Solve the system by substitution.
y = -7x + 6
5x + y = 2

Answer:

3n+3=5.4

3n=2.5

n= 4/5

Step-by-step explanation:

0.8

Answer:

(18-x-5) + (18+x)/2 =Total Left

Step-by-step explanation:

Sue has left    Tony has left    

(18-x-5)     +      (18+x)/2 =   Total Left

Answer:

96.

Step-by-step explanation:

Divide the silver beads by 85=96

Then divide the black beads by 30=96.

Total necklaces that can be made: 96

Answer:

Step-by-step explanation:

1/2 * 1/4 = 1/8

When you divide fractions you can multiply them if you use el reciproco ( not sure how to tell it in English sorry)

Hope this help

The equivalent multiplication equation is 1/2 x 1/4.

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

Given:

1/2 ÷ 4​

As, the fraction does not support division.

So, to perform the division we change the division sign into multiplication sign and reciprocate the number on the right side of division sign.

Then, 1/2 ÷ 4​

= 1/2 x 1/4

= 1/8

Hence, the equivalent multiplication equation is 1/2 x 1/4.

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Answer:

2sqrt(3)

Step-by-step explanation:

.............

jackie is weird cus she is and because cookies ar goodStep-by-step explanation:

go to \ type this in

Answer:

About 8 years

Step-by-step explanation:

3% of $800 is $24

$24 x 8 is $192 add that to the $800 and you get $992

Answer:

yes, she will have 1 dollar left

Step-by-step explanation:

4$ (sandwich) + 2$ (drink) + 1$ (chips)= 7$

8$-7$= 1$

Answer: aight bro I only know B which is 90°. If it’s drawn to scale use a protractor. Is there more info, maybe I can help

Step-by-step explanation:

Answer:

If 9x is not =27, then x is not =3

Step-by-step explanation:

Going out on a limb here, please ignore if I'm missing it:

If 9x is not =27, then x is not =3

(I can't type the equal sign with a slash through it.)

Answer: Looks Proportional

Answer:

The first one is proportional but the second one is not proportional

Step-by-step explanation:

Hope this helps!

Answer:

76°

Step-by-step explanation:

Answer:

76

Step-by-step explanation:

Delta Math

Answer:

you can get 360 miles on a full tank

Step-by-step explanation:

Answer:

Every 1 Gallon will get you 30 Miles

So, if you have 12 Gallons then you can travel 360 Miles

You just multiply the amount of miles you can travel per gallon by the total amount of gallons that can be held by the gas tank. This will get you the max miles you can drive before running completely out of gas.

Answer:

Here's what we know:

n + d = 20 (there are a total of 20 nickels and dimes)

.05n + .1d = 1.4 (total change equals $1.40)

There are a couple of ways to solve this. You can go the elimination method by multiplying the second equation by an amount to get rid of a variable, or we can go substitution by isolating a variable in the first equation. I'll go with elimination in this case:

-10(.05n + .1d = 1.4) this will cause the d-variable to equal 0:

n  +  d = 20

-.5n - d = -14

------------------

.5n = 6

n = 12

Now that we know n, we can solve for d:

12 + d = 20

d = 8

Check:

.05 * 12 + .1 + 8 = 1.4

.6 + .8 = 1.4

1.4 = 1.4

:)

Answer: x + 2

Step-by-step explanation:

Given the equation to solve by long division :

Divide x² - x - 6 by x - 3

x in the divisor is used to divide the x² in the Dividend to obtain a value of x as the quotient. The quotient value is multiplied by each value in the Dividend and so on.

This steps taken obtain the quotient is clearly shown in the picture attached.

Answer:

the answer is c.23

Step-by-step explanation:

Length of one side of a fence around the square area is equals to 23.

" A Square is a quadrilateral whose all four sides are of equal length and measure of all the angle is 90°."

" Area is the surface which represents the amount of space occupied by any two dimensional object."

Formula used

Area of a square = (side)²

According to the question,

Area of a square = 529

⇒ (side)² = 529

⇒ side = 23

Hence the Length of one side of a fence around the square area is equals to 23.

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Answer:

15,894.06

Step-by-step explanation:

HI there!

This is a compound interest question, so we will use the formula

[tex]x = p(1+\frac{r}{n})^n^t[/tex]

P being our principle amount, $15,000 in this case,

R being our rate, or 1.25

N being our compound rate, which is semiannually, or twice a year.

T is our time, being 3.

After plugging these values in, we get

15,894.06

I hope this helps!

Answer:

[tex]x=\sqrt{24}[/tex]

Step-by-step explanation:

2x^2+25=73

Subtract 25 from both sides:

2x^2=48

Divide both sides by 2:

x^2=24

Square both sides:

[tex]\sqrt{x^{2} } =\sqrt{24}[/tex]

[tex]x=\sqrt{24}[/tex]

Answer:

X = 5

Step-by-step explanation:

Angles on a straight line=180°

180-151=29°

sum of angles in a triangle= 180°

11x-1+20-3+29=180

11x+20x-3-1+29=180

31x+25=180

31x=180-25

31x=155

divide both sides by 31

X=5

(11x-1)°= 55-1= 54°

(20x-3)°= 100-3= 97°

54°+97°+29°=180°

Answer:  (92, 128)

Step-by-step explanation:

According to the Empirical rule,

If the population is normallly distributed, then 95% of the population lies within 2 standard deviations from the mean.

Given: Mean = 110

Standard deviation = 9

The interval of systolic blood pressures represent the middle 95% of males:

(110-2(9), 110+2(9))

= (110-18, 110+18)

= (92, 128)

Hence, the interval of systolic blood pressures that represent the middle 95 % of males =  (92, 128)

Answer:

its 92, 128

Step-by-step explanation:

DONT LET THE COMMENT FOOL YOU!! >:(

Answer:

add the sides

Step-by-step explanation:

can u go to savageserbs on youtbe and like and watch the new video you dont have to sub

Answer:

Step-by-step explanation:

add the sides