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Andreas93 [3]
3 years ago
15

I need help with my math I'm doing solving equations using addition and subtraction

Mathematics
2 answers:
Katen [24]3 years ago
8 0
It would be 4 because, on the right, it has 3 and 4. That is 7 and if you look at the scale it's balanced which means it would be the same on that side but it already has 3 so 4. So hold up your fingers and take 4 fingers up and add 3 fingers to that 4. How many is that? Count them all up and you'll get 7!
Flura [38]3 years ago
3 0
N+3=7. To find n, you need to have it by itself, so you can do that by subtracting 3 on both sides, so it would look like: n+3-3=7-3. Then you have n=4.
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I NEEED HELP PLEASEEE EOMEONE
andrey2020 [161]

Answer:10(6)

Step-by-step explanation: add them together? not 100% sure tho

5 0
3 years ago
18x3=8(x+16)+10x Can someone please help me​
quester [9]
Ok so 18x3=8x+128+10x (multiply the 8 with the stuff in the parenthesis) now you combine like terms so 54 = 128+18x now you have to get the numbers together so you subtract 128 ~> -74 = 18x then you divide -74/18 which is about -4.1 so x= -4.1
5 0
3 years ago
What is the equation of the line?
Olin [163]

Answer:

y = -7

Step-by-step explanation:

This is a horizontal line

The y value does not change

It is of the form y=

y = -7

3 0
3 years ago
Read 2 more answers
In a city, 35% of the bus riders with a monthly pass are students. in a random sample of 50 bus riders with monthly passes, 23 a
inessss [21]

Answer:

ρ = 35% or 0.35

ρ with ^ = \frac{23}{50}=0.46 or equivalently 46%

Step-by-step explanation:

ρ represents the population proportion of the bus riders, with a monthly pass, who are students.

The population proportion is simply the percentage of the entire population with a particular characteristic. We have been informed that in a city, 35% of the bus riders with a monthly pass are students. This means that 35% of the whole population of bus riders with a monthly pass are students. Therefore, our ρ is simply 35% or 0.35.

ρ with ^ represents the sample proportion of the bus riders, with a monthly pass, who are students. This is a statistic or an estimator as it is normally used to estimate the value of ρ, the population proportion. It is calculated using the formula;

ρ with ^ = \frac{x}{n}

where n represents the size of the sample and x the number of individuals in the sample with a certain desired characteristic. We have been informed that;

in a random sample of 50 bus riders with monthly passes, 23 are students.

Using the above formula and the values given we have;

ρ with ^ = \frac{23}{50}=0.46 or equivalently 46%

3 0
3 years ago
The formula for the area of a trapezoid is a=1/2h(b1+b2) are the are the length of the bases, and is the height, to answer the q
tatuchka [14]
A=1/2*75*(125+81)
a=1/2*75*206
a=77.25 sq ft
8 0
3 years ago
Read 2 more answers
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