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Flauer [41]
2 years ago
12

ANYONE GOOD AT MATH!!!! HELP WITH 3 QUESTIONS

Mathematics
2 answers:
mr_godi [17]2 years ago
3 0
Ok do in the first you have to do a darwin’s if what 87 and i don’t know more
Strike441 [17]2 years ago
3 0

Answer:

1.) a. 1/8 b. 7/8 c. 4/8 d. 3/8 2.) a. 8/40 b. 18/40 c. 14/40 d. 0.05 (5%) 3.) a. 60/400 b. 138/400 c. 26/400 d. 12 e. 100 pages goes with 4 different colors as does 150 and 200 page notebooks, this means 4+4+4=12 and that's the number of different possible combinations

Step-by-step explanation:

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Justin is saving money to buy a stereo. He has $25 saved in the bank right now. He earns $40 each week delivering newspapers.
mafiozo [28]

Answer:

y = 25 + 40x

Step-by-step explanation:

Let

y = the total amount of money Justin has

x = number of weeks

Amount Justin has in the bank = $25

Amount Justin earns per week = $40

Equation for how much money Justin has (including the amount he has in the bank) in x weeks

the total amount of money Justin has = Amount Justin has in the bank + (Amount Justin earns per week * number of weeks)

y = 25 + (40 * x)

y = 25 + 40x

The equation is

y = 25 + 40x

7 0
3 years ago
Solve the system using elimination
gayaneshka [121]

Step-by-step explanation:

-4x + 9y = -22

-9x -9y = 126

-13x = 104

x = -8

8 +`y = 14

y = 6

(-8,6)

6 0
3 years ago
If a variable has a distribution that is​ bell-shaped with mean 19 and standard deviation 7​, then according to the Empirical​ R
melamori03 [73]
The empirical rule says that approximately 68% of a normal distribution falls within one standard deviation of the mean. In this case, this would include all values of the variable in the interval (19-7,19+7)=(12,26).
7 0
3 years ago
Please help giving 50 points and brainlyest if correct
zmey [24]

Answer:

1.f 2.a 3.j 4.e

Step-by-step explanation:

you add and subtract the needed like terms

for example you can add 3x with 4x but not with 4x² because it's a different degree

3 0
3 years ago
Read 2 more answers
A girls hair is 12 3/8 inches long if she had 2 1/2 inches cut off how long will her hair be ?
Darya [45]

Answer: 9 and 7eights

Step-by-step explanation: Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction. Which would equal, 9 and 7eights.

5 0
3 years ago
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