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4 years ago

4x+y=7 in standard form

Mathematics

1 answer:

Marina86 [1]4 years ago

5 0

Answer: Y=-4x+7

Explanation:

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Find an ordered pair (x, y) that is a solution to the equation.<br> 2x-y=7

xxTIMURxx [149]

Answer:

(0,−7)

Step-by-step explanation:

Since this is the equation of a straight line, there are no restrictions on what you could choose for a value of x. In "official" terms, we say the domain of the function is all real numbers.

Say you pick something simple like x=1. Now, insert this value, and the equation becomes

2−7=y

or y=−5

This means (1,−5) must be a point on the line, and it is also an ordered pair that satisfies the equation.

8 0

3 years ago

50 divided by 70 pluse 10

jok3333 [9.3K]

$50:70+10=\dfrac{50}{70}+10=\dfrac{5}{7}+10=\boxed{10\frac{5}{7}}$

7 0

4 years ago

Read 2 more answers

A man invests a total of $9,493in two savings accounts. One account yields 9% simple interest and the other 10% simple interest.

Agata [3.3K]

Answer:

$1850

Step-by-step explanation:

Given

The person invests a total of $9493
Amount invested in 9% Simple interest account =x
Amount invested in 10% Simple interest account= 9493-x
Earnings in Interest=$930.8

The simple interest formula

$S.I=\frac{P\times T\times R}{100}$

where

S.I is simple interest
P is principle invested
T is time period
R is rate of interest

There fore total interest

$=930.8= \frac{x\times 1\times 9}{100} +\frac{(9493-x)\times 1\times 10}{100}\\930.8=\frac{9x+94930-10x}{100}\\93080=94930-x\\x=94930-93080\\x=1850$

Therefore x=1850

⇒Amount invested in 9% account= $1850

4 0

3 years ago

Simplify<br> (-3xy2z2) (-2x4y3z)3

s2008m [1.1K]

Answer:

the answer is

18x^5y^5z^3

7 0

3 years ago

What is 10.4 written in simplest form

kari74 [83]

$\frac{4}{10}$ = $\frac{2}{5}$

First, I have to reduce 4/10 into 2/5 by dividing 4/10 by 2
10.4 = $10\frac{4}{10}$

= $10\frac{2}{5}$

So the answer is $10\frac{2}{5}$

3 0

3 years ago

Read 2 more answers