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4 years ago

Help with math homework!

Mathematics

2 answers:

Natalka [10]4 years ago

8 0

Answer:

93 $\frac{24}{27}$

Step-by-step:

86 + 7 = 93

The 24 denominator stays the same and just add the numerators:

$\frac{14}{24}$ + $\frac{13}{24}$

= 93 $\frac{24}{27}$

*also 14 + 13 does not equal 24, its just closest to one of the choices*

vodka [1.7K]4 years ago

5 0

Answer:

94 1/8

Step-by-step explanation:

https://www.hackmath.net/en/calculator/fraction?input=86+14%2F24+%2B+7+13%2F24&submit=Calculate

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Triangle ABC is isosceles where AC = CB. AC = 6a - 8 and CB = 4a - 2. Find AC.

anastassius [24]

Answer:

Step-by-step explanation:

AC = CB

6a - 8 = 4a - 2

a = 3

6(3) - 8 = 10

AC = 10

3 0

3 years ago

Brianna has x nickels and y pennies. She has no less than 20 coins worth no more

Bond [772]

Answer:

$y \ge 20 - x$

$y \le 80 -5x$

$(x,y) = (15,5)$

Step-by-step explanation:

Given

$Nickels = x$

$Pennies = y$

$Amount = \$0.80$ maximum

$Coins = 20$ minimum

Required

Solve graphically

First, we need to determine the inequalities of the system.

For number of coins, we have:

$x\ +\ y\ge 20$ because the number of coins is not less than 20

For the worth of coins, we have:

$0.05x\ +\ 0.01y\ \le0.80$ because the worth of coins is not more than 0.80

So, we have the following equations:

$x\ +\ y\ge 20$

$0.05x\ +\ 0.01y\ \le0.80$

Make y the subject in both cases:

$y \ge 20 - x$

$0.01y \le 0.80 - 0.05x$

Divide through by 0.01

$\frac{0.01y}{0.01} \le \frac{0.80}{0.01} -\frac{ 0.05x}{0.01}$

$y \le \frac{0.80}{0.01} -\frac{ 0.05x}{0.01}$

$y \le 80 -5x$

The resulting inequalities are:

$y \ge 20 - x$

$y \le 80 -5x$

The two inequalities are plotted on the graph as shown in the attachment.

$y \ge 20 - x$ --- Blue

$y \ge 80 -5x$ --- Green

Point A on the attachment are possible solutions

At A:

$(x,y) = (15,5)$

4 0

3 years ago

57.63 is the Regular price. The discount is 10%. What;s the sales price.

Kipish [7]

57.63×0.9=51.867($51.87)

8 0

3 years ago

Which graph represents the function -2x - 5y = -10? Please explain!!

damaskus [11]

The answer would be J because if the equation was transferred into a positive then it would be 2y and 5x marking 5x on the bottom and 2y vertically.
Hope this helps!!

6 0

3 years ago

Read 2 more answers

Urgent!!!!!In a class of students, the following data table summarizes the gender of the students

Setler79 [48]

Answer:

.85%

Step-by-step explanation:

You add up all the students who have an A whether they are male or female. 3 + 17 = 20. You have 17 males right? Divide 17 by 20 to get .85

7 0

3 years ago