =18</em>

<em>t₀.₀₂₅ =  3.19</em>

<u><em>Final answer:</em></u><em>-</em>

The calculated t- value = 1.09 > 3.19 at 0.025 level of significance

Null hypothesis is rejected

There is sufficient evidence to support the claim that the bags are underfilled

                   

8 0
3 years ago
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