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3 years ago

2/5of a number is 80. What is 3/4of the same number?

Mathematics

1 answer:

lara [203]3 years ago

8 0

Answer:

2/5of a number is 80 5/5 = 1 32/1 = simplified = 32

3/4 of the same number 0.75

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Help! Marking as brainlyest

tatiyna

Answer:

Step-by-step explanation:

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● x = 1

The function after the changes is

● (1/2)x + 7

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3 years ago

Diego runs 7 miles in 63 minutes. Use the table below to determine how long it would take Diego to run 4 miles at this rate.

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Read 2 more answers

What is the explict formula for the arithmetic sequence -7.5,-9,-10.5,-12

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

the explicit formula for the arithmetic sequence has the form

x = a + d(n−1)

a is the first term and d is the common difference

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-7.5,-9,-10.5,-12

The first term is -7.5

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∴ x = -7.5 - 1.5(n−1)

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3 years ago

What is |-10| x 3y=-5

Amanda [17]

|-10| x 3y = -5

Y= - 1/6

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3 years ago

Solve the system of equations graphicallySolution=?

BigorU [14]

The given system is

$\begin{cases}y=\frac{5}{2}x-8 \\ y=-\frac{1}{2}x-2\end{cases}$

Given that y = y, let's combine the equations

$\frac{5}{2}x-8=-\frac{1}{2}x-2$

Let's solve for x

$\begin{gathered} \frac{5}{2}x+\frac{1}{2}x=8-2 \\ \frac{6}{2}x=6 \\ 3x=6 \\ x=\frac{6}{3} \\ x=2 \end{gathered}$

Then, we find y

$y=-\frac{1}{2}x-2=-\frac{1}{2}\cdot2-2=-1-2=-3$

The solution is (2, -3).

The image below shows the solution graphically.

3 0

1 year ago