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3 years ago

Don’t mind the check mark

Mathematics

2 answers:

dimulka [17.4K]3 years ago

7 0

Answer:

Step-by-step explanation:

when moving things over the equation sign, you must switch the sign (positive or negative) they didn't switch it

olga nikolaevna [1]3 years ago

6 0

Answer:

Step-by-step explanation:

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Tammy needs at least an 85% in order to pass her chemistry class.

MissTica

17/20 or 0.85 is the answer

7 0

3 years ago

Which is the solution set of the inequality -15y+9<-36

liraira [26]

Answer:

$-15y+93\:\\ \:\mathrm{Interval\:Notation:}&\:\left(3,\:\infty \:\right)\end{bmatrix}$

Therefore, the first choice is correct.

The graph of the inequality is also attached below.

Step-by-step explanation:

Considering the inequality

$-15y+9$

solving

$-15y+9$

$\mathrm{Subtract\:}9\mathrm{\:from\:both\:sides}$

$-15y+9-9$

$-15y$

$\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}$

$\left(-15y\right)\left(-1\right)>\left(-45\right)\left(-1\right)$

$15y>45$

$\mathrm{Divide\:both\:sides\:by\:}15$

$\frac{15y}{15}>\frac{45}{15}$

$y>3$

In other words,

$-15y+93\:\\ \:\mathrm{Interval\:Notation:}&\:\left(3,\:\infty \:\right)\end{bmatrix}$

Therefore, the first choice is correct.

The graph of the inequality is also attached below.

6 0

3 years ago

Suppose that your net income for the month is $1,500 and that your total expenses are $2,500

Aleks [24]

Answer:

You will need to double your net income in order to make a profit.

Step-by-step explanation:

1500 x 2 = 3000 - 2500 = 500 which is 500 dollars profit

6 0

4 years ago

Solve the System of Equations. Show your work Y=x + 6 x + y= -2

Flauer [41]

Substitute first Y for the second Y
So it would be x + x + 6 = -2
Then it would be 2x +6 = -2
Move the 6 over so it would be 2x =-8
Divide by 2 your answer is x = -4

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3 years ago

What is the factor of this problem? ~plz help I cannot get this wrong !

lapo4ka [179]

Answer:

the awencer is 4.2

Step-by-step explanation:

7 0

3 years ago