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3 years ago

What's the answer to this

Mathematics

2 answers:

puteri [66]3 years ago

5 0

Is the middle one :)

Makovka662 [10]3 years ago

4 0

The answer in the middle

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If the point (2,5) is on the graph of an equation, which statement must be

Hunter-Best [27]

Answer: D

Step-by-step explanation:

The values x = 2 and y = 5 make the equation true.

4 0

2 years ago

3. Product of two numbers is 27/14. If one of them is 1 2/7, find the<br>other.<br>

Tems11 [23]

Answer:

$\frac{9}{8}$

Step by step explanation:

$\frac{27}{14} \div \frac{12}{7} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: = \frac{27}{14} \times \frac{7}{12} = \frac{9}{8}$

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2 years ago

4 x plus 8 y equals 40, when y equals 0.8?

Over [174]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{x = 8.4}}}}}$

Step-by-step explanation:

Given, y = 0.8

To find : value of x

$\sf{4x + 8y = 40}$

plug the value of y

$\longrightarrow{ \sf{4x + 8 \times 0.8 = 40}}$

Multiply the numbers: 8 and 0.8

$\longrightarrow{ \sf{4x + 6.4 = 40}}$

Move 6.4 to right hand side and change it's sign

$\longrightarrow{ \sf{4x = 40 - 6.4}}$

Subtract 6.4 from 40

$\longrightarrow{ \sf{4x = 33.6}}$

Divide both sides by 4

$\longrightarrow{ \sf{ \frac{4x}{4} = \frac{33.6}{4} }}$

Calculate

$\longrightarrow{ \sf{x = 8.4}}$

Hope I helped!

Best regards ! :D

5 0

2 years ago

Find the equation of the line that passes through the point left-parenthesis 1 comma 8 right-parenthesis and is perpendicular to

Furkat [3]

Don't be shy about using actual parentheses and commas.

Line through (1,8) perpendicular to

$-\dfrac 4 5 x + \dfrac 5 4 y = -4$

The perpendicular family is gotten by swapping the coefficients on x and y, negating exactly one of them. The constant is given directly by the point we're through:

$\dfrac 5 4 x + \dfrac 4 5 y = \dfrac 5 4 (1) + \dfrac 4 5 (8) = \dfrac 5 4 + \dfrac{32}{5}$

Let's clear the fractions by multiplying both sides by 20.

$25x + 16y = 25 + 128 = 153$

Might as well stop here.

Answer: 25 x + 16 y = 153

7 0

2 years ago

I need help with this

ch4aika [34]

The correct answer is 15

4 0

2 years ago