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3 years ago

Does Y+7=2x and 2y=4x-14 have a solution?

Mathematics

1 answer:

Minchanka [31]3 years ago

7 0

Answer: jnj njnjnjknkjkjnkjnkjn

bbnj j

Step-by-step explanation:

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12 less than the quotient of a number and seven is -2 find the number

kiruha [24]

A quotient is the result of a division.
Let the unknown number be x.

We translate the problem into an equation, piece by piece.

<span>"quotient of a number and seven" ----> x/7
</span>
<span>"12 less than the quotient of a number and seven" ----> x/7 - 12

The word "is" means "="
x/7 - 12 =

All the above is -2, so it equals -2.

x/7 - 12 = -2

$\dfrac{x}{7} - 12 = -2$

First, add 12 to both sides and simplify.

</span><span> $\dfrac{x}{7} - 12 + 12 = -2 + 12$

</span>
<span><span><span> $\dfrac{x}{7} = 10$ </span>
</span>
Next, multiply both sides by 7.

$\dfrac{x}{7} \times 7 = 10 \times 7$

$x = 70$
</span>
Answer: The number is 70.

5 0

3 years ago

Read 2 more answers

Jess will plant up to 27 acres on her farm with wheat and corn. More than 5 acres will be planted with wheat.

Lena [83]

The first thing we do in these cases is to define the variables.
We have then:
w = represent the number of acres of wheat
c = represent the number of acres of corn
We write now the inequalities based is:
"Jess will plant up to 27 acres on her farm with wheat and corn"
w + c <= 27
"More than 5 acres will be planted with wheat"
w> 5
Answer:
two inequalities that represent this situation are:
w + c <= 27
w> 5

8 0

3 years ago

Read 2 more answers

Each week, Ms.Jones goes to the grocery store and estimates that she will spend $120. This week, she actually spent $90. What is

horsena [70]

I think there is a 25% percent error.

4 0

3 years ago

Read 2 more answers

I'm confused please help

Vesnalui [34]

Carbon Dioxide: o2c
Water: h2o
Oxygen: o2

Water is h2o because there are 2 hydrogen molecules and 1 oxygen molecule.

h2 = 2 hydrogen molecules
o = 1 oxygen molecule

3 0

3 years ago

PLEASE HELP. I'LL GIVE BRAINLIEST.

vova2212 [387]

<h2>Answer:</h2>

The answer is 16.

<h2>Step-by-step explanation:</h2>

Since the 8x is positive, the equation must have y as a positive number.

Let's see this!

An easy way to complete the square if you have the constants for x2 and

But not the non-variable number is to divide the x constant, and then square it.

Example:

$\frac{8x}{2} \\\\4^2=16\\$

The last number must be 16. Let's check it.

$(x+4)^2=x^2+8x+16$

6 0

2 years ago