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lisov135 [29]
2 years ago
10

PLEASE HELP ME!! ILL GIVE BRAINLIEST!!

Mathematics
2 answers:
Natalka [10]2 years ago
6 0

Answer:

C

Step-by-step explanation:

1/4 is .25

4 fourths is 1. 4 times 7 equals 28 hamburgers. one half is two fourths. 28+2=30 hamburgers.

Olegator [25]2 years ago
5 0

No of hamburgers she can make

\\ \sf\longmapsto 7\dfrac{1}{2}\div \dfrac{1}{4}

\\ \sf\longmapsto \dfrac{15}{2}\times \dfrac{4}{1}

\\ \sf\longmapsto \dfrac{60}{2}

\\ \sf\longmapsto 30

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Mark Borrowed $5,500 at 11.5 percent for 5 years (2.199) what is the amount of Marks total payment?
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Let I am interest, r rate, t time and p principle,

l= prt

l= 5500(.115)(5 )= $3162.5 is the total amount of interest to pay.


4 0
3 years ago
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Which of these sequences are arithmetic? Check all that apply.
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I know that the second one the fourth one and the fifth one are arithmetic but I’m not sure about the others I think there are only three but don’t count me on it
5 0
2 years ago
Find the value of the x in the equation 9x+15=8x
zheka24 [161]

9x+15=8x

subtract 15 and 8x from both sides to get

x=-15

3 0
2 years ago
Lisa and Joey are each saving money for their prom. Lisa’s total amount of money is represented by the function f(x)=20-13x. The
crimeas [40]

Answer:

2 weeks

Step-by-step explanation:

Given in the question that,

Equation that represent Lisa's total amount of money

f(x) = 20 - 13x

Equation that represent Joey's total amount of money

g(x) = x² - 10

To find weeks, x, after which they will have same amount of money, we will equate both equation

<h3>20 - 13x =  x² - 10</h3>

x² - 10 - 20 + 13x = 0

x² - 30 + 13x = 0

x² + 13x - 30 = 0

(x - 2)(x + 15) = 0

x = 2 or x = -15

Weeks, x, can not be negative so we will reject x = -15

Hence, after 2nd week Lisa and Joey will have the same amount of money save.

4 0
3 years ago
Two students from a group of eight boys and 12 girls are sent to represent the school in a parade.If the students are chosen at
jolli1 [7]

Answer:

The probability that the students chosen are not both girls is 62/95 ⇒ (c)

Step-by-step explanation:

* Lets explain how to find the probability of an event  

- The probability of an Event = Number of favorable outcomes ÷ Total

  number of possible outcomes

- P(A) = n(E) ÷ n(S) , where

# P(A) means finding the probability of an event A  

# n(E) means the number of favorable outcomes of an event

# n(S) means set of all possible outcomes of an event

- Probability of event not happened = 1 - P(A)

- P(A and B) = P(A) . P(B)

* Lets solve the problem

- There is a group of students

- There are 8 boys and 12 girls in the group

∴ There are 8 + 12 = 20 students in the group

- The students are sent to represent the school in a parade

- Two students are chosen at random

∴ P(S) = 20

- The students that chosen are not both girls

∴ The probability of not girls = 1 - P(girls)

∵ The were 20 students in the group

∵ The number of girls in the group was 12

∴ The probability of chosen a first girl = 12/20

∵ One girl was chosen, then the number of girls for the second

   choice is less by 1 and the total also less by 1

∴ The were 19 students in the group

∵ The number of girls in the group was 11

∴ The probability of chosen a second girl = 11/19

- The probability of both girls is P(1st girle) . P(2nd girl)

∴ The probability of both girls = (12/20) × (11/19) = 33/95

- To find the probability of both not girls is 1 - P(both girls)

∴ P(not both girls) = 1 - (33/95) = 62/95

* The probability that the students chosen are not both girls is 62/95

5 0
3 years ago
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