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2 years ago

5x + 3y = 7 4x + 5y = 3 How do I solve

Mathematics

2 answers:

Serhud [2]2 years ago

6 0

Answer:

9x+8y

Step-by-step explanation:

because you have to add the linked terms which are 5x and 4x, & 3y and 5y with if you add 5x and 4x together and 3y and 5y together you get 9x+8y

wel2 years ago

3 0

Answer:

9x+8y

Step-by-step explanation:

first you would take your liked terms and combine them.

1. 5x+4x=9x

2. 3y+5y=8y

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Thank you guys for your help!

Verdich [7]

Answer:

4/5

Step-by-step explanation:

-18/2 = -9, and integer
√9 = 3, an integer
0, an integer
4/5, irreducible fraction; not an integer

7 0

2 years ago

The number of points scored by a basketball player in the first eight games of a season are shown below. 15, 35, 18, 30, 25, 21,

hichkok12 [17]

Answer:

im not sure how the data should be interpreted but here is the distribution. It goes up by .416

Step-by-step explanation:

the average of the first 8 games is 24

the average of the 12 games is 24.416

3 0

2 years ago

The volume of a CONE-shaped hole is 75pi ft cubed. If the hole is 9 feet deep, what is the radius of the hole?

Arturiano [62]

Answer:

The radius of hole is 5 feet

Step-by-step explanation:

Depth of conical hole = 9 feet

Let the radius of hole be r

Volume of conical hole = $\frac{1}{3} \pi r^2 h$

So, Volume of conical hole = $\frac{1}{3} \pi \times r^2 \times 9$

We are given that volume of a CONE-shaped hole is 75pi ft cubed.

So, $\frac{1}{3} \pi \times r^2 \times 9=75 \pi$

$\frac{1}{3} \times r^2 \times 9=75$

$r^2=\frac{75 \times 3}{9}$

$r=\sqrt{\frac{75 \times 3}{9}}$

r=5

Hence The radius of hole is 5 feet

6 0

2 years ago

Jacob is a teacher. He made 75 cookies to give to his students on the first day of school. He gave 2 cookies to each student who

Lisa [10]

Answer:

See explanation

Step-by-step explanation:

Jacob has 75 cookies.

He gave 2 cookies to each student.

Complete the table:

$\begin{array}{cc}\text{Number of student arrived}&\text{Number of cookies left}\\1&75-2=73\\2&73-2=71\\3&71-2=69\\...&...\end{array}$

Let n be the number of students. After nth student arrived Jacob had left

$g(n)=75-2n$

cookies.

This is an arithmetic sequence with

$g_1=g(1)=73\\ \\d=-2$

Thus,

$g_{n}=g_{n-1}-2\\ \\g(n)=g(n-1)-2$

3 0

2 years ago

Read 2 more answers

Ned has scored 84 points in the first 6 games of the basketball season. How many points per game has Ned scored?

ololo11 [35]

Ned must have scored an avg. of 14 points per game in his 6 games total.

7 0

2 years ago

Read 2 more answers