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topjm [15]
3 years ago
15

What is 30percent 0f 110

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
4 0
p\%=\dfrac{p}{100}\\\\30\%=\dfrac{30}{100}=\dfrac{3}{10}=0.3\\\\30\%\ of\ 110\ is\ 0.3\cdot110=33
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Solve the system of linear equations by substitution.<br><br> 5x+2y=9<br><br> x+y=-3
Hatshy [7]
Step 1: subtract x from -3. New equation should be y=-3-x.
Step 2: plug that equation into top equation. Should be 5x + 2(-3-x) = 9.
Step 3: use distribitive properties on 2(-3-x). New equation is 5x - 6 - 2x = 9.
Step 4: combine like terms. New equation 3x - 6 = 9.
Step 5: work it out. Divide 3x and 9 by 3. New equation is x - 6 = 3. Add 6 to -6 and 9. Final eqaution is x = 9.
Step 6: swap 9 for x in second equation. New equation is 9 + y = -3
Step 7: subtract 9 from 9 and -3. New equation is y = -12
: = = -
8 0
3 years ago
A popular video game claims that the average time needed to reach level 10 Paladin is 3 hours with a standard deviation of 0.4 h
ASHA 777 [7]
For the answer to the question above, first, we must calculate the standard error. The standard error is standard deviation divided by the square root of the sample. In this case, it is equal to 0.178. The z-score has defined the distance from the sample to the population mean in units of standard error.

z = (3 – 2.5)/0.178 = 2.81
at this z-score, the probability is 0.9974 or
if rounded off it is 1%
I hope my answer helped
7 0
3 years ago
Homework kills guys, please help
Kazeer [188]

Answer:

The correct answer is in bold below written in two different ways. I think that the two middle options of your problem were given by mistake. The correct answer is not in the options.

Step-by-step explanation:

cost of yogurt = cost of toppings + cost of yogurt with 1 topping

cost of yogurt with 1 topping = $3.65

cost of yogurt = cost of toppings + 3.65

cost of 1 additional topping = $0.45 * 1

cost of 2 additional toppings = $0.45 * 2

cost of x additional toppings = $0.45 * x = 0.45x

Since 1 topping is included in the $3.65 charge, if you pay for x additional toppings, you will have x + 1 total number of toppings. That means you must pay for only x - 1 additional toppings to have a total of x toppings.

One topping is already included in the $3.65 charge, so you pay for only x - 1 additional toppings.

cost of x - 1 additional toppings = 0.45(x - 1)

cost of yogurt = 0.45(x - 1) + 3.65

y = 0.45(x - 1) + 3.65

y = 0.45x - 0.45 + 3.65

y = 0.45x + 3.2

8 0
3 years ago
Help me :) I need to find the value of x and find the m
damaskus [11]
X=9
DBC= 54°


The given angle is 90°, so we can add the other two given equations to equal 90.

7x-9+4x=90
1) Combine like terms
11x-9=90
2) Add 9 to both sides
11x=99
3) Divide 11 on both sides
x=9

Now to find the angle:
7x-9
1) Plug 9 in for x (which is what we just solved for)
7(9)-9
2) multiply
63-9
3) subtract
54

m= 54°
7 0
3 years ago
How to do?,what is X and Y?
ELEN [110]
Because the triangles are similar, corresponding sides have the same ratio.
.. AB/DE = BC/EC = AC/DC
.. 24/18 = 8/y = (15 +x)/15
Then we can solve for x and y.
.. x = 15*(24/18) -15 = 5
.. y = 8*(18/24) = 6
6 0
3 years ago
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